Camera device and optical apparatus

Abstract

The present embodiment relates to a camera device comprising: a base; a lens holder coupled to the base; a housing disposed in the lens holder; a bobbin disposed within the housing; a coil and a magnet for moving the bobbin in the direction of the optical axis; a first lens coupled to the bobbin; and a second lens disposed within the lens holder, wherein when the first lens moves, the second lens is fixed to the lens holder.

Description

Technology Field

[0001] This embodiment relates to a camera device and an optical device. Background Technology

[0002] As the distribution of various mobile devices has become widespread and wireless internet services have been commercialized, consumer demands related to mobile devices are also diversifying, leading to the installation of various types of accessory devices on mobile devices.

[0003] A representative example among these is a camera device that captures a subject in photos or videos. Recent camera devices are equipped with an autofocus function that automatically adjusts the focus based on the distance to the subject.

[0004] Furthermore, recently, there has been a trend of increasing the size of image sensors and lenses in accordance with the increase in pixel count of image sensors. However, this increase in lens size increases the weight of the lens, which leads to an increase in the weight of the actuator moved for autofocus operation, posing a problem. (Patent Document 1) KR 10-2020-0082211 A The problem to be solved

[0005] The present embodiment aims to provide a camera device including a structure that reduces the weight of a moving operator during autofocus operation. means of solving the problem

[0006] A camera device according to the present embodiment comprises: a base; a lens holder coupled to the base; a housing disposed in the lens holder; a bobbin disposed within the housing; a coil and a magnet for moving the bobbin in the direction of the optical axis; a first lens coupled to the bobbin; and a second lens disposed within the lens holder, wherein when the first lens moves, the second lens can be fixed to the lens holder.

[0007] The optical axis of the first lens can be aligned with the optical axis of the second lens.

[0008] The second lens may include an upper lens positioned above the first lens.

[0009] The second lens may include a lower lens positioned below the first lens.

[0010] The camera device may include an elastic member connecting the bobbin and the housing.

[0011] The above elastic member may include an upper elastic member and a lower elastic member disposed below the upper elastic member.

[0012] The coil can be placed in the bobbin and the magnet can be placed in the housing.

[0013] The above coil includes a first coil disposed on a first side of the bobbin and a second coil disposed on a second side opposite to the first side of the bobbin, and the upper elastic member may include a first spring and a second spring that are spaced apart from each other and electrically connected to one or more of the first coil and the second coil.

[0014] The first spring may include first and second upper elastic units spaced apart from each other and electrically connected to the first coil, and the second spring may include third and fourth upper elastic units spaced apart from each other and electrically connected to the second coil.

[0015] The lower elastic member includes an inner portion coupled to the bobbin, an outer portion coupled to the housing, and a connecting portion connecting the inner portion and the outer portion, and the lower elastic member may be formed integrally.

[0016] The upper elastic member is formed integrally, and the lower elastic member may include first and second lower elastic units electrically connected to the first coil and the second coil.

[0017] The above-mentioned base includes a terminal disposed thereon, wherein the terminal includes a first portion disposed on the outer surface of the base and a second portion extending from the first portion and disposed on the upper surface of the base, and the upper elastic member may include an inner portion coupled to the bobbin, an outer portion coupled to the upper surface of the housing, a connecting portion connecting the inner portion and the outer portion, an extension portion extending from the outer portion and disposed on the outer surface of the housing, and a coupling portion extending from the outer portion and having at least a portion overlapping with the second portion of the terminal in the optical axis direction.

[0018] The second portion of the above terminal is bent from the first portion, the extension portion of the upper elastic member is bent downward from the first portion of the outer portion, and the coupling portion of the upper elastic member may protrude outward from the second portion of the outer portion which is spaced apart from the first portion of the outer portion.

[0019] The base includes a groove formed on the upper surface of the base, at least a portion of the second part of the terminal is disposed on the bottom surface of the groove of the base, and at least a portion of the coupling part of the upper elastic member may be disposed within the groove of the base.

[0020] A conductive member may be disposed in the groove of the base to electrically connect the coupling portion of the upper elastic member and the second portion of the terminal.

[0021] The above terminal can be formed on the base by insert injection.

[0022] The above magnet includes a first surface facing the coil, and the polarity of the upper part of the first surface of the magnet may be different from the polarity of the lower part of the first surface of the magnet.

[0023] The above bobbin can overlap with the base in a direction perpendicular to the optical axis direction.

[0024] The above housing can be placed within the above base.

[0025] The lower lens may include a lens having a diameter larger than the diameter of the first lens.

[0026] The camera device comprises a cover member including a top plate and a side plate extending from the top plate, wherein the side plate of the cover member is coupled to the base, at least a portion of the housing overlaps the top plate of the cover member in the direction of the optical axis, and a portion of the lens holder may protrude above the top plate of the cover member.

[0027] The camera device comprises a printed circuit board; and an image sensor disposed on the printed circuit board, and the base may be disposed on the printed circuit board.

[0028] An optical device according to the present embodiment may include a main body; a camera device disposed on the main body; and a display disposed on the main body and outputting an image captured by the camera device.

[0029] A camera device according to the present embodiment comprises: a base; a lens holder coupled to the base; a housing disposed in the lens holder; a bobbin disposed within the housing; a coil and a magnet for moving the bobbin in the direction of the optical axis; a first lens coupled to the bobbin; and a second lens disposed within the lens holder, wherein when the first lens moves, the second lens is fixed to the lens holder and the second lens may be disposed on top of the first lens. Effects of the invention

[0030] Through this embodiment, the weight of the moving operator during autofocus operation can be reduced.

[0031] Reducing the weight of the actuator leads to a reduction in momentum generated during external impact, which can improve durability.

[0032] In addition, the amount of deflection caused by the difference in posture can be reduced due to the reduction in the weight of the operator.

[0033] In addition, it has the advantage of easy driving response even if the weight of the lens increases due to the high pixel count.

[0034] In addition, since the driving part is not exposed on the outside of the cover member, the gap between the cover member and the main body of the optical device can be minimized when assembling the cover member to the optical device. Brief explanation of the drawing

[0035] FIG. 1 is a perspective view of a camera device according to the present embodiment. FIG. 2 is a perspective view of FIG. 1 with the cover member omitted. Figure 3 is a cross-sectional view taken from AA in Figure 1. Figure 4 is a cross-sectional view taken from BB of Figure 1. FIG. 5 is a bottom view of a camera device according to the present embodiment. FIG. 6 is an exploded view of a camera device according to the present embodiment. FIG. 7 is an exploded perspective view of a camera device according to the present embodiment, viewed from a different direction than FIG. 6. FIG. 8 is a perspective view of a camera device according to the present embodiment with the cover member omitted. FIG. 9 is a perspective view with some components omitted from FIG. 8. FIG. 10 is a perspective view of FIG. 9 with the auto-focusing drive unit omitted. FIGS. 11 and FIGS. 12 are perspective views illustrating the coupling structure between the upper elastic member and the terminal. FIG. 13 is a perspective view illustrating the base and terminal of a camera device according to the present embodiment. FIG. 14 is a perspective view illustrating a lens module and an auto-focusing driving unit of a camera device according to the present embodiment. FIG. 15 is a perspective view of a lens module of a camera device according to the present embodiment. FIG. 16 is a perspective view of an auto-focusing driving unit of a camera device according to the present embodiment. FIG. 17 is a plan view of a part of the configuration of the auto-focusing driving unit of a camera device according to the present embodiment. FIG. 18 is an exploded perspective view of a part of the auto-focusing driving unit of a camera device according to the present embodiment. FIG. 19 is a perspective view of an elastic member of a camera device according to the present embodiment. FIG. 20 is an exploded view of a camera device according to the present embodiment. FIG. 21 is a perspective view illustrating an optical device according to the present embodiment. FIG. 22 is a configuration diagram of an optical device according to the present embodiment. Specific details for implementing the invention

[0036] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0037] However, the technical concept of the present invention is not limited to some of the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted.

[0038] In addition, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a meaning that is generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms that are commonly used, such as terms defined in advance, may be interpreted in consideration of their meaning in the context of the relevant technology.

[0039] Furthermore, the terms used in the embodiments of the present invention are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0040] In this specification, the singular form may include the plural form unless specifically stated otherwise in the text, and when described as "at least one of A and B and C (or more than one)," it may include one or more of all combinations that can be formed from A, B, and C.

[0041] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are used merely to distinguish the components from other components and are not intended to limit the essence, order, or sequence of the components.

[0042] And, where it is stated that a component is 'connected', 'combined', or 'connected' to another component, this may include not only cases where the component is directly 'connected', 'combined', or 'connected' to the other component, but also cases where it is 'connected', 'combined', or 'connected' due to another component located between the component and the other component.

[0043] Furthermore, when described as being formed or placed "above" or "below" each component, "above" or "below" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Additionally, when expressed as "above" or "below," it may include the meaning of a downward direction as well as an upward direction relative to a single component.

[0045] The configuration of the camera device according to the present embodiment will be described below with reference to the drawings.

[0046] FIG. 1 is a perspective view of a camera device according to the present embodiment, FIG. 2 is a perspective view of FIG. 1 with the cover member omitted, FIG. 3 is a cross-sectional view taken from AA of FIG. 1, FIG. 4 is a cross-sectional view taken from BB of FIG. 1, FIG. 5 is a bottom view of a camera device according to the present embodiment, FIG. 6 is an exploded perspective view of a camera device according to the present embodiment, FIG. 7 is an exploded perspective view of a camera device according to the present embodiment viewed from a direction different from FIG. 6, FIG. 8 is a perspective view of a camera device according to the present embodiment with the cover member omitted, FIG. 9 is a perspective view of FIG. 8 with some components omitted, FIG. 10 is a perspective view of FIG. 9 with the auto-focusing drive unit omitted, FIG. 11 and FIG. 12 are perspective views illustrating a coupling structure between an upper elastic member and a terminal, FIG. 13 is a perspective view illustrating a base and a terminal of a camera device according to the present embodiment, FIG. 14 is a lens module of a camera device according to the present embodiment and FIG. 15 is a perspective view illustrating an autofocus driving unit, FIG. 16 is a perspective view of an autofocus driving unit of a camera device according to the present embodiment, FIG. 17 is a plan view of a part of the autofocus driving unit of a camera device according to the present embodiment, FIG. 18 is an exploded perspective view of a part of the autofocus driving unit of a camera device according to the present embodiment, FIG. 19 is a perspective view of an elastic member of a camera device according to the present embodiment, and FIG. 20 is an exploded perspective view of a camera device according to the present embodiment.

[0047] The camera device may include a substrate (10). The substrate (10) may be a printed circuit board (PCB). The substrate (10) may include an upper surface. An image sensor and a sensor base (40) may be disposed on the upper surface of the substrate (10). The substrate (10) may include a terminal (11). The terminal (11) of the substrate (10) may be electrically connected to a base terminal (400) through a conductive member.

[0048] The camera device may include an image sensor. The image sensor may be placed on a substrate (10). The image sensor may be placed on the substrate (10). The image sensor may be placed on the upper surface of the substrate (10). The image sensor may be electrically connected to the substrate (10). For example, the image sensor may be coupled to the substrate (10) by Surface Mounting Technology (SMT). As another example, the image sensor may be coupled to the substrate (10) by flip chip technology. The image sensor may be positioned so that its optical axis coincides with that of the first and second lenses (220, 230). That is, the optical axis of the image sensor and the optical axis of the first and second lenses (220, 230) may be aligned. The image sensor may convert light incident on the effective image area of ​​the image sensor into an electrical signal. The image sensor can be any one of a CCD (charge coupled device), MOS (metal oxide semiconductor), CPD, and CID.

[0049] The camera device may include a connector (20). The connector (20) may be connected to the substrate (10) through a connecting substrate (30). The connector (20) may include a port for electrically connecting to an external device.

[0050] The camera device may include a sensor base (40). The sensor base (40) may be positioned between the base (100) and the substrate (10). A filter (50) may be positioned on the sensor base (40). An opening may be formed in the portion of the sensor base (40) where the filter (50) is positioned so that light passing through the filter (50) can be incident on the image sensor.

[0051] The camera device may include a filter (50). The filter (50) may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor. The infrared filter may reflect infrared light. Alternatively, the infrared filter may absorb infrared light. The infrared filter may be placed between the lens module (200) and the image sensor. The infrared filter may be placed on the sensor base (40).

[0052] The camera device may include a base (100). The base (100) may be placed on a substrate (10). The base (100) may be placed on a sensor base (40). The base (100) may be placed on the upper surface of the sensor base (40). The base (100) may be coupled to the sensor base (40). The base (100) may be coupled to a lens module (200). The base (100) may be placed within a cover member (800). The base (100) may be formed of an insulating material. The base (100) may wrap at least a portion of the housing (311). The base (100) may overlap the housing (311) in a direction perpendicular to the optical axis.

[0053] The base (100) may include a groove (110). The groove (110) may be formed on the upper surface of the base (100). A conductive member that electrically connects the coupling portion (331e) of the upper elastic member (331) and the second portion (420) of the terminal (400) may be disposed in the groove (110) of the base (100). The conductive member may include conductive epoxy. The conductive member may include Ag epoxy. The conductive member may include soldering, i.e., solder. The groove (110) of the base (100) may be open to the upper and inner sides. The outer side of the groove (110) of the base (100) may be closed. Through this, flooding of the conductive member to the outside of the base (100) may be prevented.

[0054] The base (100) may include a stepped portion (120). The stepped portion (120) may protrude from the side of the base (100). The stepped portion (120) may be formed on the outer circumference of the base (100). A side plate (520) of a cover member (800) may be disposed on the stepped portion (120). The stepped portion (120) may overlap the side plate (520) of the cover member (800) in a direction parallel to the optical axis (vertical direction).

[0055] The base (100) may include an extension (130). The extension (130) may protrude from the lower surface of the base (100). The extension (130) may form the lower portion of the base (100). A terminal (400) may also be disposed on the extension (130). The extension (130) may extend to the substrate (10).

[0056] The base (100) may include a groove (140). The groove (140) may be formed on the outer surface of the base (100). The groove (140) may be formed as a recess on the outer surface of the base (100) with a thickness deeper than the thickness of the first part (410) of the terminal (400). The groove (110) may accommodate the first part (410) of the terminal (400).

[0057] The base (100) may include a groove (160). The groove (160) may be formed on the lower surface of the base (100). An adhesive for fixing the lens module (200) to the base (100) may be placed in the groove (160). The groove (160) may be formed on the inner circumference of the base (100). The groove (160) may include a plurality of grooves. The groove (160) may include four grooves. The four grooves may be arranged symmetrically with respect to the optical axis.

[0058] The base (100) may include a vent hole (170). The vent hole (170) may penetrate the base (100) in the direction of the optical axis. The vent hole (170) may be formed between the base (100) and the lens module (200). The vent hole (170) may be formed on the inner surface of the base (100). Through the vent hole (170), gas generated during the curing process of the adhesive in the lower space of the base (100) may be discharged to the upper side of the base (100).

[0059] The camera device may include a lens module (200). The lens module (200) may be coupled to a base (100). At least a portion of the lens module (200) may be disposed within the base (100). The lens module (200) may be disposed in the hollow of the base (100). The lens module (200) may be disposed in the base (100) in the direction of the optical axis.

[0060] The lens module (200) may include a lens holder (210). The lens holder (210) may be a lens barrel. The lens holder (210) may be coupled to a base (100). The lens holder (210) may be placed on the base (100). The lens holder (210) may accommodate first and second lenses (220, 230) inside. The inner surface of the lens holder (210) may be formed in a shape corresponding to the outer surface of the first and second lenses (220, 230). The lens holder (210) may be formed of an insulating material. A portion of the lens holder (210) may protrude above the top plate (510) of the cover member (500). Through this structure, the shoulder height of the camera device may be lowered. Here, the shoulder height may be the height of the top plate (510) of the cover member (500).

[0061] The lens module (200) may include a first lens (220). The first lens (220) may be coupled to a bobbin (321). The optical axis of the first lens (220) may be aligned with the optical axis of the second lens (230). The first lens (220) may include a plurality of lenses whose optical axes are aligned with each other. Alternatively, the first lens (220) may be formed as a single lens.

[0062] The first lens (220) can move relative to the second lens (230). The first lens (220) can move closer to any one of the second lenses (230). The first lens (220) can move further away from any one of the second lenses (230). The first lens (220) can move upward and downward. The first lens (220) can be driven in both directions. When a forward current is applied to the coil (322), the first lens (220) can move upward along the optical axis. That is, the first lens (220) can move in a direction closer to the upper lens (231). When a reverse current is applied to the coil (322), the first lens (220) can move downward along the optical axis. That is, the first lens (220) can move in a direction closer to the lower lens (232).

[0063] The lens module (200) may include a second lens (230). The second lens (230) may be placed within a lens holder (210). The second lens (230) may include a lens placed above the first lens (220). The second lens (230) may be spaced apart from the first lens (220). The gap between the second lens (230) and the first lens (220) may be larger than the stroke of the first lens (220). The second lens (230) may remain fixed in the lens holder (210) when the first lens (220) moves. That is, the second lens (230) may remain fixed without moving when the first lens (220) moves.

[0064] The second lens (230) may include an upper lens (231). The upper lens (231) may be positioned above the first lens (220). The upper lens (231) may be spaced apart from the first lens (220). The gap between the upper lens (231) and the first lens (220) may be larger than the upper stroke of the first lens (220). The upper lens (231) may include a plurality of lenses. Alternatively, the upper lens (231) may be formed as a single lens.

[0065] The second lens (230) may include a lower lens (232). The lower lens (2320) may be positioned below the first lens (220). The lower lens (232) may be spaced apart from the first lens (220). The gap between the lower lens (232) and the first lens (220) may be larger than the lower stroke of the first lens (220). The lower lens (232) may include a plurality of lenses. Alternatively, the lower lens (232) may be formed as a single lens.

[0066] Each of the upper lens (231) and the lower lens (232) can have their optical axes aligned with each other. The lower lens (232) may include a lens having a diameter larger than that of the first lens (220). That is, the first lens (220) may not be the lens with the largest diameter among the plurality of lenses constituting the lens module (200). In this case, the weight of the movable member (320) may be reduced compared to the case where the first lens (220) has the largest diameter.

[0067] The camera device may include an autofocus drive unit (300). The autofocus drive unit (300) may provide an autofocus function. The autofocus drive unit (300) may include a voice coil motor structure. The autofocus drive unit (300) may move the first lens (220) in the direction of the optical axis through the electromagnetic force between the coil and the magnet.

[0068] The autofocus drive unit (300) may include a stator (310). The stator (310) may remain in a fixed state even when the movable member (320) moves. The stator (310) may be placed in a lens holder (210). The stator (310) may be fixed to the lens holder (210). The stator (310) may be fixed to a base (100).

[0069] The stator (310) may include a housing (311). The housing (311) may be a holder. The housing (311) may be placed in a lens holder (210). The housing (311) may be placed within a base (100). At least a portion of the housing (311) may overlap the top plate (510) of the cover member (500) in the optical axis direction.

[0070] The housing (311) may be placed outside the bobbin (321). The housing (311) may accommodate at least a portion of the bobbin (321). The housing (311) may be placed within the cover member (500). The housing (311) may be placed between the cover member (500) and the bobbin (321). The housing (311) may be placed between the base (100) and the bobbin (321). The housing (311) may be formed of a material different from that of the cover member (500). The housing (311) may be formed of an insulating material. The housing (311) may be formed as an injection molded product. The outer side of the housing (311) may be spaced apart from the inner surface of the side plate (520) of the cover member (500). A magnet (312) may be placed in the housing (311). The housing (311) and the magnet (312) can be joined by an adhesive. An upper elastic member (331) can be attached to the upper surface of the housing (311). A lower elastic member (332) can be attached to the lower surface of the housing (311). The housing (311) can be joined to the elastic member (330) by heat fusion and / or an adhesive. The adhesive joining the housing (311) and the magnet (312), and the housing (311) and the elastic member (330) may be an epoxy that is cured by one or more of ultraviolet (UV), heat, and a laser.

[0071] The housing (311) may include four sides and four corner sections positioned between the four sides. The sides of the housing (311) may include a first side, a second side positioned opposite the first side, and a third side and a fourth side positioned opposite each other between the first side and the second side. The corner sections of the housing (311) may include a first corner section positioned between the first side and the third side, a second corner section positioned between the first side and the fourth side, a third corner section positioned between the second side and the third side, and a fourth corner section positioned between the second side and the fourth side. The sides of the housing (311) may include a 'lateral wall'.

[0072] The stator (310) may include a magnet (312). The magnet (312) may be placed in the housing (311). The magnet (312) may be fixed to the housing (311) by an adhesive. The magnet (312) may be placed between the bobbin (321) and the housing (311). The magnet (312) may be opposite to the coil (322). The magnet (312) may have an electromagnetic interaction with the coil (322). The magnet (312) may move the bobbin (321) in the direction of the optical axis through interaction with the coil (322). The magnet (312) may be used for AF driving. The magnet (312) may be placed on the side of the housing (311). In this case, the magnet (312) may include a flat plate shape or a square bar shape.

[0073] The magnet (312) may include a first surface facing the coil (322). The polarity of the upper part of the first surface of the magnet (312) may be different from the polarity of the lower part of the first surface of the magnet (312). The polarity of the upper part of the first surface of the magnet (312) may be the N pole and the polarity of the lower part of the first surface of the magnet (312) may be the S pole. Conversely, the polarity of the upper part of the first surface of the magnet (312) may be the S pole and the polarity of the lower part of the first surface of the magnet (312) may be the N pole.

[0074] The magnet (312) may include a plurality of magnets. The magnet (312) may include two magnets. The magnet (312) may include a first magnet and a second magnet (312-1, 312-2). The first magnet (312-1) may be opposite to the first coil (322-1). The second magnet (312-2) may be opposite to the second coil (322-2).

[0075] The autofocus drive unit (300) may include a movable member (320). The movable member (320) may be positioned within the stator (310). The movable member (320) may be movably positioned within the stator (310). The movable member (320) may move along an optical axis. The movable member (320) may be connected to the stator (310) through an elastic member (330).

[0076] The movable member (320) may include a bobbin (321). The bobbin (321) may be placed within the housing (311). The bobbin (321) may overlap with the base (100) in a direction perpendicular to the optical axis. The bobbin (321) may be placed within the housing (311). The bobbin (321) may be placed in a hole of the housing (311). The bobbin (321) may be movably coupled to the housing (311). The bobbin (321) may move in the optical axis direction relative to the housing (311). A first lens (220) may be coupled to the bobbin (321). The bobbin (321) and the first lens (220) may be joined by screw coupling and / or adhesive. A coil (322) may be coupled to the bobbin (321). An upper elastic member (331) may be attached to the upper surface of the bobbin (321). A lower elastic member (332) may be attached to the lower surface of the bobbin (321). The bobbin (321) may be joined to the elastic member (330) by heat fusion and / or adhesive. The adhesive joining the bobbin (321) and the first lens (220), and the bobbin (321) and the elastic member (330), may be an epoxy that is cured by one or more of ultraviolet (UV), heat, and a laser.

[0077] The bobbin (321) may include a projection (321a). The projection (321a) may be formed on the outer surface of the bobbin (321). A coil (322) may be placed on the projection (321a). The coil (322) may be wound around the projection (321a). The projection (321a) may include a plurality of projections. The projection (321a) may include two projections placed opposite each other. A coil (322) may be placed on each of the two projections.

[0078] The actuator (320) may include a coil (322). The coil (322) may be placed on a bobbin (321). Alternatively, as a variation, a magnet (312) may be placed on the bobbin (321) and the coil (322) may be placed on the housing (311). The coil (322) may be an 'AF drive coil' used for AF drive. The coil (322) may be placed on the bobbin (321). The coil (322) may be placed between the bobbin (321) and the housing (311). The coil (322) may be placed on the outer lateral surface or outer peripheral surface of the bobbin (321). The coil (322) may be series-wound on the bobbin (321). Alternatively, the coil (322) may be coupled to the bobbin (321) in a series-wound state. The coil (322) may be positioned opposite the magnet (312). The coil (322) may be positioned facing the magnet (312). The coil (322) may have electromagnetic interaction with the magnet (312). In this case, when current is supplied to the coil (322) and an electromagnetic field is formed around the coil (322), the coil (322) may move relative to the magnet (312) due to the electromagnetic interaction between the coil (322) and the magnet (312). The coil (322) may be formed as a single coil. Alternatively, the coil (322) may include a plurality of coils spaced apart from each other.

[0079] The coil (322) may include a pair of lead wires for power supply. In this case, one end (lead wire) and the other end (lead wire) of the coil (322) may be electrically connected to the upper elastic member (331).

[0080] The coil (322) may include a plurality of coils. The coil (322) may include two coils. The coil (322) may include a first and second coil (322-1, 322-2). The first coil (322-1) and the second coil (322-2) may be electrically separated. Alternatively, the first coil (322-1) and the second coil (322-2) may be electrically connected. The coil (322) may include a connecting coil that connects the first coil (322-1) and the second coil (322-2).

[0081] The coil (322) may include a first coil (322-1) disposed on the first side of the bobbin (321). The coil (322) may include a second coil (322-2) disposed on the second side opposite the first side of the bobbin (321).

[0082] The autofocus drive unit (300) may include an elastic member (330). The elastic member (330) may connect the bobbin (321) and the housing (311). The elastic member (330) may be coupled to the bobbin (321) and the housing (311). The elastic member (330) may elastically support the bobbin (321). The elastic member (330) may have elasticity in at least a portion. The elastic member (330) may movably support the bobbin (321). The elastic member (330) may support the movement of the bobbin (321) during AF drive. At this time, the elastic member (330) may be referred to as an 'AF support member'.

[0083] The elastic member (330) may include an upper elastic member (331). The upper elastic member (331) may be coupled to the upper part of the bobbin (321) and the upper part of the housing (311). The upper elastic member (331) may be coupled to the upper surface of the bobbin (321). The upper elastic member (331) may be coupled to the upper surface of the housing (311). The upper elastic member (331) may be formed as a plate spring.

[0084] The upper elastic member (331) may include a first spring and a second spring. The first spring and the second spring may be spaced apart from each other. The first spring and the second spring may be electrically connected to one or more of the first coil (322-1) and the second coil (322-2). The first spring may include first and second upper elastic units (331-1, 331-2) that are spaced apart from each other and electrically connected to the first coil (322-1). The second spring may include third and fourth upper elastic units (331-3, 331-4) that are spaced apart from each other and electrically connected to the second coil (322-2).

[0085] The upper elastic member (331) may include a plurality of upper elastic units. The upper elastic member (331) may include four upper elastic units. The upper elastic member (331) may include first to fourth upper elastic units (331-1, 331-2, 331-3, 331-4). The upper elastic member (331) may include first and second upper elastic units (331-1, 331-2) that are spaced apart from each other and electrically connected to the first coil (322-1). The upper elastic member (331) may include third and fourth upper elastic units (331-3, 331-4) that are spaced apart from each other and electrically connected to the second coil (322-2).

[0086] The upper elastic member (331) may include an inner portion (331a) coupled to the bobbin (321). The upper elastic member (331) may include an outer portion (331b) coupled to the upper surface of the housing (311). The upper elastic member (331) may include a connecting portion (331c) connecting the inner portion (331a) and the outer portion (331b). The connecting portion (331c) may have elasticity. The connecting portion (331c) may be an elastic portion. The connecting portion (331c) may include a shape that is bent two or more times. The upper elastic member (331) may include an extension portion (331d) that extends from the outer portion (331b) and is disposed on the outer surface of the housing (311). The upper elastic member (331) may include a coupling portion (331e) that extends from the outer portion (331b) and overlaps at least a portion of the second portion (420) of the terminal (400) in the optical axis direction.

[0087] The extension portion (331d) may be bent downward from the first portion of the outer portion (331b). The connecting portion (331e) may protrude outward from the second portion spaced apart from the first portion of the outer portion (331b).

[0088] At least a portion of the connecting portion (331e) of the upper elastic member (331) may be disposed within the groove (110) of the base (100). Through this, the connecting portion (331e) of the upper elastic member (331) may come into contact with a conductive member disposed in the groove (110) of the base (100).

[0089] The elastic member (330) may include a lower elastic member (332). The lower elastic member (332) may be positioned below the upper elastic member (331). The lower elastic member (332) may be positioned below the bobbin (321). The lower elastic member (332) may be coupled to the bobbin (321) and the housing (311). The lower elastic member (332) may be coupled to the lower surface of the bobbin (321). The lower elastic member (332) may be coupled to the lower surface of the housing (311). The lower elastic member (332) may be formed as a leaf spring.

[0090] The lower elastic member (332) may include an inner portion (332a) that is coupled to the bobbin (321). The lower elastic member (332) may include an outer portion (332b) that is coupled to the housing (311). The lower elastic member (332) may include a connecting portion (332c) that connects the inner portion (332a) and the outer portion (332b). The connecting portion (332c) may have elasticity. The connecting portion (332c) may be an elastic portion. The connecting portion (332c) may include a shape that is bent two or more times. The lower elastic member (332) may be formed integrally.

[0091] As a variation, the upper elastic member (311) may be formed integrally, and the lower elastic member (332) may include first and second lower elastic units that are spaced apart from each other and electrically connected to the first coil (322-1) and the second coil (322-2).

[0092] The camera device may include a terminal (400). The terminal (400) may be placed on the base (100). The terminal (400) may be electrically connected to an autofocus drive unit (300). The terminal (400) may be electrically connected to a substrate (10). The terminal (400) may be formed on the base (100) by insert injection. The terminal (400) may be formed integrally with the base (100) through insert injection on the base (100). Alternatively, the terminal (400) may be formed separately from the base (100) and coupled to the base (100). The terminal (400) may be formed integrally with the base (100) through a MID (molded interconnection device) method.

[0093] The terminal (400) may include a plurality of terminals. The terminal (400) may include four terminals. The four terminals may each be electrically connected to the first to fourth upper elastic units (331-1, 331-2, 331-3, 331-4).

[0094] The terminal (400) may include a first portion (410). The first portion (410) may be disposed on the outer surface of the base (100). At least a portion of the first portion (410) may be disposed in a groove (140) of the base (100).

[0095] The terminal (400) may include a second part (420). The second part (420) may extend from the first part (410). The second part (420) may be bent from the first part (410). The second part (420) may be disposed on the upper surface of the base (100). The second part (420) may be disposed in a groove (110) formed on the upper surface of the base (100). At least a portion of the second part (420) of the terminal (400) may be disposed on the bottom surface of the groove (110) of the base (100).

[0096] The camera device may include a cover member (500). The cover member (500) may cover the base (100). The cover member (500) may be coupled to the base (100). The cover member (500) may be placed on a stepped portion (120) of the base (100). The inner surface of the side plate (520) of the cover member (500) may be fixed to the side of the base (100) by an adhesive. The cover member (500) may accommodate a portion of the lens module (200) inside. The cover member (500) may form the exterior of the camera device. The cover member (500) may have a cuboid shape with an open bottom surface. The cover member (500) may be a non-magnetic material. The cover member (500) may be formed of a metal material. The cover member (500) may be formed of a metal plate. The cover member (500) can be connected to the ground portion of the substrate (10). Through this, the cover member (500) can be grounded. The cover member (500) can block electromagnetic interference (EMI). At this time, the cover member (500) may be referred to as an 'EMI shield can'.

[0097] The cover member (500) may include a top plate (510) and a side plate (520). The cover member (500) may include a top plate (510) that includes a hole and a side plate (520) that extends downward from the outer periphery (outer edge) of the top plate (510).

[0099] Hereinafter, an optical device according to the present embodiment will be described with reference to the drawings.

[0100] FIG. 21 is a perspective view illustrating an optical device according to the present embodiment, and FIG. 22 is a configuration diagram of an optical device according to the present embodiment.

[0101] The optical device (10B) may be any one of a mobile phone, a smartphone, 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. However, the type of optical device (10B) is not limited to these, and any device for taking images or photos may be included in the optical device (10B).

[0102] The optical device (10B) may include a main body (850). The main body (850) may be in the form of a bar. Alternatively, the main body (850) may have various structures such as a slide type, folder type, swing type, or swivel type in which two or more sub-bodies are combined to move relative to each other. The main body (850) may include a case (casing, housing, cover) forming the exterior. For example, the main body (850) may include a front case (851) and a rear case (852). Various electronic components of the optical device (10B) may be embedded in the space formed between the front case (851) and the rear case (852). A display module (753) may be placed on one side of the main body (850). A camera (721) may be placed on one or more sides of the main body (850), including one side and the other side opposite to that side.

[0103] The optical device (10B) may include a wireless communication unit (710). The wireless communication unit (710) may include one or more modules that enable wireless communication between the optical device (10B) and a wireless communication system or between the optical device (10B) and a network where the optical device (10B) is located. For example, the wireless communication unit (710) may include one or more of a broadcast reception module (711), a mobile communication module (712), a wireless internet module (713), a short-range communication module (714), and a location information module (715).

[0104] The optical device (10B) may include an A / V input unit (720). The A / V (Audio / Video) input unit (720) is for inputting an audio signal or a video signal and may include one or more of a camera (721) and a microphone (722). In this case, the camera (721) may include a camera module (10A) according to the present embodiment.

[0105] The optical device (10B) may include a sensing unit (740). The sensing unit (740) can detect the current state of the optical device (10B), such as the open / closed state of the optical device (10B), the position of the optical device (10B), the presence or absence of user contact, the orientation of the optical device (10B), and the acceleration / deceleration of the optical device (10B), and generate a sensing signal to control the operation of the optical device (10B). For example, if the optical device (10B) is in the form of a slide phone, it can sense whether the slide phone is open or closed. In addition, it can perform sensing functions related to whether power is supplied by the power supply unit (790) and whether an external device is connected to the interface unit (770).

[0106] The optical device (10B) may include an input / output unit (750). The input / output unit (750) may be configured to generate input or output related to sight, hearing, or touch. The input / output unit (750) may generate input data for controlling the operation of the optical device (10B) and may also output information processed by the optical device (10B).

[0107] The input / output unit (750) may include one or more of a keypad unit (751), a touch screen panel (752), a display module (753), and an audio output module (754). The keypad unit (751) may generate input data by keypad input. The touch screen panel (752) may convert a change in capacitance caused by a user's touch on a specific area of ​​the touch screen into an electrical input signal. The display module (753) may output an image captured by the camera (721). The display module (753) may include a plurality of pixels whose color changes according to an electrical signal. For example, the display module (753) may include at least one of a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a 3D display. The sound output module (754) can output audio data received from the wireless communication unit (710) in call signal reception, call mode, recording mode, voice recognition mode, or broadcast reception mode, or output audio data stored in the memory unit (760).

[0108] The optical device (10B) may include a memory unit (760). A program for processing and controlling the control unit (780) may be stored in the memory unit (760). Additionally, the memory unit (760) may store one or more of input / output data, such as a phone book, messages, audio, still images, photos, and videos. The memory unit (760) may store images captured by the camera (721), such as photos or videos.

[0109] The optical device (10B) may include an interface section (770). The interface section (770) serves as a passage connecting to an external device connected to the optical device (10B). The interface section (770) may receive data from an external device, receive power and transmit it to each component inside the optical device (10B), or allow data inside the optical device (10B) to be transmitted to an external device. The interface section (770) may include one or more of a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device equipped with an identification module, an audio I / O (Input / Output) port, a video I / O (Input / Output) port, and an earphone port.

[0110] The optical device (10B) may include a control unit (780). The control unit (controller, 780) may control the overall operation of the optical device (10B). The control unit (780) may perform related control and processing for voice calls, data communication, video calls, etc. The control unit (780) may include a display control unit (781) that controls a display module (753), which is a display of the optical device (10B). The control unit (780) may include a camera control unit (782) that controls a camera module (10A). The control unit (780) may include a multimedia module (783) for multimedia playback. The multimedia module (783) may be provided within the control unit (180) or may be provided separately from the control unit (780). The control unit (780) may perform pattern recognition processing that can recognize handwriting input or drawing input performed on a touchscreen as characters and images, respectively.

[0111] The optical device (10B) may include a power supply unit (790). The power supply unit (790) may receive external power or internal power under the control of the control unit (780) and supply power necessary for the operation of each component.

[0113] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

Claims

Claim 1 A camera device comprising: a base; a lens holder coupled to the base; a housing disposed in the lens holder; a bobbin disposed within the housing; a coil and a magnet for moving the bobbin in the direction of the optical axis; a first lens coupled to the bobbin; and a second lens disposed within the lens holder, wherein when the first lens moves, the second lens is fixed to the lens holder, and the first lens moves together with the bobbin in the direction of the optical axis so that the distance of separation from the second lens in the direction of the optical axis is variable. Claim 2 A camera device according to claim 1, wherein the optical axis of the first lens is aligned with the optical axis of the second lens. Claim 3 A camera device according to claim 1, wherein the second lens comprises an upper lens positioned above the first lens. Claim 4 In paragraph 3, the camera device comprises a second lens that includes a lower lens positioned below the first lens. Claim 5 A camera device according to claim 1, comprising an upper elastic member connecting the bobbin and the housing. Claim 6 A camera device according to claim 5, wherein the coil comprises a first coil disposed on a first side of the bobbin and a second coil disposed on a second side opposite to the first side of the bobbin, and the upper elastic member comprises a first spring and a second spring that are spaced apart from each other and electrically connected to one or more of the first coil and the second coil. Claim 7 A camera device according to claim 6, wherein the first spring comprises first and second upper elastic units spaced apart from each other and electrically connected to the first coil, and the second spring comprises third and fourth upper elastic units spaced apart from each other and electrically connected to the second coil. Claim 8 A camera device according to claim 5, comprising a lower elastic member that connects the bobbin and the housing and is positioned below the upper elastic member, wherein the lower elastic member comprises an inner portion coupled to the bobbin, an outer portion coupled to the housing, and a connecting portion connecting the inner portion and the outer portion, and wherein the lower elastic member is integrally formed. Claim 9 A camera device according to claim 5, comprising a terminal disposed on the base, wherein the terminal comprises a first portion disposed on the outer surface of the base and a second portion extending from the first portion and disposed on the upper surface of the base, and the upper elastic member comprises an inner portion coupled to the bobbin, an outer portion coupled to the upper surface of the housing, a connecting portion connecting the inner portion and the outer portion, an extension portion extending from the outer portion and disposed on the outer surface of the housing, and a coupling portion extending from the outer portion and having at least a portion overlapping with the second portion of the terminal in the optical axis direction. Claim 10 A camera device according to claim 9, wherein the second portion of the terminal is bent from the first portion, the extension portion of the upper elastic member is bent downward from the first portion of the outer portion, and the coupling portion of the upper elastic member protrudes outward from the second portion of the outer portion which is spaced apart from the first portion of the outer portion. Claim 11 A camera device according to claim 9, wherein the base comprises a groove formed on the upper surface of the base, at least a portion of the second portion of the terminal is disposed on the bottom surface of the groove of the base, and at least a portion of the coupling portion of the upper elastic member is disposed within the groove of the base. Claim 12 A camera device according to claim 11, wherein a conductive member is disposed in the groove of the base to electrically connect the coupling portion of the upper elastic member and the second portion of the terminal. Claim 13 In claim 9, the above terminal is a camera device formed by insert injection into the base. Claim 14 A camera device according to claim 1, wherein the magnet includes a first surface facing the coil, and the polarity of the upper part of the first surface of the magnet is different from the polarity of the lower part of the first surface of the magnet. Claim 15 In claim 1, the bobbin is a camera device that overlaps with the base in a direction perpendicular to the optical axis direction. Claim 16 In claim 1, the housing is a camera device disposed within the base. Claim 17 In paragraph 4, the camera device comprises a lower lens having a diameter larger than the diameter of the first lens. Claim 18 A camera device according to claim 1, comprising a cover member including a top plate and a side plate extending from the top plate, wherein the side plate of the cover member is coupled to the base, at least a portion of the housing overlaps the top plate of the cover member in the direction of the optical axis, and a portion of the lens holder protrudes above the top plate of the cover member. Claim 19 A camera device according to claim 1, comprising a printed circuit board; and an image sensor disposed on the printed circuit board, wherein the base is disposed on the printed circuit board. Claim 20 An optical device comprising: a main body; a camera device according to any one of claims 1 to 19 disposed on the main body; and a display disposed on the main body and outputting an image captured by the camera device. Claim 21 delete Claim 22 delete Claim 23 delete Claim 24 delete

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