KR102871827B1 - Actuator for driving zoom - Google Patents

Abstract

The actuator for zoom driving according to the present invention comprises a first carrier including a first supporting member, a first body part in which the first supporting member is inserted and formed so that a first part, which is a part of the first supporting member, is exposed, a first guiding space formed on the opposite side of the first part with respect to the optical axis, and which moves in the direction of the optical axis with respect to the housing; and a second carrier including a second supporting member, a second body part in which the second supporting member is inserted and formed so that a second part, which is a part of the second supporting member, is exposed, and a second guiding space formed on the opposite side of the second part with respect to the optical axis, wherein the first part is guided by the second guiding space, and the second part is guided by the first guiding space.

Description

Actuator for driving zoom

The present invention relates to a zoom actuator, and more particularly, to a zoom actuator that can further improve space utilization according to an extended movement distance of a lens.

As hardware technology for image processing advances and user needs for video shooting increase, functions such as autofocus (AF) and optical image stabilization (OIS) are being implemented in standalone camera devices as well as camera modules mounted on mobile terminals such as cell phones and smartphones.

In addition, recently, a zoom actuator that can vary the size of a subject, etc., through zoom-in and zoom-out functions has been disclosed, and an actuator that implements AF or/and zoom functions in a more diverse manner by applying the mutual positional relationship of a plurality of lenses (lens assemblies) in combination according to an embodiment has also been disclosed.

In the case of such zoom actuators, the distance of movement of the zoom lens in the direction of the optical axis (also referred to as the stroke) is longer or expanded than that of a general lens, and depending on the embodiment, multiple carriers may be applied, so that the volume, such as length and width, increases relatively compared to a general actuator.

However, in the case of conventional actuators, since they are implemented in a way that each of the multiple carriers individually secures its own independent movement space, space utilization is not high, making it difficult to optimize them for portable terminals.

In addition, in the case of an actuator for zoom driving, the moving distance of the carrier on which the lens is mounted increases, and depending on the embodiment, the length of the carrier itself is extended to mount multiple lenses, so if it is continuously exposed to environmental changes, external impacts, etc., the driving performance may deteriorate due to distortion, tilting, linearity breakdown, etc. of the carrier itself.

Considering the recent trend of mobile devices being increasingly configured to provide various functions, spatial constraints within mobile devices are becoming more severe.

Therefore, for complex and relatively large actuators, such as those for continuous zoom, space efficiency becomes an even more important issue and can be a key factor that can dramatically increase their applicability in mobile terminals.

The present invention was created to solve the problems described above against the background described above, and its purpose is to provide an actuator for zoom driving that can more stably maintain the driving of the carrier and more effectively utilize the space of the actuator.

Other objects and advantages of the present invention can be understood through the following description and will be more clearly understood through the embodiments of the present invention. Furthermore, the objects and advantages of the present invention can be realized through the configurations and combinations of configurations set forth in the claims.

In order to achieve the above object, the present invention provides a zoom actuator, comprising: a first carrier including a first supporting member, a first body part formed by inserting the first supporting member so that a first part, which is a part of the first supporting member, is exposed; a first guiding space formed on the opposite side of the first part with respect to the optical axis, and which moves in the direction of the optical axis with respect to the housing; and a second carrier including a second supporting member, a second body part formed by inserting the second supporting member so that a second part, which is a part of the second supporting member, is exposed; and a second guiding space formed on the opposite side of the second part with respect to the optical axis, wherein the first part is guided by the second guiding space, and the second part is configured to be guided by the first guiding space.

Specifically, the first carrier of the present invention may include a plurality of first mounters on which a plurality of lenses are each mounted and which are spaced apart from each other based on the optical axis direction, and the second carrier of the present invention may include m (m is a natural number greater than or equal to 1) second mounters on which lenses are mounted, and at least one of the second mounters may be configured to be positioned between the plurality of first mounters.

Preferably, the first carrier of the present invention may include a first mounting portion formed on an opposite side of the first part based on the optical axis and having a first magnet mounted thereon facing the first coil provided in the housing, and in this case, the first guiding space may be formed between the first mounter and the first mounting portion.

In addition, the second carrier of the present invention may include a second mounting portion formed on an opposite side of the second part with respect to the optical axis and having a second magnet mounted thereon facing the second coil provided in the housing, and in this case, the second guiding space may be formed between the second mounter and the second mounting portion.

Furthermore, the first and second guiding spaces of the present invention can be configured so that the directions of the open portions are opposite to each other based on the upper and lower portions.

According to an embodiment, the present invention may further include a ball disposed at least between the first carrier and the housing or between the second carrier and the housing.

In addition, the first and second carriers of the present invention may be configured so that some of the moving sections overlap through mutual guiding between the first part and the second guiding space and between the second part and the first guiding space.

According to one embodiment of the present invention, by improving the physical structure so that some of the carriers intersect or overlap each other, independent movement of each of the multiple carriers can be effectively secured, and the structure and shape of the entire device can be implemented in a more space-intensive form, so that the overall space can be minimized and the miniaturization of the mobile terminal can be further optimized.

According to one embodiment of the present invention, in order to improve the durability of the carrier, a structure is formed in each of a plurality of carriers so that a portion of the inserted support member is exposed to the outside, and the exposed structure formed in one carrier is cross-seated in the guiding space of another carrier, thereby arranging the plurality of carriers, thereby further improving the efficiency of the assembly process as well as space utilization.

According to one embodiment of the present invention, not only can the durability of the carrier be effectively increased through the inserted support member, but also by forming a guiding space of each carrier between the mounter on which the lens is mounted and the mount portion on which the magnet is mounted, a structure that physically interferes can be fundamentally eliminated, thereby enabling more stable independent operation of the carrier.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and together with the detailed description of the invention described below, serve to more effectively understand the technical idea of the present invention, and therefore, the present invention should not be interpreted as being limited to the matters described in these drawings.
FIG. 1 is a drawing showing the overall configuration of a zoom driving actuator and a camera module according to a preferred embodiment of the present invention;
FIG. 2 is a drawing showing the overall configuration of a zoom driving actuator according to a preferred embodiment of the present invention;
FIG. 3 is a drawing showing a carrier and its related configuration according to one embodiment of the present invention;
Figure 4 is a drawing showing a detailed configuration of a first carrier, etc. according to one embodiment of the present invention.
FIG. 5 is a drawing showing a detailed configuration of a second carrier, etc. according to one embodiment of the present invention.
Figure 6 is a drawing showing the first and second carriers combined.
Figures 7 and 8 are drawings showing the relationship in which the first carrier and the second carrier are combined.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, it should be noted that the terms and words used in this specification and claims should not be construed as limited to their conventional or dictionary meanings. Based on the principle that the inventor can appropriately define the concepts of terms to best explain his or her invention, they should be interpreted in a way that conforms to the technical spirit of the present invention.

Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention. Therefore, it should be understood that there may be various equivalents and modified examples that can replace them at the time of filing this application.

FIG. 1 is a drawing showing the overall configuration of a zoom driving actuator (hereinafter referred to as “actuator”) (100) and a camera module (1000) according to a preferred embodiment of the present invention.

The actuator (100) of the present invention can be implemented as a single device in itself, and can also be implemented as a camera module (1000) including a reflector module (200) as shown in FIG. 1.

The actuator (100) of the present invention corresponds to an actuator that implements functions such as auto focus (AF) or zoom (continuous zoom) by linearly moving one or more carriers equipped with lenses (lens assemblies) in the optical axis direction as described below.

A reflector module (200) that can be installed in the front or upper portion (in the optical axis direction, based on the Z-axis direction based on the drawing) of the actuator (100) performs the function of reflecting or refracting the light path (Z1) of the subject into the path (Z) in the direction of the lens. The light reflected or refracted in the optical axis direction in this way passes through a lens (lens assembly) installed in the carrier (120, 130) and enters an image sensor (30) such as a CMOS or CCD.

A reflector module (200) that changes the path of light may include a reflector (210) that may be formed of one or a combination of a mirror or a prism. This reflector (210) may be implemented by various members that can change light coming from the outside in the direction of the optical axis, but it is preferable to implement it with a glass material in order to improve optical performance.

The camera module (1000) of the present invention, which includes a reflective module (200), is configured to refract the path of light so that light flows in the direction of the lens, so that the device itself can be installed in the length direction of the mobile terminal (smartphone, etc.) rather than in the thickness direction, thereby not increasing the thickness of the mobile terminal, and thus can be optimized for miniaturization or slimming of the mobile terminal.

According to the embodiment, the reflector (210) may be configured to rotate by a driving means that generates magnetic force, such as a magnet and a coil (C3, see FIG. 2), and a position detection sensor.

In this way, when the reflector (210) moves or rotates, the light of the subject reflected (refracted) through the reflector (210) moves in the ±Y direction and/or ±X direction, so that correction of the X-axis and/or Y-axis direction due to hand shake, etc. can be implemented.

Light from a subject reflected through a reflector module (200) is incident on one or more lenses (R2-1, R1-1, R2-2, R1-2, etc.) mounted on one or more carriers (120, 130) that move linearly based on the optical axis direction (Z-axis), and the positions (based on the optical axis direction) of one or more lenses are combinedly adjusted by the actuator (100) of the present invention, thereby implementing functions such as zoom or AF.

The drawing shows two carriers (120, 130) that move in the direction of the optical axis with the housing (110) as a relative fixed body, but this is only an example, and a different number of carriers may be provided, and a fixed lens may be provided in the housing (110) or the like depending on optical specifications or performance.

In the following description of the present invention, the directional axis corresponding to the path through which light enters a lens or the like is defined as the optical axis (Z-axis), and the two axes perpendicular to the optical axis (Z-axis) are defined as the X-axis and the Y-axis.

FIG. 2 is a drawing showing the overall configuration of an actuator (100) according to a preferred embodiment of the present invention, and FIG. 3 is a drawing showing a carrier (120, 130) and its related configuration according to an embodiment of the present invention.

The actuator (100) of the present invention corresponds to the basic frame structure of the actuator (100) and includes a housing (110) that accommodates the internal configuration, a first carrier (120), a second carrier (130), etc.

The first carrier (120) and/or the second carrier (130) correspond to moving bodies that move linearly based on the optical axis direction (Z-axis direction), and the housing (110) corresponds to a fixed body from a corresponding relative viewpoint. Depending on the embodiment, both the first carrier (120) and the second carrier (130) may move independently in the optical axis direction, and only one of them may be configured to move in the optical axis direction.

As described below, a first magnet (M1) for driving in the direction of the optical axis is mounted on the first carrier (120), and a first mounter (123, 124, see FIG. 4) on which a first lens (R1-1, R1-2) is mounted can be formed. A first coil (C1) is disposed in the housing (110) to face the first magnet (M1) and provide driving force to the first magnet (M1).

In order to correspond to the extended operating area/operating section (stroke) of the first carrier (120), it is preferable that the first coil (C1) be implemented as a plurality of coils (C11, C12) arranged vertically along the optical axis direction as illustrated in the drawing.

When power of an appropriate size and direction is applied to the first coil (C1) under the control of a driving driver (not shown), an electromagnetic force is generated between the first coil (C1) and the first magnet (M1), and the first carrier (120) moves forward and backward in the direction of the optical axis by this generated electromagnetic force.

In this way, when the first carrier (120) moves linearly in the direction of the optical axis, the first lens (R1-1, R1-2) mounted on the first carrier also moves linearly in the direction of the optical axis, so that AF or zoom functions, etc. are implemented according to the relative positional relationship of the lenses.

A metal yoke plate may be provided on the opposite side of the first coil (C1) facing the first magnet (M1) to prevent the electromagnetic force generated in the first coil (C1) from leaking to the outside and to further concentrate it in the direction of the first magnet (M1).

The first Hall sensor (H1) uses the Hall effect to detect the size and direction of the magnetic field generated from the first magnet (M1) in the opposite direction and outputs a corresponding signal to the driving driver.

The driving driver processes the signal input from the first Hall sensor (H1) and controls power to be applied to the first coil (C1) in a size and direction corresponding to the result.

It is preferable that the detection of the first hall sensor (H1) and the control processing of the driving driver be configured to be applied cyclically through feedback control so that the driving precision can be further improved through time-series and continuous control.

The driving driver can be implemented as an independent electronic component, element, etc., but it can also be implemented as a single electronic component (chip) integrated with the first Hall sensor (H1), etc., through a SOC (System On Chip).

In addition, the first coil (C1), the first hall sensor (H1), etc. can be mounted on a circuit board (150) (FPCB) that electrically/signally interfaces with external modules, power supplies, external devices, etc.

According to the embodiment, a plurality of carriers (120, 130) that move linearly along the optical axis as illustrated in the drawing may be provided. The configurations described above with respect to the linear movement of the first carrier (120), etc., can also be applied to the configurations (second coil (C2), second hall sensor (H2), second magnet (M2), etc.) related to the linear movement of another carrier, the second carrier (130), and therefore, a detailed description thereof will be omitted.

It is preferable that a ball (B) be placed between the first carrier (120) and the housing (110) so that the first carrier (120) can move linearly more flexibly with minimized friction.

It is preferable that a ball (B) be placed between the first guiding rail (126, see FIG. 4) provided at the bottom of the first carrier (120) and the groove rail (111) provided on the bottom surface of the housing (110) so that the linear movement of the first carrier (120) is effectively induced.

In this case, it is preferable that the ball (B) be configured so that a portion thereof is accommodated in at least one of the home rail (111) and/or the first guiding rail (126) so that effective guiding for linear movement is implemented.

In this way, when a ball (B) is intervened, the first carrier (120) can move linearly more flexibly due to minimized friction caused by the ball's rolling, moving, rotation, point-contact with a facing object, etc., and it can have the advantage of reducing noise, minimizing driving force, and improving driving precision.

From a corresponding perspective, it goes without saying that a ball (B) can also be placed between the second guiding rail (136, see FIG. 4) provided at the lower portion of the second carrier (130) and the home rail (111) of the housing (110).

When both the first carrier (120) and the second carrier (130) are driven independently, based on the embodiment illustrated in FIG. 3, when the first carrier (120) moves linearly in the optical axis direction, the first lens (R1-1, R1-2) mounted on the first carrier (120) moves in the optical axis direction, and when the second carrier (130) moves, the second lens (R2-1, R2-2) mounted on the second carrier (130) moves accordingly in the optical axis direction.

It goes without saying that the number of lenses mounted on the first carrier (120) or the second carrier (130) may be different from the number illustrated in the drawing, depending on the embodiment, including a form in which only the second lens (R2-2) positioned between the first lenses (R1-1, R1-2) mounted on the first carrier (120) (based on the optical axis direction) is mounted on the second carrier (130).

FIG. 4 is a drawing showing a detailed configuration of a first carrier (120) and the like according to one embodiment of the present invention.

As illustrated in FIG. 4, the first carrier (120) of the present invention may be configured to include a first support member (121) made of a high-strength material such as metal to enhance the durability of the first carrier (120), and a first body part (122) in which the first support member (121) is inserted and molded (injection molding, etc.).

The first support member (121) may be formed in a form including a plurality of units depending on the embodiment, but it is preferable to form it in an integrated form as shown in the drawing in order to increase durability and efficiency of assembly molding.

The first carrier (120), specifically the first body part (122) forming the overall shape or structure of the first carrier (120), may be implemented by a method such as injection molding in which the first support member (121) is inserted, and is configured such that the first part (121a), which is a part of the first support member (121), is exposed as illustrated in the drawing. According to an embodiment, the first carrier (120) may have a first space (125) in which the first part (121a) is exposed.

The first part (121a) is a portion facing the second carrier (130), and since it is a portion of the first support member (121) that is exposed to the outside, the thickness or volume of the portion facing the second carrier (130) can be reduced.

In addition, the first carrier (120) includes a first guiding space (120A) formed on the opposite side of the first part (121a) or the first space (125) based on the optical axis. As described below, this first guiding space (120A) corresponds to the second part (131a) of the second support member (131) belonging to the second carrier (130) and guides the second part (131a).

The first carrier (120) includes one or more first mounters (123, 124) on which the first lenses (R1-1, R1-2) are mounted so that a single number or a plurality of first lenses (R1-1, R1-2) are installed spaced apart from each other and are spaced apart from each other based on the optical axis direction.

The first mounter (123, 124) may be configured as a space formed by the first body part (122), and depending on the embodiment, may be configured as a space formed by a part in which the first support member (121) is exposed together with a part by the first body part (122).

As shown in the drawing, when the bottom surface (based on the X-axis) of the first mounter (123, 124) is configured as a part where the first support member (121) is exposed, the height (based on the X-axis) can be lowered, so the thickness direction size of the actuator (100) itself (thickness of the mobile terminal) can be reduced.

As described above, a first guiding rail (126) on which a ball (B) is placed is formed at the lower part (based on the X-axis) of the first carrier (120), and depending on the embodiment, a metal yoke plate (not shown) provided in the housing (110) and a suction magnet (Ma) that generates a force may be provided.

The first carrier (120) is formed on the opposite side of the first part (121a) based on the optical axis, and may include a first mounting portion (127) on which a first magnet (M1) facing the first coil (C1) provided in the housing (110) is mounted.

In this case, as shown in the lower drawing of FIG. 4, it is preferable that the first guiding space (120A) be formed between the first mounting portion (127) and the first mounter (123).

When configured in this manner, the first carrier (120) and the second carrier (130) can move independently, and each of the partial configurations can be implemented in a physical structure in which they intersect or overlap/stack without applying an additional physical structure for guiding, thereby further increasing space utilization.

FIG. 5 is a drawing showing a detailed configuration of a second carrier (130) and the like according to one embodiment of the present invention.

The second carrier (130) has a structure corresponding to the first carrier (120) described above, but is configured to have a structure or shape that is symmetrical overall with the first carrier (120).

Specifically, the second carrier (130) includes a second body part (132) in which the second support member (131) is inserted and formed so that the second part (131a), which is a part of the second support member (131), is exposed.

The second part (131a) of the second support member (131) exposed through the second space (135) etc. is the part facing the first carrier (120) described above, and is configured so that the second support member (131) is exposed to the outside as it is, so that the thickness or volume of the part facing the first carrier (120) can be reduced.

Additionally, the second carrier (130) is formed in the opposite direction (based on the Y-axis) of the second part (131a) and includes a second guiding space (130A) that guides the first part (121a) of the first carrier (120).

The second part (131a) and the second guiding space (130A) of the second carrier (130) are located in opposite directions to the first part (121a) and the first guiding space (120A) of the first carrier (120) described above.

For example, when the first part (121a) of the first carrier (120) is located in the left direction (based on the Y-axis direction) of the first carrier (120), the second guiding space (130A) of the second carrier (130) that guides the first part (121a) exposed through the first space (125) or the like is also located in the left direction.

In addition, in this case, the first guiding space (120A) of the first carrier (120), that is, the first guiding space (120A) that guides the second part (131a) of the second support member (131) that is exposed through the second space (135) as a configuration belonging to the second carrier (130), is located in the right direction (based on the Y-axis direction) of the first carrier (120).

The second carrier (130) includes m second mounters (133, 134) on which lenses are mounted (m is a natural number greater than or equal to 1), and at least one of the second mounters (133, 134) is configured to be positioned between the plurality of first mounters (123, 124) (based on the optical axis direction (Z-axis)).

When configured in this manner, since at least one of the second lenses (R2-1, R2-2) is positioned between a plurality of first lenses (e.g., R1-1, R1-2) that move together while maintaining the same interval, various combinatorial applications according to the movement of the plurality of lenses are possible.

The second mounter (133, 134) may be configured as a space formed by the second body part (132), and depending on the embodiment, may be configured as a space formed by a part in which the second support member (131) is exposed together with a part by the second body part (132).

As shown in the drawing, when the bottom surface (based on the X-axis) of the second mounter (133, 134) is configured as a part where the second support member (131) is exposed, the height (based on the X-axis) can be lowered, so the thickness direction size (thickness of the mobile terminal) of the actuator (100) itself can be reduced.

A second guiding rail (136) on which a ball (B) is placed is formed at the bottom (based on the X-axis) of the second carrier (120), and depending on the embodiment, a metal yoke plate (not shown) provided in the housing (110) and a suction magnet (Ma) that generates a force may be provided.

The second carrier (130) may include a second mounting portion (137) formed on the opposite side (based on the Y-axis) of the second part (131a) and having a second magnet (M2) mounted thereon facing the second coil (C2) provided in the housing (110). In this case, as illustrated in FIG. 5, it is preferable that the second guiding space (130A) be formed between the second mounting portion (137) and the second mounter (134).

FIG. 6 is a drawing showing the first and second carriers (120, 130) combined, and FIGS. 7 and 8 are drawings showing the relationship in which the first carrier (120) and the second carrier (130) are combined.

FIG. 6 illustrates an embodiment of an actuator (100) in which both the first carrier (120) and the second carrier (130) move independently in the optical axis direction and a plurality of lenses are installed on each carrier (120, 130).

As shown in Fig. 6, when the first carrier (120) moves in the optical axis direction, a plurality of first lenses (R1-1, R1-2) physically spaced apart by the designed distance move in the optical axis direction while maintaining the spaced distance.

Independently, when the second carrier (130) moves forward and backward in the optical axis direction, a plurality of second lenses (R2-1, R2-2) spaced apart by an appropriate distance move in the optical axis direction. Depending on the independent movement of each carrier, various combinations are applied according to the relative distances of the first lenses (R1-1, R1-2) and the second lenses (R2-1, R2-2), and through this, a zoom function with a continuously changing magnification is implemented.

The first carrier (120) and the second carrier (130) do not occupy their own independent, individual spaces, but are configured so that a significant portion of the space overlaps or intersects each other through the structural application of the present invention described above.

That is, the first carrier (120) and the second carrier (130) are configured so that some of the movement sections overlap through mutual guiding between the first part (121a) and the second guiding space (130A) and between the second part (131a) and the first guiding space (120A).

In addition, the first carrier (120) and the second carrier (130) have a structure in which relatively thin objects and corresponding configurations face each other compared to injection structures such as the first part (121a) and the second part (131a), so that space efficiency can be further increased.

As illustrated in FIGS. 7 and 8, the first part (121a) of the first support member (121) belonging to the first carrier (120) is seated in the second guiding space (130A) of the second carrier (130), and in this process, the second part (131a) of the second support member (131) belonging to the second carrier (130) can be introduced into the first guiding space (120A) of the first carrier (120).

In order to more effectively implement such a mutually corresponding structure, one of the first guiding space (120A) or the second guiding space (130A) may be configured to have a shape in which the upper part (based on the X-axis) is blocked and the lower part is open, and the other may be configured to have a shape in which the upper part is open and the lower part is blocked, on the contrary.

As an example of this, the drawing shows an embodiment in which the first carrier (120) is positioned above the second carrier (130). In this case, the first part (121a) of the first carrier (120) is positioned in the second guiding space (130A) of the second carrier (130), and the first guiding space (120A) of the first carrier (120) is positioned in the second part (131a) of the second carrier (130), and the two carriers can be assembled in a simple manner by coupling the first carrier (120) toward the second carrier (130), thereby increasing the efficiency of the assembly process.

When assembled in this way, the first part (121a) and the second part (131a), which are considerably thinner than the injection-molded material as part of the inserted structure, face each other through the corresponding second guiding space (130A) and the first guiding space (120A) of different carriers, so that the length in the width direction (Y-axis direction) can also be reduced, thereby further increasing the space adaptability.

In addition, since the first carrier (120) or/and the second carrier (130) are physically supported by a support member having high rigidity such as a metal material and being inserted, not only is the rigidity of the carrier itself increased, but physical deformation of each carrier or tilting along the optical axis can be more effectively suppressed.

Although the present invention has been described above with reference to limited embodiments and drawings, the present invention is not limited thereto, and various modifications and variations are possible by a person having ordinary skill in the art to which the present invention pertains within the scope of the technical idea of the present invention and the equivalent scope of the patent claims to be described below.

In the description of the present invention described above, modifiers such as first and second are merely instrumental conceptual terms used to relatively distinguish components from each other, and should be interpreted as not being terms used to indicate a specific order, priority, etc.

The drawings attached for the purpose of explaining the present invention and illustrating embodiments thereof may be illustrated in a somewhat exaggerated form to emphasize or highlight the technical contents of the present invention. However, it should be interpreted that it is obvious that various modified application examples may be possible at the level of a person skilled in the art in consideration of the contents described above and matters illustrated in the drawings.

1000: Camera module 30: Image sensor
200: Reflectometer module 210: Reflectometer
100: Actuator 110: Housing
111: Home Rail
120: First carrier
120A: First guiding space 121: First support member
121a: Part 1 122: Body Part 1
123, 124: 1st mounter 125: 1st space
126: First guiding rail 127: First loading section
130: First carrier
130A: Second guiding space 131: Second support member
131a: Part 2 132: Part 2 of the body
133, 134: Second Mounter 135: Second Space
136: Second guiding rail 137: Second loading section
150: Circuit board B: Ball
M1: First magnet M2: Second magnet
C1: First coil C2: Second coil
H1: First Hall sensor H2: Second Hall sensor
R1-1, R1-2: First lens R2-1, R2-2: Second lens

Claims (7)

A first carrier including a first support member including a first part, a first body part in which the first support member is inserted and formed, and a first guiding space formed on the opposite side of the first part based on the optical axis, and moving in the direction of the optical axis based on the housing; and
A second carrier including a second supporting member including a second part, a second body part in which the second supporting member is inserted and formed, and a second guiding space formed on the opposite side of the second part based on the optical axis,
The first support member is inserted into the first body part so that the first part, which is a part of the first support member, is exposed,
The second support member is inserted into the second body part so that the second part, which is a part of the second support member, is exposed,
An actuator for driving a zoom, characterized in that the first part is guided by the second guiding space, and the second part is guided by the first guiding space. In the first paragraph, the first carrier,
It includes multiple first mounters, each of which has multiple lenses mounted on it and is spaced apart from each other based on the optical axis direction,
A zoom actuator characterized in that the second carrier includes m (m is a natural number greater than or equal to 1) second mounters on which lenses are mounted, and at least one of the second mounters is positioned between the plurality of first mounters. In the second paragraph, the first carrier,
It includes a first mounting part formed on the opposite side of the first part based on the optical axis and having a first magnet mounted thereon facing the first coil provided in the housing,
An actuator for driving a zoom, characterized in that the first guiding space is formed between the first mounter and the first mounting portion. In the second paragraph, the second carrier,
It includes a second mounting part formed on the opposite side of the second part based on the optical axis and having a second magnet mounted thereon facing the second coil provided in the housing.
An actuator for driving a zoom, characterized in that the second guiding space is formed between the second mounter and the second mounting portion. In the first paragraph, the first and second guiding spaces are
An actuator for zoom driving characterized in that the directions of the open portions are opposite to each other with respect to the upper and lower portions. In the first paragraph,
A zoom actuator characterized in that it further includes a ball disposed between the first carrier and the housing or between the second carrier and the housing. In the first paragraph, the first and second carriers,
An actuator for zoom driving, characterized in that a portion of the moving section overlaps through mutual guiding between the first part and the second guiding space and between the second part and the first guiding space.