CN117223292A

CN117223292A - Camera actuator, and camera device and optical device including the same

Info

Publication number: CN117223292A
Application number: CN202280028892.9A
Authority: CN
Inventors: 闵相竣; 郑泰真
Original assignee: LG Innotek Co Ltd
Current assignee: LG Innotek Co Ltd
Priority date: 2021-04-15
Filing date: 2022-04-14
Publication date: 2023-12-12
Also published as: KR20220152748A

Abstract

Disclosed in an embodiment of the present invention is a camera actuator including: a housing; a first lens assembly and a second lens assembly that move in an optical axis direction with respect to the housing; and a driving unit for moving the first lens assembly and the second lens assembly, wherein the driving unit includes: a driving coil; and a driving magnet facing the driving coil, the driving coil including: a first pattern region; and a second pattern region arranged in a direction perpendicular to the first pattern region, wherein a width of the first pattern region is different from a width of the second pattern region.

Description

Camera actuator, and camera device and optical device including the same

Technical Field

The present invention relates to a camera actuator, and a camera device and an optical instrument including the same.

Background

A camera is a device for taking pictures or videos of objects, and is mounted on a mobile device, a drone, a vehicle, or the like. The camera apparatus or the camera module may have an Image Stabilization (IS) function of correcting or preventing image shake caused by a user's motion to improve the quality of an image, an Auto Focus (AF) function of aligning a focal length of a lens by automatically adjusting a distance between an image sensor and the lens, and a zoom function of capturing a remote object by increasing or decreasing a magnification of the remote object through a zoom lens.

Meanwhile, the pixel density of the image sensor increases with an increase in resolution of the camera, so that the size of the pixels becomes smaller, and the amount of received light decreases as the pixels become smaller. Therefore, when the camera has a higher pixel density, image shake due to hand shake due to a reduced shutter speed in a dark environment may occur more seriously. As a representative IS technique, there IS an Optical Image Stabilizer (OIS) technique that corrects the motion by changing the optical path.

According to the general OIS technology, the movement of a camera may be detected by a gyro sensor or the like, and a lens may be tilted or moved, or a camera device including the lens and an image sensor may be tilted or moved based on the detected movement. When a lens or a camera device including the lens and the image sensor is tilted or moved to perform OIS, it is necessary to additionally secure a space for tilting or moving around the lens or the camera device.

Meanwhile, an actuator for OIS may be disposed around the lens. In this case, the actuators for OIS may include actuators responsible for two axes perpendicular to the optical axis Z, i.e., an actuator responsible for X-axis tilting and an actuator responsible for Y-axis tilting.

However, there are large space restrictions for arranging the actuator for OIS according to the need of the ultra-thin ultra-small camera device, and it may be difficult to ensure a sufficient space in which the lens or the camera device itself including the lens and the image sensor can tilt or move to perform OIS. Further, since the camera has a higher pixel density, it is preferable to increase the size of the lens to increase the amount of received light, and there may be a limit to increasing the size of the lens due to the space occupied by the actuator for OIS.

In addition, demands and yields of electronic products such as smart phones and portable phones mounted with cameras are increasing. The trend in cameras for cellular phones is higher resolution and miniaturization, and thus actuators have also become smaller, larger in diameter, and multifunctional. In order to realize a camera for a portable phone having a higher pixel density, improved performance for the portable phone, additional functions such as auto-focusing, improved shutter shake and zoom functions are required.

Further, when the zoom function, the AF function, and the OIS function are all included in the camera apparatus, there is a problem in that the OIS magnet and the AF or zoom magnet are disposed close to each other and cause magnetic field interference.

Disclosure of Invention

Technical problem

The present invention aims to provide a camera actuator, a camera device and an optical instrument suitable for ultra-thin, ultra-small and high-resolution cameras.

Further, the present invention aims to provide a camera actuator, a camera device, and an optical instrument in which the moving distance of a lens assembly is increased by driving the shape of a coil.

Furthermore, the present invention aims to provide a small-sized camera actuator, a camera device, and an optical instrument by the shape of the driving coil.

Further, the present invention aims to provide a camera actuator, a camera device, and an optical instrument having an increased moving distance for Auto Focus (AF) to achieve high magnification zooming.

Further, the present invention aims to provide a camera actuator, a camera device, and an optical instrument, the weight of which is reduced due to the reduction in the size of the driving magnet.

Further, embodiments aim to provide a camera actuator, a camera device, and an optical instrument that can prevent an increase in thickness of an image sensor even when the size thereof increases.

The purpose of the embodiments is not limited thereto, and may also include the purpose or effect that can be identified from the configuration or embodiments that will be described below.

Technical proposal

A camera actuator according to an embodiment of the present invention includes: a housing; a first lens assembly and a second lens assembly configured to move in an optical axis direction based on the housing; and a driving unit configured to move the first lens assembly and the second lens assembly, wherein the driving unit includes a driving coil and a driving magnet facing the driving coil, the driving coil includes a first pattern region and a second pattern region disposed in a direction perpendicular to the first pattern region, and a width of the first pattern region is different from a width of the second pattern region.

The driving coil may include a third pattern region facing the first pattern region and a fourth pattern region facing the second pattern region, and a width of the fourth pattern region may be greater than a width of the third pattern region.

The driving coil may include a curved pattern region connecting the first pattern region to the second pattern region.

The curved pattern region may include first to fourth curved pattern regions.

The width of the first pattern region may be smaller than the width of the second pattern region.

The driving coil may be formed with a plurality of turns.

The first pattern region may be disposed at one side, the second pattern region may be disposed to be spaced apart from the first pattern region, and the third pattern region may be disposed to be spaced apart from the fourth pattern region.

The innermost turn of the plurality of turns of the driving coil may have a first point which is one end of any one of the first pattern region and the third pattern region, the outermost turn of the plurality of turns of the driving coil may have a second point which is one end of any one of the first pattern region and the third pattern region, and a virtual line connecting the first point to the second point may be inclined at a first angle with respect to the optical axis.

The first curved pattern region may be a region in which a width of the first curved pattern region is changed, and a first angle between a first boundary line in contact with the first pattern region and a second boundary line in contact with the second pattern region may be in a range of 20 degrees to 45 degrees.

The first angle may be in the range of 20 degrees to 45 degrees.

The maximum moving distance of the driving magnet may be greater than or equal to the width of the second pattern region.

The ratio of the width of the first pattern region to the width of the second pattern region may be in the range of 1:1.5 to 1:4.5.

The width of the first pattern region may be a length in a vertical direction between an innermost turn and an outermost turn of the plurality of turns in the first pattern region, and the width of the second pattern region may be a length in an optical axis direction between an innermost turn and an outermost turn of the plurality of turns in the second pattern region.

The ratio of the first width to the second width may be in the range of 1:1.5 to 1:4, the first width may be a distance in a vertical direction between an outermost turn of the plurality of turns in the first pattern region and an outermost turn of the plurality of turns in the third pattern region, and the second width may be a distance in an optical axis direction between an outermost turn of the plurality of turns in the second pattern region and an outermost turn of the plurality of turns in the fourth pattern region.

The ratio of the third width to the fourth width may be in the range of 1:1.5 to 1:2.5, the third width may be a distance in the vertical direction between an innermost turn of the plurality of turns in the first pattern region and an innermost turn of the plurality of turns in the second pattern region, and the fourth width may be a distance in the optical axis direction between an innermost turn of the plurality of turns in the third pattern region and an innermost turn of the plurality of turns in the fourth pattern region.

The width of the curved pattern region may decrease as the width approaches the first pattern region or the third pattern region.

The surface of the driving magnet facing the driving coil may include a first magnet region having a first polarity and a second magnet region having a second polarity, and the first polarity may be opposite to the second polarity.

The first magnet region and the second magnet region may be spaced apart from each other in the optical axis direction.

The lengths of the first and second magnet regions in the vertical direction may be smaller than the lengths of the second pattern regions in the vertical direction.

The drive magnet may include a neutral region between the first magnet region and the second magnet region.

The camera actuator may include a plurality of hall sensors located within an innermost turn of the plurality of turns of the drive coil.

The first lens assembly may include a first lens aperture, and the second lens assembly may include a second lens aperture and include at least one lens disposed in each of the first lens aperture and the second lens aperture.

The housing may include a first side portion and a second side portion corresponding to the first side portion, and include a guide unit disposed adjacent to at least one of the first side portion and the second side portion.

The driving coil may be disposed on a side portion disposed adjacent to the guide unit among the first and second side portions.

The first lens assembly may include a first ball disposed at an upper side of the first lens assembly and a second ball disposed at a lower side of the first lens assembly, wherein the first ball and the second ball may be disposed between the first lens assembly and the guide unit.

The first lens assembly may include a first groove in which the first ball is disposed and a second groove in which the second ball is disposed.

The guide unit may include a guide groove in which the first ball and the second ball are disposed.

The width of any one of the plurality of turns in the first pattern region may be smaller than the width of any one of the plurality of turns in the second pattern region.

The camera actuator according to an embodiment includes: a housing; a first lens assembly and a second lens assembly configured to move in an optical axis direction based on a housing; and a driving unit configured to move the first lens assembly and the second lens assembly, wherein the driving unit includes a driving coil and a driving magnet facing the driving coil, the driving coil includes a first pattern region and a second pattern region disposed in a direction perpendicular to the first pattern region, and 1/2 (0.5) times a maximum movement distance of the driving magnet is less than or equal to a width of the second pattern region.

The maximum moving distance of the driving magnet may be greater than the width of the first pattern region.

The ratio of the maximum moving distance of the driving magnet to the width of the first pattern region may be in the range of 1:0.1 to 1:0.6.

The camera device according to an embodiment includes: an optical path changing unit including an incident surface on which light is incident in a first vertical direction and an exit surface from which light exits in a first lateral direction perpendicular to the first vertical direction; a moving unit configured to move a lens module configured to pass light exiting from an exit surface; a reflection unit including a first reflector configured to primarily reflect light passing through the lens module in a second vertical direction, which is a direction opposite to the first vertical direction, a second reflector configured to secondarily reflect the primarily reflected light in a first lateral direction, and a third reflector configured to tertiary reflect the secondarily reflected light in the first vertical direction; and an image sensor configured to receive the light reflected by the third reflector.

The image sensor may include an active region including at least one pixel, and the active region may be parallel to the incident surface.

The uppermost end of the first reflector may be located below a base line, which may be a line parallel to the incident surface.

The lowermost end of the second reflector and the lowermost end of the third reflector may be located above the base line or at the same height as the base line.

The lowermost end of the second reflector and the lowermost end of the third reflector may be located below the baseline or at the same height as the baseline.

The distance from the base line to the lowermost end of the second reflector may be less than the distance from the base line to the uppermost end of the second reflector.

The distance from the base line to the lowermost end of the second reflector may be equal to or less than the distance from the base line to the uppermost end of the first reflector.

The distance in the first vertical direction from the lowermost end of the third reflector to the image sensor may be equal to or less than the distance in the first vertical direction from the lowermost end of the second reflector to the lowermost end of the first reflector.

The camera device may include a convex lens disposed on the incident surface. The camera device may include a concave lens disposed between the image sensor and the third reflector.

The optical path changing unit may be inclined with respect to an axis perpendicular to the optical axis direction of the lens module.

The upper end of the second reflector and the upper end of the third reflector may be spaced apart from each other. Alternatively, the upper end of the second reflector and the upper end of the third reflector may be in contact with each other.

The moving unit may move the lens module in a direction perpendicular to the optical axis direction. The camera device may include a filter disposed between the concave lens and the image sensor.

An optical instrument according to an embodiment includes: a display panel; and a camera device disposed below the display panel, wherein the camera device includes: an optical path changing unit including an incident surface on which light is incident in a first vertical direction and an exit surface from which light exits in a first horizontal direction perpendicular to the first vertical direction; a moving unit configured to move a lens module configured to pass light exiting from an exit surface; a reflection unit including a first reflector configured to primarily reflect light passing through the lens module in a second vertical direction, which is a direction opposite to the first vertical direction, a second reflector configured to secondarily reflect the primarily reflected light in a first lateral direction, and a third reflector configured to tertiary reflect the secondarily reflected light in the first vertical direction; and an image sensor configured to receive the light reflected by the third reflector. The image sensor may include an active region including at least one pixel, and the active region may be parallel to a front surface of the display panel.

Advantageous effects

According to the embodiments of the present invention, a camera actuator, a camera device, and an optical instrument suitable for an ultra-thin, ultra-small, and high-resolution camera can be provided. In particular, an actuator for an Optical Image Stabilizer (OIS) can be effectively arranged even without increasing the overall size of the camera device.

According to the embodiments of the present disclosure, by realizing the X-axis tilt and the Y-axis tilt in a stable structure without causing magnetic field interference between the X-axis tilt and the Y-axis tilt, and by not causing magnetic field interference with an Auto Focus (AF) actuator or a zoom actuator, an accurate OIS function can be realized.

According to the present invention, a camera actuator, a camera device, and an optical instrument suitable for an ultra-thin, ultra-small, and high-resolution camera can be realized.

According to the present invention, it is possible to realize a camera actuator, a camera device, and an optical instrument that increase the moving distance of a lens assembly by the shape of a driving coil.

Further, a camera actuator, a camera device, and an optical instrument that increase a moving distance for AF to achieve high magnification zooming can be realized.

According to the present invention, a small-sized camera actuator, a camera device, and an optical instrument can be realized by the shape of the driving coil.

According to the present invention, it is possible to realize a camera actuator, a camera device, and an optical instrument, the weight of which is reduced due to the reduction in the size of the driving magnet.

Further, according to the embodiment, since the image sensor is disposed parallel to the incident surface of the optical path changing unit or the front surface of the display panel, even when the size of the image sensor increases, the size of the optical instrument in the direction perpendicular to the display panel does not increase, and thus an increase in the thickness of the optical instrument can be prevented.

Further, by adjusting the heights of the second and third reflectors, the height of the optical instrument in the vertical direction can be reduced, thereby preventing an increase in the thickness of the optical instrument.

The various advantageous advantages and effects of the present invention are not limited to the foregoing and will be more readily understood in describing particular embodiments of the invention.

Drawings

Fig. 1 is a perspective view illustrating a camera device according to an embodiment.

Fig. 2 is an exploded perspective view illustrating a camera device according to an embodiment.

Fig. 3 is a sectional view showing the camera device along the line A-A' in fig. 1.

Fig. 4 is an exploded perspective view illustrating a first camera actuator according to an embodiment.

Fig. 5 is a perspective view illustrating a first camera actuator according to an embodiment, in which a first shield and a plate are removed.

Fig. 6 is a sectional view showing the first camera actuator along line B-B' in fig. 5.

Fig. 7 is a cross-sectional view showing the first camera actuator along line C-C' in fig. 5.

Fig. 8 is a perspective view illustrating a second camera actuator according to an embodiment.

Fig. 9 is an exploded perspective view illustrating a second camera actuator according to an embodiment.

Fig. 10 is a sectional view showing the second camera actuator along the line D-D' in fig. 8.

Fig. 11 and 12 are diagrams for describing each driving operation of the lens assembly according to the embodiment.

Fig. 13 is a diagram for describing a driving operation of the second camera actuator according to the embodiment.

Fig. 14 is a schematic diagram showing a circuit board according to an embodiment.

Fig. 15 is a perspective view illustrating a first lens assembly, a first adhesive member, a second adhesive member, and a second lens assembly according to an embodiment.

Fig. 16 is a diagram showing a second driving coil according to an embodiment.

Fig. 17 is a diagram showing angles and thicknesses of turns of a curved pattern region in a second driving coil according to an embodiment.

Fig. 18 is a top view showing the second driving unit and the first plate according to the embodiment.

Fig. 19 is a side view showing the second driving unit according to the embodiment.

Fig. 20 is a diagram for describing movement of the second driving magnet by the second driving unit according to the embodiment.

Fig. 21 is a diagram showing electromagnetic force according to the position of the second driving magnet.

Fig. 22 is a diagram showing the output of the hall sensor according to the moving distance.

Fig. 23 is a diagram showing a second driving coil according to another embodiment.

Fig. 24 is a diagram showing a second driving coil according to still another embodiment.

Fig. 25 is a side view showing a second drive unit according to another modification.

Fig. 26 is a side view showing a second drive unit according to still another modification.

Fig. 27 is a perspective view showing a mobile terminal to which a camera device according to an embodiment is applied.

Fig. 28 is a perspective view showing a vehicle to which the camera device according to the embodiment is applied.

Fig. 29 is an exploded view showing a camera device according to an embodiment.

Fig. 30 is a diagram showing an optical path of the camera device in fig. 29.

Fig. 31 is a diagram showing a reflection unit according to another embodiment.

Fig. 32 is an exploded view showing a camera device according to another embodiment.

Fig. 33 is an exploded view showing a camera device according to still another embodiment.

Fig. 34 is a cross-sectional view illustrating a mobile unit according to another embodiment.

Fig. 35a is a first cross-sectional view illustrating a mobile unit according to yet another embodiment.

Fig. 35b is a second sectional view illustrating the moving unit in fig. 35 a.

Fig. 36a is a first cross-sectional view showing an optical path changing unit according to another embodiment.

Fig. 36b is a second cross-sectional view showing the optical path changing unit in fig. 36 a.

Fig. 37 is a sectional view showing a mobile unit according to still another embodiment.

Fig. 38 is a diagram showing a camera device according to an embodiment disposed below a display panel.

Fig. 39 is a perspective view showing an optical instrument according to an embodiment.

Fig. 40 is a block diagram showing the optical instrument shown in fig. 39.

Detailed Description

As the invention is susceptible to various modifications and alternative embodiments, specific embodiments have been shown and described in the drawings.

It should be understood, however, that there is no intention to limit the invention to the particular embodiments, but to include all modifications and alternatives falling within the spirit and technical scope of the invention.

Terms including ordinal numbers such as second or first may be used to describe various components, but such components are not limited by these terms. These terms are only used for distinguishing one element from another. For example, a second component may be referred to as a first component, and similarly, a first component may also be referred to as a second component, without departing from the scope of the invention. The term "and/or" includes a combination of a plurality of related listed items or any one of a plurality of related listed items.

When a first element is described as being "connected" or "coupled" to a second element, it is understood that the first element may be directly connected or coupled to the second element or a third element may be present therebetween. On the other hand, when a first component is described as being "directly connected" or "directly coupled" to a second component, it should be understood that a third component is not present therebetween.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Singular forms include plural forms unless the context clearly dictates otherwise. In the present disclosure, it should be understood that terms such as "comprises" or "comprising" are intended to specify the presence of the stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

Unless otherwise defined, all terms including technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms such as defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Hereinafter, embodiments will be described in detail with reference to the drawings, and the same or corresponding parts are denoted by the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted.

Fig. 1 is a perspective view illustrating a camera device according to an embodiment, fig. 2 is an exploded perspective view illustrating the camera device according to an embodiment, and fig. 3 is a sectional view illustrating the camera device along a line A-A' in fig. 1.

Referring to fig. 1 and 2, a camera module 1000 according to an embodiment may include a cover CV, a first camera actuator 1100, a second camera actuator 1200, and a circuit board 1300. Here, the first camera actuator 1100 may be used interchangeably with "first actuator" and the second camera actuator 1200 may be used interchangeably with "second actuator".

The cover CV may cover the first camera actuator 1100 and/or the second camera actuator 1200. The bonding strength between the first camera actuator 1100 and the second camera actuator 1200 may be increased by the cover CV.

In addition, the cover CV may be made of a material that blocks electromagnetic waves. Accordingly, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV can be easily protected. The cover CV may be a shield.

Further, the first camera actuator 1100 may be an Optical Image Stabilizer (OIS) actuator.

In an embodiment, the first camera actuator 1100 may change the optical path. In an embodiment, the first camera actuator 1100 may vertically change the optical path through an internal optical member (e.g., a prism or a mirror). With this configuration, even when the thickness of the mobile terminal is reduced, a lens configuration larger than the thickness of the mobile terminal is provided in the mobile terminal, so that the magnification, autofocus (AF), and OIS functions can be performed by the change of the optical path.

The first camera actuator 1100 may change the optical path from the first direction to the third direction. In the present specification, the optical axis direction is a third direction or a Z-axis direction and corresponds to a traveling direction of light supplied to the image sensor.

Further, the first camera actuator 1100 may include a fixed focal length lens provided in a predetermined barrel (not shown). The fixed focal length lens may be referred to as a "single focal length lens" or "single lens".

The second camera actuator 1200 may be disposed at a rear end of the first camera actuator 1100. The second camera actuator 1200 may be coupled to the first camera actuator 1100. Further, the mutual combination may be performed by various methods.

Further, the second camera actuator 1200 may be a zoom actuator or an AF actuator. For example, the second camera actuator 1200 may support one lens or a plurality of lenses and perform an AF function or a zoom function by moving the lenses according to a predetermined control signal of the controller.

The circuit board 1300 may be disposed at a rear end of the second camera actuator 1200. The circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100. In addition, a plurality of circuit boards 1300 may be provided.

The circuit board 1300 may be connected to the second housing of the second camera actuator 1200, and may be provided with an image sensor. In addition, a base unit including a filter may be disposed on the circuit board 1300. Which will be described below.

The camera device according to the embodiment may be formed of one camera device or a plurality of camera devices. For example, the plurality of camera devices may include a first camera device and a second camera device. Further, as described above, the camera device may be used interchangeably with "camera module", "camera device", "imaging module", "imager", and the like.

Furthermore, the first camera device may comprise one actuator or a plurality of actuators. For example, the first camera device may include a first camera actuator 1100 and a second camera actuator 1200.

Further, the second camera device may include an actuator (not shown) provided in a predetermined housing (not shown) and capable of driving the lens unit. The actuator may be a voice coil motor, a micro-actuator, a silicon actuator, or the like, and is applied to various methods such as an electrostatic method, a thermal method, a bimorph method, and an electrostatic force method, but the present invention is not limited thereto. Further, in the specification, the camera actuator may be referred to as an "actuator" or the like. Further, a camera device formed of a plurality of camera devices may be mounted in various electronic devices such as a mobile terminal.

Referring to fig. 3, the camera apparatus according to the embodiment may include a first camera actuator 1100 for performing OIS function and a second camera actuator 1200 for performing zoom function and AF function.

Light may enter the camera device through an open area located in the upper surface of the first camera actuator 1100. In other words, light may be incident to the first camera actuator 1100 in the optical axis direction (e.g., the X-axis direction), and the optical path may be changed to the vertical direction (e.g., the Z-axis direction) by the optical member. In addition, light may pass through the second camera actuator 1200 and may be incident to an image sensor IS (PATH) located at one end of the second camera actuator 1200.

In the specification, the lower surface means one side in the first direction. Further, the first direction is the X-axis direction in the drawing, and may be used interchangeably with the second axis direction or the like. The second direction is the Y-axis direction in the drawing, and may be used interchangeably with the first axis direction, etc. The second direction is a direction perpendicular to the first direction. Further, the third direction is the Z-axis direction in the drawing, and may be used interchangeably with the third axis direction and the like. The third direction is perpendicular to both the first direction and the second direction. Here, the third direction (Z-axis direction) corresponds to the optical axis direction, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis, and can be tilted by the second camera actuator. Which will be described in detail below. Further, hereinafter, the optical axis direction corresponds to the optical path, and is a third direction (Z-axis direction) in the description of the second camera actuator 1200, and the following description will be made based thereon.

Further, with this configuration, the camera apparatus according to the embodiment can solve the spatial limitation of the first camera actuator and the second camera actuator by changing the optical path. In other words, the camera apparatus according to the embodiment can extend the optical path while minimizing the thickness of the camera apparatus in response to the change of the optical path. Further, it should be appreciated that the second camera actuator may provide a wide range of magnification by controlling the focus in the extended optical path, etc.

Further, the camera apparatus according to the embodiment may realize OIS by controlling an optical path via the first camera actuator, thereby minimizing occurrence of an decentering or tilting phenomenon and providing optimal optical characteristics.

Further, the second camera actuator 1200 may include an optical system and a lens driving unit. For example, at least one of the first lens assembly, the second lens assembly, the third lens assembly, and the guide pin may be disposed in the second camera actuator 1200.

Further, the second camera actuator 1200 may include a coil and a magnet and perform a high magnification zoom function.

For example, the first lens assembly and the second lens assembly may be moving lenses that are moved by a coil, a magnet, and a guide pin, and the third lens assembly may be a fixed lens, but the present invention is not limited thereto. For example, the third lens assembly may perform a function of a focus by which light forms an image at a specific position, and the first lens assembly may perform a function of a transformer for re-forming an image formed by the third lens assembly as a focus at another position. Meanwhile, the first lens assembly may be in a state in which a change in magnification is large because a distance to an object or an image distance is greatly changed, and the first lens assembly as a transducer may play an important role in a change in focal length or magnification of an optical system. Meanwhile, the imaging point of the image formed by the first lens assembly as the transducer may slightly differ according to the position. Accordingly, the second lens assembly may perform a position compensation function on the image formed by the transducer. For example, the second lens assembly may perform a function of a compensator that precisely forms an image at an actual position of the image sensor using an imaging point of the image formed by the first lens assembly as a transducer. For example, the first lens assembly and the second lens assembly may be driven by electromagnetic force generated by interaction between the coil and the magnet. The above description may be applied to a lens assembly to be described below.

Meanwhile, when the OIS actuator and the AF/zoom actuator are provided according to an embodiment of the present invention, it is possible to prevent interference with the magnetic field of the AF or zoom magnet when OIS is driven. Since the first driving magnet of the first camera actuator 1100 is provided separately from the second camera actuator 1200, it is possible to prevent magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200. In this specification, OIS may be used interchangeably with terms such as hand shake correction, optical image stabilization, optical image correction, shake correction, and the like.

Referring to fig. 4, the first camera actuator 1100 according to the embodiment includes a first shield case (not shown), a first housing 1120, a mover 1130, a rotating unit 1140, and a first driving unit 1150.

The mover 1130 may include a holder 1131 and an optical member 1132 disposed on the holder 1131. In addition, the rotation unit 1140 includes a rotation plate 1141, a first magnetic portion 1142 having a coupling strength with the rotation plate 1141, and a second magnetic portion 1143 located inside the rotation plate 1141. Further, the first driving unit 1150 includes a driving magnet 1151, a driving coil 1152, a hall sensor unit 1153, and a first plate unit 1154. The rotating plate may be used interchangeably with "tilt plate", "moving plate", etc.

The first shield case (not shown) may be located at the outermost side of the first camera actuator 1100 and disposed to surround the rotation unit 1140 and the first driving unit 1150, which will be described below.

The first shield case (not shown) may block or reduce electromagnetic waves generated from the outside. Accordingly, occurrence of malfunction of the rotating unit 1140 or the first driving unit 1150 may be reduced.

The first housing 1120 may be located inside a first shield can (not shown). Further, the first housing 1120 may be located at an inner side of a first plate unit 1154 to be described below. The first housing 1120 may be fastened by being mounted into or mated with a first shield (not shown).

The first housing 1120 may be formed of a plurality of housing sides. The first housing 1120 may include a first housing side 1121, a second housing side 1122, a third housing side 1123, and a fourth housing side 1124.

The first and second case sides 1121 and 1122 may be disposed to face each other. Further, the third and fourth housing sides 1123, 1124 may be disposed between the first and second housing sides 1121, 1122.

The third housing side 1123 may be in contact with the first, second, and fourth housing sides 1121, 1122, 1124. Further, the third housing side 1123 may include a lower surface as a lower side of the first housing 1120.

Further, the first housing side 1121 may include a first housing hole 1121a. A first coil 1152a, which will be described below, may be located in the first housing hole 1121a.

Further, the second housing side 1122 may include a second housing hole 1122a. Further, a second coil 1152b, which will be described below, may be located in the second housing hole 1122a.

The first coil 1152a and the second coil 1152b may be coupled to the first plate unit 1154. In an embodiment, the first coil 1152a and the second coil 1152b may be electrically connected to the first plate unit 1154 such that current may flow therebetween. The current is an element of electromagnetic force capable of tilting the first camera actuator with respect to the X-axis.

Further, the third housing side 1123 may include a third housing aperture 1123a. The first coil 1152c, which will be described below, may be located in the third housing hole 1123a. The third coil 1152c may be coupled to the first plate unit 1154. Further, the third coil 1152c may be electrically connected to the first plate unit 1154 such that current may flow therebetween. The current is an element of electromagnetic force capable of tilting the first camera actuator with respect to the Y-axis.

The fourth housing side 1124 may include a first housing groove 1124a. The first magnetic portion 1142, which will be described below, may be provided in a region facing the first housing groove 1124a. Accordingly, the first housing 1120 may be coupled to the rotating plate 1141 by a magnetic force or the like.

Further, the first housing groove 1124a according to an embodiment may be located on an inner or outer surface of the fourth housing side 1124. Accordingly, the first magnetic portion 1142 may also be provided at a position corresponding to the first housing groove 1124 a.

Further, the first housing 1120 may include a receiving part 1125 formed of first to fourth housing sides 1121 to 1224. The mover 1130 may be located in the receiving portion 1125.

The mover 1130 may include a holder 1131 and an optical member 1132 disposed on the holder 1131.

The holder 1131 may be disposed in the receiving portion 1125 of the first housing 1120. The holder 1131 may include first to fourth prism outer surfaces corresponding to the first, second, third, and fourth housing sides 1121, 1122, 1123, and 1124, respectively.

A seating groove in which the second magnetic part 1143 may be seated may be provided in the fourth prism outer surface facing the fourth housing side 1124.

The optical member 1132 may be disposed on the holder 1131. For this, the holder 1131 may have a seating surface, and the seating surface may be formed of a receiving groove. The optical member 1132 may include a reflector disposed therein. However, the present invention is not limited thereto. Further, the optical member 1132 may reflect light reflected from the outside (e.g., an object) into the camera device. In other words, the optical member 1132 may solve the spatial limitation of the first and second camera actuators by changing the path of the reflected light. Accordingly, it should be appreciated that the camera device may provide a high magnification range by extending the optical path while minimizing its thickness.

The rotation unit 1140 includes a rotation plate 1141, a first magnetic part 1142 having a coupling strength with the rotation plate 1141, and a second magnetic part 1143 located inside the rotation plate 1141.

The rotating plate 1141 may be coupled to the mover 1130 and the first housing 1120. The rotating plate 1141 may include additional magnetic portions (not shown) located therein.

Further, the rotation plate 1141 may be disposed adjacent to the optical axis. Therefore, the actuator according to the embodiment can easily change the optical path according to the inclination of the first axis and the second axis, which will be described below.

The rotation plate 1141 may include first protrusions disposed to be spaced apart from each other in a first direction (X-axis direction) and second protrusions disposed to be spaced apart from each other in a second direction (Y-axis direction). Further, the first protrusion and the second protrusion may protrude in opposite directions. Which will be described in detail below.

Further, the first magnetic part 1142 includes a plurality of yokes, and the plurality of yokes may be arranged to face each other with respect to the rotating plate 1141. In an embodiment, the first magnetic portion 1142 may include a plurality of yokes facing. In addition, the rotating plate 1141 may be located between the plurality of yokes.

As described above, the first magnetic portion 1142 may be located in the first housing 1120. Further, as described above, the first magnetic portion 1142 may be disposed on an inner or outer surface of the fourth housing side 1124. For example, the first magnetic portion 1142 may be disposed in a groove formed in an outer surface of the fourth housing side 1124. Alternatively, the first magnetic portion 1142 may be disposed in the first housing groove 1124 a.

Further, the second magnetic portion 1143 may be located on an outer surface of the mover 1130, specifically, an outer surface of the holder 1131. With this configuration, the rotation plate 1141 may be easily coupled to the first housing 1120 and the mover 1130 by a coupling strength generated by a magnetic force between the second magnetic part 1143 and the first magnetic part 1142 provided therein. In the present invention, the positions of the first magnetic portion 1142 and the second magnetic portion 1143 can be moved.

The first driving unit 1150 includes a first driving magnet 1151, a first driving coil 1152, a first hall sensor unit 1153, and a first plate unit 1154.

The first driving magnet 1151 may include a plurality of magnets. In an embodiment, the first driving magnet 1151 may include a first magnet 1151a, a second magnet 1151b, and a third magnet 1151c.

The first, second and third magnets 1151a, 1151b, 1151c may each be located on an outer surface of the holder 1131. Further, the first magnet 1151a and the second magnet 1151b may be disposed to face each other. Further, the third magnet 1151c may be located on a lower surface of the outer surface of the holder 1131. Which will be described in detail below.

The first driving magnet 1152 may include a plurality of coils. In an embodiment, the first driving coil 1152 may include a first coil 1152a, a second coil 1152b, and a third coil 1152c.

The first coil 1152a may be disposed to face the first magnet 1151a. Accordingly, as described above, the first coil 1152a may be located in the first housing hole 1121a of the first housing side 1121.

Further, the second coil 1152b may be disposed to face the second magnet 1151b. Accordingly, as described above, the second coil 1152b may be located in the second housing hole 1122a of the second housing side 1122.

The first coil 1152a may be disposed to face the second coil 1152b. In other words, the first coil 1152a may be disposed symmetrically with respect to the second coil 1152b with respect to the first direction (X-axis direction). Which may be applied to the first and second magnets 1151a and 1151b in the same manner. In other words, the first and second magnets 1151a and 1151b may be symmetrically disposed with respect to the first direction (X-axis direction). Further, the first coil 1152a, the second coil 1152b, the first magnet 1151a, and the second magnet 1151b may be disposed to at least partially overlap in the second direction (Y-axis direction). With this configuration, by the electromagnetic force between the first coil 1152a and the first magnet 1151a and the electromagnetic force between the second coil 1152b and the second magnet 1151b, the X-axis tilting can be accurately performed without tilting to one side.

The third coil 1152c may be disposed to face the third magnet 1151c. Accordingly, as described above, the third coil 1152c may be located in the third housing hole 1123a of the third housing side 1123. The third coil 1152c may generate electromagnetic force with the third magnet 1151c such that the mover 1130 and the rotating unit 1140 may perform Y-axis tilting based on the first housing 1120.

Here, the X-axis inclination means inclination with respect to the X-axis, and the Y-axis inclination means inclination with respect to the Y-axis.

The first hall sensor unit 1153 may include a plurality of hall sensors. The hall sensor corresponds to and is used interchangeably with "sensor unit" to be described below. In an embodiment, the first hall sensor unit 1153 may include a first hall sensor 1153a, a second hall sensor 1153b, and a third hall sensor 1153c.

The first hall sensor 1153a may be located inside the first coil 1152 a. Further, the second hall sensor 1153b may be disposed symmetrically to the first hall sensor 1153a in the first direction (X-axis direction) and the third direction (Z-axis direction). Further, the second hall sensor 1153b may be located inside the second coil 1152 b.

The first hall sensor 1153a may detect a change in magnetic flux inside the first coil 1152 a. Further, the second hall sensor 1153b may detect a change in magnetic flux in the second coil 1152 b. Accordingly, position sensing can be performed between the first and second magnets 1151a and 1151b and the first and second hall sensors 1153a and 1153 b. The first camera actuator according to the embodiment can more precisely control the X-axis tilt by detecting the position through, for example, the first hall sensor 1153a and the second hall sensor 1153 b.

Further, the third hall sensor 1153c may be located inside the third coil 1152 c. The third hall sensor 1153c may detect a change in magnetic flux inside the third coil 1152 c. Accordingly, position sensing can be performed between the third magnet 1151c and the third hall sensor 1153 bc. Thus, the first camera actuator according to the embodiment can control the Y-axis tilt. At least one of the first to third hall sensors may be provided.

The first plate unit 1154 may be located below the first driving unit 1150. The first plate unit 1154 may be electrically connected to the first driving coil 1152 and the first hall sensor unit 1153. For example, the first plate unit 1154 may be coupled to the first driving coil 1152 and the first hall sensor unit 1153 by a Surface Mount Technology (SMT). However, the present invention is not limited to this method.

The first plate unit 1154 may be located between a first shield case (not shown) and the first housing 1120, and coupled to the first shield case and the first housing 1120. The bonding method may be performed differently as described above. Further, by combining, the first driving coil 1152 and the first hall sensor unit 1153 may be located within an outer surface of the first housing 1120.

The first circuit board unit 1154 may include a circuit board having a wiring pattern that may be electrically connected, such as a rigid printed circuit board (rigid PCB), a flexible PCB, or a rigid-flexible (RFPCB). However, the present invention is not limited to these types.

Fig. 5 is a perspective view illustrating a first camera actuator according to an embodiment, in which a first shield and a plate are removed, fig. 6 is a sectional view illustrating the first camera actuator along a line B-B 'in fig. 5, and fig. 7 is a sectional view illustrating the first camera actuator along a line C-C' in fig. 5.

Referring to fig. 5-7, a first coil 1152a may be located on the first housing side 1121.

Further, the first coil 1152a and the first magnet 1151a may be disposed to face each other. At least a portion of the first magnet 1151a may overlap with the first coil 1152a in the second direction (Y-axis direction).

Further, the second coil 1152b may be located on the second housing side 1122. Accordingly, the second coil 1152b and the second magnet 1151b may be disposed to face each other. At least a portion of the second magnet 1151b may overlap the second coil 1152b in the second direction (Y-axis direction).

Further, the first coil 1152a and the second coil 1152b may overlap each other in the second direction (Y-axis direction). Further, the first magnet 1151a and the second magnet 1151b may overlap each other in the second direction (Y-axis direction). With this configuration, the electromagnetic force applied to the outer surfaces of the holders (the first holder outer surface and the second holder outer surface) can be located on the axis parallel to the second direction (Y-axis direction), so that the X-axis tilting can be accurately and precisely performed.

Further, a first receiving groove (not shown) may be located in the fourth holder outer surface. Further, the first protrusions PR1a and PR1b may be disposed in the first receiving groove. Therefore, when the X-axis tilting is performed, the first protrusions PR1a and PR1b may be reference axes (or rotation axes) on which the tilting is performed. Accordingly, the rotation plate 1141 and the mover 1130 may move to the left or right.

As described above, the second protrusion PR2 may be seated in a groove of an inner surface of the fourth housing side 1124. Further, when performing the Y-axis tilting, the rotation plate and the mover may be rotated using the second protrusion PR2 as a reference axis of the Y-axis tilting.

According to an embodiment, OIS may be performed by the first protrusion and the second protrusion.

Referring to fig. 6, Y-axis tilting may be performed. In other words, OIS may be achieved by rotating the first camera actuator in a first direction (X-axis direction).

In an embodiment, the third magnet 1151c disposed under the holder 1131 may generate an electromagnetic force with the third coil 1152c to tilt or rotate the mover 1130 in the first direction (X-axis direction).

Specifically, the rotating plate 1141 may be coupled to the first housing 1120 and the mover 1130 through the first magnetic part 1142 in the first housing 1120 and the second magnetic part 1143 in the mover 1130. Further, the first protrusions PR1 may be spaced apart in the first direction (X-axis direction) and supported by the first housing 1120.

Further, the rotation plate 1141 may be rotated or tilted using the second protrusion PR2 protruding toward the mover 1130 as a reference axis (or rotation axis). In other words, the rotation plate 1141 may perform Y-axis tilting using the second protrusion PR2 as a reference axis.

OIS may be achieved, for example, by rotating the mover 130 by a first angle 01 (x1→x1a or X1B) in the X-axis direction by first electromagnetic forces F1A and F1B between a third magnet 1151c provided in a third seating groove and a third coil 1152c provided on the third plate side. The first angle θ1 may be in a range of ±1° to 3 °. However, the present invention is not limited thereto.

Hereinafter, in the first camera actuator according to various embodiments, the electromagnetic force may move the mover by generating a force in the direction, or may move the mover in the direction even when a force is generated in another direction. In other words, the direction of the electromagnetic force is the direction of the force generated by the magnet and the coil for moving the mover.

Referring to fig. 7, X-axis tilting may be performed. In other words, OIS may be achieved by rotating mover 1130 in a second direction (Y-axis direction).

OIS may be implemented by tilting or rotating (or X-axis tilting) mover 1130 in the Y-axis direction.

In an embodiment, the first and second magnets 1151a and 1151b provided in the holder 1131 may tilt or rotate the rotating plate 1141 and the mover 1130 in the second direction (Y-axis direction) by generating electromagnetic forces with the first and second coils 1152a and 1152b, respectively.

The rotation plate 1141 may be rotated or tilted (X-axis tilt) in the second direction using the first protrusion PR1 as a reference axis (or rotation axis).

For example, OIS may be achieved by rotating mover 130 by a second angle θ2 (y1→y1a, Y1B) in the Y-axis direction by second electromagnetic forces F2A and F2B between first and second magnets 1151a and 1151B disposed in the first seating groove and first and second coils 1152A and 1152B disposed on the first and second plate sides. The second angle θ2 may be in a range of ±1° to 3 °. However, the present invention is not limited thereto.

Further, as described above, the electromagnetic force generated by the first and second magnets 1151a and 1151b and the first and second coils 1152a and 1152b may act in the third direction or in a direction opposite to the third direction. For example, electromagnetic force may be generated in a third direction (Z-axis direction) on the left side portion of the mover 1130 and act on the right side portion of the mover 1130 in a direction opposite to the third direction (Z-axis direction). Thus, the mover 1130 may rotate relative to the first direction. Alternatively, the mover 130 may move in the second direction.

As described above, the first camera actuator according to the embodiment may control the rotation of the rotation plate 1141 and the mover 1130 in the first direction (X-axis direction) or the second direction (Y-axis direction) by the electromagnetic force between the first driving magnet in the holder and the first driving coil provided in the housing, thereby minimizing the occurrence of the eccentricity or tilting phenomenon and providing the optimal optical characteristics when OIS is implemented. Further, as described above, "Y-axis tilt" may correspond to rotation or tilting in a first direction (X-axis direction). Further, "X-axis tilt" may correspond to rotation or tilting in a second direction (Y-axis direction).

Fig. 8 is a perspective view illustrating a second camera actuator according to an embodiment, fig. 9 is an exploded perspective view illustrating the second camera actuator according to an embodiment, fig. 10 is a cross-sectional view illustrating the second camera actuator along a line D-D' in fig. 8, fig. 11 and 12 are diagrams for describing each driving operation of a lens assembly according to an embodiment, and fig. 13 is a diagram for describing driving of the second camera actuator according to an embodiment.

Referring to fig. 8 to 10, the second camera actuator 1200 according to the embodiment may include a lens unit 1220, a second case 1230, a second driving unit 1250, a base unit 1260, a second plate unit 1270, and an adhesive member 1280. In addition, the second camera actuator 1200 may further include a second shield case (not shown), an elastic unit (not shown), and an adhesive member (not shown).

The second shield case (not shown) may be located in one region (e.g., the outermost side) of the second camera actuator 1200 and disposed to surround components (the lens unit 1220, the second case 1230, the second driving unit 1250, the base unit 1260, the second plate unit 1270, and the Image Sensor (IS)) to be described below.

The second shield case (not shown) may block or reduce electromagnetic waves generated from the outside. Therefore, occurrence of a failure in the second driving unit 1250 can be reduced.

The lens unit 1220 may be located in a second shield case (not shown). The lens unit 1220 may move in a third direction (Z-axis direction or optical axis direction). Accordingly, the AF function and the zoom function described above can be performed.

Further, the lens unit 1220 may be located in the second case 1230. Accordingly, at least a portion of the lens unit 1220 may be moved in the optical axis direction or the third direction (Z-axis direction) in the second case 1230.

In particular, the lens unit 1220 may include a lens group 1221 and a moving assembly 1222.

First, the lens group 1221 may include at least one lens. Further, although a plurality of lens groups 1221 may be formed, the following description will be made based on one lens group.

The lens group 1221 may be coupled to the moving assembly 1222 and moved in a third direction (Z-axis direction) by an electromagnetic force generated from the fourth and fifth magnets 1252a and 1252b coupled to the moving assembly 1222.

In an embodiment, the lens group 1221 may include a first lens group 1221a, a second lens group 1221b, and a third lens group 1221c. The first lens group 1221a, the second lens group 1221b, and the third lens group 1221c may be sequentially disposed in the optical axis direction. In addition, the lens group 1221 may further include a fourth lens group 1221d. The fourth lens group 1221d may be disposed at a rear end of the third lens group 1221c.

The first lens group 1221a may be fixedly coupled to the 2-1 housing. In other words, the first lens group 1221a may not move in the optical axis direction. The 2-1 housing coupled to the first lens group 1221a may be a "lens assembly," for example, the 2-1 housing may be a first lens assembly, and the first lens assembly 122a to be described below may be a second lens assembly. However, the following description will be made based on the first lens assembly 1222a and the second lens assembly 1222 b.

The second lens group 1221b may be coupled to the first lens assembly 1222a to move in a third direction or an optical axis direction. Magnification adjustment may be performed by moving the first lens assembly 1222a and the second lens group 1221 b.

The third lens group 1221c may be coupled to the second lens assembly 1222b to move in a third direction or an optical axis direction. The focus adjustment or the auto-focusing may be performed by moving the third lens group 1221.

However, the present invention is not limited to the number of lens groups, the fourth lens group 1221d may not be present, or additional lens groups other than the fourth lens group 1121d may be further provided, or the like.

The movement assembly 1222 may include an open area surrounding the lens group 1221. The movement assembly 1222 may be used interchangeably with the lens assembly. Further, the movement assembly 1222 may be coupled to the lens group 1221 by various methods. In addition, the moving assembly 1222 may include grooves in sides thereof, and may be coupled to the fourth and fifth magnets 1252a and 1252b through the grooves. A coupling member or the like may be applied to the groove.

Further, the moving assembly 1222 may be coupled to an elastic unit (not shown) at an upper end and a rear end thereof. Accordingly, the moving assembly 1222 may be supported by an elastic unit (not shown) while moving in a third direction (Z-axis direction). In other words, the position of the moving assembly 1222 may be maintained in a third direction (Z-axis direction). The elastic unit (not shown) may be formed of various elastic elements such as a plate spring.

The movement assembly 1222 may be located in the second housing 1230, and may include a first lens assembly 1222a and a second lens assembly 1222b.

The region of the second lens assembly 1222b where the third lens group is disposed may be located at the rear end of the first lens assembly 1222 a. In other words, the region of the second lens assembly 1222b where the third lens group 1221c is disposed may be located between the region of the first lens assembly 1222a where the second lens group 1221b is disposed and the image sensor.

The first and second lens assemblies 1222a and 1222b may face the first and second guide units G1 and G2, respectively. The first and second guide units G1 and G2 may be located on first and second sides of the second case 1230 to be described below. Which will be described in detail below.

In addition, a second drive magnet may be disposed on the outer surfaces of the first and second lens assemblies 1222a and 1222b. For example, fifth magnet 1252b may be disposed on an outer surface of second lens assembly 1222b. Fourth magnet 1252a may be disposed on an outer surface of first lens assembly 1222 a.

The second case 1230 may be disposed between the lens unit 1220 and a second shield case (not shown). In addition, the second case 1230 may be disposed to surround the lens unit 1220.

The second housing 1230 may include a 2-1 housing 1231 and a 2-2 housing 1232. The 2-1 housing 1231 may be coupled to the first lens group 1221a and may also be coupled to the first camera actuator described above. The 2-1 housing 1231 may be positioned in front of the 2-2 housing 1232.

Further, the 2-2 housing 1232 may be located at the rear end of the 2-1 housing 1231. The lens unit 1220 may be disposed inside the 2-2 housing 1232.

Holes may be formed in the sides of the second housing 1230 (or the 2-2 housing 1232). The fourth coil 1251a and the fifth coil 1251b may be disposed in the hole. The holes may be provided to correspond to the above-described grooves of the moving assembly 1222.

In an embodiment, the second housing 1230 (specifically, the 2-2 housing 1232) may include a first side 1232a and a second side 1232b. The first and second side portions 1232a and 1232b may be disposed to correspond to each other. For example, the first and second side portions 1232a and 1232b may be symmetrically disposed with respect to the third direction. The second driving coil 1251 may be positioned on the first side portion 1232a and the second side portion 1232b. In addition, the second plate unit 1270 may be disposed on outer surfaces of the first and second sides 1232a and 1232b. In other words, the first plate 1271 may be located on an outer surface of the first side 1232a and the second plate 1272 may be located on an outer surface of the second side 1232b.

Further, the first and second guide units G1 and G2 may be located on the first and second sides 1232a and 1232b of the second housing 1232 (specifically, the 2-2 housing 1232).

The first guide unit G1 and the second guide unit G2 may be disposed to correspond to each other. For example, the first guide unit G1 and the second guide unit G2 may be disposed to face each other with respect to the third direction (Z-axis direction). Further, the first guide unit G1 and the second guide unit G2 may at least partially overlap each other in the second direction (Y-axis direction).

The first and second guide units G1 and G2 may include at least one groove (e.g., guide groove) or recess. Further, the first ball B1 or the second ball B2 may be disposed in a groove or a recess. Therefore, the first ball B1 or the second ball B2 can move in the third direction (Z-axis direction) in the guide groove of the first guide unit G1 or the guide groove of the second guide unit G2.

Alternatively, the first ball B1 or the second ball B2 may move in the third direction along a track formed inside the first side 1232a of the second case 1230 or a track formed inside the second side 1232B of the second case 1230.

Accordingly, the first lens assembly 1222a and the second lens assembly 1222b may move in a third direction.

According to an embodiment, the first ball B1 may be disposed at an upper portion of the first lens assembly 1222a or the second lens assembly 1222B. In addition, a second ball B2 may be disposed at a lower portion of the first lens assembly 1222a or the second lens assembly 1222B. For example, the first ball B1 may be located above the second ball B2. Therefore, at least a portion of the first ball B1 may overlap with the second ball B2 in the first direction (X-axis direction) according to the position.

Further, the first and second guide units G1 and G2 may include first guide grooves GG1a and GG2a facing the first recess RS 1. Further, the first and second guide units G1 and G2 may include second guide grooves GG1b and GG2b facing the second recess RS 2. The first guide grooves GG1a and GG2a and the second guide grooves GG1b and GG2b may be grooves extending in a third direction (Z-axis direction). Further, the first guide grooves GG1a and GG2a and the second guide grooves GG1b and GG2b may have different shapes. For example, the first guide grooves GG1a and GG2a may be grooves having inclined side surfaces, and the second guide grooves GG1b and GG2b may be grooves having side surfaces perpendicular to the lower surfaces thereof.

The fifth magnet 1252b may be disposed to face the fifth coil 1251b. Further, the fourth magnet 1252a may be disposed to face the fourth coil 1251a.

The elastic unit (not shown) may include a first elastic member (not shown) and a second elastic member (not shown). A first elastic member (not shown) may be coupled to an upper surface of the moving assembly 1222. A second elastic member (not shown) may be coupled to a lower surface of the moving assembly 1222. Further, the first elastic member (not shown) and the second elastic member (not shown) may be formed of plate springs as described above. Further, a first elastic member (not shown) and a second elastic member (not shown) may provide elasticity for moving the moving assembly 1222. However, the present invention is not limited to the above-described positions, and the elastic unit may be provided at various positions.

Further, the second driving unit 1250 may provide a driving force for moving the lens unit 1220 in a third direction (Z-axis direction). The second driving unit 1250 may include a second driving coil 1251 and a second driving magnet 1252. In addition, the second driving unit 1250 may further include a second hall sensor unit. The second hall sensor unit 1253 may include at least one fourth hall sensor 1253a, and may be located inside or outside the second driving coil 1251.

The moving assembly may be moved in a third direction (Z-axis direction) by an electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252.

The second driving coil 1251 may include a fourth coil 1251a and a fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b may be disposed in holes formed in the side of the second case 1230. Further, the fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second board unit 1270. Accordingly, the fourth coil 1251a and the fifth coil 1251b may receive current or the like through the second board unit 1270.

Further, the second driving coil 1251 may be coupled to the second plate unit 1270 by a yoke or the like. Further, in the embodiment, the second driving coil 1251 is a fixed element together with the second plate unit 1270. In contrast, the second driving magnet 1252 is a moving element that moves in the optical axis direction (Z-axis direction) together with the first assembly and the second assembly.

The second driving magnet 1252 may include a fourth magnet 1252a and a fifth magnet 1252b. The fourth and fifth magnets 1252a and 1252b may be disposed in the above-described grooves of the moving assembly 1222 and are disposed to correspond to the fourth and fifth coils 1251a and 1251b. In addition, the second driving magnet 1252 may be coupled to the first lens assembly and the second lens assembly (or the moving assembly) together with a yoke described below. The yoke may be disposed in the first lens assembly and the second lens assembly. Thus, the second drive magnet may be combined with the first lens assembly and the second lens assembly. In addition, the yoke may be provided outside the second housing or outside the second driving coil. Thus, the coupling between the first and second lens assemblies and the second housing can be maintained.

The base unit 1260 may be located between the lens unit 1220 and the image sensor IS. Components such as filters may be secured to the base unit 1260. Further, the base unit 1260 may be disposed to surround the image sensor described above. With this configuration, since the image sensor is protected from foreign substances or the like, the reliability of the device can be improved. However, the following description will be made with the drawings removed therefrom.

Further, the second camera actuator may be a fixed zoom or a continuous zoom. For example, a second camera actuator may provide movement of the lens group 1221.

Further, the second camera actuator may be formed of a plurality of lens assemblies. For example, in addition to the first lens assembly 1222a and the second lens assembly 1222b, at least one of third lens assemblies (not shown) and a guide pin (not shown) may be provided in the second camera actuator. In this regard, the above may be applied. Accordingly, the second camera actuator can perform a high magnification zoom function through the second driving unit. For example, the first lens assembly 1222a and the second lens assembly 1222b may be a moving lens that moves by a second driving unit and a guide pin (not shown), and the third lens assembly (not shown) may be a fixed lens, but the present invention is not limited thereto. For example, the third lens assembly (not shown) may perform the function of a focuser through which light forms an image at a specific position, and the first lens assembly may perform the function of a transformer that reforms an image formed by the third lens assembly (not shown) as a focuser at another position. Meanwhile, the first lens assembly may be in a state in which a change in magnification is large because a distance to an object or an image distance is greatly changed, and the first lens assembly as a transducer may play an important role in a change in focal length or magnification of an optical system. Meanwhile, the imaging point of the image formed by the first lens assembly as the transducer may slightly differ according to the position. Accordingly, the second lens assembly may perform a position compensation function on the image formed by the transducer. For example, the second lens assembly may perform a function of a compensator that precisely forms an image at an actual position of the image sensor using an imaging point of the image formed by the second lens assembly 1222b as a transducer. However, the structure of the embodiment will be described with reference to the following drawings.

The image sensor may be located inside or outside the second camera actuator. In an embodiment, as shown in the drawings, the image sensor may be located outside the second camera actuator. For example, the image sensor may be located on a circuit board. The image sensor may receive light and convert the received light into an electrical signal. In addition, the image sensor may include a plurality of pixels in an array form. Further, the image sensor may be located on the optical axis.

The second plate unit 1270 may be in contact with the second case side. For example, the second plate unit 1270 may be positioned on an outer surface (first side surface) of the first side portion and an outer surface (second side surface) of the second side portion of the second case (specifically, the 2-2 case), and may be in contact with the first side surface and the second side surface.

Referring to fig. 11 and 12, in the camera apparatus according to the embodiment, the first lens assembly 1222a may be moved along a track on an inner surface of the housing by an electromagnetic force DEM1 generated between the fourth magnet 1252a and the fourth coil 1251a on the first ball B1 in a direction parallel to the optical axis, that is, in a third direction (Z-axis direction) or in a direction opposite to the third direction.

Specifically, in the camera device according to the embodiment, the fourth magnet 1252a may be provided in the first lens assembly 1222a, for example, by a bipolar magnetization method. For example, in an embodiment, both the N pole and the S pole of the fourth magnet 1252a may be disposed to face the fourth coil 1251a. Accordingly, each of the N pole and the S pole of the fourth magnet 1252a may be provided to correspond to a region in which current flows in the fourth magnet 1251a in the X-axis direction or in a direction opposite to the X-axis direction.

In an embodiment, when a magnetic force is applied from the N pole of the fourth magnet 1252a in a direction opposite to the second direction (Y-axis direction) and a current DE1 flows in the fourth coil 1251a corresponding to the N pole in a direction opposite to the first direction (X-axis direction), the electromagnetic force DEM1 may act in the third direction (Z-axis direction) according to an interaction of the electromagnetic force (for example, fleming's left hand rule).

Further, in the embodiment, when a magnetic force is applied in the second direction (Y-axis direction) from the S-pole of the fourth magnet 1252a and the current DE1 flows in the first direction (X-axis direction) in the fourth coil 1251a corresponding to the S-pole, the electromagnetic force DEM1 may act in the Z-axis direction according to the interaction of the electromagnetic forces.

At this time, since the fourth coil 1251a is in a state of being fixed to the second housing side, the first lens assembly 1222a on which the fourth magnet 1252a is disposed may be moved in a direction opposite to the Z-axis direction by the electromagnetic force DEM1 according to the current direction. In other words, the second driving magnet may move in the opposite direction of the electromagnetic force applied to the second driving coil. Furthermore, the direction of the electromagnetic force may be changed according to the current of the coil and the magnetic force of the magnet.

Accordingly, the first lens assembly 1222a may be moved along a track on the inner surface of the housing by the first ball B1 in a direction (two directions) perpendicular to the third direction or the optical axis direction. At this time, the electromagnetic force DEM1 may be controlled in proportion to the current DE1 applied to the fourth coil 1251 a.

The first lens assembly 1222a or the second lens assembly 1222B may include a first recess RS1 in which the first ball B1 is disposed. Further, the first lens assembly 1222a or the second lens assembly 1222B may include a second recess RS2 in which the second ball B2 is disposed. The length of the first concave portion RS1 may be preset in the optical axis direction (Z-axis direction). In addition, the length of the second recess RS2 may be preset in the optical axis direction (Z-axis direction). Therefore, the moving distance of the first ball B1 and the second ball B2 in the optical axis direction in each concave portion can be adjusted. In other words, the first recess RS1 or the second recess RS2 may be a stopper for the first ball B1 and the second ball B2.

Further, in the camera apparatus according to the embodiment, the fifth magnet 1252b may be provided on the second lens assembly 1222b by, for example, a dipole magnetization method or the like. For example, in this embodiment, both the N pole and the S pole of the fifth magnet 1252b may be disposed to face the fifth coil 1251b. Accordingly, each of the N pole and the S pole of the fifth magnet 1252b may be provided to correspond to a region in which current flows in the fifth coil 1251b in the X-axis direction or in a direction opposite to the X-axis direction.

In an embodiment, when the magnetic force DM2 is applied in the second direction (Y-axis direction) from the N pole of the fifth magnet 1252b and the current DE2 flows in the first direction (X-axis direction) in the fifth coil 1251b corresponding to the N pole, the electromagnetic force DEM2 may act in the third direction (Z-axis direction) according to the interaction of electromagnetic forces (for example, fleming's left hand rule).

Further, in the embodiment, when a magnetic force is applied from the S pole of the fifth magnet 1252b in a direction opposite to the second direction (Y-axis direction) and the current DE2 flows in the fifth coil 1251b corresponding to the S pole in a direction opposite to the first direction (X-axis direction), the electromagnetic force DEM2 may act in the Z-axis direction according to interaction of the electromagnetic force.

At this time, since the fifth coil 1251b is in a state of being fixed to the second housing side, the second lens assembly 1222b on which the fifth magnet 1252b is disposed may be moved in a direction opposite to the Z-axis direction by the electromagnetic force DEM2 according to the current direction. For example, as described above, the direction of the electromagnetic force may be changed according to the current of the coil and the magnetic force of the magnet. Accordingly, the second lens assembly 1222B may be moved along a track on the inner surface of the second housing by the second ball B2 in a direction parallel to the third direction (Z-axis direction). At this time, the electromagnetic force DEM2 may be controlled in proportion to the current DE2 applied to the fifth coil 1251 b.

Referring to fig. 13, in the camera apparatus according to the embodiment, the second driving unit may provide driving forces F3A, F3B, F a and F4B that move the first lens assembly 1222a and the second lens assembly 1222B of the lens unit 1220 in the third direction (Z-axis direction). As described above, the second driving unit may include the second driving coil 1251 and the second driving magnet 1252. Further, the lens unit 1220 may be moved in a third direction (Z-axis direction) by an electromagnetic force generated between the second driving coil 1251 and the second driving magnet 1252.

At this time, the fourth coil 1251a and the fifth coil 1251b may be disposed in holes formed in sides (e.g., the first side and the second side) of the second case 1230. Further, the fifth coil 1251b may be electrically connected to the first plate 1271. Fourth coil 1251a may be electrically connected to second plate 1272. Accordingly, the fourth coil 1251a and the fifth coil 1251b may receive a driving signal (e.g., a current) from a driving driver (driving driver) on the circuit board 1300 through the second board unit 1270.

At this time, the first lens assembly 1222a, on which the fourth magnet 1252a is disposed, may be moved in the third direction (Z-axis direction) by electromagnetic forces F3A and F3B between the fourth magnet 1251a and the fourth magnet 1252 a. In addition, the second lens group 1221b disposed on the first lens assembly 1222a may also be moved in the third direction.

Further, the second lens assembly 1222B on which the fifth magnet 1252B is disposed may be moved in the third direction (Z-axis direction) by electromagnetic forces F4A and F4B between the fifth coil 1251B and the fifth magnet 1252B. In addition, the third lens group 1221c disposed on the second lens assembly 1222b may also move in the third direction.

Therefore, as described above, the focal length or magnification of the optical system can be changed by moving the second lens group 1221b and the third lens group 1221 c. In an embodiment, the magnification may be changed by moving the second lens group 1221 b. In other words, scaling may be performed. Further, the focus can be adjusted by moving the third lens group 1221 c. In other words, autofocus may be performed. With this configuration, the second camera actuator may be a fixed zoom or a continuous zoom.

Fig. 14 is a schematic diagram showing a circuit board according to the present embodiment.

Referring to fig. 14, as described above, the circuit board 1300 according to the embodiment may include a first circuit board unit 1310 and a second circuit board unit 1320. The first circuit board unit 1310 may be located under the base and coupled to the base. In addition, the image sensor IS may be disposed on the first circuit board unit 1310. In addition, the first circuit board unit 1310 and the image sensor IS may be electrically connected.

In addition, the second circuit board unit 1320 may be located on a side of the base. In particular, the second circuit board unit 1320 may be located on the first side of the base. Accordingly, the second circuit board unit 1320 may be disposed adjacent to the fourth coil disposed adjacent to the first side portion so as to be electrically connected.

In addition, the circuit board 1300 may further include a fixing plate (not shown) on a side surface thereof. Therefore, even when the circuit board 1300 is made of a flexible material, the circuit board 1300 can be coupled to the base while maintaining rigidity by the fixing plate.

The second circuit board unit 1320 of the circuit board 1300 may be located on a side of the second driving unit 1250. The circuit board 1300 may be electrically connected to the first driving unit and the second driving unit. For example, the electrical connection may be made by SMT. However, the present invention is not limited to this method.

The circuit board 1300 may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid PCB, a flexible PCB, and a rigid flexible PCB. However, the present invention is not limited to these types.

In addition, the circuit board 1300 may be electrically connected to another camera module in the terminal or a processor of the terminal. Accordingly, the above-described camera actuator and camera device including the same can transmit and receive various signals within the terminal.

Fig. 15 is a perspective view showing a first lens assembly, a first adhesive member, a second adhesive member, and a second lens assembly according to an embodiment, fig. 16 is a view showing a second driving coil according to an embodiment, and fig. 17 is a view showing angles and thicknesses of turns of a bending pattern region in the second driving coil according to an embodiment.

Referring to fig. 15, the first lens assembly 1222a and the second lens assembly 1222b may be disposed to be spaced apart from each other in the optical axis direction (Z-axis direction). Further, the first lens assembly 1222a and the second lens assembly 1222b may be moved in the optical axis direction (Z-axis direction) by a second driving unit. For example, an auto-focus or zoom function may be performed by moving the first lens assembly 1222a and the second lens assembly 1222 b.

Further, the first lens assembly 1222a may include a first lens holder LAH1 for holding and coupling the second lens group 1221b. The first lens holder LAH1 may be coupled to the second lens group 1221b. Further, the first lens holder LAH1 may include a first lens hole LH1 for accommodating the second lens group 1221b. In other words, the second lens group 1221b including at least one lens may be disposed in the first lens hole LH1. The first guide unit G1 may be disposed to be spaced apart from one side of the first lens holder LAH1. For example, the first guide unit G1 and the first lens holder LAH1 may be sequentially disposed along the second direction (Y-axis direction).

Further, the second lens assembly 1222b may include a second lens holder LAH2 for holding and combining the third lens group 1221 c. Further, the second lens holder LAH2 may include a second lens hole LH2 for accommodating the third lens group 1221 c. In other words, at least one lens may be disposed in the second lens hole LH2.

The second guide unit G2 may be disposed at the other side of the second lens holder LAH2. The second guide unit G2 may be disposed to face the first guide unit G1.

In an embodiment, the first guide unit G1 and the second guide unit G2 may at least partially overlap each other in the second direction (Y-axis direction). With this configuration, the space efficiency of the second driving unit for moving the first lens assembly and the second lens assembly within the second camera actuator can be improved, thereby easily miniaturizing the second camera actuator.

Further, the second guide unit G2 and the second lens holder LAH2 may be sequentially disposed in a direction (Y-axis direction) opposite to the second direction.

The first ball, the fourth coil, etc. may be provided in the first guide unit G1 as described above, and the second ball, the fifth coil, etc. may be provided in the second guide unit G2 as described above.

In an embodiment, each of the first lens assembly 1222a and the second lens assembly 1222b may include outer surfaces adjacent to each other. The first lens assembly 1222a may include a first outer surface M1, and the second lens assembly 1222b may include a second outer surface M2. The first outer surface M1 may be a lower surface of the first lens holder LAH1 with respect to the optical axis direction (Z-axis direction). Further, a third outer surface M3 to be described below may be an upper surface of the first lens holder LAH 1. Further, the second outer surface M2 may be an upper surface of the second lens holder LAH2, and the fourth outer surface M4 may be a lower surface of the second lens holder LAH 2.

Further, the first outer surface M1 and the second outer surface M2 may at least partially overlap each other in the optical axis direction (Z-axis direction). In an embodiment, the first to fourth outer surfaces M1 to M4 may at least partially overlap each other in the optical axis direction (Z-axis direction).

For example, an adhesive member (not shown) may be in contact with at least one of the first and second outer surfaces M1 and M2.

Referring to fig. 16 and 17, the second driving coil includes a fourth coil 1251a and a fifth coil 1251b. The following description will be made based on the second driving coil including the fourth coil and the fifth coil.

The second driving coil 1251a or 1251b (to be described as "1251a" hereinafter) according to the embodiment may include a first pattern region PA1, a second pattern region PA2, third pattern regions PA3 and fourth pattern region PA4, and a curved pattern region CPA.

In addition, the second driving coil 1251a may be formed of at least one wire or turn. The following description will be made based on the second driving coil 1251a formed of a plurality of turns.

Further, the second driving coil 1251a may be formed in various ways. For example, the second driving coil 1251a may be formed of a Fine Pattern (FP) coil. However, the present invention is not limited to these types.

In the second driving coil 1251a, the first pattern region PA1 and the second pattern region PA2 may be disposed in directions perpendicular to each other. For example, the plurality of turns in the first pattern area PA1 may extend in the optical axis direction (Z-axis direction), and the plurality of turns in the second pattern area PA2 may extend in a first direction (X-axis direction) perpendicular to the optical axis direction (Z-axis direction). For example, the directions in which the plurality of turns in the first pattern area PA1 and the second pattern area PA2 extend are different, for example, may be perpendicular to each other.

Further, in an embodiment, the width L1 of the first pattern region PA1 may be different from the width L2 of the second pattern region PA2. Alternatively, the width L1 of the first pattern region PA1 may be different from the width L2 of the second pattern region PA2. With this configuration, the electromagnetic force generated by the interaction between the second driving coil 1251a and the second driving magnet facing the second driving coil 1251a can be increased. Therefore, the moving distance or moving speed of the first lens assembly or the second lens assembly in the optical axis direction (Z-axis direction) in the camera module according to the embodiment can be increased. Therefore, the camera module according to the embodiment can easily perform focusing or the like in a large magnification range due to a large stroke.

Further, the third pattern area PA3 may face the first pattern area PA1. The third pattern area PA3 and the first pattern area PA1 may be symmetrically disposed with respect to the optical axis direction (Z-axis direction). Alternatively, the third pattern region PA3 may be disposed to be spaced apart from and overlap with the first pattern region PA1 in the first direction (X-axis direction).

Further, the fourth pattern area PA4 may face the second pattern area PA2. The fourth pattern region PA4 and the second pattern region PA2 may be spaced apart from each other in the optical axis direction (Z-axis direction) and overlap each other. Further, the fourth pattern area PA4 and the second pattern area PA2 may be symmetrically disposed with respect to the first direction (X-axis direction).

Further, the third pattern region PA3 and the fourth pattern region PA4 may be disposed in directions perpendicular to each other. The plurality of turns in the third pattern area PA3 may extend in the optical axis direction (Z-axis direction), and the plurality of turns in the fourth pattern area PA4 may extend in a first direction (X-axis direction) perpendicular to the optical axis direction (Z-axis direction). Accordingly, directions in which the plurality of turns in the third pattern region PA3 and the fourth pattern region PA4 extend may be different, for example, may be perpendicular to each other.

On the other hand, the second driving coil 1251a according to the embodiment may include a first group of pattern regions GPA1 extending in the optical axis direction (Z-axis direction) and a second group of pattern regions GPA2 extending in a first direction (X-axis direction) or a perpendicular direction perpendicular to the optical axis direction (Z-axis direction). In addition, the curved pattern area CPA may be disposed between the first group of pattern areas GPA1 and the second group of pattern areas GPA2.

Further, the first group of pattern areas GPA1 may be disposed in a direction perpendicular to the second group of pattern areas GPA2. Accordingly, the plurality of turns in the first group of pattern regions GPA1 may extend in the optical axis direction (Z-axis direction), and the plurality of turns in the second group of pattern regions GPA2 may extend in the first direction perpendicular to the optical axis direction (Z-axis direction). Thus, the direction in which the plurality of turns in the first set of pattern areas GPA1 extend and the direction in which the plurality of turns in the second set of pattern areas GPA2 extend may be perpendicular to each other.

Further, the width or length L1 of the first group pattern region GPA1 in the first direction (X-axis direction) may be different from the length or width L2 of the second group pattern region PGa2 in the optical axis direction (Z-axis direction).

In an embodiment, the width or length L1 of the first group of pattern areas GPA1 in the first direction (X-axis direction) may be smaller than the length or width L2 of the second group of pattern areas PGa2 in the optical axis direction (Z-axis direction).

Further, the first group of pattern areas GPA1 may include a first pattern area PA1 and a third pattern area PA3. Further, the second group of pattern areas GPA2 may include a second pattern area PA2 and a fourth pattern area PA4. In the specification, it is also described by applying such a view angle.

Accordingly, the length or width L1 of any one of the first and third pattern areas PA1 and PA3 in the first direction may be greater than the length or width L2 of any one of the second and fourth pattern areas PA2 and PA4 in the optical axis direction.

With this configuration, it is possible to reduce the load due to the increase in the width of the plurality of turns in the second group pattern area GPA2 in which the driving force is actually generated in the second driving coil. Therefore, as described above, the electromagnetic force acting on the second driving coil 1251a can be increased. Therefore, the moving distance or moving speed of the first lens assembly or the second lens assembly in the optical axis direction (Z-axis direction) in the camera module according to the embodiment can be increased.

Further, in the second driving coil 1251a, the width L2 of the fourth pattern region PA4 may be greater than the width L1 of the third pattern region PA 3. Accordingly, the moving distance or stroke may be increased due to the increase of the electromagnetic force generated by the second driving coil 1251a in the same manner as described above.

Further, the curved pattern area CPA may include a first curved pattern area CPA1, a second curved pattern area CPA2, a third curved pattern area CPA3, and a fourth curved pattern area CPA4.

In the drawing, the first, second, third and fourth curved pattern areas CPA1, CPA2, CPA3 and CPA4 may be sequentially disposed clockwise. Also, the first to fourth pattern areas PA1 to PA4 may be sequentially disposed clockwise.

The first curved pattern area CPA1 may be connected to one end of the first pattern area PA1 and the other end of the second pattern area PA 2. Further, the first curved pattern area CPA1 may be disposed between one end of the first pattern area PA1 and the other end of the second pattern area PA 2. Hereinafter, an end in the clockwise direction will be described as one side, and an end in the counterclockwise direction will be described as the other end.

The second curved pattern area CPA2 may be connected to one end of the second pattern area PA2 and the other end of the third pattern area PA 3. Further, the second curved pattern area CPA2 may be disposed between one end of the second pattern area PA2 and the other end of the third pattern area PA 3.

The third curved pattern area CPA3 may be connected to one end of the third pattern area PA3 and the other end of the fourth pattern area PA 4. Further, the third curved pattern area CPA3 may be disposed between one end of the third pattern area PA3 and the other end of the fourth pattern area PA 4.

The fourth curved pattern area CPA4 may be connected to one end of the fourth pattern area PA4 and the other end of the first pattern area PA 1. Further, the fourth curved pattern area CPA4 may be disposed between one end of the fourth pattern area PA4 and the other end of the first pattern area PA 1.

In other words, the first pattern area PA1 may be disposed at one side of the second driving coil 1251a, and the second pattern area PA2 may be disposed to space the curved pattern area CPA from the first pattern area PA 1. Also, the third pattern area PA3 may be disposed at the other side, and the fourth pattern area PA4 may be disposed to space the curved pattern area CPA from the third pattern area PA 3.

Further, in the second driving coil 1251a according to the embodiment, the innermost turn MIT among the turns may have a first point P1, which is one end of the first group pattern region GPA1 (first pattern region or third pattern region).

Further, in the second driving coil 1251a according to the embodiment, the outermost turn MOT among the plurality of turns may have a second point P2, which is one end of the first group pattern area GPA1 (first pattern area or third pattern area).

The virtual line VL1 connecting the first point P1 to the second point P2 may be inclined at a first angle θa with respect to the optical axis or the optical axis direction (Z-axis direction). Further, the first angle θa may be in a range of 20 degrees to 45 degrees.

Accordingly, in the second driving coil 1251a according to the embodiment, the innermost turn MIT among the turns may have a third point P3, which is the other end of the first group pattern region GPA1 (first pattern region or third pattern region).

Further, in the second driving coil 1251a according to the embodiment, the outermost turn MOT among the plurality of turns may have a fourth point P4, the fourth point P4 being the other end of the first group pattern area GPA1 (first pattern area or third pattern area).

The virtual line VL2 connecting the third point P3 to the fourth point P4 may be inclined at a second angle θb with respect to the optical axis or the optical axis direction (Z-axis direction). The second angle θb may be in a range of 20 degrees to 45 degrees like the first angle.

Further, from another view angle, an angle (corresponding to the first angle) between the first boundary line (corresponding to VL 1) and the second boundary line (corresponding to the optical axis or located inside the first boundary line) may be in a range of 20 degrees to 45 degrees.

For example, the first boundary line VL1 may be a line between the first curved pattern area CPA1 and the first pattern area PA1 in contact with each other, or a line between the third curved pattern area CP3 and the third pattern area PA3 in contact with each other.

Further, the second boundary line may be a line between the first and second curved pattern areas CP1 and PA2 contacting each other, or a line between the third and fourth curved pattern areas CP3 and PA4 contacting each other.

Accordingly, the angle (corresponding to the second angle) between the third boundary line (corresponding to VL 2) and the fourth boundary line (corresponding to the optical axis) may be in the range of 20 degrees to 40 degrees.

For example, the third boundary line (corresponding to VL 2) may be a line between the second curved pattern area CPa2 and the third pattern area PA3 in contact with each other, or a line between the fourth curved pattern area CPa4 and the first pattern area PA1 in contact with each other.

Further, the fourth boundary line may be a line between the second curved pattern area CP2 and the second pattern area PA2 in contact with each other, or a line between the fourth curved pattern area CP4 and the fourth pattern area PA4 in contact with each other.

Further, the second driving coil 1251a according to the embodiment is formed with a plurality of turns as described above, or is wound with a unit coil pattern.

Further, the width between the unit coil patterns in the second pattern region PA2 may be greater than the width between the unit coil patterns in the first pattern region PA 1. Alternatively, the width W1 between turns or unit coil patterns in the first group of pattern areas GPA1 may be smaller than the width W2 between turns or unit coil patterns in the second group of pattern areas GPA 2. Accordingly, the width between turns or unit coil patterns in the third pattern area PA3 may be smaller than the width between turns or unit coil patterns in the fourth group of pattern areas GPA 2. In the specification, the width in the first group of pattern areas GPA1 is the length in the first direction, and the width in the second group of pattern areas GPA2 is the length in the optical axis direction.

Further, the width or distance gap1 between adjacent turns or unit coil patterns in the first set of pattern regions GPA1 may be different or the same as the width or distance gap2 between adjacent turns or unit coil patterns in the second set of pattern regions GPA 2. For example, the width or distance gap1 between adjacent turns or unit coil patterns in the first set of pattern regions GPA1 may be the same as the width or distance gap2 between adjacent turns or unit coil patterns in the second set of pattern regions GPA 2.

For example, the width W1 between the unit coil patterns in the first pattern region PA1 or the third pattern region PA3 may be smaller than the width W2 between the unit coil patterns in the second pattern region PA2 or the fourth pattern region PA 4.

Further, the width of each of the pattern areas PA1 to PA4 may be a distance from an innermost turn or pattern MIT to an outermost turn or pattern MOT among the turns in the second driving coil 1251 a. Accordingly, the width L1 of the first pattern region PA1 or the third pattern region PA3 may be smaller than the width L2 of the second pattern region PA2 or the fourth pattern region PA 4.

In contrast, the length of the first pattern region PA1 or the third pattern region PA3 in the optical axis direction (Z-axis direction) may be greater than the length of the second pattern region PA2 or the fourth pattern region PA4 in the optical axis direction (Z-axis direction). Thus, a larger stroke of the first lens assembly or the second lens assembly may be set by the second driving unit.

Further, the distance gap1 between adjacent unit coil patterns in the first pattern region PA1 or the third pattern region PA3 may be the same as or different from the distance gap2 between unit coil patterns in the second pattern region PA2 or the fourth pattern region PA 4.

Further, the width of the bending pattern region CPA in the second driving coil 1251a according to the embodiment may vary according to the position. For example, the width of the curved pattern region CPA may decrease as the width approaches the first pattern region PA1 or the third pattern region PA 3.

The width of the curved pattern area CPA may be the distance between the facing outer surfaces. The curved pattern area CPA may be changed in one direction. Further, the width W3 of the curved pattern area CPA may decrease as the width approaches the first group of pattern areas GPA 1. Further, the width W3 of the curved pattern area CPA may increase toward the second group of pattern areas GPA 2. For example, the width Wk between turns or unit patterns on one end of the first curved pattern area CPA1 may be greater than the width W1 between turns or unit patterns on the other end of the first curved pattern area CPA 1.

Further, the width between the first boundary line (or the virtual line VL1 or VL 2) and the second boundary line (or the virtual line VL1 'or VL 2') may be greater than the width L1 of the first pattern area PA1 and less than the width L2 of the second pattern area PA 2.

Alternatively, the width in the curved pattern region CPA may be larger than the width L1 in the first group of pattern regions GPA1 and smaller than the width L2 in the second group of pattern regions GPA 2.

Accordingly, the width between the first boundary line (or the virtual line VL1 or VL 2) and the second boundary line (or the virtual line VL1 'or VL 2') may be greater than the width L1 of the third pattern area PA3 and less than the width L2 of the fourth pattern area PA 4.

Further, the width of the curved pattern area CPA may increase from the first boundary line (or the virtual line VL1 or VL 2) to the second boundary line (or the virtual line VL1 'or VL 2'). Further, as described above, the width between turns or unit patterns in the curved pattern region CPA may increase from the first boundary line (or the virtual line VL1 or VL 2) to the second boundary line (or the virtual line VL1 'or VL 2'). Alternatively, the width between turns or unit patterns in the curved pattern region CPA may widen or increase from the first boundary line (or the virtual line VL1 or VL 2) to the second boundary line (or the virtual line VL1 'or VL 2').

Further, the width of the pattern region on the first boundary line (or the virtual line VL1 or VL 2) may be different from the width of the pattern region on the second boundary line (or the virtual line VL1 'or VL 2'). For example, the width of the pattern region on the first boundary line (or the virtual line VL1 or VL 2) may be smaller than the width of the pattern region on the second boundary line (or the virtual line VL1 'or VL 2').

Further, in an embodiment, the ratio of the width L1 of the first pattern region PA1 to the width L2 of the second pattern region PA2 may be in the range of 1:1.5 to 1:4.5. When the ratio is greater than 1:1.5, it is difficult to generate a driving force of a larger stroke, and when the ratio is less than 1:4.5, the length of the second driving coil increases, so there is a limit in that it is difficult to control forward/backward movement. In addition, from another perspective, the ratio of the width of the first set of pattern areas GPA1 to the width of the second set of pattern areas GPA2 may also be in the range of 1:1.5 to 1:4.5.

Further, the width of the first set of pattern areas GPA1 may be the (maximum) length in the first direction between the innermost turns (or unit pattern) and the outermost turns (or unit pattern) of the plurality of turns in the first set of pattern areas. Further, the width of the second group pattern region GPA2 may be a (maximum) length in the optical axis direction (Z axis direction) between an innermost turn (or unit pattern) and an outermost turn (or unit pattern) among the plurality of turns in the second group pattern region.

Further, in the second driving coil 1251a according to the embodiment, the ratio of the first width L3 to the second width L4 may be in the range of 1:1.5 to 1:4. Here, the first width L3 may be the maximum length in the first direction (X-axis direction) between outermost turns among the plurality of turns in the first group of pattern regions GPA 1. Alternatively, the first width L3 may be a distance in the first direction (X-axis direction) between an outermost turn of the plurality of turns (unit pattern) in the first pattern region PA1 and an outermost turn of the plurality of turns in the third pattern region PA 3. Further, the second width L4 may be the maximum length in the optical axis direction (Z-axis direction) between the outermost turns (unit patterns) among the turns in the second group pattern region GPA 2. Alternatively, the second width L4 may be a distance in the optical axis direction (Z-axis direction) between an outermost turn of the plurality of turns (unit patterns) in the second pattern region PA2 and an outermost turn of the plurality of turns in the fourth pattern region PA 4. Further, when the ratio is more than 1:1.5, the efficiency of generating the driving force is lowered, and when the ratio is less than 1:4, there is a limit in that compactness is difficult, and it is difficult to sufficiently generate the electromagnetic force for the stroke.

Further, in the second driving coil 1251a according to the embodiment, the ratio of the third width L5 to the fourth width 6 may be in the range of 1:1.5 to 1:2.5. The third width L5 may be the shortest distance in the first direction (X-axis direction) between innermost turns among the plurality of turns (unit patterns) in the first group of pattern areas GPA 1. Alternatively, the third width L5 may be the shortest distance in the first direction (X-axis direction) between the innermost turn of the plurality of turns (unit pattern) in the first pattern area PA1 and the innermost turn of the plurality of turns in the third pattern area PA 3. Further, the fourth width L6 may be the shortest distance in the optical axis direction (Z-axis direction) between innermost turns among the plurality of turns (unit patterns) in the second group pattern region GPA 2. Alternatively, the fourth width L6 may be the shortest distance in the optical axis direction (Z-axis direction) between the innermost turn of the plurality of turns (unit patterns) in the second pattern area PA2 and the innermost turn of the plurality of turns (unit patterns) in the fourth pattern area PA 4. In the specification, "inside" means a direction toward the center of the second driving coil. Further, "outside" means a direction opposite to a direction toward the center of the second driving coil. For example, the inner side may represent a direction from a region where a single winding turn has the shortest length to a region where a single winding turn has the greatest length.

Further, as will be described below, the moving distance of the driving magnet may be equal to or smaller than the width L2 of the second group pattern region GPA 2. For example, the moving distance of the driving magnet may be greater than or equal to the width L2 of the second pattern area PA2 or the fourth pattern area PA 4. With this configuration, the counter electromotive force generated by the second driving coil 1251a can be suppressed while the second driving magnet moves in the optical axis direction (Z-axis direction). In other words, the driving efficiency can be improved.

Fig. 18 is a top view showing the second driving unit and the first plate according to the embodiment, fig. 19 is a side view showing the second driving unit according to the embodiment, fig. 20 is a diagram for describing movement of the second driving magnet based on the second driving unit according to the embodiment, fig. 21 is a diagram showing electromagnetic force according to the position of the second driving magnet, and fig. 22 is a diagram showing output of the hall sensor according to the movement distance.

Referring to fig. 18 to 20, as described above, the second driving magnet 1252a, the second driving coil 1251a, and the first plate 1271 according to the embodiment may be sequentially disposed in the second direction (Y-axis direction).

Further, the second driving magnet 1252a may be coupled to a yoke YK provided at the first lens assembly or the second lens assembly side (inner side). Further, the yoke YK may be coupled to a side surface of the first lens assembly or the second lens assembly by an adhesive member. The adhesive member may be made of various materials having adhesive strength, for example, made of epoxy resin. Further, the yoke YK can prevent leakage of magnetic flux generated from the coupled second driving magnet 1252 a. Accordingly, the yoke YK may be located on a surface of the second driving magnet 1252a not facing the second driving coil 1251 (or on a surface opposite to the surface facing the second driving coil 1251). Alternatively, the yoke YK may be located on the entire surface of the second driving magnet 1252a except the surface facing the second driving coil 1251. For example, the yoke YK may contact or be located on a surface (a side surface and a surface opposite to the facing surface) of the second driving magnet 1252a other than the surface facing the second driving coil 1251.

The second driving magnet 1252a may be divided into a plurality of regions in the third direction (Z-axis direction). In an embodiment, the second driving magnet 1252a may include a first magnet region MA1, a neutral region NA, and a second magnet region MA2 disposed along a third direction (Z-axis direction).

The first magnet area MA1 and the second magnet area MA2 may be disposed to be spaced apart from each other in the optical axis direction (Z-axis direction). Further, the neutral area NA may be disposed between the first magnet area MA1 and the second magnet area MA2. Further, the neutral region NA may be referred to as various expressions such as "neutral region", "neutral portion", "split portion" and "split region".

Further, the first magnet region MA1 may have a first polarity. Further, the second magnet region MA2 may have a second polarity. In this case, the first polarity and the second polarity may be opposite polarities. For example, the first polarity may be any one of an N-pole and an S-pole, and the second polarity may be the other one of the N-pole and the S-pole. In this case, the polarity is the polarity of the surface facing the adjacent coil. For example, the first magnet region MA1 and the second magnet region MA2 of the fourth magnet may have a first polarity and a second polarity, respectively, on the surface facing the fourth coil.

Furthermore, the first magnet area MA1 and the second magnet area MA2 of the second driving magnet may have different polarity structures according to the magnetizing method. The first magnet region MA1 may have any one of an N pole and an S pole on a surface facing the adjacent second driving coil, and the other one of the N pole and the S pole on a surface facing the first lens assembly or the second lens assembly. Also, the second magnet region MA2 may have either one of an N pole and an S pole on a surface facing the adjacent second driving coil, and the other one of the N pole and the S pole on a surface facing the first lens assembly or the second lens assembly. For example, an S pole may be formed inside the first magnet area MA1 and an N pole may be formed outside the first magnet area MA 1. Further, the N pole may be formed inside the second magnet area MA2, and the S pole may be formed outside the second magnet area MA 2. With this configuration, as described above, a force (for example, electromagnetic force F) can be applied to the second driving coil 1251a in a direction opposite to the optical axis direction. However, since the second driving coil 1251a is a fixed member, a force F' may be applied to the second driving magnet 1252a in the optical axis direction (Z-axis direction). Accordingly, the second driving magnet 1252a and the first lens assembly or the second lens assembly coupled to the second driving magnet 1252a may move in the optical axis direction (Z-axis direction). Hereinafter, "F" indicates the direction of electromagnetic force applied to the second driving coil. In addition, "F'" indicates a direction in which the second driving magnet is moved by the electromagnetic force. However, this is an example, and as described above, the direction of the current may vary depending on the direction of the magnetic force.

Further, in the case of bipolar magnetization, the length of the neutral region NA in the optical axis direction may be in the range of 5% to 40% of the total length of the second driving magnet 1252a in the optical axis direction.

Further, in the case of unipolar magnetization, in the second magnet formed of two magnets spaced apart in the optical axis direction, the distance between the two magnets may be maintained by various assembly or joining structures. Also, the distance between the two magnets may be in the range of 5% to 40% of the total length of the second driving magnet in the optical axis direction.

Therefore, the length of the neutral area NA in the optical axis direction may be the same as or different from the length of the first magnet area MA1 or the second magnet area MA2 in the optical axis direction.

The length of the first magnet area MA1 in the optical axis direction may be the same as the length of the second magnet area MA2 in the optical axis direction.

Further, in the embodiment, even when the second driving magnet 1252a moves in the optical axis direction (Z-axis direction), at least a portion of the second driving magnet 1252a may overlap with the second driving coil 1251a in the second direction (Y-axis direction). With this configuration, the second driving magnet 1252a can move in the optical axis direction (Z-axis direction). Further, when the second driving magnet 1252a moves, an interaction between the second driving magnet 1252a and the second driving coil 1251a can be easily formed.

Further, in an embodiment, the length Lb of the second driving magnet 1252a in the optical axis direction (Z-axis direction) may be larger than the length L4 in the optical axis direction between outermost turns (unit patterns) among the plurality of turns in the second group pattern region GPA2. Alternatively, the length Lb of the second driving magnet 1252a in the optical axis direction (Z-axis direction) may be larger than the distance/length L4 in the optical axis direction (Z-axis direction) between the outermost turn of the plurality of turns (unit patterns) in the second pattern region PA2 and the outermost turn of the plurality of turns in the fourth pattern region PA 4. With this configuration, magnetic force can be applied to the entire second group of pattern areas (or the second pattern area and the fourth pattern area) in the second driving coil 1251a having a significant influence on the generation of electromagnetic force. Further, a uniform magnetic force may be applied to the second group of pattern areas (or the second pattern area and the fourth pattern area).

Further, in an embodiment, the length La of the second driving magnet 1252a in the first direction (X-axis direction) may be smaller than the length L3 in the first direction (X-axis direction) between outermost turns (unit patterns) among the plurality of turns in the first group pattern region GPA 1. Alternatively, the length La of the second driving magnet 1252a in the first direction (X-axis direction) may be smaller than the distance/length L3 in the first direction (X-axis direction) between the outermost turn of the plurality of turns (unit pattern) in the first pattern region PA1 and the outermost turn of the plurality of turns in the third pattern region PA 3. When the second driving magnet 1252a is positioned in the middle, at least a portion of the second driving magnet 1252a may overlap with the second driving coil 1251a in the second direction (Y-axis direction). With this configuration, magnetic force can be applied to the entirety of the second group of pattern areas (or the second pattern area and the fourth pattern area) in the second driving coil 1251a having a significant influence on the generation of electromagnetic force. Further, even when the second driving magnet 1252a moves in the optical axis direction (Z-axis direction), the magnetic force can be uniformly applied to the second group pattern region GPA2 of the second driving coil 1251 a. Accordingly, electromagnetic force can be uniformly generated by the second driving coil 1251a and the second driving magnet 1252 a.

Further, the lengths (corresponding to La) of the first and second magnet regions MA1 and MA2 in the first direction (X-axis direction) may be smaller than the maximum length of the second pattern region PA2 in the first direction (X-axis direction). Thus, the second group of pattern areas having a significant influence on the generation of electromagnetic force as a whole can receive magnetic force from the first magnet area and the second magnet area of the first driving magnet. Further, as described above, the driving force (e.g., electromagnetic force) may be increased by a difference between the width of the first pattern region (or the third pattern region) and the width of the second pattern region (or the fourth pattern region). Further, the moving distance (stroke) of the second driving magnet may be increased.

Further referring to fig. 21, the comparative example is a case where the width of the first pattern region (or the third pattern region) and the width of the second pattern region (or the fourth pattern region) are the same, and the embodiment is a case where the width of the first pattern region (or the third pattern region) is smaller than the width of the second pattern region (or the fourth pattern region). Therefore, the camera actuator according to the embodiment can have a smaller thickness and provide a larger maximum electromagnetic force when compared to the comparative example, because it has a small driving magnet in the first direction. Further, the camera actuator according to the embodiment can provide a greater moving distance or stroke than the comparative example.

Further, in an embodiment, the camera actuator may further include a second hall sensor unit located in an innermost turn of the plurality of turns (unit patterns) of the second driving coil.

As described above, the second hall sensor unit may include the fourth hall sensor 1253a. The second hall sensor unit may overlap the second driving coil 1251a in the first direction (X-axis direction). Further, the second hall sensor unit may overlap the second driving coil 1251a in the third direction (Z-axis direction). Further, the second hall sensor unit may overlap the second driving magnet 1252a in the second direction (Y-axis direction).

Further, a plurality of fourth hall sensors 1253a may be formed. For example, the fourth Hall sensor 1253a may comprise a 4-1 Hall sensor 1253aa, a 4-2 Hall sensor 1253ab, and a 4-3 Hall sensor 1253bb. The 4-2 hall sensor 1253ab, the 4-1 hall sensor 1253aa, and the 4-3 hall sensor 1253bb may be sequentially arranged in the third direction (Z-axis direction). For example, a 4-1 Hall sensor 1253aa may be provided between a 4-2 Hall sensor 1253ab and a 4-3 Hall sensor 1253bb. With this configuration, as described above, even when the moving distance or stroke of the first lens assembly or the second lens assembly increases, a long moving distance or stroke portion can be easily covered by the plurality of fourth hall sensors 1253a. In other words, even if the moving distance increases, accurate position detection can be performed.

Further, the 4-1 hall sensor 1253aa may overlap with the neutral region NA in the second direction (Y-axis direction) based on the case where the second driving magnet is located at the center. Further, the 4-2 hall sensor 1253ab may overlap the first magnet region MA1 in the second direction (Y-axis direction). Further, the 4-3 hall sensor 1253bb may overlap the second magnet region MA2 in the second direction (Y-axis direction).

With further reference to FIG. 22, the 4-1 Hall sensor 1253aa corresponds to "hall2". The 4-2 hall sensor 1253ab corresponds to "hall1". The 4-3 hall sensor 1253bb corresponds to "hall3". As described above, since the 4-2 hall sensor 1253ab, the 4-1 hall sensor 1253aa, and the 4-3 hall sensor 1253bb are sequentially disposed in the third direction (Z-axis direction), the output of the entire hall sensor including the 4-2 hall sensor 1253ab, the 4-1 hall sensor 1253aa, and the 4-3 hall sensor 1253bb can be formed linearly or nearly linearly according to the moving distance. Further, the camera actuator or camera device according to the embodiment performs position detection by adding the outputs of the 4-2 hall sensor 1253ab, the 4-1 hall sensor 1253aa, and the 4-3 hall sensor 1253 bb. With this configuration, the camera actuator according to the embodiment can more accurately measure the movement or position of the first lens assembly or the second lens assembly in the optical axis direction.

Further, in the camera actuator according to the embodiment, the second driving magnet 1252a may be moved from "middle" to "maximum movement 1" or "maximum movement 2". Here, in the case of "middle", the center of the first magnet region (or the second magnet region) of the second driving magnet 1252a may be disposed parallel to the center of the fourth pattern region (or the second pattern region) in the first direction (X-axis direction). Alternatively, the center of the first magnet area MA1 may be located at the center of the fourth pattern area. In this case, the first magnet region MA1 and the fourth pattern region may at least partially Overlap (OA) in the first direction (X-axis direction). Further, the second magnet region MA2 and the second pattern region may at least partially overlap (OA 0) in the first direction (X-axis direction).

Further, the case of "maximum movement 1" may correspond to the case where the second driving magnet 1252a is maximally moved in a direction opposite to the third direction (Z-axis direction). In this case, the first magnet region MA1 of the second driving magnet 1252a may at least partially overlap with the fourth pattern region (OA 1). Further, at least a portion of the second magnet area MA2 may overlap with the second pattern area (OA 2).

In this case, the area OA where the second magnet area MA2 and the second pattern area overlap each other in the first direction (X-axis direction) in the case of "center" may be larger than the area OA1 where the first magnet area MA1 and the fourth pattern area overlap each other in the first direction (X-axis direction) in the case of "maximum movement 1". This can be applied in the same manner to OA0 and OA2.

Further, the case of "maximum movement 2" may correspond to the case where the second driving magnet 1252a is maximally moved in the third direction (Z-axis direction). In this case, the first magnet region MA1 of the second driving magnet 1252a may at least partially overlap with the fourth pattern region (OA 3). Further, at least a portion of the second magnet area MA2 may overlap with the second pattern area (OA 4).

In this case, the area OA where the second magnet area MA2 and the second pattern area overlap each other in the first direction (X-axis direction) in the case of "middle" may be larger than the area OA3 where the first magnet area MA1 and the fourth pattern area overlap each other in the first direction (X-axis direction) in the case of "maximum movement 2". This can be applied in the same manner to OA0 and OA4.

Further, the maximum moving distance of the second driving magnet 1252a may correspond to the lengths of the first groove and the second groove in the optical axis direction, which accommodate the first ball or the second ball in the first lens assembly described above. Further, the maximum movement distance of the second driving magnet 1252a may correspond to the distance that the first magnet region MA1 moves from the maximum movement 1 to the maximum movement 2 in the optical axis direction (Z axis direction). Alternatively, the maximum moving distance of the second driving magnet 1252a may correspond to a distance between stoppers for restricting the movement of the first ball or the second ball in the optical axis direction. Alternatively, the maximum moving distance of the second driving magnet 1252a may be the maximum distance that the bobbin can move, and may correspond to a separation distance in the optical axis direction between the stopper located in the optical axis direction and the stopper located in the opposite direction to the optical axis direction with respect to the bobbin. Further, the maximum moving distance of the second driving magnet 1252a may correspond to twice the distance from the center to the maximum movement 1. Further, the moving distance of the second driving magnet 1252a according to the embodiment may be in the range of-6 mm to +6mm based on the center. Specifically, the moving distance of the second driving magnet 1252a may be in the range of-5 mm to +5mm based on the center. More specifically, the moving distance of the second driving magnet 1252a may be in the range of-4 mm to +4mm based on the center. Here, the moving distance from the center in the optical axis direction is referred to as "+", and the direction opposite to the optical axis direction is referred to as "-". Therefore, the second driving magnet 1252a (or at least one of the first lens assembly and the second lens assembly) according to the embodiment may move in the optical axis direction in the range of 0mm to 12 mm. Further, the above maximum moving distance may correspond to a maximum stroke of the lens assembly in the camera module.

Further, the maximum movement distance MD of the second driving magnet 1252a may be greater than the length of the first pattern region in the first direction (X-axis direction).

Further, the maximum movement distance MD of the second driving magnet 1252a may be 0.5 times (1/2 times) greater than the length L1 of the first pattern region in the first direction (X-axis direction).

Further, the ratio of the maximum movement distance MD of the second driving magnet 1252a to the length L1 of the first pattern region in the first direction (X-axis direction) may be in the range of 1:0.1 to 1:0.7. With this configuration, the resistance can be appropriately adjusted by adjusting the width of the first pattern region while the thickness in the first direction (X-axis direction) is reduced by the second driving coil. In other words, the width of the first pattern region according to the embodiment may be variously adjusted by applying the above description.

Further, 0.5 times (1/2 times) the maximum movement distance MD of the second driving magnet 1252a may be less than or equal to the length L2 of the second pattern region in the optical axis direction (Z axis direction).

Further, the ratio of the maximum movement distance MD of the second driving magnet 1252a to the length L2 of the second pattern region in the optical axis direction (Z-axis direction) may be in the range of 1:0.5 to 1:1.5. With this configuration, it is possible to minimize generation of the back electromagnetic force while reducing the weight of the second driving unit (the weight of the second driving magnet 1252 a).

Further, twice the length L2 of the second pattern region (or the fourth pattern region) in the optical axis direction may be greater than the maximum movement distance MD of the second driving magnet 1252 a.

Further, the width of the first pattern region (or the third pattern region) may be less than or equal to the maximum movement distance MD of the second driving magnet 1252 a.

Further, the structure in which the width of the above-described pattern in the second driving coil 1251 is modified may be applied only to any one of the lens assemblies that perform AF and zooming.

The structure in which the width of the above-described pattern in the second driving coil 1251 is modified may be applied only to a lens assembly that performs AF. For example, when the first lens assembly performs AF and the second lens assembly performs zooming, the structure of the second driving coil according to the embodiment may be applied only to the fourth coil for providing driving force to the first lens assembly.

Further, in another modification, the structure in which the width of the above-described pattern in the second driving coil 1251 is modified may be applied only to a lens assembly that performs zooming. For example, when the first lens assembly performs AF and the second lens assembly performs zooming, the structure of the second driving coil according to the embodiment may be applied only to the fifth coil for providing driving force to the second lens assembly.

Further, the structure in which the width of the above-described pattern in the second driving coil 1251 is modified may be applied to a lens assembly that performs AF and zooming. For example, when the first lens assembly performs AF and the second lens assembly performs zooming, the structure of the second driving coil according to the embodiment may be applied only to the fourth coil and the fifth coil for providing driving force to the first lens assembly and the second lens assembly.

Further, the above-described camera device may be manufactured by assembling the first camera actuator or the second camera actuator and then bonding the first camera actuator to the second camera actuator.

Fig. 23 is a diagram showing a second driving coil according to another embodiment, fig. 24 is a diagram showing a second driving coil according to yet another embodiment, fig. 25 is a side view showing a second driving unit according to another modification, and fig. 26 is a side view showing a second driving unit according to yet another modification.

Referring to fig. 23, a second driving coil 1251a according to another embodiment includes a fourth coil 1251a and a fifth coil 1251b as described above. The following description will be made based on the second driving coil including the fourth coil and the fifth coil.

The second driving coil 1251a or 1251b (to be described as "1251a" hereinafter) according to another embodiment may include the first pattern region PA1, the second pattern region PA2, the third pattern region PA3, the fourth pattern region PA4, and the curved pattern region CPA as described above.

Further, the second driving coil 1251a may be formed in various types. For example, the second driving coil 1251a may be formed of an FP coil. However, the present invention is not limited to these types.

Further, the above-described matters except for the following description may be applied to the description of the second driving coil in the same manner.

The second driving coil 1251a according to another embodiment may have a turn (unit pattern) of variable length in the optical axis direction (Z-axis direction) in the second group pattern region GPA 2. For example, the length of the turns (unit patterns) in the optical axis direction (Z-axis direction) in the second pattern region PA2 or the fourth pattern region PA4 may increase or decrease as the width approaches the center of the second driving coil 1251 a.

The length Ln in the optical axis direction (Z-axis direction) of the innermost turn in the plurality of turns (unit patterns) in the second pattern area PA2 or the fourth pattern area PA4 may be different from the length Lm in the optical axis direction (Z-axis direction) of the outermost turn in the plurality of turns (unit patterns) in the second pattern area PA2 or the fourth pattern area PA 4. For example, the length Ln of the innermost turn in the plurality of turns (unit patterns) in the second pattern area PA2 or the fourth pattern area PA4 in the optical axis direction (Z-axis direction) may be greater than or less than the length Lm of the outermost turn in the plurality of turns (unit patterns) in the second pattern area PA2 or the fourth pattern area PA4 in the optical axis direction (Z-axis direction). With this configuration, even when the second driving magnet moves to the maximum movement 1 or the maximum movement 2, the phenomenon of electromagnetic force reduction can be reduced. Accordingly, the electromagnetic force generated by the second driving coil can be uniformly generated according to the distance of the second driving magnet. Therefore, the control of the movement of the first lens assembly or the second lens assembly can be accurately performed.

Referring to fig. 24, a second driving coil 1251a according to still another embodiment includes a fourth coil 1251a and a fifth coil 1251b as described above. The following description will be made based on the second driving coil including the fourth coil and the fifth coil.

The second driving coil 1251a or 1251b (to be described as "1251a" hereinafter) according to still another embodiment may include the first pattern region PA1, the second pattern region PA2, the third pattern region PA3, the fourth pattern region PA4, and the curved pattern region CPA as described above.

In the second driving coil 1251a according to still another embodiment, lengths Lo and Lp of turns (unit patterns) in the second group pattern region GPA2 in the optical axis direction (Z-axis direction) may be different. For example, lengths Lo and Lp of turns (unit patterns) in the optical axis direction (Z-axis direction) in the second pattern region PA2 or the fourth pattern region PA4 may be different.

Further, the width Ls of the second pattern region PA2 and the width Lr of the fourth pattern region PA4 may be different. With this configuration, when the distance from the initial position (e.g., center) of the first lens assembly or the second lens assembly to the maximum movement position is different along the optical axis, the electromagnetic force generated by the second driving coil 1251a may be differently generated according to the movement position of the first lens assembly or the second lens assembly.

Referring to fig. 25 and 26, the second driving unit according to another modification may include the second driving coil 1251a, the second driving magnet 1252a, and the like as described above. Further, the second driving coil 1251a includes the fourth coil 1251a and the fifth coil 1251b as described above. The following description will be made based on the second driving coil including the fourth coil and the fifth coil. The second driving coil 1251a or 1251b (to be described as "1251a" hereinafter) according to another modification may include the first pattern region PA1, the second pattern region PA2, the third pattern region PA3, the fourth pattern region PA4, and the curved pattern region CPA as described above. In addition, the second driving coil 1251a may be formed of at least one wire or turn. The following description will be made based on the second driving coil 1251a formed of a plurality of turns. The above in the second driving unit other than the following description can be applied in the same manner.

In the second driving unit according to another modification, the third width L5' of the second driving coil 1251a may be larger than the length La of the second driving magnet 1252a in the first direction (X-axis direction). Here, the third width L5' may be the shortest distance in the first direction (X-axis direction) between innermost turns among the plurality of turns (unit patterns) in the first group of pattern areas GPA 1. Alternatively, the third width L5' may be the shortest distance in the first direction (X-axis direction) between the innermost turn of the plurality of turns (unit pattern) in the first pattern region PA1 and the innermost turn of the plurality of turns in the third pattern region PA 3.

In the second driving unit according to still another modification shown in fig. 26, the third width L5″ of the second driving coil 1251a may be smaller than the length La of the second driving magnet 1252a in the first direction (X-axis direction). Here, the third width L5″ may be the shortest distance in the first direction (X-axis direction) between innermost turns among the plurality of turns (unit patterns) in the first group pattern region GPA 1. Alternatively, the third width L5″ may be the shortest distance in the first direction (X-axis direction) between the innermost turn of the plurality of turns (unit pattern) in the first pattern region PA1 and the innermost turn of the plurality of turns in the third pattern region PA 3.

Fig. 27 is a perspective view illustrating a mobile terminal to which a camera module according to an embodiment is applied.

Referring to fig. 27, a mobile terminal 1500 according to an embodiment may include a camera device 1000, a flash module 1530, and an AF device 1510 disposed on a rear surface thereof.

The camera apparatus 1000 may include an image photographing function and an AF function. For example, the camera apparatus 1000 may include an AF function using an image.

The camera apparatus 1000 processes image frames of still images or moving images obtained by the image sensor in a photographing mode or a video call mode.

The processed image frames may be displayed on a predetermined display and stored in memory. A camera (not shown) may also be provided on the front surface of the main body of the mobile terminal.

For example, the camera apparatus 1000 may include a first camera apparatus 1000 and a second camera apparatus 1000, and the first camera module 1000 may implement an OIS function and an AF or zoom function. In addition, the second camera apparatus 1000 may implement AF, zoom, and OIS functions. In this case, since the first camera apparatus 1000 includes the first camera actuator and the second camera actuator described above, the camera apparatus can be easily miniaturized by changing the optical path.

The flash module 1530 may include a light emitting device therein for emitting light. The flash module 1530 may be operated by a camera operation of the mobile terminal or a control of the user.

The AF device 1510 may include one of packages of a surface-emitting laser device as the light emitting unit o

The AF device 1510 may include an AF function using a laser. The AF device 1510 may be mainly used in the case where an AF function of an image using the camera device 1000 is deteriorated, for example, in an environment of approximately 10 meters or less or darkness.

The AF apparatus 1510 may include a light emitting unit including a Vertical Cavity Surface Emitting Laser (VCSEL) semiconductor device and a light receiving unit such as a photodiode for converting light energy into electric energy.

For example, fig. 28 is a diagram showing the outside of a vehicle including a vehicle driver assistance device to which the camera device 1000 according to the embodiment is applied.

Referring to fig. 28, a vehicle 700 according to an embodiment may include wheels 13FL and 13FR rotated by a power source and predetermined sensors. The sensor may be the camera sensor 2000, but the present invention is not limited thereto.

The camera 2000 may be a camera sensor to which the camera apparatus 1000 according to the embodiment is applied. The vehicle 700 according to the embodiment may acquire image information through the camera sensor 2000 for capturing a front image or a surrounding image, determine a case where a lane line is not recognized using the image information, and generate a virtual lane line when the lane line is not recognized.

For example, the camera sensor 2000 may acquire a front image by photographing a view in front of the vehicle 700, and the processor (not shown) may acquire image information by analyzing an object included in the front image.

For example, when a lane line, an adjacent vehicle, a traveling obstacle, and an object such as a center separator, a curb, or a tree corresponding to an indirect road sign are photographed in an image photographed by the camera sensor 2000, the processor may detect the object and include the detected object in the image information. In this case, the processor may further supplement the image information by acquiring information on a distance from the object detected by the camera sensor 2000.

The image information may be information about an object photographed in the image. The camera sensor 2000 may include an image sensor and an image processing module.

The camera sensor 2000 may process a still image or a moving image obtained by an image sensor, such as a Complementary Metal Oxide Semiconductor (CMOS) or a Charge Coupled Device (CCD).

The image processing module may process a still image or a moving image acquired through the image sensor to extract necessary information and transmit the extracted information to the processor.

In this case, the camera sensor 2000 may include a stereoscopic camera to improve measurement accuracy of an object and further protect information such as a distance between the vehicle 700 and the object, but the present invention is not limited thereto.

Hereinafter, a camera device and an optical instrument including the same according to embodiments will be described below with reference to the accompanying drawings. For convenience of description, the camera apparatus according to the embodiment is described using a cartesian coordinate system (x, y, z), but may be described using another coordinate system, and the embodiment is not limited thereto. In the respective drawings, the x-axis and the y-axis represent directions perpendicular to the Z-axis, which is an optical axis direction, wherein the Z-axis direction as the optical axis direction may be referred to as a "first direction", the x-axis direction may be referred to as a "second direction", and the y-axis direction may be referred to as a "third direction". Further, the following description of the drawings will be made based on this.

The "hand shake correction function" applied to a small camera device such as a mobile device of a smart phone or a tablet computer may be a function of moving a lens in a direction perpendicular to an optical axis direction or tilting the lens with respect to the optical axis to eliminate vibration (or movement) caused by hand shake of a user.

Further, the "AF function" may be a function of automatically focusing on an object by moving a lens in the optical axis direction according to a distance to the object to obtain a clear image of the object by an image sensor. For example, the optical axis direction may be a direction parallel to the optical axis of the lens module or perpendicular to the sensing surface of the image sensor.

Hereinafter, the "camera device" may be interchangeably expressed as a "camera module", "imager" or "camera", the term "coil" may be interchangeably expressed as a coil unit or coil body, and the term "elastic member" may be interchangeably expressed as an elastic unit or spring.

Further, in the following description, "terminal" may be interchangeably expressed as a pad, an electrode, a conductive layer, an adhesive portion, or the like.

Further, the camera actuator described above with reference to fig. 1 to 27 may be applied to a part of the camera apparatus described with reference to fig. 29 to 38.

Fig. 29 is an exploded view showing the camera apparatus 100 according to the embodiment, and fig. 30 is a view showing an optical path of the camera apparatus 100 in fig. 29.

Referring to fig. 29, the camera apparatus 100 may include an optical path changing unit 10, a moving unit 20, a reflecting unit 25, and an image sensor 70.

The moving unit 20 may be interchangeably expressed as "lens driving device", "driving unit", "Voice Coil Motor (VCM)", "actuator", or "lens moving device", etc.

The camera apparatus 100 may further include at least one of a lens module 400 and a circuit board 80. The camera apparatus 100 may further include at least one of the first lens unit 15 and the second lens unit 60. The camera device 100 may also include an optical filter 90.

The camera apparatus 100 may further include a cover member or a housing for accommodating the optical path changing unit 10, the moving unit 20, the reflecting unit 25, the image sensor 70, and the circuit board 80.

Although not shown in fig. 29, the camera apparatus 100 may further include at least one of a connector, a motion sensor, and a controller provided on the circuit board 80.

The image sensor 70 may receive an image included in light incident after passing through the light path changing unit 310 and the lens module 400 and convert the received image into an electrical signal.

For example, the image sensor 70 may include an imaging region 72 for detecting light passing through the lens module 400. Here, the imaging region 72 may be interchangeably expressed as an active region, a light receiving region, or an active region. For example, the imaging region 72 of the image sensor 70 is a portion where light passing through the filter 90 is incident, and forms an image included in the light, and may include at least one pixel. For example, the image sensor 70 may be a large-capacity image sensor, such as an image sensor including pixels of 108 megabytes or more, but the present invention is not limited thereto. The image sensor 70 may be disposed or mounted on the circuit board 80.

The circuit board 80 may include various circuits, elements, controllers, etc. to convert an image formed on the image sensor 70 into an electrical signal and transmit the electrical signal to an external device. Further, the image sensor 70 and a circuit pattern electrically connected to various elements may be formed on the circuit board 80. For example, the circuit board 80 may include at least one of a rigid board and a flexible board.

The optical filter 90 may be disposed between the reflection unit 25 and the image sensor 70. The camera device 100 may further include a base (not shown) provided on the circuit board 80 and for mounting, seating or arranging the optical filter 90.

The optical path changing unit 10 may change the path of incident light and emit light.

The exit surface 10B of the optical path changing unit 10 may be disposed to face the lens module 400 mounted on the moving unit 20. For example, the exit surface 10B may be perpendicular to the optical axis direction OA, but the present invention is not limited thereto.

The optical path changing unit 10 may be a member that changes an optical path by reflecting or refracting light. For example, the optical path changing unit 10 may be a prism or a mirror.

The optical path changing unit 10 may include a first surface 10A, which is an incident surface on which light is incident, and a second surface 10B, which is an exit surface from which light exits. The optical path changing unit 10 may reflect light incident on the first surface 10A and emit the light to the second surface 10B. For example, the first surface 10A and the second surface 10B may be perpendicular to each other, and the second surface 10B may face the moving unit 20.

For example, the optical path changing unit 10 may be a right angle prism or a mirror including a first surface 10A, a second surface 10B, and a third surface 10C disposed between the first surface 10A and the second surface 10B. The first surface 10A may be interchangeably expressed as an "incident surface", the second surface 10B may be interchangeably expressed as an "exit surface", and the third surface 10C may be interchangeably expressed as a "reflective surface".

For example, the internal angle between the first surface 10A and the second surface 10C may be a right angle. Further, for example, each of the first internal angle θ1 between the first surface 10A and the third surface 10C and the second internal angle θ2 between the second surface 10B and the third surface 10C may be in the range of 30 degrees to 60 degrees. For example, each of the first and second internal angles θ1 and θ2 may be 45 degrees.

For example, the optical path changing unit 10 may further include fourth and fifth surfaces in contact with the first to third surfaces. The fourth surface and the fifth surface of the optical path changing unit 10 may be located at opposite sides. For example, each of the first to third surfaces 10A to 10C may have a quadrangular shape, and each of the fourth and fifth surfaces may have a triangular shape.

For example, the optical path changing unit 10 may or may not move in the optical axis direction. Further, for example, the optical path changing unit 10 may or may not be movable in a direction perpendicular to the optical axis direction OA. Further, for example, the optical path changing unit 10 may be rotated without using the first axis parallel to the optical axis direction OA as a rotation axis. Further, for example, the optical path changing unit 10 may not rotate about a second axis perpendicular to the optical axis direction OA.

The lens module 400 may be disposed to face the second surface 10B of the optical path changing unit 10, and coupled to the moving unit 20. The lens module 400 may be interchangeably expressed as a "lens unit" or a "lens assembly.

For example, the lens module 400 may include at least one of a lens barrel coupled to the wire barrel 110 and a lens array disposed within the lens barrel. The lens array may include at least one lens.

The moving unit 20 may be coupled to the lens module 400, and may move the lens module 400 in the optical axis direction. For example, the moving unit 20 may move at least one of a plurality of lenses included in the lens module 400 in the optical axis direction. For example, the moving unit 20 may move all of the plurality of lenses in the optical axis direction. Alternatively, the moving unit 20 may move a part of the lens adjacent to the second surface 10B of the optical path changing unit 10.

Referring to fig. 29, the moving unit 20 may include a housing 140, a wire barrel 110 disposed in the housing 140 and coupled to the lens module 400, and a first driving unit for moving the wire barrel 110 in the optical axis direction.

The first driving unit may include a coil 120 and a magnet 130. For example, the coil 120 may be disposed in any one of the wire barrel 110 and the case 140, and the magnet 130 may be disposed in the other one of the wire barrel 110 and the case 140.

The moving unit 20 may further include an elastic member coupled to the bobbin 110 and the case 140. The elastic member may support the bobbin 110 with respect to the case 140. For example, the elastic member may be implemented as a leaf spring, a coil spring, a suspension wire, or the like. In addition, the mobile unit 20 may further include a base 210 coupled to the case 140.

Since the bobbin 110 can be moved in the optical axis direction by electromagnetic force generated by interaction between the coil 120 and the magnet 130, the AF operation of the camera apparatus 100 can be performed.

For example, by controlling the intensity or/and the polarity (e.g., the direction in which current flows) of a driving signal applied to the coil 120 to adjust the intensity or/and the direction of electromagnetic force generated by the interaction between the coil 120 and the magnet 130, the movement of the AF operation unit in the first direction may be controlled to perform the AF function.

To detect the displacement or position of the cartridge 110, the camera device 100 may further include a position sensor and a sensing magnet. The position sensor may be disposed in any one of the housing and the bobbin, and the sensing magnet may be disposed in the other one of the housing and the bobbin. The position sensor may output an output signal according to a result of detecting the magnetic field strength of the sensing magnet. The displacement or position of the cartridge 110 may be detected based on an output signal of the position sensor. In another embodiment, the sensing magnet may be omitted and the position sensor may detect the magnetic field strength of the magnet 130, and in this case, the position sensor may be provided in any one of the housing and the bobbin and the magnet 130 may be provided in the other one of the housing and the bobbin.

The unidirectional or bidirectional driving of the AF operation unit may be performed by electromagnetic force generated by interaction between the coil 120 and the magnet 130. Here, the unidirectional drive means movement of the AF operation unit in one direction, for example, upward (for example, in the +z-axis direction) based on the initial position of the AF operation unit. Further, the bidirectional drive means movement of the AF operation unit in two directions (for example, upward (for example, +z-axis direction) or downward (for example, -Z-axis direction)) based on the initial position of the AF operation unit. For example, the initial position of the AF operation unit (e.g., the bobbin 110) may be an initial position of the AF operation unit (e.g., the bobbin) in a state where power or a driving signal is not applied to the coil 120.

Referring to fig. 30, light may be incident on the first surface 10A of the optical path changing unit 10 along the first vertical direction VD1, and the optical path changing unit 10 may emit light toward the first horizontal direction LD 1.

The reflection unit 25 may include a first reflector 30 for reflecting light passing through the lens module 400 in a second vertical direction VD2 perpendicular to the first lateral direction LD1, a second reflector 40 for reflecting light reflected from the first reflector 30 in the same direction as the first lateral direction LD1, and a third reflector 50 for reflecting light reflected by the second reflector 40 in the first vertical direction VD1 opposite to the second vertical direction VD 2.

For example, each of the first, second and third reflectors 30, 40 and 50 may be a mirror or a prism.

The first reflector 30 may be disposed at the rear of the mobile unit 10 and spaced apart from the mobile unit 10. The second reflector 40 may be disposed above the first reflector 40 and spaced apart from the first reflector 40. The third reflector 50 may be disposed behind the second reflector 40.

The lenses of the lens module 400 may correspond to, face or overlap with the reflective surface 31 of the first reflector 30 in the first lateral direction LD 1. The reflective surface 31 of the first reflector 30 may correspond to, face or overlap with the reflective surface 41 of the second reflector 40 in the second vertical direction VD 2. The reflective surface 41 of the second reflector 40 may correspond to, face or overlap with the reflective surface 51 of the third reflector 50 in the first lateral direction LD 1.

The first reflector 30 may be disposed below the base line 101. For example, the uppermost end of the first reflector 30 may be located below the base line 101. The base line 101 may be a line parallel to the first surface 10A of the optical path changing unit 10.

For example, the reflective surface 31 of the first reflector 30 may be disposed below the base line 101. For example, the uppermost end of the reflective surface 31 of the first reflector 30 may be located below the base line 101.

Each of the second reflector 40 and the third reflector 50 may be disposed on the base line 101. For example, the lowermost end of the second reflector 40 and the lowermost end of the third reflector 50 may be located above the baseline 101. For example, the reflective surface 41 of the second reflector 40 and the reflective surface 51 of the third reflector 50 may be disposed on the base line 101. For example, the uppermost end of the reflective surface 41 of the second reflector 40 and the uppermost end of the reflective surface 51 of the third reflector 50 may be located above the base line 101.

For example, the third reflector 50 may be located at the same height as the second reflector 40. For example, the third reflector 50 may be symmetrically arranged with the second reflector 40.

For example, the respective inclination angles of the reflective surface 31 of the first reflector 30, the reflective surface 41 of the second reflector 30, and the reflective surface 51 of the third reflector 60 based on the base line 101 may be in the range of 30 degrees to 60 degrees. For example, the respective inclination angles of the reflective surface 31 of the first reflector 30, the reflective surface 41 of the second reflector 30, and the reflective surface 51 of the third reflector 60 based on the base line 101 may be 45 degrees.

For example, the lowermost end of the second reflector 40 (or the second reflective surface 41) may be located at the same height as the base line 101. Further, the lowermost end of the third reflector 50 (or the third reflecting surface 51) may be located at the same height as the base line 101. Since this can be achieved by lowering the heights of the second reflector 40 and the third reflector 50 based on the base line 101, the length of the camera apparatus 100 in the vertical direction can be reduced, thereby reducing the thickness of the optical instrument 200A in which the camera apparatus 100 is mounted. The third reflector 50 may be located at the same height as the second reflector 40 based on the baseline 101.

In another embodiment, the lowermost end of the second reflector 40 (or reflective surface 41) and the lowermost end of the third reflector 50 (or reflective surface 51) may be located above the baseline 101. In this case, the distance in the vertical direction from the base line 101 to the lowermost end of the second reflector 40 (or the reflecting surface 41) may be smaller than the distance D11 in the vertical direction from the lowermost end to the uppermost end of the second reflector 40. Further, a distance in the vertical direction from the base line 101 to the lowermost end of the third reflector 50 (or the reflecting surface 51) may be smaller than a distance D12 in the vertical direction from the lowermost end to the uppermost end of the third reflector 50. This is to prevent an increase in the size of the camera device in the vertical direction due to an increase in the length of the reflection unit 25, and to prevent occurrence of light loss due to an increased light path.

The second reflector 40 and the third reflector 50 may be spaced apart from each other in the lateral direction LD1 or LD 2. The separation distance d2 between the second reflector 40 and the third reflector 50 in the lateral direction LD1 or LD2 may be less than or equal to K times the distance d1 in the lateral direction LD1 or LD2 from the lowermost end to the uppermost end of the second reflector 40 (or the second reflecting surface 41). For example, d2 may be a distance between an upper portion (or uppermost end) of the second reflector 40 and an upper portion (or uppermost end) of the third reflector 50 in the lateral direction LD1 or LD 2.

For example, K may be 1.ltoreq.K.ltoreq.3. Alternatively, K may be 1.5, for example. When d2 exceeds 3 times d1, the optical path increases to cause optical loss.

In another embodiment, the second reflector 40 and the third reflector 50 may be in contact with each other. For example, in another embodiment, the upper end of the second reflector 40 may be in contact with the upper end of the third reflector 50.

The first lens unit 15 may be disposed on the first surface 10A of the optical path changing unit 10. The first lens unit 15 may include at least one lens, and collect light and emit light toward the first surface 10A. In other words, the first lens unit 15 may be used to make an image circle (image circle) smaller and reduce the size of components disposed behind the optical path changing unit 10, thereby reducing the size of the camera apparatus 100.

For example, the first lens unit 15 may include a convex lens. For example, the first lens unit 15 may include an exit surface that is a convex surface protruding toward the first surface 10A. For example, the incident surface of the first lens unit 15 may be a surface recessed toward the first surface 10A. In another embodiment, the incident surface of the first lens unit 15 may be flat. The optical path of the light passing through the first lens unit 15 may be narrowed. In another embodiment, the first lens unit 15 may be omitted.

The second lens unit 60 may be disposed between the third reflector 50 and the image sensor 70. The second lens unit 60 may be used to magnify an image and form a magnified image on the image sensor 70.

For example, the second lens unit 60 may include a concave lens. The second lens unit 15 may include at least one lens and disperse light to widen an optical path. For example, the second lens unit 60 may include a concave exit surface when the image sensor 70 is viewed from the third reflector 50. For example, when the image sensor 70 is viewed from the third reflector 50, the incident surface of the second lens unit 60 may include a convex incident surface. In another embodiment, the incident surface of the second lens unit 60 may be flat. The optical path of light passing through the second lens unit 60 may be widened, and the second lens unit 60 may serve to widen an image circle.

The optical filter 90 may be disposed between the second lens unit 60 and the image sensor 70. The filter 90 may be used to block light of a particular frequency band from entering the image sensor 810 or passing through the light. For example, the filter 610 may be an infrared blocking filter, but the present invention is not limited thereto. For example, the filter 610 may be disposed parallel to an active area or an imaging area of the image sensor 70. In another embodiment, a filter may be disposed between the third reflector 50 and the second lens unit 60. In yet another embodiment, a filter may be disposed between the lens module 400 of the mobile unit 20 and the first reflector 30.

The length of the optical path between the exit surface (or entrance surface) of the first lens unit 15 and the imaging region 72 of the image sensor 70 is defined as the Total Track Length (TTL). For example, TTL may be a value obtained by adding lengths of path (1), path (2), path (3), path (4), and path (5) in fig. 30.

The image sensor 70 may be disposed such that the imaging region 72 is parallel to the lateral direction LD1 or LD 2. For example, the image sensor 70 (or the imaging region 72) may be disposed in a direction parallel to the optical axis direction OA. Further, for example, the image sensor 70 (or the imaging region 72) may be disposed parallel to the first surface 10A of the optical path changing unit 10.

Further, for example, the image sensor 70 (or the imaging region 72) may not face or overlap the moving unit 20 and the lens module 400 in the vertical direction VD1 or VD 2. For example, the image sensor 70 (or the imaging region 72) may not face or overlap with the lenses of the lens module 400 in the vertical direction VD1 or VD 2.

The image sensor 70 may face or overlap the optical path changing unit 10 (e.g., the second surface 10B) or/and the moving unit 20 in the optical axis direction or the lateral direction LD1 or LD 2.

The second lens 60 or/and the filter 90 may face and overlap the optical path changing unit 10 (e.g., the second surface 10B) or/and the moving unit 20 in the optical axis direction or the lateral direction LD1 or LD 2.

Fig. 31 is a diagram showing a reflection unit 25A according to another embodiment. The same reference numerals as in fig. 29 and 30 denote the same components, and a description of the same components will be simplified or omitted.

Referring to fig. 31, the position of the reflection unit 25A in fig. 31 is different from the reflection unit 25 in fig. 29 and 30. The reflection unit 25A may include a first reflector 30, a second reflector 40A, and a third reflector 59A. A portion of the second reflector 40A may be disposed below the base line 101 and the remaining portion of the second reflector 40A may be disposed above the base line 101. Further, a portion of the third reflector 5A may be disposed below the base line 101, and the remaining portion of the third reflector 50A may be disposed above the base line 101.

The distance D1 in the vertical direction (e.g., DV 1) from the base line 101 to the lowermost end of the second reflector 40A (or the second reflecting surface 41) may be smaller than the distance D2 in the vertical direction (e.g., DV 2) from the base line 101 to the uppermost end of the second reflector 40A (or the second reflecting surface 41) (D1 < D2).

The distance D1 from the base line 101 to the lowermost end of the second reflector 40A (or the second reflecting surface 41) may be equal to or smaller than the distance D3 from the base line 101 to the uppermost end of the first reflector 30 (or the first reflecting surface 31) (d1.ltoreq.d3).

The distance D2 from the base line 101 to the uppermost end of the second reflector 40A (or the second reflecting surface 41) may be greater than the distance D3 from the base line 101 to the uppermost end of the first reflector 30 (or the first reflecting surface 31) (D2 > D3). For example, each of D1 and D3 may be a distance in the first vertical direction DV2, and D2 may be a distance in the second vertical direction DV 2.

The distance in the second vertical direction VD2 from the lowermost end of the second reflector 40A (or the second reflecting surface 41) to the uppermost end of the second reflector 40A (or the second reflecting surface 41) is defined as "first distance D11".

The distance D1 from the base line 101 to the lowermost end of the second reflector 40A (or the second reflecting surface 41) may be in the range of 0 to 20% of the first distance D11. For example, the distance D2 from the base line 101 to the uppermost end of the second reflector 40A (or the second reflecting surface 41) may be in the range of 80% to 100% of the first distance D11.

In another embodiment, D1 may be in the range of 5% to 15% of D11, and D2 may be in the range of 85% to 95% of D11.

D1 exceeds 20% of the first distance D11 because a portion of the light passing through the lens module 400 may be blocked by the second reflector 40A, thereby blocking the light from entering the first reflector 30.

The distance D4 in the vertical direction (e.g., DV 1) from the base line 101 to the lowermost end of the third reflector 50A (or the third reflective surface 51) may be smaller than the distance D5 in the vertical direction (e.g., DV 2) from the base line 101 to the uppermost end of the third reflector 50A (or the third reflective surface 51) (D4 < D5).

The distance D4 from the base line 101 to the lowermost end of the third reflector 50A (or the third reflecting surface 51) may be equal to or smaller than the distance D3 from the base line 101 to the uppermost end of the first reflector 30 (or the first reflecting surface 31) (d4+.d3).

The distance D5 from the base line 101 to the uppermost end of the third reflector 50A (or the third reflective surface 51) may be greater than the distance D3 from the base line 101 to the uppermost end of the first reflector 30 (or the first reflective surface 31) (D5 > D3). For example, D4 may be a distance in the first vertical direction DV1 and D5 may be a distance in the second vertical direction DV 2.

The distance in the vertical direction from the lowermost end of the third reflector 50A (or the third reflecting surface 51) to the uppermost end of the third reflector 50A (or the third reflecting surface 51) is defined as "second distance D12".

The distance D4 from the base line 101 to the lowermost end of the third reflector 50A (or the third reflective surface 51) may be in the range of 0% to 20% of the second distance D12. For example, the distance D5 from the base line 101 to the uppermost end of the third reflector 50A (or the third reflective surface 51) may be in the range of 80% to 100% of the second distance D12.

D4 exceeds 20% of the second distance D12 because a portion of the light passing through the lens module 400 may be blocked by the first reflector 30, thereby blocking the light from entering the third reflector 50.

For example, D1 may be the same as D4 and D2 may be the same as D5. Further, for example, D11 may be the same as D12.

The distance D5 in the first vertical direction VD1 from the lowermost end of the third reflector 50 (or the third reflecting surface 51) to the image sensor 70 (or the imaging region 72) may be equal to or less than the distance D6 in the first vertical direction from the lowermost end of the second reflector 40A (or the second reflecting surface 41) to the lowermost end of the first reflector 30 (or the first reflecting surface 31) (d5.ltoreq.d6). Since d5+.d6, the length of the camera device 100 in the second direction (X-axis direction) can be reduced, thereby reducing the thickness of the optical instrument 200A.

Fig. 32 is an exploded view showing a camera apparatus 100A according to another embodiment. The same reference numerals as in fig. 29 denote the same components, and a description of the same components will be simplified or omitted.

Referring to fig. 32, the camera apparatus 100A may include an optical path changing unit 10, a moving unit 20, a reflector 30A, a second lens 60, and an image sensor 70. In addition, the camera apparatus 100A may further include at least one of the first lens 15, the filter 90, and the circuit board 80.

The reflector 30A may be disposed at the rear of the moving unit 20 (or the lens module 400) to face the moving unit 20 in the optical axis direction or the lateral direction LD1 or LD 2.

The reflector 30A may include a reflective surface 30A1 facing or overlapping the moving unit 20 (or the lens module 400) in the optical axis direction or the lateral direction LD1 or LD 2.

The reflective surface 30A1 of the reflector 30A may face or overlap the second lens 60 in the vertical direction VD1 or DV 2. Further, the reflection surface 30A1 of the reflector 30A may face or overlap the filter 90 in the vertical direction VD1 or DV 2. The reflective surface 30A1 of the reflector 30A may face or overlap the image sensor 70 (or the imaging region 72) in the vertical direction VD1 or DV 2.

The reflector 30A reflects light passing through the lens module 400 toward the first vertical direction VD 1. The reflector 30A may be a mirror or a prism. The TTL in the camera apparatus 100A in fig. 33 may be a value obtained by adding the lengths of the path (1), the path (2), and the path (6).

Fig. 33 is an exploded view showing a camera apparatus 100B according to still another embodiment. The same reference numerals as in fig. 29 denote the same components, and a description of the same components will be simplified or omitted.

Referring to fig. 33, the camera apparatus 100B may include an optical path changing unit 10, a moving unit 20, a reflecting unit 25B, and an image sensor 70. In addition, the camera device 100B may further include at least one of the first lens 15, the filter 90, the second lens 60, and the circuit board 80.

The reflection unit 25B in fig. 33 may include a first reflector 30 and a second reflector 45.

Instead of the second and third reflectors 40 and 50 in fig. 29 and the second and third reflectors 40 and 50 in fig. 30, the second reflector 45 in fig. 33 will be implemented as one prism.

The prism 45 may include a first surface 45A, a second surface 45B, and a third surface 45C. Light reflected from the first reflector 30 may be incident on a partial region of the first surface 45A, the incident light incident on the first surface 45A may be reflected by the second surface 45B toward the first horizontal direction LD1, the first reflected light reflected by the second surface 45B may be reflected by the third surface 45C toward the first vertical direction VD1, and the second reflected light reflected by the third surface 45C may exit through a remaining region of the first surface 45A. The second reflected light may pass through the second lens 60 and/or the filter 90 and reach the imaging region 72 of the image sensor 70.

Fig. 34 is a cross-sectional view showing a mobile unit 20A according to another embodiment.

Referring to fig. 34, the mobile unit 20A may perform an AF operation for focusing and an OIS operation for correcting hand shake. In other words, the moving unit 20A may move the lens module 400 in the optical axis direction (e.g., the Z-axis direction) and move the lens module 400 in a direction perpendicular to the optical axis direction (e.g., the X-axis direction or the Y-axis direction).

The moving unit 20A may include a housing 3140, a barrel 3110 disposed within the housing 3140 and coupled to the lens module 400, elastic members 3150 and 3160 coupled to the barrel 3110 and the housing 3140, a first driving unit for moving the barrel 10 in the optical axis direction, and a second driving unit for moving the housing 140 in a direction perpendicular to the optical axis direction.

The moving unit 20A may include a base 3210 disposed under the housing 3140 and a support member 220 coupled to the elastic member (e.g., 3150) and for supporting the housing 3140 with respect to the base 3210. The elastic members may include an upper elastic member 3150 coupled to an upper portion of the drum 3110 and an upper portion of the housing 3140, and a lower elastic member 3160 coupled to a lower portion of the drum 3110 and a lower portion of the housing 3140. This can also be applied to the first camera actuator described with reference to fig. 1 to 7.

The first driving unit may include a first coil 3120 disposed in the coil cylinder 3110 and a magnet 3130 disposed in the housing 3140. Since the wire barrel 3110 may be moved in the optical axis direction by electromagnetic force generated by interaction between the first coil 3120 and the magnet 3130, AF operation of the camera apparatus 100, 100A, or 100B may be performed.

The second driving unit may include a magnet 3130 and a second coil 3230 facing the magnet 3130 in the optical axis direction. The mobile unit 20A may further include a circuit board 3250 electrically connected to the second coil 3230 and coupled to the base 3210. The circuit board 3250 may be electrically connected to the support member 220. Since the housing 3140 can be moved in the second direction (for example, the X-axis direction) or/and the third direction (for example, the Y-axis direction) of the plane perpendicular to the optical axis direction by the electromagnetic force generated by the interaction between the second coil 3130 and the magnet 3130, the hand shake correction of the camera apparatus 100, 100A, or 100B can be performed.

Fig. 35a is a first sectional view showing a mobile unit 20B according to still another embodiment, and fig. 35B is a second sectional view showing the mobile unit 20B in fig. 35 a.

Referring to fig. 35a and 35B, the moving unit 20B includes a first lens unit 411, a second lens unit 412, and a driving unit disposed or arranged in the optical axis direction (or first direction). Mobile unit 20B may perform AF and/or zoom functions. Here, the zoom function may be a zoom function of photographing a distant object by increasing or decreasing magnification of the zoom lens. The lens unit may be interchangeably expressed as a "lens assembly". In other words, the description of the mobile unit 20B is also applicable to fig. 8 to 26 described above.

The driving unit may move each of the first lens unit 411 and the second lens unit 412 in the optical axis direction OA (or the first direction).

For example, the first lens unit 411 may be a zoom lens unit for performing a zoom function, and the second lens unit 412 may be a focus lens unit for performing a focus function. For example, the driving unit may perform zooming at a preset magnification by moving the first lens unit 411 to a preset zooming position. Further, the driving unit may perform a focusing operation by moving the second lens unit 412 to a preset focusing position in response to a preset zoom position.

The first lens unit 411 may include a first lens holder 29 and a first lens array 49 disposed within the first lens holder 29, and the second lens unit 412 may include a second lens holder 39 and a second lens array 59 disposed within the second lens holder 39. Each of the first lens array 29 and the second lens array 49 may include a single lens or a plurality of lenses arranged in the optical axis direction.

For example, the second lens unit 412 may be disposed behind the first lens unit 411. For example, the first lens unit 411 may be disposed between the optical path changing unit 10 and the second lens unit 412.

The moving unit 20B may further include a housing 610 for accommodating the first lens unit 411 and the second lens unit 423.

The driving units may include a first driving unit for moving the first lens unit 411 in the optical axis direction and a second driving unit for moving the second lens unit 412 in the optical axis direction.

For example, the first driving unit may include a first coil unit 120-1 disposed at a first side of the housing 610 and a first magnet unit 130-1 disposed in the first lens holder 29 and facing or overlapping the first magnet unit 130-1 in a third direction. For example, the first driving unit may further include a first circuit board 192 disposed at a first side of the housing 610 and electrically connected to the first coil unit 120-1. The first driving signal for zooming may be supplied from the first circuit board 192 to the first coil 120-1.

The second driving unit may include a second coil unit 120-2 disposed at a second side of the housing 610 and a second magnet unit 130-2 disposed in the second lens holder 59 and facing or overlapping the second coil unit 120-2 in the third direction. For example, the second driving unit may further include a second circuit board 194 disposed at the second side of the housing 610 and electrically connected to the second coil unit 120-2. The second driving signal for the focusing operation may be supplied from the second circuit board 194 to the second coil 120-2.

The moving unit 20B may include a first support member disposed between the housing 610 and the first lens holder 29 and a second support member disposed between the housing 610 and the second lens holder 39. For example, each of the first support member and the second support member may be a rolling member. For example, the rolling members may be ball members, balls or ball bearings. The housing 610 may include a guide unit for guiding the rolling motion of the ball members. For example, the housing 610 may include a first guide unit corresponding to the first lens holder 29 and a second guide unit corresponding to the second lens holder 29.

At least one first ball member may be disposed between the first guide unit and the first lens holder 29, and the first lens holder 29 may be slidably moved in the optical axis direction by a rolling motion of the first ball member. Further, at least one second ball member may be provided between the second guide unit and the second lens holder 39, and the second lens holder 39 may be slidably moved in the optical axis direction by a rolling motion of the second ball member.

The movement of each of the first lens unit 411 and the second lens unit 412 may be controlled by controlling the first driving signal and the second driving signal. When the movement of each of the first lens unit 411 and the second lens unit 412 is controlled, the position (or displacement) of each of the first lens unit 411 and the second lens unit 412 may be controlled, so that zooming and AF of the camera apparatus 100, 100A, or 100B may be performed.

The moving unit 20B may further include a third lens unit 413 disposed in front of the first lens unit 411. The third lens unit 413 may be a fixed lens unit that does not move in the optical axis direction. For example, the third lens unit 413 may include a third lens holder 643 and a third lens array 641, the third lens array 641 including a single lens or a plurality of lenses disposed within the third lens holder 643.

Fig. 36a is a first sectional view showing the optical path changing unit 10-1 according to another embodiment, and fig. 36b is a second sectional view showing the optical path changing unit 10-1 in fig. 36 a. The optical path changing unit 10-1 in fig. 36a and 36b may be applied to or similarly applied to the camera apparatus according to the embodiment of fig. 29 to 35 b.

Referring to fig. 36a and 36b, the optical path changing unit 10-1 may move in a direction (e.g., Y-axis direction or X-axis direction) perpendicular to an optical axis direction (e.g., Z-axis direction) of the lens module 400 for OIS driving.

The optical path changing unit 10-1 may include a housing 330, a holder 320 disposed within the housing 330, an optical member 310 disposed within the holder 320, a support plate 340 disposed between the holder 320 and the housing 330, and an OIS driving unit.

The optical member 310 may be a prism (e.g., a right angle prism) for reflecting light. For example, the optical member 310 may correspond to the optical path changing unit 10 in fig. 29, and the description of the first surface 10A, the second surface 10B, and the third surface 10C of the prism of the optical path changing unit 10 described with reference to fig. 29 may be applied to or similarly applied to the optical member 310. Furthermore, the following description may also be applied to fig. 1 to 7 in the same manner.

The holder 320 may include a first opening 301 exposing the first surface 10A of the optical member 310 and a second opening 302 exposing the second surface 10B of the optical member 310. The housing 330 may include a first opening exposing the first surface 10A of the optical member 310 disposed in the holder 320 and a second opening exposing the second surface 10B of the optical member 310.

The support plate 340 may support the holder 320 with respect to the housing 330. The support plate 340 may include at least one front protrusion 61A and 61B protruding toward the holder 320 and at least one rear protrusion 62A and 62B protruding toward the housing 330. For example, the support plate 340 may include two front protrusions 61A and 61B disposed or arranged to be spaced apart from each other in the second direction (or the third direction) and two rear protrusions 62A and 62B disposed or arranged to be spaced apart from each other in the third direction (or the second direction).

The holder 320 may include at least one groove in which the front protrusions 61A and 61B are inserted, disposed, or seated. In addition, the housing 330 may include at least one groove in which the rear protrusions 62A and 62B are inserted, disposed, or seated.

The OIS driving unit may include a first OIS driving unit and a second OIS driving unit.

For example, the first OIS driving unit may include a first OIS magnet 350 disposed in the holder 320 and a first OIS coil 360 disposed in the housing 330 and corresponding to or facing the first OIS magnet 350 in the third direction. For example, the first OIS magnet 350 may include a first magnet unit 352 disposed on a first side of the holder 320 and a second magnet unit 354 disposed on a second side of the holder 320. For example, the first magnet unit 352 and the third magnet unit 354 may be located at opposite sides in the third direction.

For example, the first OIS coil 360 may include a first coil unit 362 disposed on a first side of the housing 330 and a second coil unit 364 disposed on a second side of the housing 330.

In addition, the first OIS driving unit may further include a first circuit board 250A disposed at a first side of the housing 330 and electrically connected to the first coil unit 362, and a second circuit board 250B disposed at a second side of the housing 330 and electrically connected to the second coil unit 364.

The second OIS driving unit may include a second OIS magnet 370 disposed in the holder 320 and a second OIS coil 380 disposed under the housing 330 and corresponding to or facing the second OIS magnet 370 in a second direction. The second OIS drive unit may also include a third circuit board 390 disposed below the housing 330 and electrically connected to the second OIS coil 380. The first driving signal may be supplied to the first OIS coil 360 and the second driving signal may be supplied to the second OIS coil 380.

The holder 320 may be tilted or rotated about a second axis (X-axis) or a predetermined angle using the second axis as a rotation axis by a first electromagnetic force generated by an interaction between the first OIS magnet 350 and the first OIS coil 360.

Further, the holder 320 may be tilted or rotated about a third axis (Y-axis) or at a preset angle using the third axis as a rotation axis by a second electromagnetic force generated by an interaction between the second OIS magnet 370 and the second OIS coil 380. By controlling the first and second driving signals supplied to the first and second OIS driving units, the optical member 310 of the optical path changing unit 10-1 may be tilted or rotated at a preset angle about an axis (e.g., an X-axis or a Y-axis) perpendicular to the optical axis direction (e.g., a Z-axis direction) of the lens module 400, so that hand shake correction of the camera device 100, 100A or 100B may be performed.

The optical path changing unit 10-1 may include a first magnetic part (not shown) provided in the holder 320 and a second magnetic part (not shown) provided in the housing 330. The attractive or repulsive force may act between the first and second magnetic parts, and the holder 320 and the case 330 may press the support plate 340 by the attractive or repulsive force between the first and second magnetic parts, and by the pressing, the support plate 340 may be stably coupled to the holder 320 and the case 330.

As the size of the image sensor increases, the effective diameter and focal length of the lens also increase, so that the size of the camera device increases. The thickness of the optical instrument mounted with the camera device may increase due to an increase in the thickness of the camera device.

When the size of the image sensor is increased to improve image performance, the AF function and OIS function are basically required to obtain a high quality image, but there is a limit in applying the AF function and OIS function due to the increase in the size and weight of the lens.

Since the camera apparatus 100, 100A or 100B according to the embodiment includes the optical path changing unit 10 and the reflecting unit 25, 25A or 25B that change the optical path, the thickness or height of the camera apparatus 100, 100A or 100B in the vertical direction VD1 or VD2 can be reduced, thereby preventing an increase in the length between the front surface and the rear surface of the optical instrument 200A or an increase in the thickness of the optical instrument 200A.

Further, the camera apparatus 100, 100A or 100B according to the embodiment includes the second lens 60 capable of magnifying an image, so that light suitable for the large image sensor 70 can be supplied without increasing the size of the lens of the mobile unit 20, 20A or 20B.

Fig. 37 is a sectional view showing a mobile unit 20-1 according to still another embodiment.

Referring to fig. 37, the moving unit 20-1 may include a housing 2610, a wire barrel 2110 provided within the housing 2610, a lens module 400-1 coupled to the wire barrel 2110, and a driving unit for moving the wire barrel 2110 in a first direction (e.g., an optical axis direction or a Z-axis direction). The wire barrel 2110 may be interchangeably referred to as a "lens holder".

For example, the lens module 400-1 may include at least one lens or lens array. For example, the lens module 400-1 may include various types of optical lenses. For example, the lens module 400-1 may include a front lens having positive optical power and a rear lens having negative optical power.

The moving unit 20-1 may include an elastic member coupled to the wire barrel 2110 and the housing 2610, and the elastic member may support the wire barrel 2110 with respect to the housing 2610 so that the wire barrel 2110 may move in the optical axis direction. The elastic member may include at least one of an upper elastic member 150 coupled to an upper portion of the wire barrel 2110 and an upper portion of the housing 2160 and a lower elastic member 160 coupled to a lower portion of the wire barrel 2110 and a lower portion of the housing 2610. For example, the housing 2610 may be a fixed unit and the wire barrel 2110 may be an AF moving unit.

The moving unit 20-1 may further include a cover member 300 for accommodating the housing 2610 and the wire barrel 2110. The cover member 300 may be box-shaped including an upper plate and a side plate, and may have an open lower portion. The housing 2610 may include an opening for receiving the wire barrel 2110.

The driving unit moves the lens module 400-1 in the first direction. The drive unit may include magnets 2130A and 2130B disposed in a wire barrel 2110 and coils 2120A and 2120B disposed in a housing 2610.

For example, the magnets may include a first magnet 2130A disposed on a first side of the wire barrel 2110 and a second magnet 2130B disposed on a second side of the wire barrel 2110.

The coils may include a first coil 2120A corresponding to, facing or overlapping the first magnet 2130A and disposed on a first side of the housing 610 and a second coil 2120B corresponding to, facing or overlapping the second magnet 2130B and disposed on a second side of the housing 610.

The wire barrel 2110 supported by the elastic member may be moved in the first direction by an electromagnetic force generated by an interaction between the first coil 2120A and the first magnet 2130A and an electromagnetic force generated by an interaction between the second coil 2120B and the second magnet 2130B.

By controlling the driving signals supplied to the first coil 2130A and the second coil 2130B, the movement of the lens module 400-1 mounted in the cylinder 2110 in the optical axis direction or the first direction can be controlled, so that an AF function or/and a zoom function can be performed. For example, mobile unit 20-1 may perform a fixed zoom function. The fixed zoom function may be a zoom function of photographing a distant object by increasing magnification through a zoom lens.

The driving unit may further include a plate unit electrically connected to the first coil 2120A and the second coil 2120B. For example, the plate unit may be disposed in the housing 2610. For example, the board unit may include a first circuit board 2192 disposed on a first side of the housing 2610 and a second circuit board 2194 disposed on a second side of the housing 2610.

The mobile unit 20-1 may also include a base 2210 disposed behind the wire barrel 2110 and/or the housing 2610. The direction from the wire barrel 2110 and/or the housing 2610 toward the reflection unit 25 is referred to as a rearward direction. For example, base 2210 may be disposed behind lower resilient member 2160.

Base 2210 may have openings corresponding to the openings of wire barrel 2110 and/or the openings of housing 2610. Base 2210 may be coupled to cover member 300.

Fig. 38 is a diagram showing the camera device 100 according to the embodiment disposed below the display panel 751.

Referring to fig. 38, the optical instrument 200A may include a front surface (or front side) and a rear surface (or rear side) opposite the front surface (or front side).

For example, structurally, the front surface of the optical instrument 200A may be formed of glass (e.g., front tempered glass) included in the display panel 751 or the touch screen panel 753.

The touch screen panel 753 and the display panel 751 may be located adjacent to the front surface of the optical instrument 200A. For example, the front surface of the optical instrument 200A may be "front surface 7A of the display panel 751".

The rear surface 7B of the display panel 751 may be a rear surface of a component (e.g., glass or plate) closest to the camera device 100, 100A, or 100B among components constituting the general display panel 751.

For example, in an embedded type in which a display panel and a touch screen panel are integrated, the front surface of the optical instrument 200A may be "the front surface of the display panel". Alternatively, for example, in a case where the display panel and the touch screen panel are separated, the front surface of the optical instrument 200A may be "the front surface of the touch screen panel". Alternatively, for example, the front surface of the portable terminal in the case of both the embedded type and the plug-in type may correspond to the front surface of the display panel. The display panel 753 may include an active region S1.

The first surface 10A of the optical path changing unit 10 may be disposed to face the front surface 7A or the rear surface 7B of the display panel 751 in the vertical direction VD1 or VD 2. For example, the first surface 10A of the optical path changing unit 10 may be disposed parallel to the front surface 7A or the rear surface 7B of the display panel 751.

The first surface 10A of the optical path changing unit 10 may be disposed to be fixed at a position spaced apart from the front surface 7A of the display panel 751 by a preset distance d 3. Alternatively, for example, the first surface 10A of the optical path changing unit 10 may be provided to be fixed at a position spaced apart from the rear surface 7B of the display panel 751 by a preset distance d 4.

For example, d3 may be a distance in the vertical direction between the first surface 10A of the optical path changing unit 10 and the front surface 7A of the display panel 751. For example, d4 may be a distance in the vertical direction between the first surface 10A of the optical path changing unit 10 and the rear surface 7B of the display panel 751.

Since the large-capacity image sensor has a large number of pixels in the imaging region 72, the size of the image sensor is large. When the imaging area of the large-capacity image sensor is set to be perpendicular to the first surface 10A of the optical path changing unit 10 or the front surface 7A (or the rear surface 7B) of the display panel 751 shown in fig. 38, the size (e.g., thickness) of the optical instrument may increase.

In the embodiment, since the image sensor 70 is disposed parallel to the first surface 10A of the optical path changing unit 10 and/or the front surface 7A or the rear surface 7B of the display panel 751, even when the size of the image sensor 70 increases, the size of the optical instrument 200A in the direction perpendicular to the display panel 751 does not increase, so that an increase in the thickness of the optical instrument 200A can be prevented.

The reflection unit 25, 25A or 25B may serve to reflect light passing through the moving unit 20 and provide the reflected light to the image sensor 70 disposed in parallel with the front surface 7A or the rear surface 7B of the display panel 751.

Further, as shown in fig. 30, by adjusting the heights of the second reflector 40A and the third reflector 50A, the height of the camera device 100, 100A, or 100B in the vertical direction VD1 or VD2 can be reduced, thereby preventing an increase in the thickness of the optical instrument 200A.

Further, since the second lens 60, the filter 90, and/or the image sensor 80 may be disposed to face or overlap the moving unit 20 or/and the second surface 10B in the optical axis direction or in a direction parallel to the first surface 10A, the height of the camera device 100, 100A, or 100B may be reduced, thereby preventing an increase in the thickness of the optical instrument 200A. Further, as shown in fig. 3, since d5+.d6, the height of the camera device 100, 100A, or 100B in the vertical direction can be reduced, thereby preventing an increase in the thickness of the optical instrument 200A.

According to the embodiment, it is possible to increase the resolution by providing a large-capacity image sensor, and to prevent an increase in the size of the camera apparatus 100, 100A or 100B caused by an increase in the size of the large-capacity image sensor and an increase in the thickness of the optical instrument 200A to which the camera apparatus 100, 100A or 100B is mounted.

For example, the camera apparatus 100 according to the embodiment may be included in an optical instrument for forming an image of an object in space using characteristics of light such as reflection, refraction, absorption, interference, and diffraction, and improving the visual ability of eyes, or recording and reproducing an image formed by a lens, performing optical measurement, propagating or transmitting an image, or the like. For example, the optical instrument according to the embodiment may be a hand-held phone, a portable phone, a smart phone, a portable smart device, a digital camera, a notebook computer, a digital broadcasting terminal, a Personal Digital Assistant (PDA), a Portable Multimedia Player (PMP), a navigation device, or the like, but is not limited thereto, and may be any device for capturing video or photos.

For example, the optical instrument according to the embodiment may include a mobile device, a telephone, a smart phone, and a portable terminal mounted with a camera.

Fig. 39 is a perspective view showing an optical instrument 200A according to an embodiment, and fig. 40 is a structural view of the optical instrument 200A shown in fig. 39.

Referring to fig. 39 and 40, a portable terminal 200A (hereinafter, referred to as a "terminal") may include a main body 850, a wireless communication unit 710, an audio/video (a/V) input unit 720, a sensing unit 740, an input/output unit 750, a memory unit 760, an interface unit 770, a controller 780, and a power supply unit 790.

The main body 850 shown in fig. 39 may be in the form of a rod, but is not limited thereto, and may have various structures such as a sliding type, a folding type, a swing type, or a rotation type in which two or more sub-bodies are combined to achieve a relative motion.

The body 850 may include a housing (cover, housing, lid, etc.) that forms an exterior. For example, the body 850 may be divided into a front case 851 and a rear case 852. Various electronic components of the terminal may be embedded in a space formed between the front housing 851 and the rear housing 852.

The wireless communication unit 710 may include one or more modules for implementing wireless communication between the terminal 200A and a wireless communication system or between the terminal 200A and a network in which the terminal 200A is located. For example, the wireless communication unit 710 may include a broadcast receiving module 711, a mobile communication module 712, a wireless internet module 713, a short-range communication module 714, and a location information module 715.

The a/V input unit 720 is used to input an audio signal or a video signal, and may include a camera 721, a microphone 722, and the like.

The camera 721 may comprise a camera device according to any of the embodiments.

The sensing unit 740 may detect a current state of the terminal 200A, such as an on/off state of the terminal 200A, a position of the terminal 200A, the presence of a user touch, a direction of the terminal 200A, or acceleration/deceleration of the terminal 200A, and generate a sensing signal for controlling an operation of the terminal 200A. For example, when the terminal 200A is in the form of a slide phone, the sensing unit 740 may detect whether the slide phone is opened or closed. In addition, the sensing unit 740 is responsible for detecting functions related to whether the power supply unit 790 supplies power, whether the interface unit 770 is connected to an external device, and the like.

The input/output unit 750 is used to generate input or output related to vision, hearing, touch, etc. The input/output unit 750 may generate input data for controlling the operation of the terminal 200A, and also display information processed by the terminal 200A.

The input/output unit 750 may include a keyboard unit 730, a display panel 751, a touch screen panel 753, and a sound output module 752. The keyboard unit 730 may generate input data through keyboard input.

The display panel 751 may include a plurality of pixels whose colors vary according to an electrical signal. For example, the display panel 751 may include at least one of a liquid crystal display, a thin film transistor-liquid crystal display, an organic light emitting diode, a flexible display, or a three-dimensional (3D) display.

The touch screen panel 753 may convert a change in capacitance generated by a user's touch to a specific area of the display panel 751 into an electrical input signal. For example, the touch screen panel 753 may include at least one sensing electrode for detecting a user touch.

The touch screen panel 751 and the display panel 753 may be in a separate form or an integrated form.

For example, the touch screen panel may be a plug-in type or an embedded type. In the plug-in type, the touch screen panel may be attached to the outside of the display panel in the form of a film. In the embedded type, the touch screen panel is mounted inside the display panel. For example, the embedded type may include an intra-cell type or an on-cell type.

The sound output module 752 may output audio data received from the wireless communication unit 710 in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like, or output audio data stored in the memory unit 760. The sound output module 752 may include a speaker for outputting sound.

The memory unit 760 may store a program for processing and controlling the controller 780, and temporarily store input/output data (e.g., a phonebook, a message, audio, still images, photographs, or video). For example, the memory unit 760 may store images such as photographs or videos taken by the camera 721.

The interface unit 770 serves as a channel to connect with an external device connected to the terminal 200A. The interface unit 770 receives data from an external device, receives power and transmits power to various components inside the terminal 200A, or transmits data inside the terminal 200A to an external device. For example, the interface unit 770 may include a wired/wireless head-display port, an external charger port, a wired/wireless data port, a memory card port, a port to which a device provided with an identification module is connected, an audio input/output (I/O) port, a video I/O port, a headphone port, and the like.

The controller 780 may control the overall operation of the terminal 200A. For example, the controller 780 may perform control and processing related to voice calls, data communications, video calls, and the like.

The controller 780 may include a multimedia module 781 for playing multimedia. The multimedia module 781 may be implemented within the controller 780 or separately from the controller 780.

The controller 780 may perform a pattern recognition process for recognizing handwriting or drawing input on the touch screen as text and images, respectively.

The power supply unit 790 may receive external power or internal power under the control of the controller 780 and supply power required for the operation of each component.

Embodiments relate to a camera apparatus 100, 100A or 100B located below a display panel 751, and the camera apparatus 100, 100A or 100B may include an optical path changing unit 10 disposed to be spaced apart from the display panel 751 in a vertical direction (e.g., VD 1), a lens module 400 disposed to be spaced apart from the optical path changing unit 10 in a lateral direction (e.g., DL 1), a moving unit 20 for moving the lens module 400 in the lateral direction, an image sensor 70 disposed in parallel with the display panel 751, and a reflecting unit 25 for reflecting light passing through the lens module 400 to the image sensor 70. For example, the optical axis direction of the lens module 400 (or lens) may be parallel to the active area of the display panel 751.

At least a part of the optical path changing unit 10 may overlap the active region in the vertical direction (or the direction perpendicular to the optical axis direction OA). For example, the entire area of the optical path changing unit 10 may overlap with the active area in the vertical direction (or the direction perpendicular to the optical axis direction OA).

At least a portion of the reflection unit 25, 25A, or 25B may overlap the active region in a vertical direction (or a direction perpendicular to the optical axis direction OA). For example, the entire area of the reflection unit 25, 25A, or 25B may overlap with the active area in the vertical direction (or the direction perpendicular to the optical axis direction OA).

At least a portion of the moving unit 20 may overlap the active region in a vertical direction (or a direction perpendicular to the optical axis direction OA). For example, the entire area of the mobile unit 20 may overlap with the active area in the vertical direction (or the direction perpendicular to the optical axis direction OA).

At least a portion of the camera device 100, 100A, or 100B may overlap with the active area of the display panel 751 in the vertical direction (or the direction perpendicular to the optical axis direction OA). For example, at least one of the moving unit 20, the circuit board 80, and the image sensor 70 may overlap with the active area of the display panel 751 in the vertical direction. For example, at least a portion of the image sensor 70 may overlap the active region in the vertical direction. Alternatively, at least a portion of the image sensor 70 may overlap the active region in a direction perpendicular to the display panel 751. At least a portion of the image sensor 70 may be disposed under the active region. For example, the active region may be a display region or a viewing region in which an image is displayed. For example, the active area of the image sensor 70 may be disposed or arranged parallel to the front surface 7A or the rear surface 7B of the display panel 751.

The front surface (or front side) of the optical instrument 200A may include a visible region S1 visible to a user and a non-visible region S2 invisible to the user.

The viewing area S1 may be a display surface on which an image is displayed on the front surface 7A of the display panel 751 so that the user can see the image. Further, a touch surface touched by a user may be included in the viewable area. Further, for example, the invisible area S2 may be an area (e.g., a black area) in which an image that can be recognized by the user is invisible. For example, the non-visible region S2 may be disposed around the active region. For example, the non-visible region S2 may be disposed to surround the active region.

The camera device 100, 100A or 100B may be disposed behind the viewing area S1 of the optical instrument 200A. For example, the camera device 100, 100A, or 100B may not be exposed to the viewing area S1 of the optical instrument 200A. For example, at least a portion of the camera device 100, 100A, or 100B may overlap the viewing area S1 in the vertical direction. Further, the camera device 100, 100A, or 100B may not overlap the non-visible region S2 in the vertical direction or in a direction perpendicular to the front surface 7A of the display panel.

In another embodiment, at least a portion of the camera apparatus 100, 100A or 100B may overlap the non-visible region S2 in a vertical direction or a direction perpendicular to the front surface 7A of the display panel.

The display panel 751 may include an active region including a plurality of pixels. For example, the active region may be included in the visible region S1.

Further, for example, at least a portion of the camera device 100, 100A, or 100B may overlap at least one pixel in the active region of the display panel 751 in the vertical direction. For example, the reflection unit 25, 25A or 25B may overlap at least one pixel in the active region in a vertical direction or a direction perpendicular to the front surface 7A of the display panel. Further, at least one of the moving unit 20, the circuit board 80, and the image sensor 70 may overlap at least one pixel in the active region in a vertical direction or a direction perpendicular to the front surface 7A of the display panel.

For example, the first surface 10A of the optical path changing unit 10 of the camera device may be opposite to the active area of the display panel 751 in the vertical direction or may face the active area of the display panel 751. For example, the first surface 10A of the optical path changing unit 10 of the camera device may be opposite to or may face at least one pixel in the active area of the display panel 751 in the vertical direction.

Since the camera device 100, 100A, or 100B is disposed behind the active area of the display panel 751, in an embodiment, the bezel of the optical instrument 200A can be thinned and the display area (e.g., active area) can be increased. In addition, for example, a speaker of the sound output module 752 may be provided on a side surface of the optical instrument 200A to increase a display area.

Further, in the camera apparatuses 100, 100A, and 100B according to the embodiment, the distance d3 or d4 in the vertical direction between the front surface 7A (or the rear surface 7B) of the display panel 751 and the first surface 10A of the optical path changing unit 10 is constant irrespective of the AF operation.

Therefore, even in the case where the light quantity is reduced due to the touch screen panel 753 and the display panel 751, the light quantity incident on the optical path changing unit 10 can be uniform. According to the embodiment, since the amount of light incident to the camera device is uniform, even in the case where the amount of light is reduced due to the touch screen panel 753 and the display panel 751, the AF operation can be smoothly performed, and the resolution of the camera device is prevented from being lowered.

Although the embodiments have been described above mainly, these are merely illustrative, not restrictive, and those skilled in the art to which the invention pertains will appreciate that various modifications and applications not exemplified above are possible without departing from the essential features of the embodiments. For example, each component specifically described in the embodiments may be implemented by modification. Furthermore, differences relating to such modifications and applications should be construed as being included in the scope of the present invention as defined in the appended claims.

Claims

1. A camera actuator, comprising:

a housing;

a first lens assembly and a second lens assembly configured to move in an optical axis direction based on the housing; and

a drive unit configured to move the first lens assembly and the second lens assembly,

wherein the drive unit comprises a drive coil and a drive magnet facing the drive coil,

wherein the driving coil includes a first pattern region and a second pattern region disposed in a direction perpendicular to the first pattern region, and

wherein the width of the first pattern region is different from the width of the second pattern region.

2. The camera actuator of claim 1, wherein the drive coil comprises:

a third pattern region facing the first pattern region; and

a fourth pattern region facing the second pattern region, an

Wherein the width of the fourth pattern region is greater than the width of the third pattern region.

3. The camera actuator of claim 2, wherein the drive coil includes a curved pattern region connecting the first pattern region with the second pattern region.

4. The camera actuator of claim 3, wherein the curved pattern region comprises a first curved pattern region, a second curved pattern region, a third curved pattern region, and a fourth curved pattern region.

5. The camera actuator of claim 1, wherein the first pattern region has a width that is less than a width of the second pattern region.

6. The camera actuator of claim 1, wherein the driving coil is formed with a plurality of turns.

7. The camera actuator of claim 6, wherein the first pattern region has a width that is less than a width of the second pattern region.

8. The camera actuator of claim 4, wherein the first pattern region is disposed at one side,

wherein the second pattern region is disposed spaced apart from the first pattern region, and

wherein the third pattern region is disposed to be spaced apart from the fourth pattern region.

9. The camera actuator of claim 8, wherein an innermost turn of the plurality of turns of the drive coil has a first point, the first point being one end of any of the first pattern region and the third pattern region,

Wherein an outermost turn of the plurality of turns of the drive coil has a second point that is one end of either of the first pattern region and the third pattern region, and

wherein a virtual line connecting the first point and the second point is inclined at a first angle with respect to the optical axis.

10. The camera actuator of claim 9, wherein the first curved pattern region is a region in which a width of the first curved pattern region changes, and a first angle between a first boundary line in contact with the first pattern region and a second boundary line in contact with the second pattern region is in a range of 20 degrees to 45 degrees.