KR20220003295A - Camera module - Google Patents

Abstract

A light source according to an embodiment of the present invention includes; a light source; an optical unit disposed to be movable in an optical axis direction on the light source; a driving unit moving the optical unit; a housing accommodating the optical unit; and an image sensor. The driving unit may include: a driving magnet portion including a driving coil part disposed opposite to each other inside the housing and at least one magnet; a substrate disposed on the outer surface of the housing; and a control element disposed on the substrate. The housing includes a hole passing through an outer surface and an inner surface of the housing. The control element is disposed in the hole to face the magnet.

Description

Camera Module {CAMERA MODULE}

The embodiment relates to a camera module.

3D contents are being applied in many fields such as education, manufacturing, and autonomous driving as well as games and culture, and depth map is required to acquire 3D contents. Depth information is information indicating a distance in space, and indicates perspective information of one point in a 2D image at another point. As a method of acquiring depth information, a method of projecting IR (Infrared) structured light onto an object, a method using a stereo camera, a Time of Flight (TOF) method, and the like are used.

In the case of the TOF method or the structured light method, light in the infrared wavelength range is used. Recently, attempts have been made to use the infrared wavelength range for biometric authentication. For example, it is known that the shape of the veins spread on the fingers and the like does not change from fetus to life, and varies from person to person. Accordingly, the vein pattern can be identified using the camera device equipped with the infrared light source. To this end, after photographing a finger, each finger may be detected by removing a background based on the color and shape of the finger, and a vein pattern of each finger may be extracted from the detected color information of each finger. That is, the average color of the finger, the color of the veins distributed in the finger, and the color of the wrinkles in the finger may be different from each other. For example, the color of veins distributed on the finger may be weaker than the average color of the finger, and the color of the wrinkles on the finger may be darker than the average color of the finger. Using these features, a value approximating a vein for each pixel can be calculated, and a vein pattern can be extracted using the calculated result. Then, the individual can be identified by comparing the extracted vein pattern of each finger with the pre-registered data.

However, precise adjustment is required to change the pattern of the light source.

An embodiment is to provide a camera device including a driving unit for changing the shape of an optical signal.

The embodiment provides a camera module that easily detects abnormalities such as damage to a lens and a lens module and prevents the human body from being damaged by the energy of an optical signal.

The problem to be solved in the embodiment is not limited thereto, and it will be said that the purpose or effect that can be grasped from the method of solving the problem described below or the embodiment is also included.

A camera module according to an embodiment of the present invention includes a light source; an optical unit disposed to be movable in an optical axis direction on the light source; a driving unit for moving the optical unit; a housing accommodating the optical unit; and an image sensor, wherein the driving unit includes: a driving magnet unit including a driving coil unit disposed to face each other inside the housing and at least one magnet; a substrate disposed on the outer surface of the housing; and a control element disposed on the substrate, wherein the housing includes a hole passing through an outer surface and an inner surface of the housing, and the control element is disposed in the hole to face the magnet.

The control element may be disposed below the lowermost end of the driving coil unit.

The control element may not overlap the driving coil unit in a direction perpendicular to the optical axis direction.

The control element may be formed integrally with the substrate.

The driving coil unit may overlap the driving magnet unit in a direction perpendicular to the optical axis direction even when the driving magnet unit is moved.

The control element may at least partially overlap the driving coil unit in the optical axis direction.

An adhesive member may be positioned between the driving coil unit and the control element.

The control element may overlap the driving magnet unit in a direction perpendicular to the optical axis direction when the optical unit moves in the optical axis direction.

The driving coil unit may have a closed loop shape and may surround the driving magnet unit.

A thickness of the driving coil unit may be smaller than a thickness of the driving magnet unit.

The driving magnet unit includes a first magnet area; and a second magnet region positioned below the first magnet region, wherein the first center of the driving coil unit may move along the first magnet region.

The optical unit includes a lens barrel; and at least one lens disposed in the lens barrel.

It may further include an elastic part connecting the housing and the optical part.

The elastic part may include: a first elastic member disposed on the lens barrel; and a second elastic member disposed under the lens barrel.

The first elastic member may include a first elastic coupling part; a second elastic coupling part disposed outside the first elastic coupling part; and a first pattern part disposed between the first elastic coupling part and the second elastic coupling part, wherein the second elastic member includes: a third elastic coupling part; a fourth elastic coupling part disposed outside the third elastic coupling part; and a second pattern part disposed between the third elastic coupling part and the fourth elastic coupling part.

It may further include a damping member disposed on the first pattern portion and the second pattern portion.

The damping member may be disposed adjacent to the first elastic coupling part, the second elastic coupling part, the third elastic coupling part, or the fourth elastic coupling part.

The first pattern portion may be symmetrical with respect to a first diagonal line and a second diagonal line, and the second pattern portion may be symmetrical with respect to a third diagonal line and a fourth diagonal line.

According to the embodiment, by changing the optical pattern of the optical signal or the optical signal according to various variables such as a distance to an object and a resolution, it can be flexibly driven according to the needs of various applications.

In addition, according to the embodiment, it is possible to easily detect abnormalities such as damage to the lens and the lens module to prevent damage to the human body or the like by the energy of the optical signal.

According to the embodiment, power consumption may be reduced.

Various and advantageous advantages and effects of the present invention are not limited to the above, and will be more easily understood in the course of describing specific embodiments of the present invention.

1 is a perspective view of a camera module according to an embodiment;
Figure 2 is a cross-sectional view taken along line AA' in Figure 1,
3 is an exploded perspective view of a camera module according to an embodiment;
4 is a perspective view illustrating a housing of a light emitting unit according to an embodiment;
5 is a top view of the housing of the light emitting unit according to the embodiment;
6 is another perspective view of the housing of the light emitting unit according to the embodiment;
7 is a view showing a first optical unit and a first lens barrel of a light emitting unit according to an embodiment;
8 is a perspective view of a first lens barrel of a light emitting unit according to an embodiment;
9 is a cross-sectional view of a first lens barrel, a housing, and a driving coil part of the light emitting part according to the embodiment;
10 is a view showing a driving magnet unit and a driving coil unit of the light emitting unit according to the embodiment;
11 is a view for explaining the driving of the driving magnet unit and the driving coil unit of the light emitting unit according to the embodiment;
12 is a top view of a driving magnet unit, a driving coil unit, a side substrate, and a control element of the light emitting unit according to the embodiment;
13 is a view for explaining the positional relationship between the driving coil unit and the driving magnet unit according to the embodiment;
14 is a view showing one side of the side substrate of the light emitting unit according to the embodiment;
15 is a view showing the other side of the side substrate of the light emitting unit according to the embodiment,
16 is a top view of a first lens barrel, a driving magnet part, a driving coil part, a housing, a side substrate, and a control element of the light emitting part according to the embodiment;
17 is a cross-sectional view taken along ZZ' in FIG. 16;
18 is a cross-sectional view taken along QQ' in FIG. 16;
19 is a cross-sectional view taken along line YY' in FIG. 16;
20 is a view showing a first elastic member of the light emitting part according to the embodiment,
21 is a view showing the coupling of the first elastic member of the light emitting part according to the embodiment,
22 is a view showing a second elastic member of the light emitting part according to the embodiment;
23 is a view showing the coupling of the light emitting part and the second elastic member according to the embodiment;
24 is a view showing the base of the camera module according to the embodiment,
25 is a view showing a second optical unit and a second lens barrel of the light receiving unit according to the embodiment;
26 is a view showing a cover of a camera module according to an embodiment;
27 is a view for explaining the movement of the first optical unit and the first lens module in the light emitting unit according to the embodiment,
28 is a view for explaining the optical signal shape according to the movement of the first optical unit and the first lens module,
29 is a view showing an example of an image of the light receiving unit according to the movement of the first optical unit and the first lens module,
30 is a diagram illustrating an optical device including a camera module according to an embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical spirit of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and within the scope of the technical spirit of the present invention, one or more of the components may be selected between the embodiments. It can be combined and substituted for use.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be generally understood by those of ordinary skill in the art to which the present invention belongs, unless specifically defined and described explicitly. It may be interpreted as a meaning, and generally used terms such as terms defined in advance may be interpreted in consideration of the contextual meaning of the related art.

In addition, the terminology used in the embodiments of the present invention is for describing the embodiments and is not intended to limit the present invention.

In this specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as “at least one (or more than one) of A and (and) B, C”, it is combined with A, B, and C It may include one or more of all possible combinations.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used.

These terms are only for distinguishing the component from other components, and are not limited to the essence, order, or order of the component by the term.

And, when it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also with the component It may also include a case of 'connected', 'coupled' or 'connected' due to another element between the other elements.

In addition, when it is described as being formed or disposed on “above (above) or under (below)” of each component, the top (above) or bottom (below) is one as well as when two components are in direct contact with each other. Also includes a case in which another component as described above is formed or disposed between two components. In addition, when expressed as “upper (upper) or lower (lower)”, the meaning of not only the upward direction but also the downward direction based on one component may be included.

Hereinafter, an optical device according to the present embodiment will be described.

The optical device is any one of a cell phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and a navigation device may include However, the type of optical device is not limited thereto, and any device for taking an image or photo may be included in the optical device.

The optical device may include a body. The body may be in the form of a bar. Alternatively, the main body may have various structures such as a slide type, a folder type, a swing type, a swivel type, in which two or more sub-bodies are coupled to be relatively movable. The body may include a case (casing, housing, cover) forming an exterior. For example, the body may include a front case and a rear case. Various electronic components of an optical device may be embedded in a space formed between the front case and the rear case.

The optics may include a display. The display may be disposed on one surface of the main body of the optical device. The display may output an image. The display may output an image captured by the camera.

The optics may include a camera. The camera may include a Time of Flight (ToF) camera device. The ToF camera device may be disposed on the front side of the main body of the optics. In this case, the ToF camera device may be used for various types of biometric recognition such as a user's face recognition and iris recognition for security authentication of an optical device.

Hereinafter, the configuration of the ToF camera device according to the present embodiment will be described with reference to the drawings.

1 is a perspective view of a camera module according to an embodiment, FIG. 2 is a cross-sectional view taken along line AA′ in FIG. 1 , and FIG. 3 is an exploded perspective view of the camera module according to the embodiment.

1 to 3 , the camera module 10 according to the embodiment includes a light emitting unit 1 , a light receiving unit 2 , a connect unit 3 , a main board 4 , an extension board 5 , and a connection board. (6) and a connector (7). And the camera module 10 according to the embodiment may include a control unit CT. The control unit CT may be located on any one of the light emitting unit 1 , the light receiving unit 2 , the connect unit 3 , and the main board 4 . In addition, in the present specification, the camera module may be a concept having only one of the light emitting unit 1 and the light receiving unit 2 . Alternatively, the camera module may be a concept including a substrate (eg, the main substrate 4) electrically connected to any one of the light emitting unit 1 and the light receiving unit 2 .

First, the light emitting unit 1 may be a light emitting module, a light emitting unit, a light emitting assembly, or a light emitting device. The light emitting unit 1 may generate light or an optical signal and then irradiate it to the object. Hereinafter, optical or optical signals are used interchangeably. In this case, the light emitting unit 1 may generate and output an optical signal in the form of a pulse wave or a continuous wave. The continuous wave may be in the form of a sinusoid wave or a square wave.

And by generating the optical signal in the form of a pulse wave or a continuous wave, for example, the ToF camera device is inputted to the light receiving unit 2 of the ToF camera device after the optical signal output from the light emitting unit 1 and the optical signal are reflected from the object O It is possible to detect the phase difference between the input lights. In this specification, the output light refers to an optical signal output from the light emitting unit 1 and incident on the object O, and the input light or reflected light is output from the light emitting unit 1 and reaches the object O to reach the object ( It may mean an optical signal that is reflected from O) and then input to the ToF camera device. Also, from the viewpoint of the object O, the output light may be incident light, and the input light may be reflected light.

The light emitting unit 1 irradiates the generated optical signal to the object O for a predetermined exposure period (integration time). Here, the exposure period means one frame period. In the case of generating a plurality of frames, the set exposure cycle is repeated. For example, when the ToF camera device captures an object at 20 FPS, the exposure period is 1/20 [sec]. And when 100 frames are generated, the exposure cycle may be repeated 100 times. Accordingly, the light source may also be emitted in a frame period.

Also, the light emitting unit 1 may generate a plurality of optical signals having different frequencies. The light emitting unit 1 may sequentially and repeatedly generate a plurality of optical signals having different frequencies. Alternatively, the light emitting unit 1 may simultaneously generate a plurality of optical signals having different frequencies.

The light emitting unit 1 may include a light source LS. The light source LS may generate light. The light source LS may output light. The light source LS may irradiate light. The light generated by the light source LS may be infrared rays having a wavelength of 770 nm to 3000 nm. Alternatively, the light generated by the light source LS may be visible light having a wavelength of 380 nm to 770 nm. The light source LS may include all of various elements that generate and output light. For example, the light source LS may include a Light Emitting Diode (LED) and a Vertical Cavity Surface Emitting Laser (VCSEL). For example, when the light source LS is a vertical resonance surface emitting laser, a plurality of emitters may be arranged in a horizontal or vertical direction on a plane perpendicular to an optical axis. Furthermore, when light is output in the form of dots, the form of dots may correspond to the form in which the emitters are arranged. For example, when the emitter is 3X3 (width X length), the luminance in the form of dots may be 3X3.

Also, the light source LS may include a plurality of light emitting diodes arranged according to a predetermined pattern. In addition, the light source LS may include an organic light emitting diode (OLED) or a laser diode (LD).

The light emitting unit 1 may include a light modulator for modulating light. The light source LS may generate an optical signal in the form of a pulse wave or a continuous wave by repeating flickering (on/off) at regular time intervals. The predetermined time interval may be a frequency of an optical signal. The blinking of the light source LS may be controlled by the light modulator. The light modulator may control the blinking of the light source LS so that the light source LS generates an optical signal in the form of a continuous wave or a pulse wave. The light modulator may control the light source LS to generate an optical signal in the form of a continuous wave or a pulse wave through frequency modulation, pulse modulation, or the like. The light modulator may be located in the control unit. Accordingly, it should be understood that the controller can block (off or turn off) or provide (on) the output of the optical signal by the light source by controlling the light modulator, as will be described later.

The light emitting unit 1 may include a diffuser (not shown). The diffuser (not shown) may be a diffuser lens. A diffuser (not shown) may be disposed in front of the light source LS. Light emitted from the light source LS may pass through a diffuser (not shown) to be incident on the object O. The diffuser (not shown) may change the path of the light emitted from the light source LS. A diffuser (not shown) may diffuse the light emitted from the light source LS. A diffuser (not shown) may be located in a first optical unit to be described later.

Specifically, the light emitting unit 1 includes the above-described light source LS, the housing 110 , the first optical unit 120 , the first lens barrel 130 , the driving magnet unit 140 and the driving coil unit 150 . It may include a driving unit including a driving unit, an elastic unit 160 , a side substrate 170 , and a control element SS.

First, the housing 110 may be located inside the cover 400 to be described later. The housing 110 may be coupled to a first lens barrel 130 , a side substrate 170 , a driving coil unit 150 , and an elastic unit 160 to be described later.

The housing 110 may include a barrel accommodating part opened therein. The above-described first lens barrel 130 and the driving coil unit 150 may be located in the barrel receiving unit.

The first optical unit 120 may be located in the housing 110 . The first optical unit 120 may be held by a first lens barrel 130 to be described later, and may be coupled to the housing 110 through the first lens barrel 130 .

The first optical unit 120 may include a plurality of optical elements or lenses. For example, the first optical unit 120 may include a plurality of lenses.

Also, the first optical unit 120 may include a collimator lens. For example, the collimator lens may include a plurality of lenses, and may have an angle of view (FoI) of 60 degrees to 120 degrees. Such a collimator lens may lower the divergence angle of light output from the light source. When the laser divergence angle of each aperture of the vertical resonance surface emitting laser (VCESL) as the light source is 20 to 25 degrees, the divergence angle of the light passing through the collimator lens may be 1 degree or less.

In addition, the first optical unit 120 may duplicate the optical signal output from the light source LS according to a preset replication pattern. Accordingly, the first optical unit 120 may include a diffractive optical element (DOE) or a diffuser lens. For example, the first optical unit 120 may include an optical member having a micro-scale or nano-scale structure.

An optical signal (output light) emitted from the light source LS toward the object may pass through the first lens barrel 130 . The optical axis of the first lens barrel 130 and the optical axis of the light source LS may be aligned. Also, the first lens barrel 130 may be coupled to the housing 110 . In addition, the first lens barrel 130 may be fixed to the housing 110 . The first lens barrel 130 may hold the first optical unit 120 made of a plurality of optical elements.

The first lens barrel 130 may include a lens accommodating part 131 on which the first optical part 120 is seated. The first lens barrel 130 may be moved up and down by a voice coil motor or the like, as will be described later. That is, the first lens barrel 130 may vertically move along the optical axis direction by an actuator such as a voice coil motor. Accordingly, as will be described later, the light generated from the light source may be changed into a planar shape or a dotted shape while passing through the first lens barrel 130 . In addition, the first lens barrel 130 may include a magnet receiving groove 132 in which the driving magnet unit is seated.

In addition, a screw thread structure may be formed on a side surface of the lens accommodating part 131 for coupling with the first optical part 120 . Accordingly, the first optical unit 120 may move up and down in the housing 110 together with the first lens barrel 130 by a driving unit to be described later.

In addition, the side substrate 170 may be coupled to the housing 110 . The side substrate 170 may be located in the substrate groove 112 located on the side of the housing 110 . In addition, the side substrate 170 may be electrically connected to the main substrate 4 .

Also, the driving unit may include a driving magnet unit 140 and a driving coil unit 150 .

The driving magnet unit 140 may include a plurality of magnets. The plurality of magnets may be located in the magnet seating groove 132 located on the side of the first lens barrel 130 .

The driving magnet unit 140 may vertically move the first lens barrel 130 and the first optical unit 120 with respect to the housing 110 by electromagnetic interaction with the driving coil unit 150 to be described later. Accordingly, the separation distance from the lower light source LS to the first optical unit 120 and the first lens barrel 130 may be increased or decreased. And, according to the above-described separation distance, the output light may have a light source shape of a planar shape (or a planar light source) or a dot shape (or a point shape light source, a dot pattern) with respect to an object.

The driving coil unit 150 includes a plurality of coils and may be located on a side surface of the housing 110 . Also, the driving coil unit 150 may be located inside the housing 110 . The driving coil unit 150 may be positioned to face the driving magnet unit 140 . Accordingly, when current is injected into the driving coil unit 150 , the first lens barrel 130 may move due to electromagnetic interaction (eg, Lorentz force) between the driving coil unit 150 and the driving magnet unit 140 . .

The driving coil unit 150 may be located in each coil receiving unit 114 formed on the side surface of the housing 110 . The driving coil unit 150 may be electrically connected to the side substrate 170 . For example, the driving coil unit 150 may be electrically connected to the side substrate 170 through a wire or the like. And, since the side substrate 170 is coupled to the housing 110 as described above, the driving coil unit 150 may also be seated in the coil receiving unit 114 formed on the side of the housing 110 to be coupled to the housing. A detailed description thereof will be given later.

The elastic part 160 may be disposed on the housing 110 . The elastic part 160 may be coupled to the first lens barrel 130 and the housing 110 . The housing 110 may be fixedly coupled to the main board 4 or the base 200 to be described later. Alternatively, the first lens barrel 130 may move up and down with respect to the housing 110 by the Lorentz force described above. The elastic unit 160 may provide a preload for the vertical movement of the first lens barrel 130 or the first optical unit 120 . Accordingly, when the Lorentz force by the driving unit does not occur, the first lens barrel 130 may maintain a predetermined position with respect to the housing 110 . In addition, even when Lorentz force is generated by the driving unit, since the positional relationship between the first lens barrel 130 and the housing 110 is maintained within a predetermined range, the reliability of the camera module may be improved.

The control element SS may be electrically connected to the side substrate 170 . Also, the control element SS may be positioned on the side substrate 170 . In addition, the control element SS may be disposed to be spaced apart from the driving magnet unit 140 by a predetermined distance.

The control element SS may include a Hall sensor or a Hall IC. The control element SS may sense the magnetic force of the driving magnet unit 140 .

The control element SS according to the embodiment may sense the magnetic field strength from the driving magnet unit to output position information about the light source LS of the first lens barrel 130 or the first optical unit 120 . Accordingly, the control unit determines the defect of the first optical unit 120 or the first lens barrel 130 based on the position information of the control element SS and controls the output of the light source LS in response to the determination result ( can be turned on/off).

In an embodiment, the control element SS may include a plurality of control elements. The control element SS may include two sensors. The control element SS may detect movement of the first lens barrel 130 and the first optical unit 120 in the optical axis direction. In this specification, the Z-axis direction is an optical axis direction or a vertical direction as the third direction. In addition, the X-axis direction is a direction perpendicular to the Z-axis direction and is a first direction from the light emitting unit to the light receiving unit in the embodiment. And the Y-axis direction is a direction perpendicular to the X-axis direction and the Z-axis direction, and is a second direction. It will be described below based on this.

The light receiving unit 2 may be a light receiving module, a light receiving unit, a light receiving assembly, or a light receiving device, and may be a component of a camera module. The light receiving unit 2 may receive light (reflected light) emitted from the light emitting unit 1 and reflected from the object, and may convert the received light into an electrical signal.

The light receiving unit 2 may generate input light corresponding to the light signal output from the light emitting unit 1 . The light receiving unit 2 may be disposed side by side with the light emitting unit 1 . The light receiving unit 2 may be disposed next to the light emitting unit 1 . The light receiving unit 2 may be disposed in the same direction as the light emitting unit 1 . With this configuration, the reception efficiency of the input light in the light receiving unit 2 can be improved.

The light receiving unit 2 may receive the reflected light during the exposure period and generate an electric signal therefor. In an embodiment, the camera module may perform direct distance measurement or indirect distance measurement through the light receiving unit 2 .

First, in the case of direct distance measurement, the camera module may measure the distance to the object through a time difference between a reception time of reflected light and an output time of output light.

And in the case of non-direct distance measurement, the camera module may measure the distance to the object through synthesis between the reference signal and the reflected light synchronized with the output light and having different phases.

Direct distance measurement is easier to measure at a distance compared to non-direct distance measurement, the switching speed is nanoseconds, so the measurement speed can be relatively fast, and it is strong against multiple echoes. In contrast, non-direct distance measurement has a slower switching speed compared to direct distance measurement, but it is easy to measure close range, can be applied to multiple pixels, and has the advantage of small data volume for distance measurement.

In another embodiment, the camera module performs the above-described direct time-of-flight (direct-TOF) (or corresponding to direct distance measurement) or indirect-TOF (or corresponding to non-direct distance measurement). can do.

The light receiving unit 2 may include a second lens barrel 320 , a second optical unit 310 , and an image sensor IS.

The second lens barrel 320 may be coupled to a base 200 to be described later. The second lens barrel 320 may be coupled to a base to be described later by screw coupling or the like. Accordingly, the second lens barrel 320 may include a screw thread located on the side. The second lens barrel 320 may be formed integrally with the second optical unit 310 . However, the present invention is not limited thereto.

The second optical unit 310 may be coupled to the second lens barrel 320 . The second optical unit 310 may be coupled to the base 200 through the second lens barrel 320 . The second optical unit 310 may be coupled to the second lens barrel 320 through various coupling methods. The second optical unit 310 may be formed through screw coupling with the second lens barrel 320 as described above.

The second optical unit 310 may include a plurality of lenses. In addition, the second optical unit 310 may be aligned with the image sensor IS below it. Accordingly, the reflected light passing through the second optical unit 310 may be received by the image sensor IS.

The image sensor IS may detect reflected light. In addition, the image sensor IS may detect the reflected light and output it as an electrical signal. In an embodiment, the image sensor IS may detect light having a wavelength corresponding to the wavelength of light output from the light source LS. For example, the image sensor IS may detect infrared rays. Alternatively, the image sensor IS may detect visible light. The image sensor IS may include various image sensors that sense light.

In an embodiment, the image sensor IS receives the light passing through the second lens barrel 320 and the second optical unit 310 and converts it into an electrical signal corresponding to the light, a plurality of pixels included in the pixel array. It may include a driving circuit for driving the pixels and a readout circuit for reading an analog pixel signal of each pixel. The readout circuit may generate a digital pixel signal (or an image signal) through analog-to-digital conversion by comparing the analog pixel signal with a reference signal. Here, the digital pixel signal of each pixel included in the pixel array constitutes an image signal, and as the image signal is transmitted in units of frames, it may be defined as an image frame. That is, the image sensor may output a plurality of image frames.

Furthermore, the light receiving unit 2 may further include an image combining unit. The image synthesizing unit may include an image processor that receives an image signal from the image sensor IS and processes the image signal (eg, interpolation, frame synthesis, etc.). In particular, the image synthesizing unit may combine image signals (low resolution) of a plurality of frames into an image signal (high resolution) of one frame. That is, the image synthesizing unit may synthesize a plurality of image frames included in the image signal received from the image sensor IS, and generate the synthesized result as a composite image. The composite image generated by the image synthesizing unit may have a higher resolution than a plurality of image frames output from the image sensor IS. That is, the image synthesizing unit may generate a high-resolution image through a super resolution (SR) technique. The plurality of image frames may include image frames generated by changing different optical paths by movement of the filters F and F'. Such an image synthesizing unit may be located inside or outside the light receiving unit 2 .

The filters F and F' may be coupled to the base 200 . The filters F and F' may be disposed between the first lens barrel 130 and the light source LS or between the second lens barrel 320 and the image sensor IS. Accordingly, the filters F and F' may be disposed on the optical path between the object and the image sensor IS or the optical path between the object and the light source LS. The filters F and F' may filter light having a predetermined wavelength range.

The filters F and F' can pass light of a specific wavelength. That is, the filters F and F' may block by reflecting or absorbing light other than a specific wavelength. For example, the filters F and F' may pass infrared rays and block light of wavelengths other than infrared rays. Alternatively, the filters F and F' may pass visible light and block light of a wavelength other than visible light. The filters F and F' may be infrared rays band pass filters. Accordingly, the filters F and F' can pass only infrared light. Alternatively, the optical member may be a separate focus fixed lens or a variable focus lens (ex: liquid lens) separated from the lens module.

Also, the filters F and F' are movable. In an embodiment, the filters F and F' may be tilted. When the filters F and F' are tilted, the optical path can be adjusted. When the filters F and F' are tilted, the path of light incident to the image sensor IS may be changed. For example, the filter F' in the light receiving unit 2 may change a field of view (FOV) angle or a direction of the FOV of the incident light. In addition, in the embodiment, as the filters F and F' are tilted obliquely, a path through which light enters may be changed to enable high-resolution Time of Flight (ToF).

The cover 400 may be a bracket. The cover 400 may include a 'cover can'. The cover 400 may be disposed to surround the light emitting unit 1 and the light receiving unit 2 . The cover 400 may be coupled to the housing 110 and the base 200 . The cover 400 may accommodate the light emitting unit 1 and the light receiving unit 2 . Accordingly, the cover 400 may be located at the outermost side of the camera module.

In addition, the cover 400 may be a non-magnetic material. In addition, the cover 400 may be formed of a metal. Also, the cover 400 may be formed of a metal plate.

The cover 400 may be connected to the ground portion of the main board 4 . Through this, the cover 400 may be grounded. And the cover 400 may block electromagnetic interference (EMI). In this case, the cover 400 may be referred to as an 'EMI shield can'. The cover 400 is a finally assembled component and may protect the product from external impact. The cover 400 may be formed of a material having a thin thickness and high strength.

In addition, in the camera module 10 according to the embodiment, the light emitting unit 1 and the light receiving unit 2 may be disposed on the main board 4 (PCB, Printed Circuit Board). The main substrate 4 may be electrically connected to the light emitting unit 1 and the light receiving unit 2 .

Also, in the camera module 10 , the connector 3 may be electrically connected to the main board 4 . The connecting unit 3 may be connected to the configuration of the optical device. The connector 3 may include a connector 7 that is connected to the configuration of the optical device. The connector part 3 may include an extension board 5 on which the connector 7 is disposed and connected to the connection board 6 . The extension substrate 5 may be a PCB, but is not limited thereto.

In addition, in the camera module, the connection board 6 may connect the main board 4 and the extension board 5 of the connector 3 . The connecting substrate 6 may have flexibility. The connection board 6 may be a flexible printed circuit board (FPCB, Flexible PCB).

In addition, the main substrate 4, the connection substrate 6, and the extension substrate 5 may be formed integrally or separately.

The camera module may include a reinforcing plate 8 . The reinforcing plate 8 may include a stiffener. The reinforcing plate 8 may be disposed on a lower surface of the main substrate 4 . The reinforcing plate 8 may be formed of SUS.

Furthermore, the light receiving unit 2 may include a lens driving device. That is, the light receiving unit 2 may include a voice coil motor (VCM). In addition, the light receiving unit 2 may include a lens driving motor. In addition, the light receiving unit 2 may include a lens driving actuator. With this configuration, as described above, the light receiving unit 2 according to the embodiment can tilt the filter F′. And as the filter F' is tilted, the optical path of the input light passing through the filters F and F' may move repeatedly according to a predetermined rule. Accordingly, the light receiving unit 2 outputs high-resolution image information using a plurality of image information converted by the image sensor according to the tilt of the filter F', and the output image information may be provided to an external optical device. .

4 is a perspective view illustrating a housing of the light emitting unit according to the embodiment, FIG. 5 is a top view of the housing of the light emitting unit according to the embodiment, and FIG. 6 is another perspective view of the housing of the light emitting unit according to the embodiment.

4 to 6 , the housing 110 of the light emitting part according to the embodiment includes a housing hole 111 , a substrate groove 112 , a hole 113 , a coil seating part 114 , and a seating protrusion 115 . may include

The housing hole 111 may be located in the center of the housing 110 . The first optical unit, the first lens barrel, and the driving unit may be seated in the housing hole 111 .

In an embodiment, the housing 110 may include a first housing side 110k1 , a second housing side 110k2 , a third housing side 110k3 , and a fourth housing side 110k4 . The first housing side portion 110k1 to the fourth housing side portion 110k4 refer to portions positioned on each side of the housing 110 .

Specifically, the first housing side portion 110k1 and the second housing side portion 110k2 may be disposed to face each other. In addition, the first housing side part 110k1 and the second housing side part 110k2 may be spaced apart from each other in the second direction (Y-axis direction). That is, the first housing side part 110k1 and the second housing side part 110k2 may be symmetrically disposed in the first direction (X-axis direction) or in the third direction (Z-axis direction).

The third housing side portion 110k3 and the fourth housing side portion 110k4 may be disposed to face each other. Also, the third housing side 110k3 and the fourth housing side 110k4 may be positioned between the first housing side 110k1 and the second housing side 110k2 . In addition, the third housing side part 110k3 and the fourth housing side part 110k4 may be spaced apart from each other in the first direction (X-axis direction). That is, the third housing side part 110k3 and the fourth housing side part 110k4 may be symmetrically disposed in the second direction (Y-axis direction) or the third direction (Z-axis direction).

In an embodiment, the substrate groove 112 may be located on a side of the housing 110 having a maximum separation distance from the light receiving part. Accordingly, the substrate groove 112 may be located in the third housing side 110k4 of the housing 110 . With this configuration, the influence of electromagnetic waves generated by an electrical signal or the like in the light receiving unit on driving the light emitting unit can be minimized.

In an embodiment, the housing 110 may have a rectangular shape on a plane XY. However, the present invention is not limited thereto and may be formed in various shapes.

In addition, a coupling protrusion for coupling with the side substrate may be positioned in the substrate groove 112 . The coupling protrusion may extend outward from the outer surface of the third housing side 110k3 of the housing 110 . In addition, a coupling hole is provided in the side substrate, and the coupling protrusion is inserted into the coupling hole so that the side substrate and the housing 110 can be coupled to each other.

The hole 113 may overlap the substrate groove 112 in a first direction (X-axis direction) and a second direction (Y-axis direction).

In an embodiment, the hole 113 may pass through the outer surface 110b and the inner surface 110a of the housing. Accordingly, the hole 113 may be located in the third housing side 110k3. The hole 113 may be located below the seating part 114 to be described later. Accordingly, even if the control element is seated in the hole 113 , it may not overlap the driving coil unit in the first direction (X-axis direction) or the second direction (Y-axis direction). In addition, while the control element is disposed to face the magnet in the hole 113 , it may be easily electrically connected to the side substrate. In addition, the position of the control element coupled to the housing 110 is fixed, so that the position of the driving magnet unit can be accurately measured.

The coil receiving part 114 may be located on the inner surface 110a of the housing 110 . In an embodiment, the coil receiving part 114 may extend inward from the inner surface 110a of the housing 110 . Accordingly, the maximum separation distance W1 facing the inner surface 110a of the housing 110 may be greater than the maximum separation distance W2 facing the coil receiving unit 114 . And in this specification, the inner side may be a direction toward the central axis HX of the housing hole 111 . Alternatively, it may be a direction from the housing toward the first optical unit. And the outer side may be a direction from the first optical unit toward the housing in the opposite direction to the inner side. The central axis HX of the housing hole 111 passes through the intersection of the bisectors that bisect the housing 110 in the first direction (X-axis direction) and the second direction (Y-axis direction), and in the third direction (Y-axis direction) ) may be parallel to the axis.

Also, at least one groove IH may be positioned on the inner surface 110a of the housing 110 . An adhesive member such as epoxy may be applied to the at least one groove IH. Through this, coupling between the coil on the coil receiving part 114 and the housing 110 may be achieved.

Also, the upper surface of the coil receiving unit 114 may be flat. Accordingly, the driving coil unit may be easily seated, and vertical movement of the first lens barrel may be accurately performed according to electromagnetic interaction between the driving coil unit and the driving magnet.

In addition, the coil seating portion 114 may include a seating groove 114h that is convex toward the bottom (or concave toward the top) at the third housing side 110k3 . The seating groove 114h may be positioned to correspond to the hole 113 described above, and may be a groove formed downward from the coil seating part 114 . The seating groove 114h may be convex toward the bottom and concave toward the top.

A control element to be described later may be seated in the seating groove 114h. Accordingly, the control element may at least partially overlap the driving coil unit in the third direction (Z-axis direction). A detailed description thereof will be given later.

Also, the driving coil unit may have a closed loop shape as will be described later. Accordingly, the coil seating part 114 may also have a closed loop shape corresponding to the shape of the driving coil part.

The mounting protrusion 115 may be connected to the coil receiving unit 114 and located inside the coil receiving unit 114 . Accordingly, since the seating protrusion 115 is located inside the coil receiving unit 114 , it may at least partially overlap the first lens barrel located inside the coil receiving unit 114 . Accordingly, further, the seating protrusion 115 may serve as a stopper for vertical movement of the first lens barrel.

In addition, the upper surface 115a of the seating protrusion 115 may have a step difference from the coil seating part 114 . That is, the upper surface 115a of the seating protrusion 115 may be located above the coil seating part 114 . With this configuration, the seating protrusion 115 can easily prevent the driving coil unit from being deviating from the coil seating unit 114 .

For example, the coil receiving part 114 may be formed of a chin extending inward from the inner surface of the housing 110 . In this specification, the inner side may be a direction from the housing toward the first optical unit, and the outer side may be a direction from the first optical unit toward the housing in a direction opposite to the inner side.

7 is a view showing a first optical unit and a first lens barrel of the light emitting unit according to the embodiment, FIG. 8 is a perspective view of the first lens barrel of the light emitting unit according to the embodiment, and FIG. 9 is a light emitting unit according to the embodiment. It is a cross-sectional view of a first lens barrel, a housing, and a driving coil part.

7 to 8 , the first optical unit 120 of the light emitting unit may be inserted into the lens receiving unit 131 of the first lens barrel 130 . As described above, the first optical unit 120 may include a plurality of lenses. And the first optical unit 120 may include a screw thread located on the outer surface. The first lens barrel 130 may also have a screw groove corresponding to the screw thread of the first optical unit 120 on the inner surface. Accordingly, the first optical unit 120 and the first lens barrel 130 may be screw-coupled to each other.

In an embodiment, the first lens barrel 130 may include not only the above-described lens accommodating part 131 , but also magnet seating grooves 132h1 to 132h4 . The magnet seating grooves 132h1 to 132h4 may be plural. In an embodiment, the number of magnet seating grooves is four, and may be located on each outer surface of the first lens barrel 130 .

In an embodiment, the first lens barrel 130 is disposed between the first outer surface 132a and the second outer surface 132b facing each other, and the first outer surface 132a and the second outer surface 132b facing each other. It may be located on the third outer surface (132c) and the fourth outer surface (132d) located in the.

And the first outer surface 132a faces the first housing side, the second outer surface 132b faces the second housing side, and the third outer surface 132c faces the third housing Opposite the side, the fourth outer surface 132d may face the above-described fourth housing side.

In addition, the plurality of magnet seating grooves may include a first magnet seating groove 132h1 to a fourth magnet seating groove 132h4. The first magnet seating groove 132h1 may be located on the first outer surface 132a. And the second magnet seating groove (132h2) may be located on the second outer surface (132b). In addition, the third magnet seating groove 132h3 may be located on the third outer surface 132c. And the fourth magnet seating groove (132h4) may be located on the fourth outer surface (132d).

A magnet of a driving magnet unit to be described later may be seated in each of the first magnet seating grooves 132h1 to the fourth magnet seating grooves 132h4.

In addition, the first magnet seating groove 132h1 and the second magnet seating groove 132h2 may face each other, and the third magnet seating groove h3 and the fourth magnet seating groove 132h4 may be positioned to face each other. Furthermore, the first magnet seating groove 132h1 to the fourth magnet seating groove 132h4 may have the same shape. With this configuration, electromagnetic force generated by the magnet seated in the magnet seating groove is constantly generated upward or downward, so that the movement of the first lens barrel upward or downward can be performed in a balanced manner without being inclined to one side.

According to an embodiment, the area (on the XZ or YZ plane) of the first magnet seating groove 132h1 to the fourth magnet seating groove 132h4 may decrease toward the outside. In addition, the length L1 of the first magnet seating groove 132h1 to the fourth magnet seating groove 132h4 at the outermost side may be smaller than the length L2 at the innermost side. With this configuration, a phenomenon in which each of the plurality of magnets, which will be described later, is separated from the first magnet seating groove 132h1 to the fourth magnet seating groove 132h4 can be suppressed. In other words, the coupling force between the plurality of magnets and the plurality of magnet seating grooves may be improved.

Furthermore, the first lens barrel according to the embodiment may further include an injection hole eh positioned under the first magnet seating groove 132h1 to the fourth magnet seating groove 132h4. The injection hole eh may be located under the first magnet seating groove 132h1 to the fourth magnet seating groove 132h4. For example, the injection hole eh may be located at the bottom of the first magnet seating groove 132h1 to the fourth magnet seating groove 132h4. In addition, the injection hole eh may be positioned to overlap the first magnet seating groove 132h1 to the fourth magnet seating groove 132h4 in the third direction (Z-axis direction). Accordingly, when the bonding member is injected through the injection hole eh, the bonding member may move between the magnet seating groove and the magnet. That is, the bonding member may be spread over the entire area between the magnet and the magnet seating groove through injection pressure and capillary action. Accordingly, the coupling force between the magnet and the magnet seating groove is further improved, so that the magnet can be prevented from being separated from the magnet seating groove.

Also, a barrel groove gr may be positioned between the magnet seating grooves adjacent to each other in the first magnet seating groove 132h1 to the fourth magnet seating groove 132h4. According to an embodiment, the barrel groove gr may be positioned on the first virtual line VX1 and the second virtual line VX2. In addition, the barrel groove gr may be bisected by the first virtual line VX1 and the second virtual line VX2 .

In addition, in the embodiment, the first virtual line VX1 bisects the second magnet seating groove 123h2 and the fourth magnet seating groove 132h4, and the first magnet seating groove 132h1 and the third magnet seating groove 132h3 ) is halved. And the second virtual line VX2 bisects the first magnet seating groove 132h1 and the fourth magnet seating groove 132h4, and divides the third magnet seating groove 132h3 and the second magnet seating groove 132h2 in half. can In addition, the intersection of the first virtual line VX1 and the second virtual line VX2 may be located on the central axis HX of the above-described housing hole.

The barrel groove gr may be located at a lower portion of the first lens barrel 130 . Accordingly, the first lens barrel 130 may have a structure in which the lower edge is opened by the barrel hole gr. Accordingly, the mounting projection of the housing described above may be located in the barrel groove (gr). Accordingly, the first lens barrel 130 may be supported by the seating protrusion.

Referring to FIG. 9 , the barrel groove gr may overlap the seating protrusion 115 of the housing 110 in the third direction (Z-axis direction). Accordingly, even when the first lens barrel 130 moves in the third direction (the Z-axis direction), the lower movement may be blocked by the seating protrusion 115 of the housing 110 . Accordingly, even when the first lens barrel is moved, a collision between the control element positioned in the hole and the first lens barrel can be prevented. Accordingly, the reliability of the device may be improved.

10 is a view illustrating a driving magnet unit and a driving coil unit of the light emitting unit according to an embodiment, FIG. 11 is a view for explaining driving of the driving magnet unit and driving coil unit of the light emitting unit according to the embodiment, and FIG. 12 is an embodiment It is a top view of a driving magnet unit, a driving coil unit, a side substrate, and a control element of the light emitting unit according to an embodiment, and FIG. 13 is a view for explaining a positional relationship between the driving coil unit and the driving magnet unit according to the embodiment.

10 to 12 , the driving unit according to the embodiment may include a driving magnet unit 140 and a driving coil unit 150 . The driving magnet unit 140 may include a plurality of magnets.

In an embodiment, the driving magnet unit 140 may include a first magnet 141 to a fourth magnet 144 . The first magnet 141 and the second magnet 142 may be positioned to face each other. For example, the first magnet 141 and the second magnet 142 may be symmetrically disposed with respect to the first direction (X-axis direction).

The third magnet 143 and the fourth magnet 144 are positioned to face each other, and may be positioned between the first magnet 141 and the second magnet 142 . For example, the third magnet 143 and the fourth magnet 144 may be symmetrically disposed with respect to the second direction (Y-axis direction).

The first magnet 141 to the fourth magnet 144 may be respectively located in the above-described first magnet seating groove to the fourth magnet seating groove. The first magnet 141 to the fourth magnet 144 may be spaced apart from each other by the same distance based on the above-described central axis HX. Accordingly, the current flowing through the driving coil unit 150 and the magnetic force interact in a balanced way, so that the first lens barrel can be moved in a balanced manner without inclination to one side by the electromagnetic force.

And the first magnet 141 to the fourth magnet 144 may be unipolarly magnetized in each magnet seating groove. With this configuration, a balanced electromagnetic force can be generated only in the driving coil unit through which current flows in a single direction.

Alternatively, the first magnet 141 to the fourth magnet 144 may be positively magnetized in each magnet seating groove. In this case, as will be described later, each coil corresponding to the first magnet 141 to the fourth magnet 144 may exist individually. In this case, the movement of the first lens barrel may be more precisely controlled by controlling the amount of current flowing through each coil.

As described above, the driving coil unit 150 may have a closed loop shape on the plane XY. Accordingly, the driving coil unit 150 may surround the driving magnet unit 140 . That is, since the driving coil unit 150 has a closed loop shape, the camera module may control each magnet of the driving magnet unit 140 with one current. With this configuration, the phenomenon of being tilted in the third direction by the plurality of magnets can be prevented. Accordingly, the upper surface of the first optical unit may move in a direction opposite to the light receiving unit (eg, in a direction opposite to the first direction) such that the first optical unit may not be inclined. In addition, a decrease in the efficiency of the input light input to the light receiving unit according to the inclination may also be suppressed.

The driving coil unit 150 may be seated on the above-described coil receiving unit. In addition, at least a portion of the driving coil unit 150 and the driving magnet unit 140 may overlap in the first direction (X-axis direction) or in the second direction (Y-axis direction).

Also, the driving coil unit 150 may be disposed to surround the driving magnet unit 140 . That is, the driving magnet unit 140 may be located on a closed loop of the driving coil unit 150 .

In addition, when a current flows through the driving coil unit 150 , the first lens barrel and the driving magnet unit 140 may move in the third direction (Z-axis direction) by electromagnetic force.

For example, current may flow in the driving coil unit 150 in a counterclockwise direction. And the first magnet 141 to the fourth magnet 144 may generate a magnetic field in an outward direction. Based on this, the movement of the first lens barrel by electromagnetic force will be described below.

At this time, the magnetic field B1 is generated by the first magnet 141 in a direction opposite to the second direction, and the driving coil unit 150 is directed in a direction opposite to the first direction in a region facing the first magnet 141 . A current I1 flows through Accordingly, the electromagnetic force F1 is generated in the third direction (Z-axis direction) by the magnetic field B1 and the current I1.

In addition, the magnetic field B2 is generated in the second direction by the second magnet 142 , and the current I2 flows in the driving coil unit 150 in the first direction in the region facing the second magnet 142 . . Accordingly, the electromagnetic force F2 is generated in the third direction (Z-axis direction) by the magnetic field B2 and the current I2.

In addition, a magnetic field B3 is generated in a direction opposite to the first direction by the third magnet 143 , and the driving coil unit 150 generates a current I3 in a second direction in a region facing the third magnet 143 . ) flows. Accordingly, the electromagnetic force F3 is generated in the third direction (Z-axis direction) by the magnetic field B3 and the current I3.

In addition, the magnetic field B4 is generated in the first direction by the fourth magnet 144 , and the driving coil unit 150 generates a current I4 in a direction opposite to the second direction in the region facing the fourth magnet 144 . ) flows. Accordingly, the electromagnetic force F4 is generated in the third direction (Z-axis direction) by the magnetic field B4 and the current I4. At this time, the driving coil unit receives a force to move in the third direction (Z-axis direction) or upward by the electromagnetic forces F1 to F4. Since the driving coil unit is fixedly coupled to the housing, the movable first lens barrel may be moved downward by electromagnetic force.

Also, when current flows in the driving coil unit 150 in a clockwise direction, the first lens barrel may move in a direction opposite to or upward in the third direction.

Also, the driving coil unit 150 may be spaced apart from the driving magnet unit 140 by a first separation distance dd1 . The separation distance dd1 may be 70 μm to 90 μm. With this configuration, ease of assembly is ensured, and the movement of the first lens barrel according to the strength of the electromagnetic force can be easily controlled. Furthermore, the electromagnetic force between the magnet and the coil may be 0.002 mN/mA when the separation distance d1 is 90 μm.

Also, one end of the driving coil unit 150 may be connected to a first wire w1 and a second wire w2 for electrically connecting to the side substrate 170 . The first wire w1 and the second wire w2 are electrically connected to the side substrate 170 , and in particular, disposed at a position corresponding to the side substrate 170 , so that electrical resistance can be minimized. Accordingly, a decrease in accuracy due to the resistance may be prevented and power efficiency may be improved.

Also, the first wire w1 and the second wire w2 may be connected to one end and the other end of the driving coil unit 150 made of a coil, respectively.

Accordingly, a predetermined current is injected into the driving coil unit 150 through the first wire w1 and the second wire w2 according to the control signal received to the side substrate 170 , and the first The lens barrel can be moved by electromagnetic force. Accordingly, driving stability may be improved by disposing the side substrate 170 adjacent to the driving unit of the light emitting unit.

In addition, since a rectifier element (eg, a capacitor) is disposed on the side substrate 170 , noise of the current supplied to the driving coil unit may be removed by the rectifier element. Accordingly, the movement of the first lens barrel may be accurately performed. In addition, since the rectifier element is not disposed on the main board, the camera module can be easily miniaturized.

In addition, the side substrate 170 may include a terminal portion disposed below and electrically connected to the main substrate. The terminal unit may be electrically connected to the main board through soldering or the like. With this configuration, a control signal such as a current can be transmitted and received between the main board and the second board.

In addition, the side substrate 170 may have a control element SS mounted thereon. The control element SS may be formed integrally with the side substrate. The control element SS may be located under the driving coil unit 150 . For example, the control element SS may be disposed below the lowermost end of the driving coil unit 150 . Also, at least a portion of the control element SS may be positioned to overlap the driving coil unit 150 in the third direction (Z-axis direction). Accordingly, the control element SS may accurately sense the strength of the magnetic force from the driving magnet unit 140 located inside the driving coil unit 150 . In addition, in the camera module according to the embodiment, the control element SS detects the magnetic force generated from the driving magnet unit without a separate magnet and calculates the position of the first lens module. Accordingly, the compactness of the light emitting unit can be easily achieved.

In addition, the control element SS and the driving magnet unit, in particular, the third magnet may have a predetermined separation distance from each other. This separation distance may be 0.44 mm to 0.66 mm. With this configuration, a magnetic force or a detection value sensed by the control element corresponding to the position of the first lens module may be linear. Thereby, the accuracy of the position sensing of the control element can be improved.

In addition, the height T1 in the third direction (Z-axis direction) of the driving coil unit 150 may be smaller than the height T2 in the third direction (Z-axis direction) of each magnet or driving magnet unit. Due to this configuration, the driving coil unit 150 is connected to the driving magnet unit 140 in the first direction (X-axis direction) even when the first lens barrel and the driving magnet unit 140 move in the third direction (Z-axis direction). and overlapping in the second direction (Y-axis direction).

Referring to FIG. 13 , when the first lens barrel is located at the lowest position (hereinafter referred to as 'lowest driving'), the driving coil unit 150 and the driving magnet unit 140 move in the third direction (Z-axis direction). It may be superimposed on a direction perpendicular to or on the plane (XY). Alternatively, during the lowest driving, the upper surface of the driving coil unit 150 may be located at least lower than the upper surface of the driving magnet unit 140 .

Furthermore, even when the first lens barrel is located at the top (hereinafter referred to as 'highest driving'), the driving coil unit 150 and the driving magnet unit 140 may overlap in the XY phase. Alternatively, the lower surface of the driving coil unit 150 may be positioned at least above the lower surface of the driving magnet unit 140 during the highest driving.

In other words, the driving coil unit 150 according to the embodiment is perpendicular to the driving magnet unit 140 and the third direction (Z-axis direction) even when the driving magnet unit 140 is moved (eg, the lowest driving to the highest driving). It can be nested in one direction.

In addition, the first center or first central axis Z1 that bisects the driving coil unit 150 in the third direction may be located in the first magnet region ZP1 of the driving magnet unit 140 .

In an embodiment, the driving magnet unit 140 may include a first magnet area ZP1 and a second magnet area ZP2. The first magnet area ZP1 may be located above the second magnet area ZP2 , and the second magnet area ZP2 may be located below the first magnet area ZP1 . The first magnet region ZP1 and the second magnet region ZP2 may be divided based on a second center or a second central axis Z2 that bisects the driving magnet unit 140 in the third direction.

In this case, the first central axis Z1 of the driving coil unit 150 may be positioned on the first magnet region ZP1 during the lowest driving to the highest driving. According to this configuration, it is possible to improve the magnitude of the electromagnetic force generated between the driving unit, that is, the driving magnet 140 and the driving coil unit 150 during the lowest driving to the highest driving.

Furthermore, the current applied to the driving coil unit may be greater during the highest driving compared to the lowest driving. However, according to the embodiment, the separation distance between the first central axis Z1 and the second central axis Z2 may be smaller during the highest driving compared to the lowest driving. Accordingly, it is possible to improve energy efficiency by reducing the amount of current applied to the driving coil unit during peak driving.

According to this configuration, an overlapping area between the driving coil unit 150 and the driving magnet unit 140 on the XY plane may be constant. Accordingly, the electromagnetic force generated by the driving coil unit 150 and the driving magnet unit 140 is minimized due to the position between the driving coil unit 150 and the driving magnet unit 140 (in particular, the position in the Z-axis direction). can do. That is, the driving or movement of the first lens barrel by the electromagnetic force may be linear with the amount of change in the current. In other words, the movement of the first lens barrel can be accurately performed.

Also, in the case of the lowest driving, a region in which the driving coil unit 150 overlaps the first magnet region ZP1 in a direction perpendicular to the optical axis or the third direction (Z-axis direction) may be larger than a non-overlapping region. Furthermore, when the driving coil unit 150 is driven at its highest, the region in which the driving coil unit 150 overlaps the first magnet region ZP1 and the optical axis or in a direction perpendicular to the third direction (Z-axis direction) is the second magnet region ZP2 and the optical axis or It may be more than a region overlapping in a direction perpendicular to the third direction (Z-axis direction). And, in the case of the highest driving, the lowermost portion of the driving coil unit 150 may be located above the lowermost portion of the driving magnet unit 140 .

14 is a view showing one side of the side substrate of the light emitting unit according to the embodiment, and FIG. 15 is a view showing the other side of the side substrate of the light emitting unit according to the embodiment.

14 to 15 , the side substrate 170 may have one side and the other side facing the one side and contacting the housing.

The side substrate 170 may include first and second conductive parts EC1 and EC2 connected to the first and second wires of the driving coil part on one side thereof. And the side substrate 170 may include a coupling hole 170a on the other side. The coupling hole 170a may be coupled to the coupling protrusion of the housing as described above. Accordingly, the side substrate 170 may be coupled to the side surface of the housing.

In addition, the control element SS may be positioned on the other side of the side substrate 170 . The control element SS may be seated on the other side of the side substrate 170 and inserted thereinto.

16 is a top view of a first lens barrel, a driving magnet part, a driving coil part, a housing, a side substrate, and a control element of the light emitting part according to the embodiment, and FIG. 17 is a cross-sectional view taken along line ZZ' in FIG. 16 , and FIG. 18 is a cross-sectional view taken along QQ' in FIG. 16, and FIG. 19 is a cross-sectional view taken along YY' in FIG.

16 to 19 , in the housing 110 according to the embodiment, the hole 113 and the seating groove 114h may overlap in the first direction (X-axis direction). And, as described above, the hole 113 and the seating groove 114h may be located in the third housing side 110k3 having the largest minimum separation distance from the light receiving part in the housing.

In addition, the side substrate 170 may include the first and second conductive portions disposed on the outer surface, and may include the control element SS disposed on the inner surface.

And the control element SS may be seated in the hole 113 . Also, the control element SS may at least partially overlap the seating groove 114h. In addition, the control element SS may be located under the coil receiving unit 114 , that is, under the driving coil unit 150 .

In addition, the control element SS according to the embodiment may overlap the third magnet 143 opposite to the third housing side 110k3 in at least a first direction (X-axis direction). In addition, the seating groove 114h is positioned between the control element SS and the third magnet 143 , and is opened so that the control element SS can easily sense the magnetic force generated from the third magnet 143 . .

Also, the control element SS may at least partially overlap the driving coil unit 150 in the third direction (Z-axis direction) (OV). Accordingly, when the bonding member EX such as epoxy is applied to the third housing side 110k3 , the bonding member EX may be positioned on the upper surface SSa of the control element SS. Accordingly, the upper surface SSa of the control element SS and the upper surface of the hole 113 may be coupled to each other through the bonding member. In other words, the position of the driving coil unit 150 may be guided along the coil receiving unit 114 , and the position of the control element SS may be guided by the hole 113 and the mounting groove 114h. Accordingly, the control element SS and the driving coil unit 150 may be precisely disposed at the designed positions. Accordingly, the camera module according to the embodiment can accurately adjust the shape of the input light according to the distance.

In addition, the control element SS may be disposed under the driving coil unit 150 , and at least a portion of the above-described bonding member EX may be located between the control element SS and the driving coil unit 150 . That is, at least a portion of the bonding member EX may overlap the control element SS and the driving coil unit 150 in the third direction. With this configuration, the bonding member EX may block the magnetic field generated from the driving coil unit 150 from acting as noise to the control element SS. Accordingly, the position detection of the optical unit by the control element SS may be accurately performed.

Furthermore, the third central axis Z3 of the control element SS is a direction perpendicular to the driving magnet unit 140 and the third direction or a plane XY when the first optical unit converts the light into a dot shape. can be nested.

In addition, the third central axis Z3 of the control element SS overlaps the driving magnet unit 140 in a direction perpendicular to the third direction or a plane XY when the first optical unit converts the light into a planar shape. it may not be

Accordingly, the separation distance between the driving magnet unit 140 and the control element SS is reduced in the case of the point shape compared to the plane shape, so that the position of the first optical part through the control element SS can be accurately detected. Accordingly, by precisely detecting the position of the first optical unit, control (eg, notification, etc.) of eye-safety by light in the case of a dot shape can be easily performed.

20 is a view showing the first elastic member of the light emitting part according to the embodiment, and FIG. 21 is a view showing the coupling of the first elastic member of the light emitting part according to the embodiment. And Fig. 22 is a view showing the second elastic member of the light emitting part according to the embodiment, and Fig. 23 is a view showing the combination of the light emitting part and the second elastic member according to the embodiment.

20 to 23 , the elastic part 160 may include a first elastic member 161 and a second elastic member 162 . The elastic part 160 may be positioned above or below the first lens barrel 130 to be coupled to the housing 110 and the first lens barrel 130 . Accordingly, even when the first lens barrel 130 is vertically moved by the driving unit, a preload may be applied to the vertical movement of the first lens barrel 130 through the elastic part 160 coupled to the housing 110 . Accordingly, if no current is applied to the driving coil unit, the first lens barrel 130 may exist at the same position in the housing 110 by the restoring force of the elastic unit 160 .

The first elastic member 161 may be positioned above the first lens barrel 130 . The second elastic member 162 may be positioned under the first lens barrel 130 .

The first elastic member 161 may include a first elastic coupling part P1 and a second elastic coupling part P2. The first elastic coupling part P1 may be located outside the second elastic coupling part P2. And the first elastic coupling portion (P1) may be coupled to the protrusion of the housing (110). Also, the second elastic coupling part P2 may be coupled to the first lens barrel 130 . At this time, a bonding member may be applied to the first elastic coupling part P1 and the second elastic coupling part P2 for the above-described coupling (DA1). The bonding member may include epoxy or the like. Further, the bonding member may be, for example, a damper liquid. Further, the first elastic coupling portion (P1) and the second elastic coupling portion (P2) further includes an additional groove extending to one side, the application of the bonding member can be easily performed.

In addition, the first pattern portion PT1 having various curvatures may be positioned between the first elastic coupling portion P1 and the second elastic coupling portion P2 . That is, the first elastic coupling part P1 and the second elastic coupling part P2 may be coupled to each other with the first pattern part PT1 interposed therebetween.

Furthermore, the first elastic coupling part P1 and the second elastic coupling part P2 may have a hole or groove shape, and may have a shape to have an assembly tolerance with the housing or the first lens barrel to be coupled.

In addition, the first pattern part PT1 may be symmetrically disposed with respect to the first diagonal line DL1 or the second diagonal line DL2 . The first diagonal line DL1 may be an imaginary line connecting the dots between the first housing side and the fourth housing side and the dots between the second housing side and the third housing side. The second diagonal line DL2 may be a virtual line connecting a contact point between the first housing side and the third housing side and a point between the second housing side and the fourth housing side.

In addition, a damping member may be applied on the first pattern portion PT1. Such a damping member may include a damper fluid. Vibration of the elastic part may be suppressed by the damper liquid. Such a damping member may be applied to the first pattern part PT1. In addition, the damping member may be disposed to be spaced apart from the housing. Accordingly, vibration generated in the first pattern part PT1 may be reduced, and a malfunction due to coupling between the housing and the spring may be prevented. More specifically, the damping member may be applied to an area adjacent to the first elastic coupling part P1 or the second elastic coupling part P2 in the first pattern part PT1 (DP). Accordingly, since the first pattern portion PT1 is coupled to the first elastic coupling portion P1 and the second elastic coupling portion P2 with low vibration, vibration suppression may be improved.

In addition, the first elastic coupling portion P1 and the second elastic coupling portion P2 described above may be positioned on the first diagonal line DL1 or the second diagonal line DL2. By this configuration, even if the bonding member is applied to the first elastic coupling part P1 and the second elastic coupling part P2, the phenomenon that the bonding member is applied on the magnet or the first optical unit 120 can be prevented. . Accordingly, the first elastic member 161 is prevented from being coupled to members other than the housing 110 or the first lens barrel 130 , so that a preload can be uniformly applied between the housing and the first lens member. Accordingly, the vertical movement of the first lens barrel can be performed linearly, ie, accurately, according to the control.

In addition, when the first lens barrel 130 moves up and down, that is, in the third direction (Z-axis direction), tilt or movement based on the first direction (X-axis direction) or the second direction (Y-axis direction) Generation may be suppressed by the first elastic coupling portion P1 and the second elastic coupling portion P2 on the first diagonal line DL1/second diagonal line DL2.

The first pattern portion PT1 may be designed with an elastic modulus of the first elastic member 161 that linearly corresponds to an electromagnetic force and a vertical movement distance of the first lens barrel. Furthermore, as will be described later, the first and second elastic members 161 and 162 are disposed on the upper and lower portions of the first lens barrel to minimize the influence of momentum on the vertical movement of the first lens barrel 130 .

In addition, the first elastic member 161 may have a shape such that the safety factor of the elastic member is greater than or equal to a threshold value so that shape deformation does not occur due to impact. That is, the safety factor of the first elastic member with respect to the first direction or the second direction may be greater than the safety factor of the first elastic member with respect to the third direction. Accordingly, durability against an impact applied in the first direction or the second direction may be increased.

Similarly, the second elastic member 162 may include a third elastic coupling portion (P3) and a fourth elastic coupling portion (P4). The third elastic coupling part P3 may be located outside the fourth elastic coupling part P4.

And the third elastic coupling portion (P3) may be coupled to the protrusion of the housing (110). Also, the fourth elastic coupling part P4 may be coupled to the first lens barrel 130 . At this time, the bonding member may be applied to the third elastic coupling part P3 and the fourth elastic coupling part P4 to achieve the above-described coupling (DA2).

The bonding member may include epoxy or the like. Further, the bonding member may be, for example, a damper liquid. Furthermore, the third elastic coupling part P3 and the fourth elastic coupling part P4 further include an additional groove extending to one side, so that the application of the bonding member can be easily performed.

In addition, the second pattern portion PT2 having various curvatures may be positioned between the third elastic coupling portion P3 and the fourth elastic coupling portion P4 . That is, the third elastic coupling part P3 and the fourth elastic coupling part P4 may be coupled to each other with the second pattern part PT2 interposed therebetween.

Furthermore, the third elastic coupling part P3 and the fourth elastic coupling part P4 may be in the shape of a hole or a groove, and may have a shape to have an assembly tolerance with the housing or the first lens barrel to be coupled.

In addition, the second pattern part PT2 may be symmetrically disposed with respect to the third diagonal line DL3 or the fourth diagonal line DL4 . The third diagonal line DL3 may be an imaginary line connecting the dots between the first housing side and the fourth housing side and the dots between the second housing side and the third housing side. In addition, the fourth diagonal line DL4 may be an imaginary line connecting a contact point between the first housing side and the third housing side and a point between the second housing side and the fourth housing side.

In addition, a damping member may be applied on the second pattern part PT2. Such a damping member may include a damper fluid. Vibration of the elastic part may be suppressed by the damper liquid. Such a damping member may be applied to the second pattern part PT2 .

In addition, the above-described third elastic coupling portion P3 and the fourth elastic coupling portion P4 may be positioned on the third diagonal line DL3 or the fourth diagonal line DL4. By this configuration, even if the bonding member is applied to the third elastic coupling part P3 and the fourth elastic coupling part P4, the phenomenon that the bonding member is applied on the magnet or the first optical unit 120 can be prevented. . Accordingly, the second elastic member 162 may be prevented from being coupled to a member other than the housing 110 or the first lens barrel 130 so that a preload may be uniformly applied between the housing and the first lens member. Accordingly, the vertical movement of the first lens barrel is linearly performed according to the control, so that accurate vertical movement control can be achieved.

In addition, when the first lens barrel 130 moves up and down, that is, in the third direction (Z-axis direction), tilt or movement based on the first direction (X-axis direction) or the second direction (Y-axis direction) Generation may be suppressed by the first elastic coupling portion P1 and the fourth elastic coupling portion P4 on the third diagonal line DL3/the fourth diagonal line DL4.

The second pattern part PT2 may be designed with an elastic modulus of the second elastic member 162 that linearly corresponds to an electromagnetic force and a vertical movement distance of the first lens barrel. Furthermore, as will be described later, the first and second elastic members 161 and 162 are disposed on the upper and lower portions of the first lens barrel to minimize the influence of momentum on the vertical movement of the first lens barrel 130 .

In addition, the second elastic member 162 may have a shape such that the safety factor of the elastic member is greater than or equal to a threshold value so that shape deformation does not occur due to impact. That is, the safety factor of the second elastic member with respect to the first direction or the second direction may be greater than the safety factor of the second elastic member with respect to the third direction. Accordingly, durability against an impact applied in the first direction or the second direction may be increased.

24 is a view showing a base of a camera module according to an embodiment, FIG. 25 is a view showing a second optical unit and a second lens barrel of a light receiving unit according to an embodiment, and FIG. 26 is a camera module according to the embodiment It is a diagram showing the cover of.

Referring to FIG. 24 , the base 200 is positioned on the main substrate 4 and may be in contact with the main substrate 4 . In addition, the first lens barrel, the first optical unit, the second lens barrel, the second optical unit, and the housing described above may be seated on the base 200 .

The base 200 may include a first base part 210 and a second base part 220 that are spaced apart from each other. Components of the light emitting unit such as the first optical unit, the first lens barrel, and the housing may be seated on the first base unit 210 . In addition, the second base unit 220 may seat the second optical unit and the second lens barrel.

The first base part 210 and the second base part 220 may include base holes 210a and 220a, respectively. An optical signal from a light source may be output toward an object through the base holes 210a and 220a, and an optical signal (reflected light) reflected from the object may be provided to the image sensor.

In addition, the above-described filters may be seated on the first base part 210 and the second base part 220 , respectively. Furthermore, although the first base part 210 and the second base part 220 are shown as one body, they may be separated. In addition, the second base unit 220 may be tilted as described above, and the filter attached to the second base unit 220 may also be tilted, so that the camera module according to the embodiment may perform the above-described super resolution technique.

Referring to FIG. 25 , the second optical unit 310 may be coupled to the second lens barrel 320 . The second optical unit 310 may be inserted into a hole located in the center of the second lens barrel 320 . In addition, the second lens barrel 320 may be screwed to the second base portion 220 of the base 200 by having a screw thread on the outer surface.

The second optical unit 310 may also include a plurality of lenses. The second optical unit 310 may have the same structure as the above-described first optical unit or optical unit. Referring to FIG. 26 , the cover 400 may include a first cover part 410 and a second cover part 420 in addition to the above description. The first cover part 410 is positioned on the first base part and may include a first cover hole 410a overlapping the first optical part. An optical signal (output light) passing through the first optical unit through the first cover hole 410a may be irradiated to the object.

The second cover part 420 is positioned on the second base part and may include a second cover hole 420a overlapping the second optical part. An optical signal (reflected light) passing through the second optical unit through the second cover hole 420a may be irradiated to the image sensor.

27 is a view for explaining the movement of the first optical unit and the first lens module in the light emitting unit according to the embodiment, and FIG. 28 is a view for explaining the optical signal shape according to the movement of the first optical unit and the first lens module , and FIG. 29 is a view showing an example of an image of the light receiving unit according to the movement of the first optical unit and the first lens module.

Referring to FIGS. 27 to 29 , the first optical unit and the first lens module according to the embodiment move in the vertical direction to convert the optical signal (output light) into a planar light source or a point light source.

That is, the output light may be output in the form of a plane pattern or a plurality of dots according to a distance between the light source and the first lens module (or the first optical unit/second optical unit (hereinafter referred to as optical unit and pole).

In an embodiment, the first optical unit and the first lens module may be moved in the optical axis direction (Z axis direction) by the driving unit. And, as described above, the amount of movement to the upper portions of the first optical unit and the first lens module may be adjusted according to the amount of current flowing through the driving coil unit.

For example, in the camera module according to the embodiment, the first optical unit and the first lens module may be moved so that the distance from the light source has a maximum (see FIG. 27(a)) to a minimum (see FIG. 27(b)). . Specifically, the above-described distance between the light source and the optical unit (the first optical unit) may be a distance between the uppermost surface of the aperture of the light source and the lowermost surface of the optical unit. In addition, when the distance between the uppermost surface of the aperture of the light source and the lowermost surface of the optical unit is less than a predetermined distance (eg, 80 µm), light is output in the form of dots. In addition, when the distance between the uppermost surface of the aperture of the light source and the lowermost surface of the optical unit is greater than or equal to a predetermined distance (eg, 530 μm), the light source may be output in a planar form.

That is, the control unit controls the amount of current supplied to the driving coil unit to adjust the distance between the first lens module (or the first optical unit) and the light source to finally control the shape of the output light (planar light source or point light source). can For example, the controller may change the amount of movement of the first lens module by the actuator when the amount of current provided to the driving coil unit is changed (eg, increased/decreased current value).

In an embodiment, when the distance between the light source and the first lens module (or the first optical unit) is greater than or equal to a certain distance, the optical signal (output light) is transmitted to the surface light source or It can be printed in the form of a face. That is, if the distance between the light source and the first lens module (or the first optical unit) is between a preset distance (or a certain distance) and the maximum distance, the optical signal (output light) may be output in the form of a surface light source or a surface. . Here, the maximum distance is a distance when the distance between the light source and the first movable lens module is the maximum, and may be the distance between the position of the first lens module and the light source when the actuator is driven to the maximum (eg, maximum current).

On the other hand, when the distance between the light source and the first lens module (or the first optical unit) is less than or equal to a certain distance, the optical signal may be output in the form of a point light source or a point as shown in FIGS. 28(b) and 29(b). have. That is, if the distance between the light source and the first lens module (or the first optical unit) is between a predetermined distance (or a predetermined distance) and the minimum distance, the optical signal may be output in the form of a point light source or a point. Here, the minimum distance is a distance when the distance between the light source and the movable first lens module (or first optical unit) is the minimum, and the distance between the position (initial position) of the first lens module and the light source when the actuator is not driven can be

In addition, in the range of the predetermined distance or less, the optical signal (output light) from the light source is output in the form of a dot as described above, and higher energy may be applied to the object.

The camera module 10 according to the embodiment of the present invention can change the light pattern of the output light from a planar light source to a point light source or change the resolution of the point light source according to the resolution of the output light, the distance to the object, the degree of power consumption, etc. It provides the advantage of being flexible to the requirements of the application.

30 is a diagram illustrating an optical device including a camera module according to an embodiment.

Referring to FIG. 30 , the optical device according to the embodiment includes a front case (fc), a rear case (rc), and a camera module (10) provided in or between the front case (fc) and the rear case (rc) do.

And the camera module 10 may be the above-described camera module. Accordingly, the optical device may take a stereoscopic image through the camera module 10 that outputs the three-dimensional depth image.

In the above, the embodiment has been mainly described, but this is only an illustration and does not limit the present invention, and those of ordinary skill in the art to which the present invention pertains are not exemplified above in the range that does not depart from the essential characteristics of the present embodiment. It can be seen that various modifications and applications are possible. For example, each component specifically shown in the embodiment can be implemented by modification. And differences related to such modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

Claims (18)

light source;
an optical unit disposed to be movable in an optical axis direction on the light source;
a driving unit for moving the optical unit;
a housing accommodating the optical unit; and
image sensor; including;
The driving unit,
a driving magnet unit including a driving coil unit disposed opposite to each other inside the housing and at least one magnet;
a substrate disposed on the outer surface of the housing; and
a control element disposed on the substrate; and
The housing includes a hole passing through an outer surface and an inner surface of the housing,
The control element is disposed in the hole to face the magnet camera module.
According to claim 1,
The control element is a camera module disposed below the lowermost end of the driving coil unit.
3. The method of claim 2,
The control element is a camera module that does not overlap the driving coil unit in a first direction perpendicular to the optical axis direction and a second direction perpendicular to the first direction.
According to claim 1,
The control element is a camera module formed integrally with the substrate.
According to claim 1,
The driving coil unit overlaps the driving magnet unit in a direction perpendicular to the optical axis direction even when the driving magnet unit moves.
6. The method of claim 5,
The control element is at least partially overlapped with the driving coil unit in the optical axis direction.
According to claim 1,
An adhesive member is positioned between the driving coil unit and the control element.
According to claim 1,
The control element is a camera module that overlaps the driving magnet unit in a direction perpendicular to the optical axis direction when the optical unit moves in the optical axis direction.
2. The method of claim 1
The driving coil unit has a closed loop shape and surrounds the driving magnet unit.
According to claim 1,
A thickness of the driving coil unit is smaller than a thickness of the driving magnet unit.
According to claim 1,
The driving magnet unit includes a first magnet region; and a second magnet area positioned below the first magnet area;
The first center of the driving coil unit is a camera module that moves along the first magnet area.
According to claim 1,
The optical unit includes a lens barrel; and at least one lens disposed in the lens barrel.
13. The method of claim 12,
The camera module further comprising; an elastic part connecting the housing and the optical part.
14. The method of claim 13,
The elastic part may include: a first elastic member disposed on the lens barrel; and a second elastic member disposed under the lens barrel.
15. The method of claim 14,
The first elastic member,
a first elastic coupling part;
a second elastic coupling part disposed outside the first elastic coupling part; and
Including; a first pattern portion disposed between the first elastic coupling portion and the second elastic coupling portion;
The second elastic member,
a third elastic coupling part;
a fourth elastic coupling part disposed outside the third elastic coupling part; and
A camera module including a; a second pattern portion disposed between the third elastic coupling portion and the fourth elastic coupling portion.
16. The method of claim 15,
The camera module further comprising a damping member disposed on the first pattern portion and the second pattern portion and spaced apart from the housing.
17. The method of claim 16,
The damping member is disposed adjacent to the first elastic coupling part, the second elastic coupling part, the third elastic coupling part, or the fourth elastic coupling part.
16. The method of claim 15,
The first pattern portion is symmetrical with respect to the first diagonal line and the second diagonal line,
The second pattern portion is symmetrical with respect to a third diagonal line and a fourth diagonal line camera module.

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