Aperture device, camera device, and optical device

Abstract

An aperture device according to the present embodiment comprises: a fixed assembly including a first driving part; a moving assembly including a second driving part; a blade part coupled to the fixed assembly and the moving assembly; a ball disposed between the fixed assembly and the moving assembly; and a sensor disposed on the fixed assembly, wherein the sensor overlaps the second driving part in a direction perpendicular to an optical axis direction.

Description

Aperture devices, camera devices and optical instruments

[0001] The present embodiment relates to an aperture device, 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] The present embodiment aims to provide a camera device that can be used without performance limitations even in dark environments. Furthermore, the present invention aims to provide an aperture device for the aforementioned camera device.

[0006] In order to solve the above technical problem, an aperture device according to an embodiment of the present invention includes a fixed assembly including a first driving unit; a moving assembly including a second driving unit; a blade unit coupled with the fixed assembly and the moving assembly; a ball disposed between the fixed assembly and the moving assembly; and a sensor disposed in the fixed assembly, wherein the sensor overlaps the second driving unit in a direction perpendicular to the optical axis direction.

[0007] The above fixed assembly includes a housing in which the blade portion is disposed and a substrate disposed on the housing, and the housing may include a first extension portion extending in one direction from an edge and a second extension portion extending in the direction of the optical axis from the first extension portion.

[0008] The substrate includes a third extension portion extending in one direction from the opening and a fourth extension portion extending in the optical axis direction from the third extension portion, and the sensor can be arranged in the fourth extension portion of the substrate.

[0009] The third extension portion of the substrate may be disposed on the first extension portion of the housing, and the fourth extension portion of the substrate may be disposed on the second extension portion of the housing.

[0010] The first driving unit may include a coil, and the second driving unit may include a magnet.

[0011] The first driving unit may include a plurality of coils spaced apart from each other, and the fixed assembly may include a substrate electrically connecting the plurality of coils.

[0012] The substrate may include a plurality of mounting portions corresponding to respective edge shapes of the plurality of coils, and the substrate may include a plurality of wing portions extending radially from the opening.

[0013] Each of the plurality of wing portions of the above substrate may have a pattern coil arranged thereon that electrically connects the plurality of coils.

[0014] The above fixed assembly includes a substrate on which the sensor is placed, and includes a first cover member placed on the fixed assembly and the moving assembly, and the first cover member may include a recessed portion that is recessed in one direction into the side plate and through which the substrate passes.

[0015] The above first cover member may include an escape portion that is sunken in the side plate in a different direction and faces the sensor.

[0016] The recessed portion and the escape portion of the first cover member may overlap in the optical axis direction.

[0017] It includes a first guide member arranged on the inside of the first cover member, and the first guide member may include a first guide groove in which the ball is arranged.

[0018] The above fixed assembly may include a second guide member disposed below the first guide member, and the second guide member may include a second guide groove in which the ball is disposed.

[0019] The above moving assembly may include a plurality of magnets and a magnet support member in which the plurality of magnets are spaced apart from each other, and may include a third guide groove in which the ball is arranged on an outer surface of the magnet support member.

[0020] The above fixed assembly may include a housing in which the blade portion is disposed, the housing may include a first protrusion inserted into a first hole of the blade portion, and the magnet support member may include a second protrusion inserted into a second hole of the blade portion.

[0021] The above blade section includes six blades, and three of the six blades can be placed on the first floor, and the remaining three blades can be placed on the second floor below the first floor.

[0022] In order to solve the above technical problem, a camera device according to an embodiment of the present invention includes a printed circuit board; an image sensor disposed on the printed circuit board; a lens disposed on the image sensor; and an aperture device disposed on the lens.

[0023] In order to solve the above technical problem, an optical device according to an embodiment of the present invention includes a main body; a camera device according to claim 16 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] Through this embodiment, the camera function of a smartphone can be used without performance limitations even in a dark environment.

[0025] Additionally, the magnet injection structure can be used to implement an ultra-thin rotor and prevent cracks, thereby increasing reliability.

[0026] In addition, by securing the separation distance between the sensor and the magnet in an ultra-thin aperture device, the sensing precision and sensing linearity of the sensor can be implemented.

[0027] Fig. 1 is a perspective view of an aperture device according to the present embodiment.

[0028] Fig. 2 is a perspective view of the aperture device according to the present embodiment from another angle.

[0029] Fig. 3 is an exploded perspective view of an aperture device according to the present embodiment.

[0030] Fig. 4 is an exploded perspective view of an aperture device according to the present embodiment.

[0031] Fig. 5 is a cross-sectional view of an aperture device according to the present embodiment.

[0032] Figure 6 is a perspective view of the first cover member and the first guide member according to the present embodiment.

[0033] Figure 7 is a perspective view of the first cover member and the first and second guide members according to the present embodiment.

[0034] Figure 8 is an enlarged cross-sectional view of area A of Figure 7.

[0035] Figure 9 is an exploded perspective view of a fixed assembly according to the present embodiment.

[0036] Fig. 10 is a perspective view of a fixed assembly according to the present embodiment.

[0037] Figure 11 is an exploded perspective view of a moving assembly according to the present embodiment.

[0038] Fig. 12 is a perspective view of a magnet support member according to the present embodiment.

[0039] Fig. 13 is a perspective view of a magnet support member according to the present embodiment from another angle.

[0040] Fig. 14 is a perspective view of a blade portion according to the present embodiment.

[0041] Figure 15 is a perspective view of the blade section according to this embodiment divided into two layers.

[0042] Fig. 16 is a perspective view of the fixed assembly, blade portion, and magnet combined according to the present embodiment.

[0043] Fig. 17 is a perspective view of a camera device according to the present embodiment.

[0044] Fig. 18 is a perspective view of an optical device according to the present embodiment.

[0045] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0046] 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.

[0047] In addition, terms (including technical and scientific terms) used in this embodiment may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which this embodiment 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.

[0048] Additionally, the terms used in this embodiment are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0049] 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.

[0050] Additionally, in describing the components of this embodiment, 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.

[0051] 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.

[0052] 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.

[0053] The 'optical axis direction' used below is defined as the optical axis direction of the lens and / or image sensor coupled to the lens driving device.

[0054] 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'.

[0055] 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.

[0056]

[0057] FIG. 1 is a perspective view of an aperture device according to the present embodiment, FIG. 2 is a perspective view of the aperture device according to the present embodiment when viewed from another angle, FIG. 3 is an exploded perspective view of the aperture device according to the present embodiment, FIG. 4 is an exploded perspective view of the aperture device according to the present embodiment, FIG. 5 is a cross-sectional view of the aperture device according to the present embodiment, FIG. 6 is a perspective view of a first cover member and a first guide member according to the present embodiment, FIG. 7 is a perspective view of a first cover member and first and second guide members according to the present embodiment, FIG. 8 is an enlarged cross-sectional view of area A of FIG. 7, FIG. 9 is an exploded perspective view of a fixed assembly according to the present embodiment, FIG. 10 is a perspective view of a fixed assembly according to the present embodiment, FIG. 11 is an exploded perspective view of a moving assembly according to the present embodiment, FIG. 12 is a perspective view of a magnet support member according to the present embodiment, FIG. 13 is a perspective view of a magnet support member according to the present embodiment when viewed from another angle, and FIG. 14 is a perspective view of a magnet support member according to the present embodiment. FIG. 15 is a perspective view of the blade section according to the present embodiment, FIG. 16 is a perspective view of the fixed assembly, blade section, and magnet combined according to the present embodiment.

[0058] The aperture device (1000) may be an aperture. The aperture device (1000) can control the amount of light passing through the lens. The aperture device (1000) can control the amount of light incident on the image sensor (75). The aperture device (1000) can control the size of the hole through which light passes.

[0059] The aperture device (1000) can be placed on the lens. The aperture device (1000) can be placed on the lens. The aperture device (1000) can be coupled to the lens. The aperture device (1000) can be fixed to the lens. The aperture device (1000) can move integrally with the lens. The aperture device (1000) can move together with the lens. The aperture device (1000) can move in the optical axis direction together with the lens.

[0060] The aperture device (1000) may include a fixed assembly (200). The fixed assembly (200) may be a stator. The fixed assembly (200) may be a part that is relatively fixed with respect to the movable assembly (300). The fixed assembly (200) may movably support the movable assembly (300).

[0061] The aperture device (1000) may include a moving assembly (300). The moving assembly (300) may be a rotor. The moving assembly (300) may be a rotating body. The moving assembly (300) may be a movable part. The moving assembly (300) may be a mover. The moving assembly (300) may be a mover. The moving assembly (300) may be a carrier.

[0062] The movable assembly (300) can be placed on the fixed assembly (200). The movable assembly (300) can be movably placed on the fixed assembly (200). The movable assembly (300) can be rotatably placed on the fixed assembly (200). The movable assembly (300) can move the blade unit (400). The movable assembly (300) can move together with the blade unit (400).

[0063]

[0064] The aperture device (1000) may include a first cover member (110). The first cover member (110) may have a ring shape including an opening. The first cover member (110) may include a side plate (111) and a curved portion (112) extending from the side plate (111). The first cover member (110) may be disposed on a fixed assembly (200). The first cover member (110) may be disposed on a moving assembly (300).

[0065] The first cover member (110) may include a recessed portion (113) that is recessed in one direction in the side plate (111). The recessed portion (113) may be an area through which the substrate (250) passes to be connected to the outside of the aperture device (1000). The recessed portion (113) may be an area through which the first extension portion (213) of the housing (210) and the third extension portion (253) of the substrate (250) pass. The recessed portion (113) may be recessed in a shape corresponding to the shape of the substrate (250). The recessed portion (113) may be recessed in a shape corresponding to the third extension portion (253) of the substrate (250). The recessed portion (113) may be recessed in a shape corresponding to the first extension portion (213) of the housing (210). In the first cover member (110), the curved portion (112) may be formed in one direction of the side plate (111), and the recessed portion (113) may be formed in the other direction of the side plate (111). In the first cover member (110), the curved portion (112) may be formed on the upper side of the side plate (111), and the recessed portion (113) may be formed on the lower side of the side plate (111).

[0066] The first cover member (110) may include a escaping portion (114) that is recessed in the other direction into the side plate (111). The escaping portion (114) may be formed on the curved portion (112) of the first cover member (110). The escaping portion (114) may overlap with the recessed portion (113) in the direction of the optical axis. The escaping portion (114) may be arranged to face the sensor (240). The escaping portion (114) may overlap with the sensor (240) in a direction perpendicular to the optical axis.

[0067] Through the escape portion (114), the sensor (240) may be positioned so as to face the first guide member (120) or the second guide member (220) rather than the first cover member (110). The escape portion (114) may be an open area for the sensor (240) to effectively detect the magnetic flux generated by the electromagnetic interaction between the magnet (330) and the coil (230).

[0068]

[0069] The aperture device (1000) may include a first guide member (120) disposed on a first cover member (110). The first guide member (120) may be disposed on an inner surface of the first cover member (110). The first guide member (120) may be disposed between a curved portion (112) and a side plate (111) on the inner surface of the first cover member (110). The first guide member (120) may be fixed to the inner surface of the first cover member (110) with an adhesive. The first guide member (120) may have a ring shape including an opening.

[0070] The first guide member (120) may include a first guide groove (121). The first guide groove (121) may be formed on one surface of the first guide member (120). The first guide groove (121) may include a plurality of first guide grooves (121) that are spaced apart from each other. The first guide groove (121) may be formed by being recessed into the inner circumferential surface (124) of the first guide member (120). The first guide groove (121) may include a first surface (122) that forms an incline with the inner circumferential surface (124) of the first guide member (120), and a second surface (123) that is connected to the first surface (122) and parallel to the inner circumferential surface (124). The first guide groove (121) may include two side surfaces that are connected to the first surface (122) and the second surface (123) and connected to the inner circumferential surface (124).

[0071]

[0072] The fixed assembly (200) may include a housing (210). The housing (210) may be plate-shaped. The housing (210) may be ring-shaped including an opening. The housing (210) may be positioned under the substrate (250). The housing (210) may be positioned under the second guide member (220). The housing (210) may be positioned under the first cover member (110). The housing (210) may be positioned under the moving assembly (300). The housing (210) may be shielded. Through this, the magnetic flux from the magnet (330) may be concentrated in the direction of the coil (230), and magnetic flux leakage may be prevented.

[0073] One surface of the housing (210) may include a plurality of first protrusions (211) spaced apart from each other. The plurality of first protrusions (211) may be formed spaced apart from each other along the circumferential direction. The plurality of first protrusions (211) may be arranged closer to the opening than the outer surface of the housing (210). The plurality of first protrusions (211) may be formed spaced apart at equal intervals on the upper surface of the housing (210). A first hole (403) of the blade portion (400) may be inserted into each of the plurality of first protrusions (211). The first hole (403) of the blade portion (400) may be formed larger than the plurality of first protrusions (211).

[0074] One side of the housing (210) may include a protrusion (212) that protrudes in an area connected to the opening. A first protrusion (211) of the housing (210) may be formed on the protrusion (212). An outer surface of the protrusion (212) may face an inner peripheral surface of the substrate (250). The diameter of the protrusion (212) may be the same as the diameter of the opening of the substrate (250). The protrusion (212) may support the blade portion (400) coupled to the first protrusion (211) to rotate in a flat state.

[0075] The housing (210) may include a first extension portion (213) extending in one direction and a second extension portion (214) extending vertically from the first extension portion (213). The first extension portion (213) may extend in one direction from an edge of the housing (210). The first extension portion (213) may extend radially from an edge of the housing (210). The first extension portion (213) may extend outward from an area where the second guide member (220) is arranged. The second extension portion (214) may extend in the optical axis direction from the first extension portion (213).

[0076]

[0077] The fixed assembly (200) may include a substrate (250). The substrate (250) may be disposed on a housing (210). The substrate (250) may be disposed between the housing (210) and the coil (230). The substrate (250) may include wing portions (251) disposed between the coils that are spaced apart from each other. The wing portions (251) may extend radially from an opening of the substrate (250). The substrate (250) may include a mounting portion (252) between the wing portions (251). One surface of the mounting portion (252) may correspond in shape to an edge of the coil (230). One surface of the mounting portion (252) may be disposed to face the edge of the coil (230).

[0078] Pattern coils may be arranged along the circumferential direction on the wing portion (251). The pattern coils arranged on the wing portion (251) may be connected to coils (230) arranged on the mounting portion (252). When a plurality of coils (230) are arranged on a plurality of mounting portions (252) that are spaced apart from each other, the plurality of coils (230) may be connected to each other by combining with the pattern coils arranged on the wing portion (251).

[0079]

[0080] The substrate (250) may include a third extension portion (253) extending in one direction and a fourth extension portion (254) extending vertically from the third extension portion (253). The third extension portion (253) may extend from an opening of the substrate (250). The fourth extension portion (254) may extend in one direction from an edge of the wing portion (251). The fourth extension portion (254) may extend radially from the edge of the wing portion (251). The third extension portion (253) may extend outward from an area where the second guide member (220) is disposed on the substrate (250). The fourth extension portion (254) may extend in the optical axis direction from the third extension portion (253).

[0081] The third extension portion (253) of the substrate (250) may be disposed on the first extension portion (213) of the housing (210). The third extension portion (253) of the substrate (250) may overlap the first extension portion (213) of the housing (210) in the optical axis direction. The fourth extension portion (254) of the substrate (250) may be disposed on the second extension portion (214) of the housing (210). The fourth extension portion (254) of the substrate (250) may overlap the second extension portion (214) of the housing (210) in the optical axis direction in the vertical direction.

[0082] The substrate (250) can be connected to any one of a plurality of coils (230). The substrate (250) can be a flexible printed circuit board (FPCB). The substrate (250) can supply electricity to the coils (230) and the sensor (240) through a power supply device external to the aperture device (1000).

[0083] The fixed assembly (200) may include a first driving unit (230). The first driving unit (230) may be a coil (230). The coil (230) may include a plurality of coils (230) that are spaced apart from each other. The coil (230) may have a ring shape. The coil (230) may be an FP coil. The coil (230) may be disposed on the housing (210). The plurality of coils (230) that are spaced apart from each other may be connected to each other by wires. The plurality of coils (230) that are spaced apart from each other may be disposed on the mounting portions (252) of the substrate (250), respectively. The plurality of coils (230) that are spaced apart from each other may be disposed between wing portions (251) that are spaced apart from each other.

[0084]

[0085] The fixed assembly (200) may include a sensor (240) disposed on a substrate (250). The sensor (240) may be disposed on the substrate (132). The sensor (240) may be disposed on a fourth extension (254) of the substrate (250). The sensor (240) may be electrically connected to the substrate (132). The sensor (240) may detect a magnet (330). The sensor (240) may be a Hall sensor. The sensor (240) may be an MR sensor. The sensor (240) may detect a magnetic force of the magnet (330).

[0086] The sensor (240) may be positioned corresponding to the magnet (330). The sensor (240) may overlap the magnet (330) in a direction perpendicular to the optical axis. The position of the magnet (330) detected by the sensor (240) may be fed back in real time to control the blade unit (400). That is, the blade unit (400) may be feedback-controlled in real time by the sensor (240).

[0087] The distance (X) between one side of the sensor (240) and one side of the magnet (330) in the direction perpendicular to the optical axis can satisfy a range of about 0.5 mm to about 1 mm. If the distance (X) between one side of the sensor (240) and one side of the magnet (330) in the direction perpendicular to the optical axis is less than 0.5 mm, the magnetic flux is sensed too strongly, so that the linearity of the sensor's sensing is not achieved, making it difficult to detect the position of the magnet (330). If the distance (X) between one side of the sensor (240) and one side of the magnet (330) in the direction perpendicular to the optical axis is greater than 1 mm, the magnetic flux is sensed too weakly, so that the sensor (240) has difficulty detecting the position of the magnet (330).

[0088] A pattern coil may be arranged in the third extension portion (253) and the fourth extension portion (254) of the substrate (250). A coil wire may be arranged in the third extension portion (253) and the fourth extension portion (254) of the substrate (250). The pattern coil arranged in the third extension portion (253) and the fourth extension portion (254) of the substrate (250) may be connected to the pattern coil arranged in the wing portion (251). The sensor (240) may be coupled with the pattern coil arranged in the fourth extension portion (254) of the substrate (250) to receive electricity.

[0089]

[0090] The fixed assembly (200) may include a second guide member (220). The aperture device (1000) may include a second guide member (220) disposed on the first cover member (110). The second guide member (220) may be disposed on the fixed assembly (200). The second guide member (220) may be disposed on the housing (210).

[0091] The second guide member (220) may be arranged on the inner surface of the first cover member (110). The second guide member (220) may be arranged at the lower end of the first guide member (120). The second guide member (220) may be arranged spaced apart from the first guide member (120). The second guide member (220) may be coupled to the first guide member (120).

[0092] The upper surface of the second guide member (220) may be arranged to face the lower surface of the first guide member (120). The second guide member (220) may be fixed to the inner surface of the first cover member (110) with an adhesive. The second guide member (220) may be fixed to the housing (210) with an adhesive. The second guide member (220) may have a ring shape including an opening.

[0093] The second guide member (220) may include a second guide groove (221). The second guide groove (221) may be formed on one surface of the second guide member (220). The second guide groove (221) may include a plurality of second guide grooves (221) that are spaced apart from each other. The second guide groove (221) may be formed at a position facing the first guide groove (121). The second guide groove (221) may be formed as an inclined surface connecting the upper surface and the inner surface of the second guide member (220). The second guide groove (221) may include an inclined surface and two side surfaces connecting the upper surface and the inner surface.

[0094] A ball (500) may be placed in the first guide groove (121) and the second guide groove (221). The first guide groove (121) and the second guide groove (221) may face the third guide groove (322) of the magnet support member (320). The first guide groove (121) of the first guide member (120), the second guide groove (221) of the second guide member (220), and the third guide groove (322) of the magnet support member (320) may form a space in which the ball (500) is placed. The first guide groove (121), the second guide groove (221), and the third guide groove (322) may support the rotation of the ball (500).

[0095]

[0096] The moving assembly (300) may be ring-shaped. The moving assembly (300) may have a shape including an opening. The moving assembly (300) may include a third driving unit (330). The third driving unit (330) may be a magnet (330). The moving assembly (300) may include a second cover member (310), a magnet support member (320), and a magnet (330).

[0097] The second cover member (310) may be placed on the magnet support member (320). The second cover member (310) may have a ring shape including an opening. The second cover member (310) may be placed to cover a magnet (330) placed on the magnet support member (320). The magnet support member (320) may be shielded. Through this, the magnetic flux from the magnet (330) can be concentrated in the direction of the coil (230), and magnetic flux leakage can be prevented.

[0098] The magnet support member (320) may be a ring shape including an opening. The magnet support member (320) may include a support plate (323) connected to the opening. The support plate (323) may include a recessed portion (324) that is recessed on one surface connected to the opening. The support plate (323) may include a protrusion (325) on the other surface connected to the opening. The recessed portion (324) may be formed on the upper surface of the support plate (323), and the protrusion (325) may be formed on the lower surface of the support plate (323). The recessed portion (324) of the support plate (323) may reduce the thickness of the area adjacent to the opening of the aperture device (1000). The protrusion (325) of the support plate (323) can prevent tilting of the blade portion (400) by reducing the distance between it and the housing (210) of the fixed assembly (200) when combined with the blade portion (400).

[0099] The lower surface of the magnet support member (320) may include a plurality of second protrusions (326) spaced apart from each other. The plurality of second protrusions (326) may be formed on the protrusion (325) of the support plate (323). The plurality of second protrusions (326) may be formed spaced apart from each other in the circumferential direction. The plurality of second protrusions (326) may be formed spaced apart from each other at equal intervals on the lower surface of the magnet support member (320). The number of the plurality of second protrusions (326) may be formed according to the number of blade parts (400). The second hole (142) of the blade part (400) may be inserted into each of the plurality of second protrusions (326). The second hole (402) of the blade part (400) may be formed larger than the second protrusion (326) of the moving assembly (300).

[0100] The magnet support member (320) may include a magnet hole (321) to which a magnet (330) is coupled. The magnet hole (321) may include a plurality of magnet holes (321) spaced apart from each other along the circumferential direction. The plurality of magnet holes (321) may include four magnet holes (321). The magnet holes (321) may have a shape corresponding to the shape of the magnet (330).

[0101] The magnet (330) may be in an arc shape. The magnet (330) may be coupled to the magnet hole (321). The magnet (330) may include four magnets that are bipolarly magnetized. The magnet (330) may include a north pole and a south pole. The magnet (330) may be magnetized with two polarities along the circumferential direction. Since the magnet may be broken by an external impact or during the polar magnetization process when implemented as a single ring, the magnet (330) may be formed in an arc shape and may be arranged along the circumferential direction on the magnet support member (320).

[0102] A chamfered surface may be formed at the corner area of ​​the magnet (330). The corner area of ​​the magnet (330) may have a curvature. The magnet (330) may be placed in the magnet hole (321) and fixed with an adhesive. By forming a curvature at the corner area of ​​the magnet (330), a space in which an adhesive is placed may be formed between the magnet hole (321) and the magnet (330). The magnet (330) and the magnet support member (320) may be combined using an insert mold. An insert mold is a type of plastic injection molding process in which a component is placed in advance in an injection mold and then plastic is injected thereon to create an integrated product.

[0103] A third guide groove (322) may be formed on the outer surface of the magnet support member (320). A ball (500) may be placed in the third guide groove (322). The third guide groove (322) may face the first guide groove (161) of the first guide member (160) and the second guide groove (261) of the second guide member (260). The third guide groove (322), the first guide groove (161) of the first guide member (160), and the second guide groove (261) of the second guide member (260) may form a space in which the ball (500) is placed. The ball (500) may be placed in the space formed by the first to third guide grooves (161, 261, 322) to guide the rotation of the magnet support member (320).

[0104]

[0105] The aperture device (1000) may include a blade portion (400). The blade portion (400) may be a member that blocks light. The blade portion (400) may be a light-blocking member. The blade portion (400) may be placed on the fixed assembly (200). The blade portion (400) may be placed on the housing (210) of the fixed assembly (200). The blade portion (400) may be placed on the moving assembly (300). The blade portion (400) may be placed on the magnet support member (310). The blade portion (400) may move together with the moving assembly (300). That is, when the moving assembly (300) moves, the blade portion (400) may also move together.

[0106] The blade portion (400) may include a first hole (403) into which the first protrusion (211) of the fixed assembly (200) is inserted. The blade portion (400) may include a first hole (403) into which the first protrusion (211) of the housing (210) is inserted. The blade portion (400) may include a second hole (402) into which the second protrusion (326) of the moving assembly (300) is inserted. The blade portion (400) may include a second hole (402) into which the second protrusion (326) of the magnet support member (310) is inserted. The first hole (403) may be formed larger than the second hole (402). The first hole (403) may be formed in an oval shape, and the second hole (402) may be formed in a circular shape.

[0107] When the moving assembly (300) moves, the blade portion (400) can pivotally move with respect to the fixed assembly (200). The blade portion (400) can rotate and move linearly at the portion where it meets the fixed assembly (200). The blade portion (400) can move linearly at the portion where it meets the moving assembly (300).

[0108] The blade portion (400) may include a escape groove (405) on a surface connected to the inner circumferential surface of the blade portion (400). The escape groove (405) may be an area for avoiding the second protrusion (326) of the magnet support member (310). The radius of curvature of the escape groove (405) may be larger than the radius of curvature of the second protrusion (326) of the magnet support member (310). The blade portion (400) may prevent contact and collision with the second protrusion (326) through the escape groove (405), thereby increasing the rotational radius of the blade portion (400) and reducing the size of the minimum opening of the blade hole (401) formed by the blade portion (400).

[0109] As the overlapping area of ​​the plurality of blades increases, the distance between the escape groove (405) of one of the adjacently arranged blades and the second hole (402) of the remaining blades may become closer. As the overlapping area of ​​the plurality of blades increases, the distance between the escape groove (405) of one of the adjacently arranged blades and the second protrusion (326) that engages with the remaining blades may become closer.

[0110] For example, the first blade (410) and the sixth blade (460) may overlap, and as the overlapping area of ​​the plurality of blades increases, the distance between the escape groove (405) of the first blade (410) and the second hole (402) of the sixth blade (460) may become closer. As the overlapping area of ​​the plurality of blades increases, the distance between the escape groove (405) of the first blade (410) and the second protrusion (326) that engages the second hole (402) of the sixth blade (460) may become closer.

[0111] The aperture device (1000) may include a hole (401). The blade portion (400) may include a hole (401) formed by a plurality of blade portions (400). The hole (401) may have a size or shape that can be changed by the plurality of blade portions (400). Light may pass through the hole (401).

[0112] The blade portion (400) may include a plurality of blades. The blade portion (400) may include first to sixth blades (410, 420, 430, 440, 450, 460). The first to sixth blades (410, 420, 430, 440, 450, 460) may have the same shape. At least one area of ​​the plurality of blades may be arranged to overlap in the optical axis direction. The plurality of blades may form a hole (401) whose size changes according to the movement of the moving assembly (300). As the overlapping area of ​​the plurality of blades increases, the size of the hole (401) may decrease. As the overlapping area of ​​the plurality of blades decreases, the size of the hole (401) may increase. The hole (401) may be formed by the inner peripheral surface (404) of the plurality of blades.

[0113] The plurality of blades can be arranged separately in two layers. The first to sixth blades (410, 420, 430, 440, 450, 460) can be arranged separately in two layers. The first blade (410), the third blade (430), and the fifth blade (450) can be arranged on the same plane in one layer. The second blade (420), the fourth blade (440), and the sixth blade (460) can be arranged on the same plane in one layer. The plurality of blades can be arranged in two layers, and the first blade (410), the third blade (430), and the fifth blade (450) can be arranged on the upper layer of the two layers, and the second blade (420), the fourth blade (440), and the sixth blade (460) can be arranged on the lower layer.

[0114] The first blade (410), the third blade (430), and the fifth blade (450) may not overlap due to the rotation of the magnet support member (320). When the opening formed by the first blade (410), the third blade (430), and the fifth blade (450) is at a minimum, the first blade (410), the third blade (430), and the fifth blade (450) may not overlap in the optical axis direction.

[0115] The second blade (420), the fourth blade (440), and the sixth blade (460) may not overlap due to the rotation of the magnet support member (320). When the opening formed by the second blade (420), the fourth blade (440), and the sixth blade (460) is at a minimum, the second blade (420), the fourth blade (440), and the sixth blade (460) may not overlap in the optical axis direction.

[0116] The blade portion (400) may include an inner surface (404). The inner surface (404) may form a hole (401) through which light passes. The blade portion (400) may include an inner surface (404) forming the hole (401). The inner surface (404) may be an inner surface. The inner surface (404) may be an inner surface. The inner surface (404) of the blade portion (400) may include a plurality of circular arc regions and an interpolation region formed between each of the plurality of circular arc regions.

[0117] When current is applied to the coil of the aperture device (1000), the blade unit (400) can move. That is, when current is applied to the coil of the aperture device (1000) and the moving assembly (300) moves, the shape of the hole (401) formed by the blade unit (400) can be changed. In other words, the F number of the aperture device (1000) can be changed by applying current to the coil.

[0118]

[0119] Below, the configuration of the camera device according to the present embodiment is described with reference to the drawings.

[0120] Fig. 17 is a perspective view of a camera device according to the present embodiment.

[0121] The camera device (10) may include a lens module. The lens module may include at least one lens. The lens may be positioned corresponding to the image sensor (75). The lens module may include a lens and a lens barrel. The lens module may be coupled to a holder of the lens driving device (20). The lens module may be coupled to the holder by screws and / or adhesive. The lens module may be moved integrally with the holder.

[0122] The camera device (10) may include a filter (30). The filter (30) may block light of a specific frequency band from passing through the lens module from being incident on the image sensor (75). The filter (30) may be arranged parallel to the xy plane. The filter (30) may be arranged between the lens module and the image sensor (75). The filter (30) may be arranged on the sensor base (40). Alternatively, the filter (30) may be arranged on the base of the lens driving device (20). The filter (30) may include an infrared filter. The infrared filter may block light of an infrared region from being incident on the image sensor (75).

[0123] The camera device (10) may include a sensor base (40). The sensor base (40) may be disposed between the lens driving device (20) 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 (75).

[0124] The camera device (10) 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 (20) 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 (20). The printed circuit board (50) may be electrically connected to the lens driving device (20). An image sensor (75) may be disposed on the printed circuit board (50). Various circuits, elements, control units, etc. may be provided on the printed circuit board (50) to convert an image formed on the image sensor (75) into an electrical signal and transmit it to an external device.

[0125] The camera device (10) may include an image sensor (75). The image sensor (75) may be configured to form an image by incident light passing through a lens and a filter (30). The image sensor (75) may be mounted on a printed circuit board (50). The image sensor (75) may be electrically connected to the printed circuit board (50). For example, the image sensor (75) may be coupled to the printed circuit board (50) using surface mounting technology (SMT). As another example, the image sensor (75) may be coupled to the printed circuit board (50) using flip chip technology.

[0126] The image sensor (75) can be arranged so that its optical axis is aligned with that of the lens. That is, the optical axis of the image sensor (75) and the optical axis of the lens can be aligned. The image sensor (75) can convert light irradiated to the effective image area of ​​the image sensor (75) into an electrical signal. The image sensor (75) can be any one of a CCD (charge coupled device), a MOS (metal oxide semi-conductor), a CPD, and a CID.

[0127] The camera device (10) 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 (10). The motion sensor (70) may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0128] The camera device (10) 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 a coil of a lens driving device (20). The control unit (80) may individually control the direction, intensity, amplitude, etc. of the current supplied to the coil. The control unit (80) may control the lens driving device (20) to perform an autofocus function and / or a shake correction function. Furthermore, the control unit (80) may perform autofocus feedback control and / or shake correction feedback control for the lens driving device (20).

[0129] The camera device (10) 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.

[0130]

[0131] Below, the configuration of the optical device according to the present embodiment is described with reference to the drawings.

[0132] Fig. 18 is a perspective view of an optical device according to the present embodiment.

[0133] 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.

[0134] An optical device (1) may include a main body (2). The optical device (1) may include a camera device (10). The camera device (10) may be disposed on the main body (2). The camera device (10) 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 (10). The display may be disposed on a first surface of the main body (2). The camera device (10) 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 (10) may have a triple camera disposed in a vertical direction. Alternatively, the camera device (10) may have a triple camera disposed in a horizontal direction.

[0135] Those skilled in the art will appreciate that the present invention can be implemented in modified forms without departing from the essential characteristics of the above-described description. Therefore, the disclosed methods should be considered illustrative rather than restrictive. The scope of the present invention is set forth in the claims, not the foregoing description, and all differences within the scope equivalent thereto should be construed as being encompassed by the present invention.

Claims

1. A fixed assembly including a first driving unit; A moving assembly including a second drive unit; A blade portion coupled with the above fixed assembly and the above moving assembly; a ball disposed between the fixed assembly and the moving assembly; and Including a sensor arranged in the above fixed assembly, The above sensor is an aperture device that overlaps the second driving unit in a direction perpendicular to the optical axis.

2. In paragraph 1, The above fixed assembly includes a housing in which the blade portion is placed and a substrate placed on the housing, An aperture device, wherein the housing includes a first extension portion extending in one direction from an edge and a second extension portion extending in the direction of the optical axis from the first extension portion.

3. In paragraph 2, The above substrate includes a third extension portion extending in one direction from the opening and a fourth extension portion extending in the optical axis direction from the third extension portion, The above sensor is an aperture device arranged in the fourth extension portion of the above substrate.

4. In paragraph 3, The third extension portion of the above substrate is arranged on the first extension portion of the above housing, An aperture device in which the fourth extension portion of the above substrate is placed on the second extension portion of the above housing.

5. In paragraph 1, The above first driving unit includes a coil, The above second driving unit is an aperture device including a magnet.

6. In paragraph 1, The above first driving unit includes a plurality of coils spaced apart from each other, The above fixed assembly is an aperture device including a substrate electrically connecting the plurality of coils.

7. In paragraph 6, The above substrate includes a plurality of fixing portions corresponding to the respective edge shapes of the plurality of coils, The above substrate is an aperture device including a plurality of wing portions extending radially from the opening.

8. In paragraph 7, An aperture device in which each of the plurality of wing sections of the above substrate has a pattern coil arranged to electrically connect the plurality of coils.

9. In paragraph 1, The above fixed assembly includes a substrate on which the sensor is placed, Including a first cover member disposed on the fixed assembly and the moving assembly, An aperture device in which the first cover member is sunken in one direction into the side plate and includes a sunken portion through which the substrate passes.

10. In paragraph 9, An aperture device in which the first cover member is sunken in the side plate in a different direction and includes an escape portion facing the sensor.

Images