KR20230148928A - Actuator for driving zoom - Google Patents

Abstract

The actuator for zoom driving according to the present invention includes a first support member, a first body portion into which the first support member is inserted and molded so that the first part, which is a part of the first support member, is exposed, and the first body portion with respect to the optical axis. A first carrier including a first guiding space formed on the opposite side of one part and moving in the direction of the optical axis with respect to the housing; And a second support member, a second body portion formed by inserting the second support member so that the second part, which is a part of the second support member, is exposed, and a second body portion formed in the opposite direction of the second part with respect to the optical axis. It includes a second carrier including a second guiding space, wherein the first part is guided by the second guiding space, and the second part is guided by the first guiding space. Do it as

Description

Actuator for driving zoom {ACTUATOR FOR DRIVING ZOOM}

The present invention relates to an actuator for zoom driving, and more specifically, to a zoom driving actuator that can further improve space utilization according to the extended moving distance of the lens.

As hardware technology for image processing develops and user needs for video shooting increase, autofocus (AF) and camera modules mounted on mobile terminals such as mobile phones and smartphones, as well as independent camera devices, prevent camera shake. Functions such as OIS (Optical Image Stabilization) are being implemented.

In addition, recently, an actuator for driving a zoom that can vary the size of the subject through zoom-in and zoom-out functions has been disclosed, and depending on the embodiment, a plurality of lenses (lens assembly) have been disclosed. ) An actuator that implements more diverse AF or/and zoom functions by applying the mutual positional relationship in combination has also been disclosed.

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

However, in the case of the conventional actuator, it is implemented only in a way that the independent movement space of each of the plurality of carriers is individually secured, so space utilization is not high, so it is difficult to optimize it for mobile terminals.

In addition, in the case of an actuator for zoom driving, not only does the moving distance of the carrier on which the lens is mounted increase, but depending on the embodiment, the length of the carrier itself is extended to mount a plurality of lenses, so it is continuously exposed to environmental changes, external shocks, etc. In this case, driving performance may be deteriorated due to distortion, tilting, or loss of linearity of the carrier itself.

Considering the recent trend of mobile terminals increasing in configuration to provide various functions, it can be said that spatial constraints within mobile (portable) terminals are becoming more severe.

Therefore, in the case of actuators that are complex and relatively large in size, such as those for continuous-zoom, space efficiency not only becomes a more important issue, but can also be a key factor that can dramatically increase the applicability in mobile devices.

The present invention was created to solve the above-described problems against the above background, and its purpose is to provide an actuator for zoom driving that not only maintains the drive of the carrier more stably but also realizes more effective spatial utilization of the actuator. there is.

Other objects and advantages of the present invention can be understood from the description below, and will be more clearly understood through embodiments of the present invention. In addition, the objects and advantages of the present invention can be realized by the configuration indicated in the patent claims and the combination of the configuration.

The actuator for zoom driving of the present invention for achieving the above object includes a first support member, a first body portion into which the first support member is inserted and molded so that the first part, which is a part of the first support member, is exposed, and an optical axis. A first carrier that includes a first guiding space formed on the opposite side of the first part and moves in the optical axis direction with respect to the housing; and a second support member, a second body portion formed by inserting the second support member so that the second part, which is a part of the second support member, is exposed, and a second body portion formed on the opposite side of the second part based on the optical axis. It includes a second carrier including two guiding spaces, and in this case, the first part is guided by the second guiding space, and the second part is configured to be guided by the first guiding space. do.

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

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

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

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

Depending on the embodiment, the present invention may further include a ball disposed between one or more of the first carrier and the housing or the second carrier and the housing.

In addition, the first and second carriers of the present invention overlap with some of the movement sections through mutual guiding between the first part and the second guiding space and between the second part and the first guiding space. It can be configured as follows.

According to one embodiment of the present invention, by improving the physical structure in such a way that some of the carriers intersect or overlap each other, independent movement of each of the plurality of carriers can be effectively secured, as well as the structure and shape of the entire device. can be implemented in a more space-intensive form, which can be further optimized for minimizing the overall space and miniaturizing mobile terminals.

According to one embodiment of the present invention, in order to improve the durability of the carrier, etc., a structure is formed on 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 on one carrier is formed on another carrier. By arranging a plurality of carriers by intersecting them in the carrier's guiding space, not only space utilization but also the efficiency of the assembly process can be further improved.

According to one embodiment of the present invention, not only can the durability of the carrier be effectively improved through the inserted support member, but the guiding space of each carrier is formed between the mounter on which the lens is mounted and the mounting portion on which the magnet is mounted. By doing so, physically interfering structures can be fundamentally excluded, allowing independent operation of the carrier to be implemented more stably.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and together with the detailed description of the invention described later, serve to more effectively understand the technical idea of the present invention, so the present invention is described in these drawings. It should not be interpreted as limited to the specific details.
1 is a diagram showing the overall configuration of a zoom actuator and a camera module according to a preferred embodiment of the present invention;
Figure 2 is a diagram showing the overall configuration of an actuator for zoom driving according to a preferred embodiment of the present invention;
Figure 3 is a diagram showing a carrier and its related configuration according to an embodiment of the present invention;
4 is a diagram showing the detailed configuration of a first carrier, etc. according to an embodiment of the present invention;
5 is a diagram showing the detailed configuration of a second carrier, etc. according to an embodiment of the present invention;
Figure 6 is a diagram showing the first and second carriers combined;
Figures 7 and 8 are diagrams showing the relationship in which a first carrier and a 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, the terms or words used in this specification and claims should not be construed as limited to their usual or dictionary meanings, and the inventor should appropriately define the concept of terms in order to explain his or her invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle of definability.

Therefore, the embodiments described in this specification and the configuration shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, and therefore, various equivalents that can replace them at the time of filing the present application It should be understood that variations and variations may exist.

Figure 1 is a diagram 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.

Of course, the actuator 100 of the present invention can be implemented as a single device itself, and can also be implemented as a camera module 1000 that includes a reflectometer module 200, etc., as shown in FIG. 1.

As will be described later, the actuator 100 of the present invention performs functions such as auto focus (AF) or continuous zoom (Zoom) by linearly moving one or more carriers on which lenses (lens assemblies) are mounted in the optical axis direction. Corresponds to the actuator being implemented.

The reflectometer module 200, which may be provided in front or above the actuator 100 (optical axis direction, based on the Z-axis direction in the drawing), converts the light path (Z1) of the subject into the path (Z) in the lens direction. It performs the function of reflection or refraction. In this way, the light reflected or refracted in the optical axis direction flows into the image sensor 30, such as CMOS or CCD, through a lens (lens assembly) provided on the carriers 120 and 130.

The reflectometer module 200 that changes the path of light may include a reflectometer 210 that may be made of one selected from a mirror or a prism or a combination thereof. This reflection system 210 can be implemented by various members that can change the direction of the optical axis of light coming from the outside world, but it is preferable to implement it with a glass material to improve optical performance.

The camera module 1000 of the present invention, which includes the reflectometer module 200, etc., is configured to refract the light path and allow light to flow in the direction of the lens, so the device itself can be installed in the thickness direction of the portable terminal (smartphone, etc.) Since it can be installed in the longitudinal direction without increasing the thickness of the mobile terminal, it can be optimized for miniaturization or slimming of the mobile terminal.

Depending on the embodiment, the reflectometer 210 may be configured to rotate and move by a driving means that generates magnetic force, such as a magnet and a coil (C3, see FIG. 2), and a position 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 the Alternatively, Y-axis direction correction may be implemented.

The light of the subject reflected through the reflectometer module 200 is transmitted through one or more lenses (R2-1, R1-1, R2) mounted on one or more carriers (120, 130) that move linearly based on the optical axis direction (Z-axis). -2, R1-2, etc.), and functions such as zoom or AF are implemented by adjusting the position of one or more lenses (based on the optical axis direction) in combination by the actuator 100 of the present invention.

In the drawing, two carriers 120 and 130 are shown that move the housing 110 in the optical axis direction as a relative fixture. However, this is an example, and of course, a different number of carriers may be provided, and optical specifications or Depending on performance, etc., a fixed lens may be provided in the housing 110, etc.

In the following description of the present invention, the direction axis corresponding to the path through which light flows into a lens, etc. is defined as the optical axis (Z-axis), and the two axes perpendicular to this optical axis (Z-axis) are defined as the X-axis and Y-axis.

FIG. 2 is a diagram showing the overall configuration of the actuator 100 according to a preferred embodiment of the present invention, and FIG. 3 is a diagram showing the carriers 120 and 130 and configurations related thereto according to an embodiment of the present invention. am.

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

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

As will be described later, the first carrier 120 is equipped with a first magnet (M1) for driving in the optical axis direction, and the first mounters (123, 124, FIG. 4) 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).

To correspond to the expanded movable area/movement section (stroke) of the first carrier 120, the first coil C1 includes a plurality of coils arranged up and down along the optical axis direction as illustrated in the drawing ( It is desirable to implement it as C11, C12).

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

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

To prevent the electromagnetic force generated in the first coil (C1) from leaking to the outside and to be more concentrated in the direction of the first magnet (M1), a metal material is used in the opposite reflection of the first coil (C1) facing the first magnet (M1). A yoke plate may be provided.

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 calculates and processes the signal input from the first Hall sensor (H1) and controls the result so that power of a magnitude and direction corresponding to the result is applied to the first coil (C1).

The detection of the first Hall sensor H1 and the control processing of the driving driver are preferably configured to be applied cyclically through feedback control so that driving precision can be further improved through time-series and continuous control.

The driving driver may be implemented as an independent electronic component or device, but may also be implemented as a single electronic component (chip) integrated with the first Hall sensor (H1) through SOC (System On Chip). Of course.

In addition, the first coil (C1), the first Hall sensor (H1), etc. may be mounted on the circuit board (FPCB) 150 (FPCB) that is electrically/signally interfaced with external modules, power supplies, external devices, etc. Of course.

Depending on the embodiment, as illustrated in the drawing, a plurality of carriers 120 and 130 that linearly move along the optical axis may be provided. The configurations described above in relation to the linear movement of the first carrier 120 are configurations related to the linear movement of the second carrier 130, which is another carrier (second coil (C2), second Hall sensor (H2), Since it can also be applied to 2 magnets (M2), etc., detailed descriptions of these are omitted.

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

A first guiding rail (126, see FIG. 4) provided on the lower part of the first carrier 120 and a groove rail provided on the bottom of the housing 110 to effectively guide the linear movement of the first carrier 120. It is preferable that the ball B is placed between (111).

In this case, the ball B is configured so that a portion of it is accommodated in one or more of the groove rail 111 and/or the first guiding rail 126 so that effective guiding for linear movement is implemented. It is desirable.

In this way, when the ball B is interposed, the first carrier 120 ) can move linearly more flexibly and have the advantage of reducing noise and minimizing driving force, as well as improving driving precision.

From a corresponding viewpoint, the ball B can also be placed between the second guiding rail 136 (see FIG. 4) provided at the lower part of the second carrier 130 and the groove rail 111 of the housing 110. Of course it exists.

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

Only the second lens (R2-2) located between the first lenses (R1-1, R1-2) mounted on the first carrier 120 (based on the optical axis direction) is provided on the second carrier 130. Of course, depending on the embodiment, 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.

Figure 4 is a diagram showing the detailed configuration of the first carrier 120 according to an embodiment of the present invention.

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

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

The first carrier 120, specifically the first body portion 122 that forms the overall shape or structure of the first carrier 120, is implemented by a method such as injection molding into which the first support member 121 is inserted. It can be configured so that the first part 121a, which is a part of the first support member 121, is exposed as shown in the drawing. Depending on the embodiment, the first carrier 120 may have a first space 125 where the first part 121a is exposed.

The first part 121a is a part facing the second carrier 130, and is a part of the first support member 121 that is exposed to the outside, so it can reduce the thickness or volume of the part facing the second carrier 130. You can.

Additionally, 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 will be described later, this first guiding space (120A) is a space corresponding to the second part (131a) of the second support member 131 belonging to the second carrier 130 and guides the second part (131a). do.

The first carrier 120 is equipped with first lenses (R1-1, R1-2) so that a single or multiple first lenses (R1-1, R1-2) are installed spaced apart from each other, and based on the optical axis direction, It includes one or more first mounters 123 and 124 that are spaced apart from each other.

The first mounters 123 and 124 may be composed of a space formed by the first body portion 122, and depending on the embodiment, the first support member 121 together with the parts formed by the first body portion 122. It may be composed of a space formed by exposed parts.

As shown in the drawing, when the bottom surface (based on the (100) It is possible to reduce its size in the thickness direction (thickness of the mobile terminal).

As previously described, a first guiding rail 126 on which balls B are disposed is formed in the lower part (based on the A yoke plate (not shown) made of material and a suction magnet (Ma) that generates attractive force may be provided.

The first carrier 120 is formed on the side opposite to the first part 121a based on the optical axis, and is equipped with a first magnet M1 facing the first coil C1 provided in the housing 110. It may include a first mounting unit 127.

In this case, as shown in the drawing below in FIG. 4, the first guiding space 120A is preferably formed between the first mounting part 127 and the first mounter 123.

When configured in this way, not only can the first carrier 120 and the second carrier 130 move independently, but also some parts of each can cross or overlap/intersect with each other without applying additional physical structures for guiding. It can be implemented as a stacked physical structure, which can further increase space utilization.

Figure 5 is a diagram showing the detailed configuration of the second carrier 130 according to an embodiment of the present invention.

The second carrier 130 has an overall structure that corresponds to the above-described first carrier 120, and is configured to have a structure or shape that is generally symmetrical to the first carrier 120.

Specifically, the second carrier 130 is formed by inserting the second support member 131 so that the second support member 131 and the second part 131a, which is a part of the second support member 131, are exposed. Includes a second body portion 132.

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

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

The second part (131a) and the second guiding space (130A) of the second carrier 130 are the first part (121a) and the first guiding space (120A) of the previously described first carrier 120, respectively. It is located in the opposite direction.

For example, when the first part 121a of the first carrier 120 is located on the left side (based on the Y-axis direction) of the first carrier 120, the first part 121a exposed through the first space 125, etc. The second guiding space 130A of the second carrier 130 that guides the first part 121a 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 second support member 131 that belongs to the second carrier 130 and is exposed through the second space 135, etc. The first guiding space 120A for guiding the second part 131a is located on the right side (based on the Y-axis direction) of the first carrier 120.

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

In the case of this configuration, one of the second lenses (R2-1, R2-2) is provided between the plurality of first lenses (e.g., R1-1, R1-2) that move together while maintaining the same spacing. Since the above is located, various combinatorial applications are possible according to the movement of a plurality of lenses.

The second mounters 133 and 134 may be composed of a space formed by the second body 132, and depending on the embodiment, the second support member 131 together with the parts formed by the second body 132. It may be composed of a space formed by exposed parts.

As shown in the drawing, when the bottom surface (based on the (100) It is possible to reduce its size in the thickness direction (thickness of the mobile terminal).

A second guiding rail 136 on which balls B are disposed is formed at the lower part of the second carrier 120 (based on the (not shown) and a suction magnet (Ma) that generates attractive force may be provided.

The second carrier 130 is formed on the side in the opposite direction (based on the Y axis) of the second part 131a and is equipped with a second magnet (M2) facing the second coil (C2) provided in the housing 110. It may include a second mounting unit 137. In this case, as shown in FIG. 5, the second guiding space 130A is preferably formed between the second mounting part 137 and the second mounter 134.

Figure 6 is a diagram showing the first and second carriers 120 and 130 combined, and Figures 7 and 8 show the relationship in which the first carrier 120 and the second carrier 130 are combined. It is a drawing.

Figure 6 shows an embodiment of the 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 and 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 a designed distance are moved in the optical axis direction while maintaining the spaced apart distance. Go to

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

The first carrier 120 and the second carrier 130 do not occupy their own separate 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 between the first part (121a) and the second guiding space (130A) and between the second part (131a) and the first guiding space ( 120A), some of the movement sections overlap through mutual guiding.

In addition, the first carrier 120 and the second carrier 130 are structures in which relatively thin objects and corresponding components face each other compared to the injection structure, such as the first part 121a and the second part 131a. Therefore, 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 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) may flow into the first guiding space (120A) of the first carrier (120). there is.

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

As an example of this, the drawing shows an embodiment in which the first carrier 120 is located on top of the second carrier 130. In this case, the first part 121a of the first carrier 120 is in the second guiding space 130A of the second carrier 130, and the first guiding space 120A of the first carrier 120 is in the second guiding space 130A of the second carrier 130. Both carriers can be assembled by a simple method of positioning the second part (131a) of the second carrier (130) and combining the first carrier (120) in the direction of the second carrier (130), thereby increasing the efficiency of the assembly process. there is.

When assembled in this way, the first part (121a) and the second part (131a), which are parts of the inserted structure and are considerably thinner than the injection molded product, are connected to the corresponding second guiding space (130A) and first guiding space of different carriers. Since they face each other through (120A), the length in the width direction (Y-axis direction) can also be reduced, further improving spatial adaptability.

In addition, since the first carrier 120 and/or the second carrier 130 has high rigidity, such as a metal material, and is physically supported by an inserted support member, the rigidity of the carrier itself increases as well as the physical deformation of each carrier. or tilting on the optical axis can be suppressed more effectively.

Although the present invention has been described above with limited examples and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the description below will be understood by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalence of the patent claims.

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

The drawings attached to explain the present invention and illustrate its embodiments may be shown in a somewhat exaggerated form in order to emphasize or highlight the technical content of the present invention, but the contents described above and the matters shown in the drawings, etc. Considering this, it should be interpreted as obvious that various types of modifications and application examples may be possible at the level of a person skilled in the art.

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: first part 122: first body part
123, 124: 1st mounter 125: 1st space
126: first guiding rail 127: first mounting unit
130: first carrier
130A: Second guiding space 131: Second support member
131a: second part 132: second body part
133, 134: 2nd mounter 135: 2nd space
136: 2nd guiding rail 137: 2nd mounting unit
150: Circuit board B: Ball
M1: 1st magnet M2: 2nd magnet
C1: 1st coil C2: 2nd coil
H1: 1st Hall sensor H2: 2nd Hall sensor
R1-1, R1-2: 1st lens R2-1, R2-2: 2nd lens

Claims (7)

A first support member, a first body portion formed by inserting the first support member so that the first part, which is a part of the first support member, is exposed, and a first body portion formed on the opposite side of the first part with respect to the optical axis. A first carrier that includes a guiding space and moves in the direction of the optical axis with respect to the housing; and
A second support member, a second body portion formed by inserting the second support member so that the second part, which is a part of the second support member, is exposed, and a second body formed on the opposite side of the second part based on the optical axis. It includes a second carrier including a guiding space,
The first part is guided by the second guiding space, and the second part is guided by the first guiding space. The method of claim 1, wherein the first carrier is:
It includes a plurality of first mounters on which a plurality of lenses are each mounted and are spaced apart from each other based on the optical axis direction,
The second carrier includes m second mounters on which lenses are mounted (m is a natural number of 1 or more), and at least one of the second mounters is located between the plurality of first mounters. Actuator. The method of claim 2, wherein the first carrier is:
It is formed on a side opposite to the first part with respect to the optical axis and includes a first mounting part on which a first magnet facing the first coil provided in the housing is mounted,
An actuator for zoom driving, wherein the first guiding space is formed between the first mounter and the first mounting part. The method of claim 2, wherein the second carrier is:
It is formed on a side opposite to the second part with respect to the optical axis and includes a second mounting part on which a second magnet facing the second coil provided in the housing is mounted,
An actuator for zoom driving, wherein the second guiding space is formed between the second mounter and the second mounting part. The method of claim 1, wherein the first and second guiding spaces are,
An actuator for zoom driving, characterized in that the directions of the opening areas are opposite to each other based on the upper and lower parts. According to paragraph 1,
An actuator for zoom driving, further comprising a ball disposed between the first carrier and the housing or between the second carrier and the housing. The method of claim 1, wherein the first and second carriers are:
An actuator for zoom driving, wherein a portion of the movement section overlaps through mutual guiding between the first part and the second guiding space and between the second part and the first guiding space.

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