Camera device and optical apparatus

Abstract

The present embodiment relates to a camera device comprising: a base; a lens holder arranged on the base; a lens coupled to the lens holder; a first coil and a first magnet for moving the lens in the optical axis direction; and an iris assembly moving integrally with the lens, wherein the iris assembly includes a plurality of blades, which form a hole through which light passes, and a second coil and a second magnet, which move the plurality of blades, all of the plurality of blades are arranged at the same height so as to overlap with each other in the direction perpendicular to the optical axis, the plurality of blades include a first blade and a second blade in contact with the first blade, the first blade includes a first surface with a first area forming the hole and a second area in contact with the second blade, and the first surface of the first blade is inclined to become closer to the optical axis from the lower side toward the upper side.

Description

Camera devices and optical instruments

[0001] The present embodiment relates to a camera device and an optical device.

[0002] Modern smartphones are equipped with cameras capable of taking high-resolution photos and videos.

[0003] In particular, recent smartphone cameras are equipped with various functions such as autofocus, image stabilization, and zoom, providing high satisfaction to many users.

[0004] However, conventional smartphone cameras suffer from performance limitations in low-light environments. This causes images captured in low-light conditions to be noisy and lack clarity, posing a problem.

[0005] (Patent Document 1) KR 10-2015-0100409 A

[0006] The present invention seeks to provide a camera device that can be used without performance limitations even in dark environments. Furthermore, the present invention seeks to provide an aperture device for the aforementioned camera device.

[0007] A first embodiment of the present invention seeks to provide an aperture device including a blade having a two-layer structure.

[0008] A second embodiment of the present invention provides an aperture device including blades having a single-layer structure. Furthermore, the present invention provides a blade structure that minimizes light leakage, a phenomenon in which light leaks between multiple blades in a single-layer structure.

[0009] A camera device according to the present embodiment comprises: a base; a lens holder disposed on the base; a lens coupled to the lens holder; a first coil and a first magnet for moving the lens in the direction of an optical axis; and an aperture assembly that moves integrally with the lens, wherein the aperture assembly comprises a plurality of blades forming holes through which light passes, and a second coil and a second magnet for moving the plurality of blades, wherein the plurality of blades are all disposed at the same height so as to overlap each other in a direction perpendicular to the optical axis, the plurality of blades include a first blade and a second blade in contact with the first blade, the first blade includes a first area forming the hole, and a second area in contact with the second blade, and the first area of ​​the first blade may be inclined so as to become closer to the optical axis as it goes from the bottom to the top.

[0010] The first surface of the first blade may be formed into a plane.

[0011] The second blade includes a second surface that contacts the second area of ​​the first surface of the first blade, and the second surface of the second blade may have a slope corresponding to the first surface of the first blade.

[0012] The first blade and the second blade can overlap each other in the optical axis direction.

[0013] The above aperture assembly includes a stator and a rotor, and the second coil and the second magnet rotate the rotor relative to the stator, and when the rotor rotates, the size of the hole formed by the plurality of blades can be changed.

[0014] The blade may include a third surface arranged perpendicular to the optical axis, a fourth surface opposite the third surface, a first protrusion formed on the third surface, and a second protrusion formed on the fourth surface, the stator may include a hole or groove in which the first protrusion of the blade is arranged, and the rotor may include a hole or groove in which the second protrusion of the blade is arranged.

[0015] The hole or groove of the stator may have an outer edge formed in a hexagonal shape when viewed in the optical axis direction.

[0016] The above hole or groove of the above rotor can be formed by six holes spaced apart from each other.

[0017] The first protrusion of the blade may be formed in a square column shape, and the second protrusion of the blade may be formed in a cylindrical shape.

[0018] The above lens includes a first lens and a second lens, and the blade can be positioned between the first lens and the second lens.

[0019] The stator and the rotor each include a protrusion, and the blade includes a first hole in which the protrusion of the stator is arranged and a second hole in which the protrusion of the rotor is arranged, and the first hole of the blade may be a circular hole, and the second hole of the blade may be an elongated hole formed so that the protrusion of the rotor can move within the second hole.

[0020] The aperture assembly may include a cover disposed on the stator, and the cover may include a first groove in which the protrusion of the stator is disposed, and a second groove in which the protrusion of the rotor is disposed, wherein the first groove of the cover may be a circular groove, and the second groove of the cover may be a long groove formed so that the protrusion of the rotor can move within the second groove.

[0021] The aperture assembly may include a ball disposed between the stator and the rotor, a third magnet disposed on one of the stator and the rotor, and a yoke disposed on the other of the stator and the rotor and having an attractive force with the third magnet.

[0022] A camera device according to the present embodiment comprises: a base; a lens holder disposed on the base; a lens coupled to the lens holder; a first coil and a first magnet for moving the lens in an optical axis direction; and an aperture assembly that moves integrally with the lens, wherein the aperture assembly comprises a plurality of blades forming holes through which light passes, and a second coil and a second magnet for moving the plurality of blades, wherein the plurality of blades include first to third blades disposed at the same height as each other, and fourth to sixth blades disposed at the same height as each other above the first to third blades, wherein the lens comprises a first lens and a second lens, and the plurality of blades can be disposed between the first lens and the second lens.

[0023] An optical device according to the present embodiment may include a main body; the camera device disposed in the main body; and a display disposed in the main body and outputting at least one of an image and a video captured by the camera device.

[0024] The present invention provides a camera device that can be used without performance limitations even in dark environments. Furthermore, an aperture device can be provided for the aforementioned camera device.

[0025] Through the first embodiment of the present invention, an aperture device including a blade having a two-layer structure can be provided.

[0026] Through a second embodiment of the present invention, an aperture device including blades having a single-layer structure can be provided. Furthermore, through the second embodiment of the present invention, a light leakage phenomenon, which is a phenomenon in which light leaks between multiple blades in a single-layer structure, can be minimized.

[0027] FIG. 1 is a perspective view of a camera device according to a first embodiment of the present invention.

[0028] Figure 2 is a cross-sectional view taken along line AA of Figure 1.

[0029] Figure 3 is a BB cross-sectional view of Figure 1.

[0030] Fig. 4 is a cross-sectional view of the camera device in the state of Fig. 1, showing the ball that guides the AF operation.

[0031] Fig. 5 is an exploded perspective view of the camera device in the state of Fig. 1.

[0032] Figure 6 is a perspective view of Figure 1 with the cover omitted.

[0033] Fig. 7 is a perspective view of Fig. 6 with the first lens omitted.

[0034] Figure 8 is a perspective view of Figure 7 with the aperture assembly omitted.

[0035] FIG. 9 is a perspective view showing a combined state of the base and housing of a camera device according to the first embodiment of the present invention.

[0036] FIG. 10 is a perspective view showing a combined state of a lens and an aperture assembly of a camera device according to a first embodiment of the present invention.

[0037] Figure 11 (a) is a drawing showing a state in which an aperture coil and an aperture sensor are arranged on a substrate, and (b) is a drawing of an aperture magnet, a rotor, a lens, etc., viewed from a direction opposite to the aperture coil.

[0038] Figure 12 (a) is a perspective view of the stator of the aperture assembly, and (b) is a bottom perspective view.

[0039] Figure 13 (a) is a perspective view of the ball and yoke arranged in the aperture assembly, and (b) is a bottom perspective view of the ball, the attractive magnet, and the aperture magnet arranged in the rotor.

[0040] Figure 14 is a perspective view of the stator and rotor of the aperture assembly combined.

[0041] Figure 15 is a partial perspective view of the stator and rotor of the aperture assembly combined.

[0042] Figure 16 is a perspective view of the blades combined in Figure 14.

[0043] Fig. 17 is a perspective view of the cover of the aperture assembly in Fig. 16 combined.

[0044] Figure 18 (a) is a bottom perspective view of the cover of the aperture assembly, (b) is a cross-sectional view of the first groove of the cover, and (c) is a cross-sectional view of the second groove of the cover.

[0045] Figure 19 is a cross-sectional view showing the state in which the lens and aperture assembly are combined.

[0046] Figure 20 is a cross-sectional view and a partially enlarged view of a camera device according to a first embodiment of the present invention.

[0047] Figures 21 (a), (b), and (c) are drawings for explaining holes of an aperture assembly controlled to various sizes in the first embodiment of the present invention.

[0048] FIG. 22 is a perspective view showing a portion of an aperture assembly according to a second embodiment of the present invention.

[0049] Figure 23 is a perspective view of Figure 22 with the rotor omitted.

[0050] Figure 24 is a perspective view of Figure 23 with the blade omitted.

[0051] Figure 25 (a) is a perspective view showing a blade of an aperture assembly according to a second embodiment of the present invention, and (b) is a bottom perspective view.

[0052] Fig. 26 (a) is a perspective view showing two adjacent blades of an aperture assembly according to a second embodiment of the present invention, and (b) is a bottom perspective view.

[0053] Fig. 27 (a) is a cross-sectional perspective view showing two adjacent blades of an aperture assembly according to a second embodiment of the present invention, and (b) is a cross-sectional view.

[0054] Figures 28 (a), (b), and (c) are drawings for explaining holes of an aperture assembly controlled to various sizes in the second embodiment of the present invention.

[0055] Figures 29 (a) and (b) are bottom views showing the hole states of two different sized aperture assemblies as viewed from below.

[0056] Fig. 30 is an exploded perspective view of a camera device according to the present embodiment.

[0057] Fig. 31 is a perspective view of an optical device according to the present embodiment.

[0058] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0059] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0060] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0061] Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0062] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.

[0063] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not intended to limit the nature, order, or sequence of the components.

[0064] And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, it may include not only cases where the component is 'connected', 'coupled', or 'connected' directly to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.

[0065] Additionally, when described as being formed or arranged "above" or "below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below," the meaning may include not only the upward direction but also the downward direction based on one component.

[0066] The 'optical axis direction (see OA in Fig. 3)' used below is defined as the optical axis direction of a lens, aperture, and / or image sensor coupled to a lens driving device.

[0067] The 'vertical direction' used below may be a direction parallel to or the same direction as the optical axis direction. The vertical direction may correspond to the 'z-axis direction'. The 'horizontal direction' used below may be a direction perpendicular to the vertical direction. That is, the horizontal direction may be a direction perpendicular to the optical axis. Therefore, the horizontal direction may include the 'x-axis direction' and the 'y-axis direction'.

[0068] The 'auto focus (AF) function' used below is defined as a function that automatically focuses on a subject by adjusting the distance from the image sensor by moving the lens in the optical axis direction according to the distance of the subject so that a clear image of the subject can be obtained on the image sensor. In addition, 'closed-loop auto focus (CLAF) control' is defined as a function that detects the distance between the image sensor and the lens and provides feedback control of the position of the lens in real time to improve the accuracy of focus adjustment.

[0069] Hereinafter, one of the ‘AF coil (310)’ and the ‘aperture coil (551)’ may be referred to as the ‘first coil’ and the other may be referred to as the ‘second coil’.

[0070] Hereinafter, one of the 'AF magnet (320)', the 'aperture magnet (552)' and the 'human force magnet (571)' may be referred to as the 'first magnet', the other may be referred to as the 'second magnet' and the other may be referred to as the 'third magnet'.

[0071]

[0072] Hereinafter, a camera device according to a first embodiment of the present invention will be described with reference to the drawings.

[0073] FIG. 1 is a perspective view of a camera device according to a first embodiment of the present invention. The camera device of FIG. 1 may be understood as a camera device of FIG. 30, with components such as a printed circuit board (50), an image sensor (60), a sensor base (40), and a filter (30) omitted. Alternatively, the camera device of FIG. 1 may be understood as a camera device in which a lens and an aperture assembly are coupled to a lens drive mechanism. FIG. 2 is a cross-sectional view taken along line AA of FIG. 1. FIG. 3 is a cross-sectional view taken along line BB of FIG. 1. FIG. 4 is a cross-sectional view of the camera device of FIG. 1, cut so that a ball guiding AF operation is visible. FIG. 5 is an exploded perspective view of the camera device of FIG. 1. FIG. 6 is a perspective view of FIG. 1 with the cover omitted. FIG. 7 is a perspective view of FIG. 6 with the first lens omitted. FIG. 8 is a perspective view of FIG. 7 with the aperture assembly omitted. FIG. 9 is a perspective view showing a coupled state of a base and a housing of a camera device according to a first embodiment of the present invention. FIG. 10 is a perspective view showing a coupled state of a lens and an aperture assembly of a camera device according to a first embodiment of the present invention. FIG. 11 (a) is a drawing showing a state in which an aperture coil and an aperture sensor are arranged on a substrate, and (b) is a drawing of an aperture magnet, a rotor, a lens, etc., as seen from a direction opposite to the aperture coil. FIG. 12 (a) is a perspective view of a stator of an aperture assembly, and (b) is a bottom perspective view. FIG. 13 (a) is a perspective view showing a state in which a ball and a yoke are arranged on an aperture assembly, and (b) is a bottom perspective view showing a state in which a ball, an attractive magnet, and an aperture magnet are arranged on a rotor. FIG. 14 is a perspective view showing a state in which a stator and a rotor of an aperture assembly are coupled. Fig. 15 is a partial perspective view of the stator and rotor of the aperture assembly combined. Fig. 16 is a perspective view of the blades combined in Fig. 14. Fig. 17 is a perspective view of the cover of the aperture assembly combined in Fig. 16.Fig. 18 (a) is a bottom perspective view of the cover of the aperture assembly, (b) is a cross-sectional view of the first groove of the cover, and (c) is a cross-sectional view of the second groove of the cover. Fig. 19 is a cross-sectional view showing a state in which a lens and an aperture assembly are coupled. Fig. 20 is a cross-sectional view and a partially enlarged view of a camera device according to the first embodiment of the present invention. Fig. 21 (a), (b), and (c) are drawings for explaining holes of the aperture assembly controlled to various sizes in the first embodiment of the present invention.

[0074] The camera device (10A) may include a camera module. The camera device (10A) may include a lens driving device (10).

[0075] The lens driving device (10) may be a voice coil motor (VCM). The lens driving device (10) may be a lens driving motor. The lens driving device (10) may be a lens driving actuator. The lens driving device (10) may include an AF module. Alternatively, the lens driving device (10) may include an OIS module.

[0076] The lens driving device (10) may include a fixed part (100). The fixed part (100) may be a part that is fixed when AF is driven. The fixed part (100) may form an exterior.

[0077] The lens actuator (10) may include a base (110). The fixing member (100) may include the base (110). The base (110) may be coupled with the cover (130). The base (110) may be coupled with the housing (120). The base (110) may support the lens holder (210) from below. The base (110) may be placed in the cover (130). The base (110) may be placed in the housing (120). The base (110) may include a lower plate and pillars protrudingly formed in a plurality of corner areas of the lower plate.

[0078] The lens actuator (10) may include a housing (120). The fixing member (100) may include the housing (120). The housing (120) may be disposed on the base (110). The housing (120) may be disposed on the base (110). The housing (120) may be coupled to the base (110). The housing (120) may be fixed to the base (110). The housing (120) may be adhesively bonded to the base (110). The housing (120) may accommodate a lens holder (210). The housing (120) may be formed integrally with the base (110).

[0079] The lens actuator (10) may include a cover (130). The fixing member (100) may include the cover (130). The cover (130) may be placed on the base (110). The cover (130) may be placed on the base (110). The cover (130) may be coupled to the base (110). The cover (130) may be fixed to the base (110). The cover (130) may be adhesively bonded to the base (110). The cover (130) may be placed on the housing (120). The cover (130) may be placed on the lens holder (210). The cover (130) may accommodate the housing (120). The cover (130) may accommodate the lens holder (210).

[0080] The cover (130) may include a top plate (131) and a plurality of side plates (132) extending from the top plate (131). The side plates (132) of the cover (130) may include a first side plate and a second side plate arranged opposite each other, and a third side plate and a fourth side plate arranged opposite each other.

[0081] The lens actuator (10) may include a substrate (140). The fixing member (100) may include the substrate (140). The substrate (140) may be disposed in the housing (120). The substrate (140) may be disposed on the housing (120). The substrate (140) may be coupled to the housing (120). The substrate (140) may be fixed to the housing (120). The substrate (140) may be bonded to the housing (120) with an adhesive. The substrate (140) may be disposed in the base (110). The substrate (140) may be disposed on the base (110). The substrate (140) may be coupled to the base (110). The substrate (140) may be fixed to the base (110). The substrate (140) may be bonded to the base (110) with an adhesive. The substrate (140) may be placed on the cover (130). The substrate (140) may be placed on the side plate (132) of the cover (130). The substrate (140) may be placed between the side plate (132) of the cover (130) and the housing (120). The substrate (140) may be placed between the side plate (132) of the cover (130) and the base (110). Alternatively, the substrate (140) may be placed on the outer surface of the side plate (132) of the cover (130).

[0082] The substrate (140) may be a flexible printed circuit board (FPCB). The substrate (140) may supply current to the AF coil (310). The substrate (140) may be electrically connected to the AF coil (310). The substrate (140) may be electrically connected to the AF sensor (330). The substrate (140) may include a plurality of terminals. The terminals of the substrate (140) may be coupled to the printed circuit board (50).

[0083] The lens driving device (10) may include a moving part (200). The moving part (200) may move when AF is driven. The moving part (200) may be placed on the fixed part (100). The moving part (200) may be placed within the fixed part (100). The moving part (200) may move with respect to the fixed part (100).

[0084] The lens driving device (10) may include a lens holder (210). The moving unit (200) may include the lens holder (210). The lens holder (210) may be placed on the base (110). The lens holder (210) may be placed on the base (110). The lens holder (210) may be placed inside the base (110). The lens holder (210) may be movably placed on the base (110). The lens holder (210) may be movable in the optical axis direction. The lens holder (210) may be coupled to the lens module (20). The lens holder (210) may be placed inside the housing (120). The lens holder (210) may be placed in the housing (120). The lens holder (210) may be movable in the optical axis direction with respect to the housing (120).

[0085] The lens holder (210) may include a groove (211). The groove (211) may be formed on the outer surface of the lens holder (210). The groove (211) may be formed on the outer surface of the lens holder (210). A rotor (520) of the aperture assembly (500) may be placed in the groove (211). The groove (211) may be formed in a shape corresponding to the rotor (520). The groove (211) may be formed in a shape that limits the stroke of the rotor (520).

[0086] The lens driving device (10) may include a lens module. The moving unit (200) may include the lens module. The lens driving device (10) may include a lens (220). The lens module may include a lens (220) and a barrel. The lens (220) may be placed inside the barrel. The lens (220) may be coupled to an inner surface of the barrel. The lens (220) may be placed at a position corresponding to the image sensor (60). The lens (220) may be coupled to a lens holder (210). The lens (220) may be placed in the lens holder (210). At least a portion of the lens (220) may be placed inside the lens holder (210). The lens (220) may be placed in a hollow portion of the lens holder (210). The lens module may be coupled to the lens holder (210). The lens (220) can be moved integrally with the lens holder (210).

[0087] The lens (220) may include a second lens (222) and a first lens (221) disposed on the second lens (222). The second lens (222) may be disposed below the first lens (221). At least a portion of the aperture assembly (500, 600) may be disposed between the first lens (221) and the second lens (222). At least a portion of the blades (530, 630) may be disposed between the first lens (221) and the second lens (222). The blades (530, 630) may be disposed between the first lens (221) and the second lens (222). In the present embodiment, a variable aperture may be inserted between the lenses to enable a thinner structural design.

[0088] The lens driving device (10) may include a driving unit (300). The driving unit (300) may move the moving unit (200). The driving unit (300) may move the moving unit (200) relative to the fixed unit (100). The driving unit (300) may move the moving unit (200) in the optical axis direction. The driving unit (300) may perform AF driving. The driving unit (300) may move the moving unit (200) through electromagnetic interaction between a coil and a magnet. The AF coil (310) and the AF magnet (320) may move the lens (220) in the optical axis direction.

[0089] The lens driving device (10) may include an AF coil (310). The driving unit (300) may include the AF coil (310). The AF coil (310) may be disposed on the fixing unit (100). The AF coil (310) may be disposed on the substrate (140). The AF coil (310) may be disposed on the inner surface of the substrate (140). The AF coil (310) may be coupled to the substrate (140). The AF coil (310) may be soldered to the substrate (140). The AF coil (310) may be electrically connected to the substrate (140). The AF coil (310) may be disposed on the housing (120). The AF coil (310) may be disposed on the base (110).

[0090] The AF coil (310) can be positioned corresponding to the AF magnet (320). The AF coil (310) can overlap with the AF magnet (320). The AF coil (310) can overlap with the AF magnet (320) in a direction perpendicular to the optical axis. The AF coil (310) can face the AF magnet (320). The AF coil (310) can face the AF magnet (320). The AF coil (310) can interact with the AF magnet (320). The AF coil (310) can electromagnetically interact with the AF magnet (320). When current is applied to the AF coil (310), the AF magnet (320) can move due to the interaction between the electromagnetic field of the AF coil (310) and the electromagnetic field of the AF magnet (320). The AF coil (310) can move the AF magnet (320). The AF coil (310) can remain relatively fixed when the AF magnet (320) moves.

[0091] As a variation, the AF coil (310) may be placed in the lens holder (210) and the AF magnet (320) may be placed in the fixing member (100). The AF magnet (320) may be placed in the housing (120). The AF magnet (320) may be placed in the base (110). The AF coil (310) may move together with the lens holder (210) and the AF magnet (320) may be fixed.

[0092] The lens driving device (10) may include an AF magnet (320). The driving unit (300) may include an AF magnet (320). The AF magnet (320) may be placed in the lens holder (210). The AF magnet (320) may be placed on the lens holder (210). The AF magnet (320) may be coupled to the lens holder (210). The AF magnet (320) may be fixed to the lens holder (210). The AF magnet (320) may be bonded to the lens holder (210) with an adhesive.

[0093] The AF magnet (320) is movable. The AF magnet (320) can move through interaction with the AF coil (310). The AF magnet (320) can move integrally with the lens holder (210). The AF magnet (320) can move together with the lens holder (210). The AF magnet (320) can be placed on one side of the lens holder (210). The AF magnet (320) can be placed in a groove formed on the side of the lens holder (210).

[0094] The AF magnet (320) may be a four-pole magnet. The upper region of the AF magnet (320) includes a N pole and a S pole, the lower region of the AF magnet (320) includes a S pole and a N pole, and the region between the lower and upper regions of the AF magnet (320) may have a neutral polarity.

[0095] The lens driving device (10) may include an AF sensor (330). The driving unit (300) may include the AF sensor (330). The AF sensor (330) may be disposed on the substrate (140). The AF sensor (330) may be disposed on the inner surface of the substrate (140). The AF sensor (330) may be coupled to the substrate (140). The AF sensor (330) may be disposed within the AF coil (310). Alternatively, as a variation, the AF sensor (330) may be disposed on the outer surface of the AF coil (310). The AF sensor (330) may detect the AF magnet (320). The AF sensor (330) may be disposed at a position corresponding to the AF magnet (320). The AF sensor (330) may overlap the AF magnet (320). The AF sensor (330) may overlap with the AF magnet (320) in a direction perpendicular to the optical axis. The AF sensor (330) may be a Hall sensor. The AF sensor (330) may detect the magnetic force of the AF magnet (320). The position of the AF magnet (320) detected by the AF sensor (330) may be used for auto focus feedback control. The AF sensor (330) may detect the position of the lens holder (210). The AF sensor (330) may detect the position of the lens (220).

[0096] In this embodiment, when current is applied to the AF coil (310), the AF magnet (320) can move. At this time, the lens holder (210) can move integrally with the AF magnet (320). Meanwhile, since the ball (410) guides the movement of the lens holder (210) in the optical axis direction, when current is applied to the AF coil (310), the lens holder (210) can move in the optical axis direction (see OA of FIG. 3) together with the AF magnet (320). At this time, the lens (220) coupled to the lens holder (210) moves together, and the auto focus function can be performed as the distance in the optical axis direction between the lens (220) and the image sensor (60) changes.

[0097] Furthermore, the auto focus function can be feedback controlled in real time by the position of the AF magnet (320) detected by the AF sensor (330). Through this, the accuracy of the auto focus function can be improved.

[0098] The lens actuator (10) may include a guide unit. The guide unit may guide the direction of movement of the moving unit (200). The guide unit may guide the direction of movement of the moving unit (200) relative to the fixed unit (100) when the moving unit (200) moves.

[0099] The lens actuator (10) may include a ball (410). The guide portion may include the ball (410). The ball (410) may be disposed between the lens holder (210) and the housing (120). The ball (410) may be disposed in the lens holder (210). The ball (410) may come into contact with the lens holder (210). The ball (410) may move along the lens holder (210). The ball (410) may move along the groove of the lens holder (210). The ball (410) may be disposed in the housing (120). The ball (410) may come into contact with the housing (120). The ball (410) may move along the housing (120). The ball (410) may move along the groove (121) of the housing (120). The ball (410) can be placed between the groove of the lens holder (210) and the groove (121) of the housing (120). The groove of the lens holder (210) and the groove (121) of the housing (120) can be rails.

[0100] The ball (410) can guide the movement of the lens holder (210) in the optical axis direction. The ball (410) can limit the movement of the lens holder (210) only in the optical axis direction.

[0101] The ball (410) may include a plurality of balls. The ball (410) may include a plurality of balls that overlap in the optical axis direction. The balls (410) may be arranged on both sides of the AF magnet (320). The ball (410) may include a first ball that is arranged on one side of the AF magnet (320) and a second ball that is arranged on the other side of the AF magnet (320). Each of the first ball and the second ball may include a plurality of balls that overlap in the optical axis direction.

[0102] The lens actuator (10) may include a ball pressurizing member. The ball pressurizing member may maintain the ball (410) in a close contact state. By means of the ball pressurizing member, the ball (410) may be maintained in contact with the lens holder (210) and the housing (120).

[0103] The lens actuator (10) may include a yoke (420). The ball pressurizing member may include the yoke (420). The yoke (420) may be disposed on the fixing member (100). The yoke (420) may be disposed on the substrate (140). The yoke (420) may be disposed on the outer surface of the substrate (140). The yoke (420) may be disposed on the housing (120). The yoke (420) may be disposed on the base (110). The yoke (420) may be disposed on the cover (130). The yoke (420) may be disposed on the side plate (132) of the cover (130). The yoke (420) may be disposed between the substrate (140) and the side plate (132) of the cover (130). The yoke (420) may be positioned corresponding to the AF magnet (320). The yoke (420) may overlap the AF magnet (320) in a direction perpendicular to the optical axis. An attractive force may be applied between the yoke (420) and the AF magnet (320). Through this, the ball (410) may be pressed between the lens holder (210) and the housing (120).

[0104] The lens actuator (10) may include an aperture assembly (500). The aperture assembly (500) may be an aperture device. The aperture assembly (500) may be an aperture. The aperture assembly (500) may control the amount of light passing through the lens (220). The aperture assembly (500) may control the amount of light incident on the image sensor (60). The aperture assembly (500) may include a hole (501) through which light passes. The aperture assembly (500) may control the size of the hole (501) through which light passes.

[0105] The aperture assembly (500) can be disposed on the lens (220). The aperture assembly (500) can be disposed on the lens (220). The aperture assembly (500) can be coupled to the lens (220). The aperture assembly (500) can be fixed to the lens (220). The aperture assembly (500) can move integrally with the lens (220). The aperture assembly (500) can move together with the lens (220). The aperture assembly (500) can move in the optical axis direction together with the lens (220). At least a portion of the aperture assembly (500) can be disposed between a plurality of lenses.

[0106] The aperture assembly (500) may include a stator (510). The stator (510) may be a fixed member. The stator (510) may be a member that is relatively fixed with respect to the rotor (520). The stator (510) may movably support the rotor (520). The stator (510) may be coupled to a cover (540). The stator (510) may accommodate the rotor (520). The stator (510) may movably support the rotor (520).

[0107] The stator (510) may include a protrusion (511). The protrusion (511) may be a fixed boss. The protrusion (511) may be coupled to the blade (530). The protrusion (511) may be positioned in the first hole (531) of the blade (530). The protrusion (511) may be inserted into the first hole (531) of the blade (530). The blade (530) may pivotally move about the protrusion (511) of the stator (510).

[0108] The stator (510) may include a first groove (512). The first groove (512) may be a ball rail. A ball (560) may be placed in the first groove (512). The ball (560) may be placed on the first groove (512). The first groove (512) may contact the ball (560) at one or two points. The ball (560) may move along the first groove (512). The ball (560) may roll along the first groove (512).

[0109] The stator (510) may include a second groove (513). The second groove (513) may be a yoke receiving groove. A yoke (572) may be arranged in the second groove (513). The yoke (572) may be arranged on the second groove (513).

[0110] The stator (510) may include an adhesive tank (514). The adhesive tank (514) may be formed on the lower surface of the stator (510). The adhesive tank (514) may be formed concavely on the lower surface of the stator (510). An adhesive may be placed in the adhesive tank (514). The adhesive placed in the adhesive tank (514) may bond the stator (510) and the second lens (222).

[0111] The aperture assembly (500) may include a rotor (520). The rotor (520) may be a moving part. The rotor (520) may be a movable part. The rotor (520) may be a mover. The rotor (520) may be a mover. The rotor (520) may be a mover. The rotor (520) may be a carrier.

[0112] The rotor (520) may be disposed on the stator (510). The rotor (520) may be disposed on the stator (510). The rotor (520) may be movably disposed on the stator (510). The rotor (520) may be rotatably disposed on the stator (510). The rotor (520) may be disposed on the stator (510). The rotor (520) may be disposed within the stator (510). The rotor (520) may be disposed within the cover (540). The rotor (520) may rotate within the stator (510). The rotor (520) may rotate within the cover (540). The rotor (520) may move the blade (530). The rotor (520) may move together with the blade (530).

[0113] The rotor (520) may include a protrusion (521). The protrusion (521) may be a movable boss. The protrusion (521) may protrude upward from the body of the rotor (520). The protrusion (521) may be formed on the upper surface of the body of the rotor (520). The protrusion (521) may be coupled with the blade (530). Through this, when the rotor (520) moves, the blade (530) may also move together. The protrusion (521) may be arranged in the second hole (532) of the blade (530). The protrusion (521) may be arranged to be movable within the second hole (532) of the blade (530). The protrusion (521) may be inserted into the second hole (532) of the blade (530). The protrusion (521) can move within the second hole (532) of the blade (530).

[0114] The rotor (520) may include a groove (522). The groove (522) may be a ball rail. A ball (560) may be disposed in the groove (522). The ball (560) may be disposed on the groove (522). The groove (522) may contact the ball (560) at one or two points. The ball (560) may move along the groove (522). The ball (560) may roll along the groove (522).

[0115] The rotor (520) may include a hole (523). The hole (523) may be a fixed boss passage hole. A protrusion (511) of the stator (510) may be positioned in the hole (523). The protrusion (511) of the stator (510) may be positioned to pass through the hole (523).

[0116] The rotor (520) may include a magnet receptacle. An aperture magnet (552) may be disposed in the magnet receptacle. The magnet receptacle (204) may accommodate at least a portion of the aperture magnet (552).

[0117] The aperture assembly (500) may include a blade (530). The blade (530) may be a member that blocks light. The blade (530) may be a light-blocking member. The blade (530) may be disposed on the stator (510). The blade (530) may be disposed on the stator (510). The blade (530) may be disposed within the cover (540). The blade (530) may be disposed on the rotor (520). The blade (530) may be disposed on the rotor (520). The blade (530) may move together with the rotor (520). That is, when the rotor (520) moves, the blade (530) may also move together.

[0118] The blade (530) may include a plurality of blades. The blade (530) may include a plurality of blades forming a hole (501) through which light passes. The blade (530) may include six blades. The blade (530) may include first to sixth blades (530-1, 530-2, 530-3, 530-4, 530-5, 530-6).

[0119] The plurality of blades (530) may include first to third blades (530-1, 530-2, 530-3) arranged at the same height as each other, and fourth to sixth blades (530-4, 530-5, 530-6) arranged at the same height as each other above the first to third blades (530-1, 530-2, 530-3). That is, in the first embodiment, the first to sixth blades (530-1, 530-2, 530-3, 530-4, 530-5, 530-6) may be arranged in two layers. The first to sixth blades (530-1, 530-2, 530-3, 530-4, 530-5, 530-6) may be arranged in multiple layers.

[0120] The blade (530) may include a first hole (531). The blade (530) may include a second hole (532). Each of the stator (510) and the rotor (520) may include protrusions (511, 521). The blade (530) may include a first hole (531) in which the protrusion (511) of the stator (510) is disposed, and a second hole (532) in which the protrusion (521) of the rotor (520) is disposed. The first hole (531) of the blade (630) may be a circular hole. The second hole (532) of the blade (630) may be an elongated hole formed such that the protrusion (521) of the rotor (520) can move within the second hole (532).

[0121] The aperture assembly (500) may include a cover (540). The stator (510) may include a cover (540). The cover (540) may be disposed on the stator (510). The cover (540) may be disposed on the stator (510). The cover (540) may accommodate a rotor (520) therein. The cover (540) may include a top plate (541) and a side plate (542) extending from the top plate (541).

[0122] The top plate (541) of the cover (540) may include a first groove (541 a). The top plate (541) of the cover (540) may include a second groove (541 b). The cover (540) may include a first groove (541 a) in which a protrusion (511) of the stator (510) is arranged, and a second groove (541 b) in which a protrusion (521) of the rotor (520) is arranged. The first groove (541 a) of the cover (540) may be a circular groove. The second groove (541 b) of the cover (540) may be a long groove formed so that the protrusion (521) of the rotor (520) can move within the second groove (541 b).

[0123] As illustrated in FIG. 19, a gap (see gap in FIG. 19) may be formed between the cover (540) and the first lens (221) so as to be spaced apart in the direction of the optical axis. Adhesive may be injected through the gap. Alternatively, a protrusion may be formed on the upper end of the inner edge of the cover (540) to prevent the adhesive injected through the gap from flowing along the first lens (221).

[0124] The aperture assembly (500) may include an aperture drive unit (550). The aperture drive unit (550) may move the rotor (520). The aperture drive unit (550) may move the blades (530). The aperture drive unit (550) may move the rotor (520) through electromagnetic interaction. The aperture drive unit (550) may include an aperture magnet (552) and an aperture coil (551). The aperture coil (551) and the aperture magnet (552) may move a plurality of blades. The aperture coil (551) and the aperture magnet (552) may rotate the rotor (520) relative to the stator (510). When the rotor (520) rotates, the size of the hole (501) formed by the plurality of blades (530) may change.

[0125] The aperture assembly (500) may include an aperture coil (551). The aperture drive unit (550) may include the aperture coil (551). The aperture coil (551) may be disposed on a substrate (553). The aperture coil (551) may be coupled to the substrate (553). The aperture coil (551) may be soldered to the substrate (553). The aperture coil (551) may be electrically connected to the substrate (553). The aperture coil (551) may be disposed on a housing (120). The aperture coil (551) may be disposed on a base (110). The aperture coil (551) may be disposed on a cover (130). The aperture coil (551) may be disposed on a side plate (132) of the cover (130). The aperture coil (551) can be placed on the fixed part (100).

[0126] The aperture coil (551) may be positioned corresponding to the aperture magnet (552). The aperture coil (551) may overlap with the aperture magnet (552). The aperture coil (551) may overlap with the aperture magnet (552) in a direction perpendicular to the optical axis. The aperture coil (551) may face the aperture magnet (552). The aperture coil (551) may face the magnet (250). The aperture coil (551) may interact with the aperture magnet (552). The aperture coil (551) may electromagnetically interact with the aperture magnet (552). When current is applied to the aperture coil (551), the aperture magnet (552) can move due to the interaction between the electromagnetic field of the aperture coil (551) and the electromagnetic field of the magnet aperture magnet (552). The aperture coil (551) can move the aperture magnet (552). The aperture coil (551) can remain relatively fixed when the aperture magnet (552) moves.

[0127] Alternatively, the aperture coil (551) may be placed on the rotor (520) and the aperture magnet (552) may be placed on the fixed portion (100). The aperture coil (551) may move together with the rotor (520) and the aperture magnet (552) may be fixed.

[0128] The aperture assembly (500) may include an aperture magnet (552). The aperture drive unit (550) may include an aperture magnet (552). The aperture magnet (552) may be disposed on the rotor (520). The aperture magnet (552) may be disposed on the rotor (520). The aperture magnet (552) may be coupled to the rotor (520). The aperture magnet (552) may be fixed to the rotor (520). The aperture magnet (552) may be adhesively bonded to the rotor (520).

[0129] The aperture magnet (552) is movable. The aperture magnet (552) can move through interaction with the aperture coil (551). The aperture magnet (552) can move integrally with the rotor (520). The aperture magnet (552) can move together with the rotor (520). The blade (530) can also move together with the movement of the aperture magnet (552).

[0130] The aperture assembly (500) may include a substrate (553). The substrate (553) may be disposed on the fixing member (100). The substrate (553) may be disposed on the base (110). The substrate (553) may be disposed on the housing (120). The substrate (553) may be disposed on the cover (130). The substrate (553) may be disposed on the side plate (132) of the cover (130). An aperture coil (551) may be disposed on the substrate (553). An aperture sensor (554) may be disposed on the substrate (553).

[0131] The aperture assembly (500) may include an aperture sensor (554). The aperture drive unit (550) may include the aperture sensor (554). The aperture sensor (554) may be disposed on a substrate (553). The aperture sensor (554) may be electrically connected to the substrate (553). The aperture sensor (554) may detect an aperture magnet (552). The aperture sensor (554) may be a Hall sensor. The aperture sensor (554) may detect a magnetic force of the aperture magnet (552). The aperture sensor (554) may be disposed at a position corresponding to the aperture magnet (552). The aperture sensor (554) may overlap the aperture magnet (552) in a direction perpendicular to the optical axis. Control of the blade (530) can be fed back in real time through the position of the aperture magnet (552) detected by the aperture sensor (554). That is, the blade (530) can be feedback controlled in real time by the aperture sensor (554).

[0132] In this embodiment, when current is applied to the coil (420), the aperture magnet (552) can move due to the electromagnetic interaction between the coil (420) and the aperture magnet (552). At this time, the rotor (520) can move together with the aperture magnet (552). As the rotor (520) moves, the protrusion (521) of the rotor (520) can press and move the blade (530) within the second hole (532) of the blade (530). At this time, the blade (530) can pivotally move around the protrusion (511). Through this, the diameter of the hole (501) formed by the plurality of blades can be changed.

[0133] When the size of the hole (501) is at its maximum as in (a) of Fig. 21, when a unidirectional current is applied to the aperture coil (551) and the aperture magnet (552) moves counterclockwise when viewed from above (see a of (a) of Fig. 21), the size of the hole (501) can be reduced as in (b) of Fig. 21. In addition, when an additional unidirectional current is applied to the aperture coil (551) and the aperture magnet (552) moves counterclockwise when viewed from above (see b of (b) of Fig. 21), the size of the hole (501) can be further reduced as in (c) of Fig. 21. Meanwhile, when the size of the hole (501) is minimum as in (c) of FIG. 21, if a current in another direction is applied to the aperture coil (551) so that the aperture magnet (552) moves clockwise when viewed from above (see d of (c) of FIG. 21), the size of the hole (501) may increase as in (b) of FIG. 21. In addition, when an additional current in another direction is applied to the aperture coil (551) so that the aperture magnet (552) moves clockwise when viewed from above (see c of (b) of FIG. 21), the size of the hole (501) may increase further as in (a) of FIG. 21. Although the size of the hole (501) has been described above as changing in three steps, this is an example, and the size of the hole (501) may be controlled to change in six, eight, or more steps, or continuously.

[0134] The aperture assembly (500) may include a guide member. The guide member may guide movement of the rotor (520) relative to the stator (510).

[0135] The aperture assembly (500) may include a ball (560). The guide member may include a ball (560). The ball (560) may be disposed between a stator (510) and a rotor (520). The ball (560) may be disposed in the stator (510). The ball (560) may be in contact with the stator (510). The ball (560) may move along the stator (510). The ball (560) may move along the first groove (512) of the stator (510). The ball (560) may be disposed in the rotor (520). The ball (560) may be in contact with the rotor (520). The ball (560) may move along the rotor (520). The ball (560) may move along the groove (522) of the rotor (520). The ball (560) can be placed between the first groove (512) of the stator (510) and the groove (522) of the rotor (520).

[0136] The ball (560) can guide the movement of the rotor (520) in the circumferential direction. That is, the ball (560) can guide the rotor (520) to rotate around the optical axis. The ball (560) can restrict the rotor (520) to only rotate around the optical axis.

[0137] Ball (560) may include multiple balls. Ball (560) may include three balls. Ball (560) may include first to third balls.

[0138] The aperture assembly (500) may include a ball pressurizing member. The ball pressurizing member may press the ball (560) against the rotor (520) and the stator (510).

[0139] The aperture assembly (500) may include a manpower magnet (571). The ball pressurizing member may include a manpower magnet (571). The manpower magnet (571) may include a plurality of manpower magnets. The manpower magnet (571) may include three manpower magnets. In the present embodiment, the manpower magnet (571) may be separate from the aperture magnet (552). The aperture magnet (552) may be spaced apart from the manpower magnet (571).

[0140] The aperture assembly (500) may include a yoke (572). The ball pressurizing member may include the yoke (572). An attractive force may be applied between the attractive magnet (571) and the yoke (572). The attractive magnet (571) and the yoke (572) may be positioned at corresponding positions. The attractive magnet (571) and the yoke (572) may overlap each other in the optical axis direction. The ball (560) may be pressed between the stator (510) and the rotor (520) by the attractive force between the attractive magnet (571) and the yoke (572). The yoke (572) may include a plurality of yokes. The yoke (572) may include three yokes.

[0141] The human magnet (571) can be placed on either the stator (510) or the rotor (520). The yoke (572) can be placed on the other of the stator (510) and the rotor (520). The human magnet (571) can be placed on the rotor (520). The yoke (572) can be placed on the stator (510). Conversely, the human magnet (571) can be placed on the stator (510). The yoke (572) can be placed on the rotor (520).

[0142] Fig. 30 is an exploded perspective view of a camera device according to the present embodiment.

[0143] The camera device (10A) may include a lens driving device (10). The lens driving device (10) may be a device that drives a lens. The lens driving device (10) may move the lens.

[0144] The camera device (10A) may include a filter (30). The filter (30) may block light of a specific frequency band from passing through the lens (220) from being incident on the image sensor (60). The filter (30) may be arranged parallel to the xy plane. The filter (30) may be arranged between the lens (220) and the image sensor (60). The filter (30) may be arranged on the sensor base (40). Alternatively, the filter (30) may be arranged on the base (110) of the lens driving device (10). The filter (30) may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor (60).

[0145] The camera device (10A) may include a sensor base (40). The sensor base (40) may be disposed between the lens actuator (10) and the printed circuit board (50). The sensor base (40) may include a protrusion (41) on which a filter (30) is disposed. An opening may be formed in a portion of the sensor base (40) on which the filter (30) is disposed so that light passing through the filter (30) may be incident on the image sensor (60). The adhesive member may couple or adhere the base (110) of the lens actuator (10) to the sensor base (40). The adhesive member may additionally serve to prevent foreign substances from entering the interior of the lens actuator (10). The adhesive member may include at least one of an epoxy, a thermosetting adhesive, and an ultraviolet-curable adhesive.

[0146] The camera device (10A) may include a printed circuit board (PCB) (50). The printed circuit board (50) may be a substrate or a circuit board. A lens driving device (10) may be disposed on the printed circuit board (50). A sensor base (40) may be disposed between the printed circuit board (50) and the lens driving device (10). The printed circuit board (50) may be electrically connected to the lens driving device (10). An image sensor (60) may be disposed on the printed circuit board (50). Various circuits, components, control units, etc. may be provided on the printed circuit board (50) to convert an image formed on the image sensor (60) into an electrical signal and transmit it to an external device.

[0147] The camera device (10A) may include an image sensor (60). The image sensor (60) may be configured to form an image by incident light passing through a lens and a filter (30). The image sensor (60) may be mounted on a printed circuit board (50). The image sensor (60) may be electrically connected to the printed circuit board (50). For example, the image sensor (60) may be coupled to the printed circuit board (50) using surface mounting technology (SMT). As another example, the image sensor (60) may be coupled to the printed circuit board (50) using flip chip technology. The image sensor (60) may be arranged such that its optical axis is aligned with that of the lens. That is, the optical axis of the image sensor (60) and the optical axis of the lens may be aligned. The image sensor (60) can convert light irradiated to the effective image area of ​​the image sensor (60) into an electrical signal. The image sensor (60) can be any one of a CCD (charge coupled device), a MOS (metal oxide semi-conductor), a CPD, and a CID.

[0148] The camera device (10A) may include a motion sensor (70). The motion sensor (70) may be mounted on a printed circuit board (50). The motion sensor (70) may be electrically connected to a control unit (80) through a circuit pattern provided on the printed circuit board (50). The motion sensor (70) may output rotational angular velocity information due to the movement of the camera device (10A). The motion sensor (70) may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0149] The camera device (10A) may include a control unit (80). The control unit (80) may be disposed on a printed circuit board (50). The control unit (80) may be electrically connected to the AF coil (310) of the lens driving device (10). The control unit (80) may be electrically connected to the AF sensor (330) of the lens driving device (10). The control unit (80) may individually control the direction, intensity, amplitude, etc. of the current supplied to the AF coil (310). The control unit (80) may control the lens driving device (10) to perform an auto focus function and / or a shake correction function. Furthermore, the control unit (80) may perform auto focus feedback control and / or shake correction feedback control for the lens driving device (10). The control unit (80) may control the aperture assembly (500, 600). The control unit (80) can be electrically connected to the aperture coil (551). The control unit (80) can be electrically connected to the aperture sensor (554). The control unit (80) can control the current applied to the aperture coil (551) of the aperture assembly (500, 600).

[0150] The camera device (10A) may include a connector (90). The connector (90) may be electrically connected to a printed circuit board (50). The connector (90) may include a port for electrically connecting to an external device.

[0151]

[0152] Hereinafter, a camera device according to a second embodiment of the present invention will be described with reference to drawings, focusing on the differences between the camera device according to the first embodiment and the camera device according to the first embodiment.

[0153] Fig. 22 is a perspective view showing a part of an aperture assembly according to a second embodiment of the present invention. Fig. 23 is a perspective view showing a state in which the rotor is omitted from Fig. 22. Fig. 24 is a perspective view showing a state in which the blade is omitted from Fig. 23. Fig. 25 (a) is a perspective view showing a blade of an aperture assembly according to a second embodiment of the present invention, and (b) is a bottom perspective view. Fig. 26 (a) is a perspective view showing two adjacent blades of an aperture assembly according to a second embodiment of the present invention, and (b) is a bottom perspective view. Fig. 27 (a) is a cross-sectional perspective view showing two adjacent blades of an aperture assembly according to a second embodiment of the present invention, and (b) is a cross-sectional view. Figs. 28 (a), (b), and (c) are drawings for explaining holes of an aperture assembly controlled to various sizes in the second embodiment of the present invention. Figures 29 (a) and (b) are bottom views showing the hole states of two different sized aperture assemblies as viewed from below.

[0154] A camera device according to a second embodiment of the present invention may include a fixed portion (100), a moving portion (200), a driving portion (300), and a guide portion. The description of the fixed portion (100), the moving portion (200), the driving portion (300), and the guide portion may be analogously applied to the description of the camera device according to the first embodiment of the present invention.

[0155] Below, the aperture assembly (600) of the second embodiment, which has a configuration different from the first embodiment, will be mainly described.

[0156] A camera device according to a second embodiment of the present invention may include an aperture assembly (600).

[0157] The lens actuator (10) may include an aperture assembly (600). The aperture assembly (600) may be an aperture device. The aperture assembly (600) may be an aperture. The aperture assembly (600) may control the amount of light passing through the lens (220). The aperture assembly (600) may control the amount of light incident on the image sensor (60). The aperture assembly (600) may include a hole (601) through which light passes. The aperture assembly (600) may control the size of the hole (601) through which light passes.

[0158] The aperture assembly (600) can be disposed on the lens (220). The aperture assembly (600) can be disposed on the lens (220). The aperture assembly (600) can be coupled to the lens (220). The aperture assembly (600) can be fixed to the lens (220). The aperture assembly (600) can move integrally with the lens (220). The aperture assembly (600) can move together with the lens (220). The aperture assembly (600) can move in the optical axis direction together with the lens (220). At least a portion of the aperture assembly (600) can be disposed between a plurality of lenses.

[0159] The aperture assembly (600) may include a stator (610). The stator (610) may be a fixed member. The stator (610) may be a member that is relatively fixed with respect to the rotor (620). The stator (610) may movably support the rotor (620). The stator (610) may be coupled to a cover. The stator (610) may movably support the rotor (620).

[0160] The stator (610) may include a hole or groove (611) in which the first protrusion (631) of the blade (630) is arranged. The hole or groove (611) of the stator (610) may have an outer edge formed in a hexagonal shape when viewed in the optical axis direction. The hole or groove (611) of the stator (610) may have an inner edge formed in a hexagonal shape when viewed in the optical axis direction.

[0161] The aperture assembly (600) may include a rotor (620). The rotor (620) may be a moving part. The rotor (620) may be a movable part. The rotor (620) may be a mover. The rotor (620) may be a mover. The rotor (620) may be a mover. The rotor (620) may be a carrier.

[0162] The rotor (620) can be disposed on the stator (610). The rotor (620) can be disposed on the stator (610). The rotor (620) can be movably disposed on the stator (610). The rotor (620) can be rotatably disposed on the stator (610). The rotor (620) can be disposed on the stator (610). The rotor (620) can be disposed within the stator (610). The rotor (620) can be disposed within the cover. The rotor (620) can rotate on the stator (610). The rotor (620) can rotate within the cover. The rotor (620) can move the blade (630). The rotor (620) can move together with the blade (630).

[0163] The rotor (620) may include a hole (621) or groove in which the second protrusion (632) of the blade (630) is arranged. The hole (621) or groove of the rotor (620) may be formed of six holes spaced apart from each other.

[0164] The aperture assembly (600) may include a blade (630). The blade (630) may be a member that blocks light. The blade (630) may be a light-blocking member. The blade (630) may be disposed on the stator (610). The blade (630) may be disposed within a cover. The blade (630) may be disposed on the rotor (620). The blade (630) may be disposed on the rotor (620). The blade (630) may move together with the rotor (620). That is, when the rotor (620) moves, the blade (630) may also move together.

[0165] The blade (630) may include a plurality of blades. The blade (630) may include a plurality of blades forming a hole (601) through which light passes. The blade (630) may include six blades. The blade (630) may include first to sixth blades (630-1, 630-2, 630-3, 630-4, 630-5, 630-6).

[0166] The plurality of blades (630) may be arranged at the same height so as to overlap each other in a direction perpendicular to the optical axis. That is, in the second embodiment, the plurality of blades (630) may be arranged in a single layer. The plurality of blades (630) may be arranged in one layer.

[0167] The plurality of blades (630) may include a first blade (630-1) and a second blade (630-2) in contact with the first blade (630-1).

[0168] The first blade (630-1) may include a first area (FA) forming a hole (601) and a first surface (FS) including a second area (SA) in contact with the second blade (630-2). The first surface (FS) of the first blade (630-1) may be inclined so as to become closer to the optical axis from the bottom to the top. The first surface (FS) of the first blade (630-1) may be formed as a plane. The first surface (FS) of the first blade (630-1) may be an inclined surface.

[0169] The second blade (630-2) may include a second surface (SS) that contacts the second area (SA) of the first surface (FS) of the first blade (630-1). The second surface (SS) of the second blade (630-2) may have a slope corresponding to the first surface (FS) of the first blade (630-1). The second surface (SS) of the second blade (630-2) may be formed as a plane. The second surface (SS) of the second blade (630-2) may be an inclined surface.

[0170] The first blade (630-1) and the second blade (630-2) may overlap each other in the optical axis direction. The first surface (FS) of the first blade (630-1) and the second surface (SS) of the second blade (630-2) may overlap each other in the optical axis direction. The second area (SA) of the first surface (FS) of the first blade (630-1) and the second surface (SS) of the second blade (630-2) may overlap each other in the optical axis direction.

[0171] The phenomenon of light leaking between the first blade (630-1) and the second blade (630-2) can be prevented through the inclined surface structure and overlapping structure of the first blade (630-1) and the second blade (630-2) described. That is, in the second embodiment, even though a plurality of blades are arranged in one layer, the phenomenon of light leaking between the plurality of blades can be prevented through the inclined surface overlapping structure.

[0172] The blade (630) may include a third surface (LS) arranged perpendicular to the optical axis, a fourth surface (US) opposite the third surface (LS), a first protrusion (631) formed on the third surface (LS), and a second protrusion (632) formed on the fourth surface (US). The first protrusion (631) of the blade (630) may be formed in a square column shape. The second protrusion (632) of the blade (630) may be formed in a cylindrical shape.

[0173] The aperture assembly (600) may include one or more of a cover, an aperture drive unit, an aperture coil, an aperture magnet, a substrate, an aperture sensor, a ball, a magnetic attraction magnet, and a yoke. In this case, the description of the cover (540), the aperture drive unit (550), the aperture coil (551), the aperture magnet (552), the substrate (553), the aperture sensor (554), the ball (560), the magnetic attraction magnet (571), and the yoke (572) of the first embodiment may be applied analogously.

[0174] When the size of the hole (601) is at its maximum as in (a) of Fig. 28, when a unidirectional current is applied to the aperture coil (551) and the aperture magnet (552) moves counterclockwise when viewed from above (see a of (a) of Fig. 28), the size of the hole (601) can be reduced as in (b) of Fig. 28. In addition, when an additional unidirectional current is applied to the aperture coil (551) and the aperture magnet (552) moves counterclockwise when viewed from above (see b of (b) of Fig. 28), the size of the hole (601) can be further reduced as in (c) of Fig. 28. Meanwhile, when the size of the hole (601) is minimum as in (c) of FIG. 28, when a current in another direction is applied to the aperture coil (551) so that the aperture magnet (552) moves clockwise when viewed from above (see d of (c) of FIG. 28), the size of the hole (601) may increase as in (b) of FIG. 28. In addition, when an additional current in another direction is applied to the aperture coil (551) so that the aperture magnet (552) moves clockwise when viewed from above (see c of (b) of FIG. 28), the size of the hole (601) may increase further as in (a) of FIG. 28. Although the size of the hole (601) has been described above as changing in three steps, this is an example, and the size of the hole (601) may be controlled to change in six, eight, or more steps, or continuously.

[0175] Figures 29 (a) and (b) show the first area (FA) of the first surface (FS) of the blade (630) from a low angle view. That is, the first surface (FS) can be formed as an inclined surface that is not visible when viewed from above but is visible when viewed from below.

[0176]

[0177] Below, the configuration of the optical device according to the present embodiment is described with reference to the drawings.

[0178] Fig. 31 is a perspective view of an optical device according to the present embodiment.

[0179] The optical device (1) may include one or more of a mobile phone, a cell phone, a portable terminal, a mobile terminal, a smart phone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), and a navigation device. The optical device (1) may include any device for taking images or photographs.

[0180] An optical device (1) may include a main body (2). The optical device (1) may include a camera device (10A). The camera device (10A) may be disposed on the main body (2). The camera device (10A) may photograph a subject. The optical device (1) may include a display. The display may be disposed on the main body (2). The display may output one or more of a video or image captured by the camera device (10A). The display may be disposed on a first surface of the main body (2). The camera device (10A) may be disposed on one or more of the first surface of the main body (2) and a second surface opposite the first surface. The camera device (10A) may have a triple camera disposed in a vertical direction. Alternatively, the camera device (10A) may have a triple camera disposed in a horizontal direction.

[0181]

[0182] Although the embodiments of the present invention have been described with reference to the attached drawings, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical concept or essential features thereof. Therefore, the embodiments described above should be understood to be illustrative in all respects and not restrictive.

Claims

1. Base; A lens holder placed on the above base; A lens coupled with the above lens holder; A first coil and a first magnet that move the lens in the optical axis direction; and Including an aperture assembly that moves integrally with the lens, The above aperture assembly includes a plurality of blades forming holes through which light passes, and a second coil and a second magnet for moving the plurality of blades. The above plurality of blades are all arranged at the same height so as to overlap each other in a direction perpendicular to the optical axis, The plurality of blades includes a first blade and a second blade in contact with the first blade, The first blade includes a first surface including a first region forming the hole and a second region in contact with the second blade, A camera device in which the first surface of the first blade is inclined so as to become closer to the optical axis from the bottom to the top.

2. In paragraph 1, A camera device in which the first surface of the first blade is formed as a plane.

3. In paragraph 1, The second blade includes a second surface that contacts the second area of ​​the first surface of the first blade, A camera device in which the second surface of the second blade has a slope corresponding to the first surface of the first blade.

4. In paragraph 1, A camera device in which the first blade and the second blade overlap each other in the optical axis direction.

5. In paragraph 1, The above aperture assembly includes a stator and a rotor, The second coil and the second magnet rotate the rotor relative to the stator, A camera device in which the size of the hole formed by the plurality of blades changes when the rotor rotates.

6. In paragraph 5, The blade includes a third surface arranged perpendicular to the optical axis, a fourth surface opposite the third surface, a first protrusion formed on the third surface, and a second protrusion formed on the fourth surface. The stator includes a hole or groove in which the first projection of the blade is placed, A camera device wherein the rotor includes a hole or groove in which the second protrusion of the blade is placed.

7. In paragraph 6, A camera device in which the hole or groove of the stator has an outer edge formed in a hexagonal shape when viewed in the optical axis direction.

8. In paragraph 6, A camera device in which the above hole or groove of the above rotor is formed by six holes spaced apart from each other.

9. In paragraph 6, The first protrusion of the above blade is formed in a square pillar shape, A camera device in which the second protrusion of the above blade is formed in a cylindrical shape.

10. In paragraph 1, The above lens includes a first lens and a second lens, A camera device wherein the blade is positioned between the first lens and the second lens.

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