Aperture device, camera device, and optical device

Abstract

An aperture device according to an embodiment of the present invention comprises: a fixed part; a moving part disposed on the fixed part; a driving part for moving the moving part; first and second blade parts forming a blade hole the size of which changes with the movement of the moving part; and a spacer disposed between the first and second blade parts.

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 part; a moving part arranged on the fixed part; a driving part that moves the moving part; a first blade part and a second blade part that form a blade hole whose size changes according to the movement of the moving part; and a spacer arranged between the first blade part and the second blade part.

[0007] The first blade portion may include a plurality of blades that do not overlap each other in the optical axis direction, and the second blade portion may include a plurality of blades that do not overlap each other in the optical axis direction.

[0008] The first blade portion may be formed of two layers and include a plurality of blades that overlap in the optical axis direction, and the second blade portion may be formed of two layers and include a plurality of blades that overlap in the optical axis direction.

[0009] Each of the first blade part and the second blade part may include a first hole that engages with the first protrusion of the fixed part and a second hole that engages with the second protrusion of the moving part, and the spacer may include a third hole that engages with the first protrusion and a fourth hole that engages with the second protrusion.

[0010] The third hole of the spacer may include a plurality of third holes arranged closer to the outer surface than the opening and spaced apart from each other along the circumferential direction, and the fourth hole of the spacer may include a plurality of fourth holes arranged closer to the opening than the outer surface and spaced apart from each other along the circumferential direction.

[0011] The third hole may be formed in a circular shape, and the fourth hole may be formed in a long hole.

[0012] The spacer includes an opening that overlaps the blade hole in the optical axis direction, and the opening of the spacer may be smaller than the minimum size of the blade hole.

[0013] The above driving unit may include a magnet and a coil.

[0014] A camera device according to the present embodiment may include a printed circuit board; an image sensor disposed on the printed circuit board; a lens disposed on the image sensor; and the aperture device disposed on the lens.

[0015] 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.

[0016] Through this embodiment, the camera function of a smartphone can be used without performance limitations even in a dark environment.

[0017] Additionally, the overlapping area between multiple blades can be minimized to reduce friction and thickness in the optical axis direction.

[0018] Additionally, the opening in the spacer allows Fno to accurately implement a small inner circle as a true circle.

[0019] In addition, a more detailed blade hole can be implemented by arranging the shape and number of blades placed on the first layer and the blades placed on the other layers differently based on the spacer.

[0020] Fig. 1 is a perspective view of the aperture device according to the first embodiment with the cover omitted.

[0021] Fig. 2 is an exploded perspective view of the aperture device according to the first embodiment with the cover omitted.

[0022] Figure 3 is an exploded perspective view of Figure 2 from a different angle.

[0023] Fig. 4 is a perspective view of the first blade portion, the second blade portion, and the spacer of the aperture device according to the first embodiment.

[0024] Figure 5 is a perspective view of Figure 4 from a different angle.

[0025] Fig. 6 is a drawing for explaining the blade hole of the aperture device according to the first embodiment.

[0026] Fig. 7 is a perspective view of the aperture device according to the second embodiment with the cover omitted.

[0027] Fig. 8 is an exploded perspective view of the aperture device according to the second embodiment with the cover omitted.

[0028] Figure 9 is an exploded perspective view of Figure 7 from a different angle.

[0029] Fig. 10 is a perspective view of the first blade portion, the second blade portion, and the spacer of the aperture device according to the second embodiment.

[0030] Figure 11 is a perspective view of Figure 10 from a different angle.

[0031] Fig. 12(a) illustrates the maximum opening state of the blade hole in the aperture device, Fig. 12(b) illustrates the minimum opening state of the blade hole in the aperture device, and Fig. 12(c) illustrates various shapes of the blade hole according to the present embodiment.

[0032] Figure 13 illustrates the bokeh effect implemented through various shapes of the blade hole of Figure 12(c).

[0033] Fig. 14 is an exploded perspective view of a camera device according to the present embodiment.

[0034] Fig. 15 is a perspective view of an optical device according to the present embodiment.

[0035] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0036] 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.

[0037] 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.

[0038] Additionally, the terms used in this embodiment are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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'.

[0045] 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.

[0046]

[0047] Hereinafter, the configuration of the aperture device according to the first and second embodiments will be described with reference to the drawings. In the description of each component of the aperture device according to the second embodiment, any description that overlaps with the description of each component of the aperture device according to the first embodiment will be combined with the description of the first embodiment.

[0048] FIG. 1 is a perspective view of an aperture device according to the first embodiment with the cover omitted, FIG. 2 is an exploded perspective view of an aperture device according to the first embodiment with the cover omitted, FIG. 3 is an exploded perspective view of FIG. 2 seen from a different angle, FIG. 4 is a perspective view of a first blade part, a second blade part and a spacer of an aperture device according to the first embodiment, FIG. 5 is a perspective view of FIG. 4 seen from a different angle, FIG. 6 is a drawing for explaining a blade hole of an aperture device according to the first embodiment, FIG. 7 is a perspective view of an aperture device according to the second embodiment with the cover omitted, FIG. 8 is an exploded perspective view of an aperture device according to the second embodiment with the cover omitted, FIG. 9 is an exploded perspective view of FIG. 7 seen from a different angle, and FIG. 10 is a perspective view of a first blade part, a second blade part and a spacer of an aperture device according to the second embodiment. It is a perspective view, and Fig. 11 is a perspective view of Fig. 10 from a different angle.

[0049] The aperture device (100) may be an aperture. The aperture device (100) can control the amount of light passing through the lens. The aperture device (100) can control the amount of light incident on the image sensor (75).

[0050] The aperture device (100) can be placed on the lens. The aperture device (100) can be placed on the lens. The aperture device (100) can be combined with the lens. The aperture device (100) can be fixed to the lens. The aperture device (100) can move integrally with the lens. The aperture device (100) can move together with the lens. The aperture device (100) can move in the optical axis direction together with the lens.

[0051] The aperture device (100) may include a fixed portion (110, 210). The fixed portion (110, 210) may be a stator. The fixed portion (110, 210) may be a portion that is relatively fixed with respect to the moving portion (120, 220). The fixed portion (110, 210) may movably support the moving portion (120, 220).

[0052] The aperture device (100) may include a base (110, 210). The fixed portion (110, 210) may include the base (110, 210). The base (110, 210) may be referred to as a housing. The base (110, 210) may be coupled to a cover. The base (110, 210) may accommodate a movable portion (120, 220). The base (110, 210) may movably support the movable portion (120, 220).

[0053] The base (110, 210) may include a first protrusion (111, 211). The first protrusion (111, 211) may protrude upward from the upper surface of the base (110, 210). The first protrusion (111, 211) may be combined with the first blade portion (130, 230), the second blade portion (140, 240), and the spacer (150, 250).

[0054] The aperture device (100) may include a cover (not shown). The fixed portion (110, 210) may include a cover. The cover may be placed on the base (110, 210). The cover may be placed on the base (110, 210). The cover may accommodate a moving portion (120, 220) therein. The cover may include a top plate and side plates extending from the top plate.

[0055] The aperture device (100) may include a moving part (120, 220). The moving part (120, 220) may be a rotor. The moving part (120, 220) may be a rotating body. The moving part (120, 220) may be a movable part. The moving part (120, 220) may be a mover. The moving part (120, 220) may be a mover. The moving part (120, 220) may be a carrier.

[0056] The moving part (120, 220) can be placed on the fixed part (110, 210). The moving part (120, 220) can be placed on the fixed part (110, 210). The moving part (120, 220) can be movably placed on the fixed part (110, 210). The moving part (120, 220) can be rotatably placed on the fixed part (110, 210). The moving part (120, 220) can be placed on the base (110, 210). The moving part (120, 220) can be movably placed on the base (110, 210). The moving part (120, 220) can be placed within the base (110, 210). The moving part (120, 220) can be placed within the cover. The moving part (120, 220) can rotate within the base (110, 210). The moving part (120, 220) can rotate within the cover. The moving part (120, 220) can move the first blade part (130, 230) and the second blade part (140, 240). The moving part (120, 220) can move together with the first blade part (130, 230) and the second blade part (140, 240).

[0057] The moving part (120, 220) may include a second protrusion (122, 221). The second protrusion (122, 221) may protrude upward from the body of the moving part (120, 220). The second protrusion (122, 221) may be formed on the upper surface of the body of the moving part (120, 220). The second protrusion (122, 221) may be coupled with the first blade part (130, 230), the second blade part (140, 240), and the spacer (150, 250). Through this, when the moving part (120, 220) moves, the first blade part (130, 230), the second blade part (140, 240), and the spacer (150, 250) may also move together.

[0058] The moving part (120) may include an escape part (121). The escape part (121) may be formed by being recessed into the outer surface of the body of the moving part (120). The escape part (121) may be an area for escaping the first protrusion (111) of the base (110) when the moving part (120) moves.

[0059] When the moving part (120, 220) moves, the first blade part (130, 230) and the second blade part (140, 240) can pivotally move with respect to the fixed part (110, 210). The first blade part (130, 230) and the second blade part (140, 240) can rotate and move linearly at the part where they meet the fixed part (110, 210). The first blade part (130, 230) and the second blade part (140, 240) can move linearly at the part where they meet the moving part (120, 220).

[0060] The aperture device (100) may include a driving unit. The driving unit may move a moving unit (120, 220). The driving unit may move a first blade unit (130, 230) and a second blade unit (140, 240). The driving unit may move the moving unit (120, 220) through electromagnetic interaction. The driving unit may include a magnet and a coil.

[0061] The aperture device (100) may include a magnet. The driving unit may include a magnet. The magnet may be disposed on the moving unit (120, 220). The magnet may be disposed on the moving unit (120, 220). The magnet may be disposed on the opposite side of the moving unit (120, 220) where the first blade unit (130, 230) and the second blade unit (140, 240) are disposed. The magnet may be ring-shaped. The magnet may have a shape including an opening. The magnet may have N and S poles alternately disposed along a circumferential direction. The magnet may be coupled to the moving unit (120, 220). The magnet may be fixed to the moving unit (120, 220). The magnet may be bonded to the moving unit (120, 220) with an adhesive.

[0062] The magnet is movable. The magnet can move through interaction with the coil. The magnet can move as an integral part of the moving part (120, 220). The magnet can move together with the moving part (120, 220). The magnet can be placed on the lower surface of the moving part (120, 220).

[0063] The aperture device (100) may include a substrate. The substrate may be disposed on a base (110, 210). The substrate may be disposed on the base (110, 210). The substrate may be disposed between the base (110, 210) and the moving part (120, 220). A coil may be disposed on the substrate. The coil may be formed on the substrate. For example, the coil may be formed as a pattern coil on the substrate.

[0064] The substrate may be electrically connected to the substrate of the lens driving device (20). Through this, the substrate may receive power from the printed circuit board (50). Although not shown in the drawing, the substrate of the aperture device (100) and the substrate of the lens driving device (20) may be directly connected. Alternatively, a separate conductive member may be provided to connect the substrate of the aperture device (100) and the substrate of the lens driving device (20). Alternatively, the substrate of the aperture device (100) may be directly connected to the printed circuit board (50) without being connected to the substrate of the lens driving device (20).

[0065] The aperture device (100) may include a coil. The driving unit may include the coil. The coil may be disposed on the fixing unit (110, 210). The coil may be disposed on the substrate. The coil may be coupled to the substrate. The coil may be soldered to the substrate. The coil may be electrically connected to the substrate. The coil may be formed integrally with the substrate. The coil may be formed as a pattern coil on the substrate. The coil may be disposed on the base (110, 210). The coil may be disposed on the base (110, 210). The coil may be disposed within the cover.

[0066] The coil can be positioned corresponding to the magnet. The coil can overlap the magnet. The coil can overlap the magnet in the optical axis direction. The coil can face the magnet. The coil can face the magnet. The coil can interact with the magnet. The coil can electromagnetically interact with the magnet. When current is applied to the coil, the magnet can move due to the interaction between the electromagnetic field of the coil and the electromagnetic field of the magnet. The coil can move the magnet. The coil can remain relatively fixed when the magnet moves.

[0067] Alternatively, the coil may be placed on the moving part (120, 220) and the magnet may be placed on the fixed part (110, 210). The coil may move together with the moving part (120, 220) and the magnet may be fixed.

[0068] The aperture device (100) may include a sensor. The driving unit may include the sensor. The sensor may be disposed on a substrate. The sensor may be electrically connected to the substrate. The sensor may detect a magnet. The sensor may be a Hall sensor. The sensor may detect the magnetic force of the magnet. The sensor may be disposed at a position corresponding to the magnet. The sensor may overlap the magnet in the optical axis direction. Control of the first blade unit (130, 230) and the second blade unit (140, 240) may be fed back in real time through the position of the magnet detected by the sensor. That is, the first blade unit (130, 230) and the second blade unit (140, 240) may be feedback-controlled in real time by the sensor.

[0069]

[0070] The aperture device (100) may include a first blade portion (130, 230) and a second blade portion (140, 240). The first blade portion (130, 230) and the second blade portion (140, 240) may be light-blocking members. The first blade portion (130, 230) and the second blade portion (140, 240) may be light-blocking members. The first blade portion (130, 230) and the second blade portion (140, 240) may be arranged on a fixing portion (110, 210). The first blade portion (130, 230) and the second blade portion (140, 240) may be arranged on a base (110, 210). The first blade part (130, 230) and the second blade part (140, 240) can be placed inside the cover. The first blade part (130, 230) and the second blade part (140, 240) can be placed on the moving part (120, 220). The first blade part (130, 230) and the second blade part (140, 240) can move together with the moving part (120, 220). That is, when the moving part (120, 220) moves, the first blade part (130, 230) and the second blade part (140, 240) can also move together.

[0071] A spacer (150, 250) may be placed between the first blade portion (130, 230) and the second blade portion (140, 240). The spacer (150, 250) may be formed in a circular shape including an opening (151, 251) that overlaps the blade hole and the optical axis direction. The spacer (150, 250) may include a plurality of third holes (152, 252) that are placed closer to the outer surface than the openings (151, 251) and spaced apart from each other along the circumferential direction. The third holes (152, 252) may be coupled with the first protrusion (111, 211) of the fixing portion (110, 210). The spacer (150, 250) may include a plurality of fourth holes (153, 253) arranged closer to the opening (151, 251) than the outer surface and spaced apart from each other along the circumferential direction. The fourth holes (153, 253) may be coupled with the second protrusion (122, 221) of the moving part (120, 220). The third holes (152, 252) may be formed in a circular shape. The fourth holes (153, 253) may be formed as long holes extending along the circumferential direction.

[0072] The thickness of the spacer (150, 250) in the optical axis direction may be smaller than the thickness of the first blade part (130, 230) and the second blade part (140, 240) in the optical axis direction. The thickness of the spacer (150, 250) in the optical axis direction may be larger than the thickness of the first blade part (130, 230) and the second blade part (140, 240) in the optical axis direction. The spacer (150, 250) and the first blade part (130, 230) and the second blade part (140, 240) may be made of a lightweight material with low reflectivity, such as carbon fiber (Carbon Feather).

[0073] The spacer (150, 250) is arranged between the first blade part (130, 230) and the second blade part (140, 240) to minimize overlap, friction, and interference between the blades. In addition, through the opening of the spacer (150, 250), the section where Fno is small can accurately implement an inner circle, and the section where Fno is large can be implemented with blades. In addition, the blade part arranged on one surface of the spacer (150, 250) and the blade part arranged on the other surface can have different shapes, so that the rotation angle of the blade part can be different, and a multi-step of a more detailed aperture device can be implemented. In addition, the contact area between the blades can be minimized through the support structure of the fixed part and the movable part, thereby reducing friction between the blades.

[0074] The first blade portion (130, 230) and the second blade portion (140, 240) may include a first hole (131, 231) into which the first protrusion (111, 211) of the fixed portion (110, 210) is inserted. The first hole (131, 231) may be formed in a shape corresponding to the first protrusion (111, 211). The first blade portion (130, 230) and the second blade portion (140, 240) may include a second hole (132, 232) into which the second protrusion (122, 221) of the moving portion (120, 220) is inserted. The second hole (132, 232) may be formed larger than the second protrusion (122, 221). The second hole (132, 232) can be formed as a long hole.

[0075] When the moving part (120, 220) moves, the first blade part (130, 230) and the second blade part (140, 240) can pivotally move with respect to the fixed part (110, 210). The first blade part (130, 230) and the second blade part (140, 240) can rotate and move linearly at the part where they meet the fixed part (110, 210). The first blade part (130, 230) and the second blade part (140, 240) can move linearly at the part where they meet the moving part (120, 220).

[0076] The aperture device (100) may include blade holes. The first blade portion (130, 230) and the second blade portion (140, 240) may include blade holes formed by a plurality of first blade portions (130, 230) and second blade portions (140, 240). Referring to FIG. 6, the blade holes may be changed in size or shape by the plurality of first blade portions (130, 230) and second blade portions (140, 240). Light may pass through the blade holes.

[0077] The first blade portion (130, 230) may include an inner surface (133, 233). The second blade portion (140, 240) may include an inner surface (143, 243). The inner surface may form a blade hole through which light passes. The first blade portion (130, 230) and the second blade portion (140, 240) may include an inner surface forming a blade hole. The inner surface may be an inner side. The inner surface may be an inner surface. The inner surface of the first blade portion (130, 230) and the second blade portion (140, 240) may include a plurality of circular arc regions and an interpolation region formed between the plurality of circular arc regions.

[0078] In this embodiment, when current is applied to the coil of the aperture device (100), the first blade portion (130, 230) and the second blade portion (140, 240) can move. That is, by applying current to the coil of the aperture device (100), the shape of the blade hole formed by the first blade portion (130, 230) and the second blade portion (140, 240) can be changed. In other words, by applying current to the coil, the F number of the aperture device (100) can be changed.

[0079]

[0080] Below, the shape and arrangement of the first blade part (130) and the second blade part (140) according to the first embodiment will be described.

[0081] The first blade unit (130) and the second blade unit (140) may include a plurality of blades. Each of the first blade unit (130) and the second blade unit (140) may include four blades. The first blade unit (130) may include four blades (130a to 130d) arranged on one surface of the spacer (150). The four blades (130a to 130d) of the first blade unit (130) may be arranged so as not to overlap in the optical axis direction. The second blade unit (140) may include four blades (140a to 140d) arranged on the other surface of the spacer (150). The four blades (140a to 140d) of the second blade unit (140) may be arranged so as not to overlap in the optical axis direction.

[0082] The four blades (130a to 130d) of the first blade unit (130) rotate by the operation of the moving unit (120) and can at least partially contact blades arranged adjacently. The outer surfaces of the first blade unit (130) and the second blade unit (140) may include a first region (135, 145) that contacts the first protrusion (111). The outer surface of the first blade unit (130) may include a second region (134, 144) that contacts the second protrusion (122). The first region (135, 145) and the second region (134, 144) may serve to guide the positions of the first blade unit (130) and the second blade unit (140) during rotation.

[0083]

[0084] Below, the shape and arrangement of the first blade part (230) and the second blade part (240) according to the second embodiment will be described.

[0085] The first blade unit (230) and the second blade unit (240) may include a plurality of blades. Each of the first blade unit (230) and the second blade unit (240) may include four blades. The first blade unit (230) may include four first to fourth blades (230a to 230d) arranged on one surface of the spacer (250). The four blades (230a to 230d) of the first blade unit (230) may be arranged to overlap in the optical axis direction. The second blade unit (240) may include four fifth to eighth blades (240a to 240d) arranged on one surface of the spacer (250). The four blades (240a to 240d) of the second blade unit (240) may be arranged to overlap in the optical axis direction.

[0086] The first blade section (230) may be arranged in two layers. The first blade (230a) and the second blade (230c) may be arranged in one layer, and the third blade (230b) and the fourth blade (230d) may be arranged in one layer. The blades arranged in one layer may not overlap or contact each other in the direction of the optical axis. The blades arranged in one layer may be arranged symmetrically with respect to the optical axis.

[0087] The second blade section (240) may be arranged in two layers. The fifth blade (240a) and the sixth blade (240c) may be arranged in one layer, and the seventh blade (240b) and the eighth blade (240d) may be arranged in one layer. The blades arranged in one layer may not overlap or contact each other in the direction of the optical axis. The blades arranged in one layer may be arranged symmetrically with respect to the optical axis.

[0088]

[0089] Fig. 12(a) illustrates the maximum opening state of the blade hole in the aperture device, Fig. 12(b) illustrates the minimum opening state of the blade hole in the aperture device, Fig. 12(c) illustrates various shapes of the blade hole according to the present embodiment, and Fig. 13 illustrates the bokeh effect implemented through various shapes of the blade hole of Fig. 12(c).

[0090] According to the present embodiment, the shape of the inner surface of the blade portion can be modified to change the shape of the blade hole into various shapes. As shown in Fig. 12(a), when the blade hole is at its maximum opening, the shape of the blade hole is implemented as a circle, and as shown in Fig. 12(b), when the blade hole is at its minimum opening, the shape of the blade hole can be implemented into various shapes. Referring to Fig. 12(c), the various shapes of the blade hole can include a heart shape, a star shape, a butterfly shape, a water drop shape, an umbrella shape, a car shape, a fish shape, a flower shape, etc.

[0091] Referring to Figure 13, various blade hole shapes can be used to create a bokeh effect. Bokeh refers to the effect of blurring the background in a photograph. The bokeh effect can enhance the emotional impact of a photograph. By focusing out in an environment with various aperture modes and lighting, you can create a bokeh effect with various shapes arranged in the background. When taking a close-up shot of a subject, the background becomes out of focus, enhancing the bokeh effect.

[0092]

[0093] Below, the configuration of the camera device according to the present embodiment is described with reference to the drawings.

[0094] Fig. 14 is a perspective view of a camera device according to the present embodiment.

[0095] 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.

[0096] 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).

[0097] 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).

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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).

[0103] 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.

[0104]

[0105] Below, the configuration of the optical device according to the present embodiment is described with reference to the drawings.

[0106] Fig. 15 is a perspective view of an optical device according to the present embodiment.

[0107] 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.

[0108] 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.

[0109] 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. Fixed government; A moving part arranged on the above fixed part; A driving unit that moves the above moving unit; A first blade part and a second blade part forming a blade hole whose size changes according to the movement of the moving part; and An aperture device including a spacer disposed between the first blade portion and the second blade portion.

2. In paragraph 1, The above first blade portion includes a plurality of blades that do not overlap each other in the optical axis direction, The second blade section is an aperture device including a plurality of blades that do not overlap each other in the optical axis direction.

3. In paragraph 1, The above first blade portion is composed of two layers and includes a plurality of blades overlapping in the optical axis direction, The second blade section is an aperture device comprising a plurality of blades that are formed of two layers and overlap in the optical axis direction.

4. In paragraph 1, Each of the first blade part and the second blade part includes a first hole that engages with the first protrusion of the fixed part and a second hole that engages with the second protrusion of the moving part, An aperture device in which the spacer includes a third hole coupled with the first protrusion and a fourth hole coupled with the second protrusion.

5. In paragraph 4, The third hole of the spacer includes a plurality of third holes arranged adjacent to the outer surface of the opening and spaced apart from each other along the circumferential direction, An aperture device including a plurality of fourth holes arranged closer to the opening than the outer surface and spaced apart from each other along the circumferential direction, wherein the fourth hole of the spacer is disposed.

6. In paragraph 4, The above third hole is formed in a circular shape, The above fourth hole is an aperture device formed by a long hole.

7. In paragraph 1, The spacer includes an opening that overlaps the blade hole in the optical axis direction, The above opening of the above spacer is an aperture device in which the above blade hole is smaller than the minimum size.

8. In paragraph 1, The above driving unit is an aperture device including a magnet and a coil.

9. Printed circuit board; An image sensor disposed on the above printed circuit board; a lens disposed on the image sensor; and A camera device comprising an aperture device according to any one of claims 1 to 8 arranged on the lens.

10. Body; The camera device of claim 9 arranged in the above body; and An optical device comprising a display disposed on the main body and outputting at least one of images and videos captured by the camera device.

Images