Camera device and optical apparatus
The camera device addresses the limitation of shake correction angle in smartphone cameras by simultaneously driving the prism and image sensor, enhancing image stabilization through multiple driving units.
Patent Information
- Application Number
- PCT/KR2025/004699
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-05-31
- Filing Date
- 2025-04-07
- Publication Date
- 2025-12-04
AI Technical Summary
Existing smartphone camera systems face challenges in performing shake correction functions with a larger compensation angle when only prism driving is used, limiting the effectiveness of image stabilization.
A camera device that simultaneously performs prism driving and image sensor driving, utilizing multiple driving units to achieve a high compensation angle for shake correction, including first, second, and third driving units for image sensor movement and tilting units for prism movement.
Enhances shake correction capabilities by allowing for a higher compensation angle through simultaneous prism and image sensor movement, improving image stabilization in smartphone cameras.
Smart Images

Figure KR2025004699_04122025_PF_FP_ABST
Abstract
Description
Camera devices and optical instruments
[0001] The present embodiment relates to a camera device and an optical device.
[0002] Modern smartphones are equipped with cameras capable of taking high-resolution photos and videos.
[0003] In particular, research is currently underway to incorporate a zoom function into smartphone cameras, allowing for the capture of distant subjects. To achieve this, the camera must be long along the optical axis. Therefore, research is being conducted on a structure that minimizes the camera's protrusion from the smartphone by altering the optical path using a prism.
[0004] Meanwhile, recent smartphone cameras have been equipped with a shake correction function to prevent the focus from shaking due to the user's hand shaking. In the prism-type camera device mentioned above, a structure that performs the shake correction function by moving the prism is being studied.
[0005] However, there is a need to perform the shake correction function with a larger compensation angle than when performing the shake correction function by moving only the prism.
[0006] (Patent Document 1) KR 10-2020-0138694 A
[0007] The present embodiment provides a camera device capable of performing a shake correction function at a high compensation angle by simultaneously performing prism driving and image sensor driving, compared to a case where only prism driving is performed.
[0008] A camera device according to the present embodiment may include an image sensor; a prism disposed on an optical path of the image sensor; a first driving unit that moves the image sensor in the direction of an optical axis of the image sensor; a second driving unit that moves the image sensor in a first axis direction perpendicular to the optical axis; and a third driving unit that moves the image sensor in a second axis direction perpendicular to both the optical axis and the first axis.
[0009] The camera device may include a fourth driving unit that tilts the prism around a third axis parallel to the first axis; and a fifth driving unit that tilts the prism around a fourth axis parallel to the second axis.
[0010] The camera device includes a lens disposed in an optical path between the image sensor and the prism, and the image sensor can move relative to the lens by the first to third driving units.
[0011] The camera device may include a first carrier that moves integrally with the image sensor; and a second carrier disposed between the first carrier and the prism, wherein the first driving unit may include a first magnet disposed on the second carrier and a first coil that interacts with the first magnet, and the second driving unit may include a second magnet disposed on the second carrier and a second coil that interacts with the second magnet.
[0012] The second magnet may overlap the first magnet in the first axis direction.
[0013] The first magnet includes a first surface facing the first coil, the first surface of the first magnet includes a first region close to the prism and a second region close to the image sensor, and the first region and the second region of the first magnet may have different polarities.
[0014] The second magnet includes a first surface facing the second coil, and the first surface of the second magnet may have a single polarity.
[0015] The third driving unit may include a third-first magnet and a third-second magnet arranged opposite to each other on the first carrier, a third-first coil interacting with the third-first magnet, and a third-second coil interacting with the third-2 magnet.
[0016] The camera device includes a substrate electrically connected to the image sensor, and the substrate may include a first bending portion that is bent along the first axis as a bending axis, and a second bending portion that is bent along the second axis as a bending axis.
[0017] The camera device may include a base; a third carrier disposed between the base and the second carrier; a first ball disposed between the third carrier and the base; a second ball disposed between the second carrier and the third carrier; and a third ball disposed between the first carrier and the second carrier.
[0018] At least one of the third carrier and the base includes a first rail on which the first ball is arranged, at least one of the second carrier and the third carrier includes a second rail on which the second ball is arranged, and at least one of the first carrier and the second carrier includes a third rail on which the third ball is arranged, and the first rail may extend in the first axis direction, the second rail may extend in the optical axis direction, and the third rail may extend in the second axis direction.
[0019] The above camera device may include a first yoke arranged on the base so that the first magnet and the second magnet exert an attractive force.
[0020] The above camera device may include a second yoke arranged so that the magnet of the third driving unit and the second carrier act with attraction.
[0021] The above second driving unit and the above fifth driving unit can be driven together.
[0022] 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 an image captured by the camera device.
[0023] Through this embodiment, image sensor driving is performed simultaneously with prism driving, so that a shake correction function can be performed at a high compensation angle compared to a case where only prism driving is performed.
[0024] Fig. 1 is a perspective view of a camera device according to the present embodiment.
[0025] Fig. 2 is a partial perspective view for explaining the operation of the image sensor of the camera device according to the present embodiment.
[0026] FIG. 3 is a partial perspective view of a bottom view for explaining the operation of an image sensor of a camera device according to the present embodiment.
[0027] Fig. 4 is a cross-sectional view of a camera device according to the present embodiment.
[0028] Fig. 5 is a perspective view of an image sensor actuator according to the present embodiment.
[0029] Figure 6 is a cross-sectional view taken along line AA of Figure 5.
[0030] Figure 7 is a cross-sectional view viewed from BB in Figure 5.
[0031] Fig. 8 is a cross-sectional view taken from CC of Fig. 5.
[0032] Fig. 9 is a perspective view of a part of the configuration of an image sensor actuator according to the present embodiment.
[0033] Fig. 10 is a perspective view of the z-axis carrier in Fig. 9.
[0034] Fig. 11 is a perspective view of the image sensor actuator in the state of Fig. 10 viewed from another direction.
[0035] Fig. 12 is a perspective view of an image sensor actuator according to the present embodiment with the fixing part omitted.
[0036] Fig. 13 is a perspective view of the image sensor actuator in the state of Fig. 12 viewed from another direction.
[0037] Fig. 14 is a perspective view of the image sensor actuator of Fig. 13 with the y-axis carrier omitted.
[0038] Fig. 15 is a perspective view showing another part of the image sensor actuator of Fig. 14.
[0039] Fig. 16 is a perspective view of the image sensor actuator of Fig. 15 with the z-axis carrier omitted.
[0040] Fig. 17 is a perspective view of a prism actuator according to the present embodiment.
[0041] Fig. 18 is a perspective view for explaining the operation of a prism actuator according to the present embodiment.
[0042] Fig. 19 is a cross-sectional view of a prism actuator according to the present embodiment.
[0043] Fig. 20 is a cross-sectional view of a prism actuator cut in a direction perpendicular to Fig. 19.
[0044] Fig. 21 is an exploded perspective view of a prism actuator according to the present embodiment.
[0045] Fig. 22 is an exploded perspective view of a prism actuator according to the present embodiment viewed from a different direction than Fig. 21.
[0046] Fig. 23 is a perspective view of an optical device according to the present embodiment.
[0047] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.
[0048] 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.
[0049] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.
[0050] Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.
[0051] 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.
[0052] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not intended to limit the nature, order, or sequence of the components.
[0053] 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.
[0054] 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.
[0055] The 'optical axis direction' used below is defined as the optical axis direction of the image sensor.
[0056] The 'auto focus (AF) function' used below is defined as a function that focuses on a subject by adjusting the distance between the lens and the image sensor according to the distance of the subject so that a clear image of the subject can be obtained on the image sensor. In addition, 'auto focus feedback (CLAF, closed-loop auto focus) control' is defined as a function that detects the distance between the image sensor and the lens and provides feedback control in real time to improve the accuracy of focus adjustment.
[0057] The 'optical image stabilization (OIS) function' used below is defined as a function that moves or tilts at least one of the prism, lens, and image sensor in a direction perpendicular to the optical axis to compensate for hand shake in order to prevent the image or video from shaking due to the user's hand shake.
[0058] Hereinafter, among the “AF drive unit (2300)”, the “OIS-x drive unit (2400)”, the “OIS-y drive unit (2500)”, the “yaw drive unit (1300)” and the “pitch drive unit (1400)”, one may be referred to as the “first drive unit”, another may be referred to as the “second drive unit”, another may be referred to as the “third drive unit”, another may be referred to as the “fourth drive unit” and another may be referred to as the “fifth drive unit”.
[0059] Hereinafter, one of the "y-axis carrier (2220)", the "z-axis carrier (2230)", and the "x-axis carrier (2240)" may be referred to as the "first carrier", the other as the "second carrier", and the other as the "third carrier". Alternatively, one may be referred to as the "first moving part", the other as the "second moving part", and the other as the "third moving part".
[0060] Hereinafter, one of the “x-axis guide ball (2610)”, the “z-axis guide ball (2620)”, and the “y-axis guide ball (2630)” may be referred to as the “first ball”, the other may be referred to as the “second ball”, and the other may be referred to as the “third ball”.
[0061] Hereinafter, one of the “x-axis”, “y-axis”, and “z-axis” may be referred to as the “first axis”, the other may be referred to as the “second axis”, and the other may be referred to as the “third axis”.
[0062]
[0063] Below, the configuration of the camera device according to the present embodiment is described with reference to the drawings.
[0064] Fig. 1 is a perspective view of a camera device according to the present embodiment. Fig. 2 is a partial perspective view for explaining the operation of an image sensor of a camera device according to the present embodiment. Fig. 3 is a partial perspective view of a bottom perspective view for explaining the operation of an image sensor of a camera device according to the present embodiment. Fig. 4 is a cross-sectional view of a camera device according to the present embodiment. Fig. 5 is a perspective view of an image sensor actuator according to the present embodiment. Fig. 6 is a cross-sectional view taken along line AA of Fig. 5. Fig. 7 is a cross-sectional view taken along line BB of Fig. 5. Fig. 8 is a cross-sectional view taken along line CC of Fig. 5. Fig. 9 is a perspective view of a part of an image sensor actuator according to the present embodiment. Fig. 10 is a perspective view of a state in which a z-axis carrier is seen through the lens of Fig. 9. Fig. 11 is a perspective view of the image sensor actuator of Fig. 10 seen from another direction. Fig. 12 is a perspective view of an image sensor actuator according to the present embodiment with a fixing part omitted. Fig. 13 is a perspective view of the image sensor actuator of Fig. 12 seen from another direction. Fig. 14 is a perspective view of the image sensor actuator of Fig. 13 with the y-axis carrier omitted. Fig. 15 is a perspective view illustrating another part of the image sensor actuator of Fig. 14. Fig. 16 is a perspective view of the image sensor actuator of Fig. 15 with the z-axis carrier omitted. Fig. 17 is a perspective view of a prism actuator according to the present embodiment. Fig. 18 is a perspective view for explaining the operation of a prism actuator according to the present embodiment. Fig. 19 is a cross-sectional view of a prism actuator according to the present embodiment. Fig. 20 is a cross-sectional view of the prism actuator taken in a direction perpendicular to Fig. 19. Fig. 21 is an exploded perspective view of a prism actuator according to the present embodiment. Fig. 22 is an exploded perspective view of a prism actuator according to the present embodiment viewed from a different direction from Fig. 21.
[0065] The camera device (10) may provide an autofocus function. The camera device (10) may provide a shake correction function. The camera device (10) may provide a shake correction function with an increased compensation angle. The camera device (10) may provide a fixed zoom function.
[0066] The camera device (10) may include a prism actuator (1000).
[0067] The prism actuator (1000) can perform an optical image stabilization (OIS) function. The prism actuator (1000) can perform a shake correction function. The prism actuator (1000) can move the prism (1210). The prism actuator (1000) can tilt the prism (1210). The prism actuator (1000) can tilt the prism (1210) around two axes. The prism actuator (1000) can tilt the prism (1210) around the x-axis and the y-axis. The x-axis and the y-axis can be perpendicular to each other. The prism actuator (1000) can be a prism driving device. The prism actuator (1000) may be a reflective member actuator. The prism actuator (1000) may be an OIS actuator. The prism actuator (1000) may be an OIS driving device.
[0068] The prism actuator (1000) may include a fixed portion (1100). The fixed portion (1100) may be maintained in a relatively fixed state when the moving portion (1200) moves.
[0069] The prism actuator (1000) may include a cover (1110). The fixing member (1100) may include the cover (1110). The cover (1110) may be disposed on the base (1120). The cover (1110) may be disposed on the base (1120). The cover (1110) may be formed of metal. The cover (1110) may be a shield can. The cover (1110) may include a top plate and a side plate. The cover (1110) may include a hole through which light incident on the prism (1210) passes.
[0070] The prism actuator (1000) may include a base (1120). The fixing member (1100) may include the base (1120). The base (1120) may be coupled to a cover (1110). The base (1120) may be coupled to a cover (1130).
[0071] The prism actuator (1000) may include a cover (1130). The fixing member (1100) may include the cover (1130). The cover (1130) may be disposed on the base (1120). The cover (1130) may be disposed on the base (1120). The cover (1130) may be disposed in front of the base (1120).
[0072] The prism actuator (1000) may include a substrate (1140). The fixing member (1100) may include the substrate (1140). The substrate (1140) may be disposed on the base (1120). The substrate (1140) may be disposed on a side of the base (1120). The substrate (1140) may be disposed on both sides of the base (1120). The substrate (1140) of the prism actuator (1000) may be electrically connected to the substrate (2130) of the image sensor actuator (2000). The substrate (1140) of the prism actuator (1000) may be coupled to the substrate (2130) of the image sensor actuator (2000) by a conductive member.
[0073] The prism actuator (1000) may include a lens (1150). The fixing member (1100) may include the lens (1150). The lens (1150) may be positioned in an optical path between the image sensor (2210) and the prism (1210). The lens (1150) may be positioned between the image sensor (2210) and the prism (1210). The lens (1150) may be positioned in front of the image sensor (2210). The lens (1150) may be positioned behind the prism (1210). The lens (1150) may be positioned on the optical axis of the image sensor (2210). Light passing through the lens (1150) may be focused onto the image sensor (2210).
[0074] The prism actuator (1000) may include a moving part (1200). The moving part (1200) may be positioned within the fixed part (1100). The moving part (1200) may be positioned on the fixed part (1100). The moving part (1200) may be positioned on the fixed part (1100). The moving part (1200) may move relative to the fixed part (1100).
[0075] The prism actuator (1000) may include a reflective member. The reflective member may include a prism (1210).
[0076] The prism actuator (1000) may include a prism (1210). The moving part (1200) may include the prism (1210). The prism (1210) may be placed on the optical path of the image sensor (2210). The prism (1210) may be placed on the optical path of the lens (1150). The prism (1210) may be placed at a position corresponding to the image sensor (2210). The prism (1210) may be placed at a position corresponding to the lens (1150). In the present embodiment, the prism (1210), the lens (1150), and the image sensor (2210) may be placed in that order. However, as a variation, the lens (1150), the prism (1210), and the image sensor (2210) may be placed in that order. The prism (1210) may reflect light. The prism (1210) can reflect incident light toward the image sensor (2210). The prism (1210) can be placed on the holder (1220). The prism (1210) can be fixed to the holder (1220). The prism (1210) can be coupled to the holder (1220). The prism (1210) can be adhesively bonded to the holder (1220). The prism (1210) can move integrally with the holder (1220).
[0077] The prism actuator (1000) may include a holder (1220). The moving part (1200) may include the holder (1220). The holder (1220) may be placed on the base (1120). The holder (1220) may be placed on the base (1120). The holder (1220) may be placed within the base (1120). The holder (1220) may be placed within the cover (1110). The holder (1220) may be movable within the base (1120). The holder (1220) may be tiltable within the base (1120).
[0078] The prism actuator (1000) may include a yaw drive unit (1300). The yaw drive unit (1300) may tilt the prism (1210) about the x-axis. The yaw drive unit (1300) may rotate the prism (1210) about the x-axis. The yaw drive unit (1300) may move the prism (1210) about the x-axis. The yaw drive unit (1300) may tilt the prism (1210) in the yaw direction. The yaw drive unit (1300) may rotate the prism (1210) in the yaw direction. The yaw drive unit (1300) may move the prism (1210) in the yaw direction.
[0079] The prism actuator (1000) may include a yaw magnet (1310). The yaw drive unit (1300) may include the yaw magnet (1310). The yaw magnet (1310) may be placed in a holder (1220). The yaw magnet (1310) may be fixed to the holder (1220). The yaw magnet (1310) may be coupled to the holder (1220). The yaw magnet (1310) may be bonded to the holder (1220) with an adhesive. The yaw magnet (1310) may move integrally with the holder (1220). The yaw magnet (1310) may be a magnet magnetized with four poles. The yaw magnet (1310) may have two N poles and two S poles.
[0080] The prism actuator (1000) may include a yaw coil (1320). The yaw drive unit (1300) may include the yaw coil (1320). The yaw coil (1320) may interact with a yaw magnet (1310). The yaw coil (1320) may electromagnetically interact with the yaw magnet (1310). The yaw coil (1320) may face the yaw magnet (1310). The yaw coil (1320) may be arranged to face the yaw magnet (1310). The yaw coil (1320) may be arranged at a position corresponding to the yaw magnet (1310). The yaw coil (1320) may be arranged on a substrate (1140). The yaw coil (1320) may be electrically connected to the substrate (1140). The yoke coil (1320) can be coupled to the substrate (1140). The yoke coil (1320) can be placed on the base (1120). The yoke coil (1320) can be placed on the cover (1110).
[0081] The prism actuator (1000) may include a yaw sensor (1330). The yaw drive unit (1300) may include the yaw sensor (1330). The yaw sensor (1330) may detect a yaw magnet (1310). The yaw sensor (1330) may detect a magnetic force of the yaw magnet (1310). The yaw sensor (1330) may detect the strength of the magnetic force of the yaw magnet (1310) to detect the position of the yaw magnet (1310). Through this, the yaw sensor (1330) may detect the position of the holder (1220). The yaw sensor (1330) may be disposed on the substrate (1140). The yaw sensor (1330) may be electrically connected to the substrate (1140). The yaw sensor (1330) may be coupled to the substrate (1140). This sensor (1330) may be placed on the base (1120). This sensor (1330) may be placed on the cover (1110).
[0082] The prism actuator (1000) may include a pitch drive unit (1400). The pitch drive unit (1400) may tilt the prism (1210) around the y-axis. The pitch drive unit (1400) may rotate the prism (1210) around the y-axis. The pitch drive unit (1400) may move the prism (1210) around the y-axis. The pitch drive unit (1400) may tilt the prism (1210) in the pitch direction. The pitch drive unit (1400) may rotate the prism (1210) in the pitch direction. The pitch drive unit (1400) may move the prism (1210) in the pitch direction.
[0083] The prism actuator (1000) may include a pitch magnet (1410). The pitch driving unit (1400) may include the pitch magnet (1410). The pitch magnet (1410) may be placed in a holder (1220). The pitch magnet (1410) may be fixed to the holder (1220). The pitch magnet (1410) may be coupled to the holder (1220). The pitch magnet (1410) may be adhesively bonded to the holder (1220). The pitch magnet (1410) may move integrally with the holder (1220). The pitch magnet (1410) may be a four-pole magnetized magnet. The pitch magnet (1410) may have two N poles and two S poles.
[0084] The prism actuator (1000) may include a pitch coil (1420). The pitch driving unit (1400) may include the pitch coil (1420). The pitch coil (1420) may interact with a pitch magnet (1410). The pitch coil (1420) may electromagnetically interact with the pitch magnet (1410). The pitch coil (1420) may face the pitch magnet (1410). The pitch coil (1420) may be arranged to face the pitch magnet (1410). The pitch coil (1420) may be arranged at a position corresponding to the pitch magnet (1410). The pitch coil (1420) may be arranged on a substrate (1140). The pitch coil (1420) may be electrically connected to the substrate (1140). The pitch coil (1420) can be coupled to the substrate (1140). The pitch coil (1420) can be placed on the base (1120). The yaw coil (1320) can be placed on the cover (1110).
[0085] The prism actuator (1000) may include a pitch sensor (1430). The pitch driving unit (1400) may include the pitch sensor (1430). The pitch sensor (1430) may detect a pitch magnet (1410). The pitch sensor (1430) may detect the magnetic force of the pitch magnet (1410). The pitch sensor (1430) may detect the strength of the magnetic force of the pitch magnet (1410) to detect the position of the pitch magnet (1410). Through this, the pitch sensor (1430) may detect the position of the holder (1220). The pitch sensor (1430) may be disposed on the substrate (1140). The pitch sensor (1430) may be electrically connected to the substrate (1140). The pitch sensor (1430) may be coupled to the substrate (1140). The pitch sensor (1430) may be placed on the base (1120). The pitch sensor (1430) may be placed on the cover (1110).
[0086] The prism actuator (1000) may include a moving plate (1500). The moving plate (1500) may be positioned between the holder (1220) and the cover (1130). The moving plate (1500) may guide the movement of the holder (1220). The moving plate (1500) may guide the tilt of the holder (1220).
[0087] The moving plate (1500) may include a first protrusion (1510). The first protrusion (1510) may be a front protrusion. The first protrusion (1510) may be positioned in a groove of the cover (1130). The first protrusion (1510) may include two protrusions. The two protrusions may be positioned in the y-axis direction. The moving plate (1500) may be tilted about the y-axis via the first protrusion (1510).
[0088] The moving plate (1500) may include a second protrusion (1520). The second protrusion (1520) may be a rear protrusion. The second protrusion (1520) may be positioned in a groove of the holder (1220). The second protrusion (1520) may include two protrusions. The two protrusions may be positioned in the x-axis direction. The moving plate (1500) may be tilted about the x-axis via the second protrusion (1520).
[0089] The prism actuator (1000) may include a manipulator. The manipulator may press the holder (1220) toward the cover (1130). Through this, the moving plate (1500) may be brought into close contact between the holder (1220) and the cover (1130). That is, even when the holder (1220) moves by the manipulator, contact between the holder (1220) and the moving plate (1500) and between the cover (1130) and the moving plate (1500) may be maintained.
[0090] The prism actuator (1000) may include a first manpower magnet (1610). The first manpower magnet (1610) may be disposed on the cover (1130). The first manpower magnet (1610) may be disposed at a position corresponding to a second manpower magnet (1620). The first manpower magnet (1610) may exert an attractive force on the second manpower magnet (1620). For example, the first manpower magnet (1610) may be formed such that the surface facing the second manpower magnet (1620) is an N pole. In this case, the second manpower magnet (1620) may be formed such that the surface facing the first manpower magnet (1610) is an S pole.
[0091] The prism actuator (1000) may include a second force magnet (1620). The second force magnet (1620) may be placed in a holder (1220).
[0092] The camera device (10) may include an image sensor actuator (2000). The image sensor actuator (2000) may move the image sensor (2210). The image sensor actuator (2000) may perform an autofocus function by moving the image sensor (2210). The image sensor actuator (2000) may perform an image shake correction function by moving the image sensor (2210). The image sensor actuator (2000) may be an autofocus actuator. The image sensor actuator (2000) may be an image shake correction actuator. The image sensor actuator (2000) may be an optical actuator.
[0093] The image sensor actuator (2000) may include a fixed part (2100). The fixed part (2100) may remain relatively fixed when the moving part (2200) moves.
[0094] The image sensor actuator (2000) may include a base (2110). The fixing member (2100) may include the base (2110). The base (2110) may be coupled to a cover (2120). The base (2110) may be coupled to a substrate (2130). The base (2110) may be disposed within the cover (2120). The base (2110) may be disposed within the substrate (2130).
[0095] The image sensor actuator (2000) may include a cover (2120). The fixing member (2100) may include the cover (2120). The cover (2120) may be disposed on the base (2110). The cover (2120) may be disposed on the base (2110). The cover (2120) may be fixed to the base (2110). The cover (2120) may include an upper plate and a side plate.
[0096] The image sensor actuator (2000) may include a substrate (2130). The fixing member (2100) may include the substrate (2130). The substrate (2130) may be placed on the base (2110). The substrate (2130) may be placed on the base (2110). The substrate (2130) may be fixed to the base (2110). The substrate (2130) may be placed on a side of the base (2110).
[0097] The image sensor actuator (2000) may include a moving part (2200). The moving part (2200) may move relative to the fixed part (2100). The moving part (2200) may be disposed on the fixed part (2100). The moving part (2200) may be disposed within the fixed part (2100). The moving part (2200) may be disposed on the fixed part (2100).
[0098] The image sensor actuator (2000) may include an image sensor (2210). The moving unit (2200) may include the image sensor (2210). The image sensor (2210) may receive light passing through the lens (1150). The image sensor (2210) may convert the received light into an electrical signal. The image sensor (2210) may be moved with respect to the lens (2140) by the AF driving unit (2300). The image sensor (2210) may be moved in the z-axis direction with respect to the lens (2140) by the AF driving unit (2300). The image sensor (2210) may be moved with respect to the lens (2140) by the OIS-x driving unit (2400). The image sensor (2210) can move in the x-axis direction with respect to the lens (2140) by the OIS-x driving unit (2400). The image sensor (2210) can move with respect to the lens (2140) by the OIS-y driving unit (2500). The image sensor (2210) can move with respect to the lens (2140) by the OIS-y driving unit (2500).
[0099] The image sensor actuator (2000) may include a y-axis carrier (2220). The moving unit (2200) may include the y-axis carrier (2220). The y-axis carrier (2220) may move integrally with the image sensor (2210). The y-axis carrier (2220) may move together with the image sensor (2210) in all directions. The y-axis carrier (2220) may move together with the image sensor (2210) in the x-axis direction. The y-axis carrier (2220) may move together with the image sensor (2210) in the y-axis direction. The y-axis carrier (2220) may move together with the image sensor (2210) in the z-axis direction.
[0100] The image sensor actuator (2000) may include a z-axis carrier (2230). The moving unit (2200) may include the z-axis carrier (2230). The z-axis carrier (2230) may be disposed between the y-axis carrier (2220) and the prism (1210). The z-axis carrier (2230) may move together with the image sensor (2210) in the z-axis direction. The z-axis carrier (2230) may move together with the image sensor (2210) in the x-axis direction. The z-axis carrier (2230) may not move in the y-axis direction.
[0101] The image sensor actuator (2000) may include an x-axis carrier (2240). The moving unit (2200) may include an x-axis carrier (2240). The x-axis carrier (2240) may be disposed between the base (2110) and the z-axis carrier (2230). The x-axis carrier (2240) may move together with the image sensor (2210) in the x-axis direction. The x-axis carrier (2240) may not move in the z-axis direction. The x-axis carrier (2240) may not move in the y-axis direction.
[0102] The image sensor actuator (2000) may include an AF driving unit (2300). The AF driving unit (2300) may move the image sensor (2210) in the optical axis direction of the image sensor (2210). The AF driving unit (2300) may move the image sensor (2210) in the z-axis direction. The AF driving unit (2300) may shift and move the image sensor (2210) in the z-axis direction. The AF driving unit (2300) may move the image sensor (2210) closer to the lens (1150). The AF driving unit (2300) may move the image sensor (2210) away from the lens (1150).
[0103] The image sensor actuator (2000) may include an AF magnet (2310). The AF driving unit (2300) may include an AF magnet (2310). The AF magnet (2310) may be disposed on a z-axis carrier (2230). The AF magnet (2310) may be disposed on the z-axis carrier (2230). The AF magnet (2310) may be fixed to the z-axis carrier (2230). The AF magnet (2310) may be coupled to the z-axis carrier (2230). The AF magnet (2310) may be bonded to the z-axis carrier (2230) with an adhesive. The AF magnet (2310) may move integrally with the z-axis carrier (2230).
[0104] The AF magnet (2310) may include a first surface facing the AF coil (2320). The first surface of the AF magnet (2310) may include a first region close to the prism (1210) and a second region close to the image sensor (2210). The first region and the second region of the AF magnet (2310) may have different polarities. The AF magnet (2310) may be a magnet magnetized with four poles. The AF magnet (2310) may have two N poles and two S poles.
[0105] The image sensor actuator (2000) may include an AF coil (2320). The AF driving unit (2300) may include the AF coil (2320). The AF coil (2320) may interact with an AF magnet (2310). The AF coil (2320) may electromagnetically interact with the AF magnet (2310). The AF coil (2320) may face the AF magnet (2310). The AF coil (2320) may be arranged to face the AF magnet (2310). The AF coil (2320) may be arranged at a position corresponding to the AF magnet (2310). The AF coil (2320) may be arranged on a substrate (2130). The AF coil (2320) may be electrically connected to the substrate (2130). The AF coil (2320) can be coupled to the substrate (2130). The AF coil (2320) can be placed on the base (2110). The AF coil (2320) can be placed on the cover (2120).
[0106] The image sensor actuator (2000) may include an AF sensor (2330). The AF driving unit (2300) may include an AF sensor (2330). The AF sensor (2330) may detect an AF magnet (2310). The AF sensor (2330) may detect the magnetic force of the AF magnet (2310). The AF sensor (2330) may detect the strength of the magnetic force of the AF magnet (2310) to detect the position of the AF magnet (2310). Through this, the AF sensor (2330) may detect the position of the z-axis carrier (2230). The AF sensor (2330) may be disposed on a substrate (2130). The AF sensor (2330) may be electrically connected to the substrate (2130). The AF sensor (2330) may be coupled to the substrate (2130). The AF sensor (2330) may be placed on the base (2110). The AF sensor (2330) may be placed on the cover (2120).
[0107] The image sensor actuator (2000) may include an OIS-x driving unit (2400). The OIS-x driving unit (2400) may move the image sensor (2210) in the x-axis direction perpendicular to the optical axis. The OIS-x driving unit (2400) may move the image sensor (2210) in the x-axis direction. The OIS-x driving unit (2400) may shift and move the image sensor (2210) in the x-axis direction. The OIS-x driving unit (2400) may move the image sensor (2210) to one side in the x-axis direction with respect to the lens (1150). The OIS-x driving unit (2400) may move the image sensor (2210) to the other side in the x-axis direction with respect to the lens (1150).
[0108] The OIS-x driving unit (2400) and the pitch driving unit (1400) can be driven together. The OIS-x driving unit (2400) and the pitch driving unit (1400) can be operated together. When the OIS-x driving unit (2400) and the pitch driving unit (1400) are driven together, the correction angle in the corresponding direction can increase.
[0109] The image sensor actuator (2000) may include an OIS-x magnet (2410). The OIS-x driving unit (2400) may include the OIS-x magnet (2410). The OIS-x magnet (2410) may be disposed on a z-axis carrier (2230). The OIS-x magnet (2410) may be disposed on the z-axis carrier (2230). The OIS-x magnet (2410) may be fixed to the z-axis carrier (2230). The OIS-x magnet (2410) may be coupled to the z-axis carrier (2230). The OIS-x magnet (2410) may be adhesively bonded to the z-axis carrier (2230). The OIS-x magnet (2410) may move integrally with the z-axis carrier (2230).
[0110] The OIS-x magnet (2410) may include a first surface facing the OIS-x coil (2420). The first surface of the OIS-x magnet (2410) may have a single polarity. The OIS-x magnet (2410) may be a two-pole magnetized magnet. The OIS-x magnet (2410) may have one N pole and one S pole. However, as a variation, the OIS-x magnet (2410) may be a four-pole magnetized magnet. However, in this case, the magnetization direction of the OIS-x magnet (2410) may be different from the magnetization direction of the AF magnet (2310).
[0111] The OIS-x magnet (2410) can overlap with the AF magnet (2310) in the x-axis direction. The OIS-x magnet (2410) can be positioned at a position corresponding to the AF magnet (2310) in the x-axis direction. The OIS-x magnet (2410) can be formed in a size corresponding to the AF magnet (2310) in the x-axis direction. However, the polarity arrangements of the OIS-x magnet (2410) and the AF magnet (2310) may be different.
[0112] The image sensor actuator (2000) may include an OIS-x coil (2420). The OIS-x driving unit (2400) may include the OIS-x coil (2420). The OIS-x coil (2420) may interact with an OIS-x magnet (2410). The OIS-x coil (2420) may electromagnetically interact with the OIS-x magnet (2410). The OIS-x coil (2420) may face the OIS-x magnet (2410). The OIS-x coil (2420) may be arranged to face the OIS-x magnet (2410). The OIS-x coil (2420) may be arranged at a position corresponding to the OIS-x magnet (2410). The OIS-x coil (2420) may be placed on the substrate (2130). The OIS-x coil (2420) may be electrically connected to the substrate (2130). The OIS-x coil (2420) may be coupled to the substrate (2130). The OIS-x coil (2420) may be placed on the base (2110). The OIS-x coil (2420) may be placed on the cover (2120).
[0113] The image sensor actuator (2000) may include an OIS-x sensor (2430). The OIS-x driving unit (2400) may include the OIS-x sensor (2430). The OIS-x sensor (2430) may detect an OIS-x magnet (2410). The OIS-x sensor (2430) may detect the magnetic force of the OIS-x magnet (2410). The OIS-x sensor (2430) may detect the strength of the magnetic force of the OIS-x magnet (2410) to detect the position of the OIS-x magnet (2410). Through this, the OIS-x sensor (2430) may detect the position of the z-axis carrier (2230). The OIS-x sensor (2430) may be disposed on a substrate (2130). The OIS-x sensor (2430) may be electrically connected to the substrate (2130). The OIS-x sensor (2430) may be coupled to the substrate (2130). The OIS-x sensor (2430) may be disposed on the base (2110). The OIS-x sensor (2430) may be disposed on the cover (2120).
[0114] The image sensor actuator (2000) may include an OIS-y actuator (2500). The OIS-y actuator (2500) may move the image sensor (2210) in the y-axis direction, which is perpendicular to both the optical axis and the x-axis. The OIS-y actuator (2500) may move the image sensor (2210) in the y-axis direction. The OIS-y actuator (2500) may shift and move the image sensor (2210) in the y-axis direction. The OIS-y actuator (2500) may move the image sensor (2210) to one side in the y-axis direction with respect to the lens (1150). The OIS-y actuator (2500) may move the image sensor (2210) to the other side in the y-axis direction with respect to the lens (1150).
[0115] The OIS-y drive unit (2500) and the yaw drive unit (1300) can be driven together. The OIS-y drive unit (2500) and the yaw drive unit (1300) can be operated together. When the OIS-y drive unit (2500) and the yaw drive unit (1300) are driven together, the correction angle in the corresponding direction can increase.
[0116] The image sensor actuator (2000) may include an OIS-y magnet (2511, 2512). The OIS-y driving unit (2500) may include an OIS-y magnet (2511, 2512). The OIS-y magnet (2511, 2512) may be disposed on a y-axis carrier (2220). The OIS-y magnet (2511, 2512) may be disposed on the y-axis carrier (2220). The OIS-y magnet (2511, 2512) may be fixed to the y-axis carrier (2220). The OIS-y magnet (2511, 2512) may be coupled to the y-axis carrier (2220). The OIS-y magnet (2511, 2512) can be adhesively bonded to the y-axis carrier (2220). The OIS-y magnet (2511, 2512) can move integrally with the y-axis carrier (2220).
[0117] The OIS-y magnet (2511, 2512) may include a plurality of magnets. The OIS-y magnet (2511, 2512) may include two magnets. The OIS-y magnet (2511, 2512) may include a first OIS-y magnet (2511) and a second OIS-y magnet (2512). The first OIS-y magnet (2511) and the second OIS-y magnet (2512) may be arranged opposite to each other on the y-axis carrier (2220).
[0118] The image sensor actuator (2000) may include an OIS-y coil (2521, 2522). The OIS-y driving unit (2500) may include an OIS-y coil (2521, 2522). The OIS-y coil (2521, 2522) may interact with an OIS-y magnet (2511, 2512). The OIS-y coil (2521, 2522) may electromagnetically interact with the OIS-y magnet (2511, 2512). The OIS-y coil (2521, 2522) may face the OIS-y magnet (2511, 2512). The OIS-y coils (2521, 2522) may be arranged to face the OIS-y magnets (2511, 2512). The OIS-y coils (2521, 2522) may be arranged at positions corresponding to the OIS-y magnets (2511, 2512). The OIS-y coils (2521, 2522) may be arranged on a substrate (2130). The OIS-y coils (2521, 2522) may be electrically connected to the substrate (2130). The OIS-y coils (2521, 2522) may be coupled to the substrate (2130). The OIS-y coils (2521, 2522) may be arranged on a base (2110). The OIS-y coil (2521, 2522) can be placed on the cover (2120).
[0119] The OIS-y coil (2521, 2522) may include multiple coils. The OIS-y coil (2521, 2522) may include two coils. The OIS-y coil (2521, 2522) may include a first OIS-y coil (2521) and a second OIS-y coil (2522).
[0120] The first OIS-y coil (2521) can interact with the first OIS-y magnet (2511). The first OIS-y coil (2521) can electromagnetically interact with the first OIS-y magnet (2511). The first OIS-y coil (2521) can face the first OIS-y magnet (2511). The first OIS-y coil (2521) can be arranged to face the first OIS-y magnet (2511). The first OIS-y coil (2521) can be arranged at a position corresponding to the first OIS-y magnet (2511).
[0121] The second OIS-y coil (2522) can interact with the second OIS-y magnet (2512). The second OIS-y coil (2522) can electromagnetically interact with the second OIS-y magnet (2512). The second OIS-y coil (2522) can face the second OIS-y magnet (2512). The second OIS-y coil (2522) can be arranged to face the second OIS-y magnet (2512). The second OIS-y coil (2522) can be arranged at a position corresponding to the second OIS-y magnet (2512).
[0122] The image sensor actuator (2000) may include an OIS-y sensor (2530). The OIS-y driving unit (2500) may include the OIS-y sensor (2530). The OIS-y sensor (2530) may detect the OIS-y magnet (2511, 2512). The OIS-y sensor (2530) may detect the magnetic force of the OIS-y magnet (2511, 2512). The OIS-y sensor (2530) may detect the position of the OIS-y magnet (2511, 2512) by detecting the strength of the magnetic force of the OIS-y magnet (2511, 2512). Through this, the OIS-y sensor (2530) may detect the position of the y-axis carrier (2220). The OIS-y sensor (2530) may be disposed on the substrate (2130). The OIS-y sensor (2530) may be electrically connected to the substrate (2130). The OIS-y sensor (2530) may be coupled to the substrate (2130). The OIS-y sensor (2530) may be disposed on the base (2110). The OIS-y sensor (2530) may be disposed on the cover (2120).
[0123] The image sensor actuator (2000) may include a guide ball. The guide ball may guide the movement of the moving part (2200) relative to the fixed part (2100).
[0124] The image sensor actuator (2000) may include an x-axis guide ball (2610). The x-axis guide ball (2610) may be positioned between the x-axis carrier (2240) and the base (2110). The x-axis guide ball (2610) may guide movement of the x-axis carrier (2240) relative to the base (2110). The x-axis guide ball (2610) may guide movement of the x-axis carrier (2240) relative to the base (2110) in the x-axis direction.
[0125] The x-axis guide ball (2610) may include a plurality of balls. The x-axis guide ball (2610) may include a plurality of balls spaced apart from each other.
[0126] The image sensor actuator (2000) may include an x-axis rail (2615). At least one of the x-axis carrier (2240) and the base (2110) may include an x-axis rail (2615) on which an x-axis guide ball (2610) is arranged. The x-axis rail (2615) may extend in the x-axis direction. The x-axis rail (2615) may be arranged in the x-axis direction. An x-axis guide ball (2610) may be arranged on the x-axis rail (2615). The x-axis guide ball (2610) may move in the x-axis direction on the x-axis rail (2615).
[0127] The image sensor actuator (2000) may include a z-axis guide ball (2620). The z-axis guide ball (2620) may be positioned between the z-axis carrier (2230) and the x-axis carrier (2240). The z-axis guide ball (2620) may guide movement of the z-axis carrier (2230) relative to the x-axis carrier (2240). The z-axis guide ball (2620) may guide movement of the z-axis carrier (2230) relative to the x-axis carrier (2240) in the z-axis direction.
[0128] The z-axis guide ball (2620) may include a plurality of balls. The z-axis guide ball (2620) may include a plurality of balls spaced apart from each other.
[0129] The image sensor actuator (2000) may include a z-axis rail (2625). At least one of the z-axis carrier (2230) and the x-axis carrier (2240) may include a z-axis rail (2625) on which a z-axis guide ball (2620) is arranged. The z-axis rail (2625) may extend in the z-axis direction. The z-axis rail (2625) may be arranged in the z-axis direction. A z-axis guide ball (2620) may be arranged on the z-axis rail (2625). The z-axis guide ball (2620) may move in the z-axis direction on the z-axis rail (2625).
[0130] The image sensor actuator (2000) may include a y-axis guide ball (2630). The y-axis guide ball (2630) may be positioned between the y-axis carrier (2220) and the z-axis carrier (2230). The y-axis guide ball (2630) may guide movement of the y-axis carrier (2220) relative to the z-axis carrier (2230). The y-axis guide ball (2630) may guide movement of the y-axis carrier (2220) relative to the z-axis carrier (2230) in the y-axis direction.
[0131] The y-axis guide ball (2630) may include multiple balls. The y-axis guide ball (2630) may include multiple balls arranged in the y-axis direction. The y-axis guide ball (2630) may overlap with the second yoke (2820) in the y-axis direction.
[0132] The image sensor actuator (2000) may include a y-axis rail (2635). At least one of the y-axis carrier (2220) and the z-axis carrier (2230) may include a y-axis rail (2635) on which a y-axis guide ball (2630) is arranged. The y-axis rail (2635) may extend in the y-axis direction. The y-axis rail (2635) may be arranged in the y-axis direction. The y-axis guide ball (2630) may be arranged on the y-axis rail (2635). The y-axis guide ball (2630) may move in the y-axis direction on the y-axis rail (2635).
[0133] The image sensor actuator (2000) may include a substrate (2700). The substrate (2700) may be electrically connected to the image sensor (2210).
[0134] The image sensor actuator (2000) may include a fixed substrate (2710). An image sensor (2210) may be placed on the fixed substrate (2710). The fixed substrate (2710) may be coupled to a y-axis carrier (2220).
[0135] The image sensor actuator (2000) may include a support substrate (2720). The support substrate (2720) may support movement of the image sensor (2210). The support substrate (2720) may be flexible. The support substrate (2720) may include a flexible printed circuit board (FPCB). The support substrate (2720) may be bendable. The support substrate (2720) may be flexible. The support substrate (2720) may be foldable. The support substrate (2720) may guide movement of the image sensor (2210) in the z-axis direction. The support substrate (2720) may guide movement of the image sensor (2210) in the x-axis direction. The support substrate (2720) may guide movement of the image sensor (2210) in the y-axis direction.
[0136] The support substrate (2720) may include a first bend portion (2721). The first bend portion (2721) may be bent with the x-axis as the bending axis. The first bend portion (2721) may be bent around the x-axis. The first bend portion (2721) may be bent with the x-axis as the center.
[0137] The support substrate (2720) may include a second bend portion (2722). The second bend portion (2722) may be bent with the y-axis as the bending axis. The second bend portion (2722) may be bent around the y-axis. The second bend portion (2722) may be bent with the y-axis as the center.
[0138] The image sensor actuator (2000) may include a ball pressure member. The ball pressure member may be provided to maintain a close contact state with the guide ball.
[0139] The image sensor actuator (2000) may include a first yoke (2810). The first yoke (2810) may be disposed on a base (2110). The first yoke (2810) may be disposed to act attractively with an AF magnet (2310) and an OIS-x magnet (2410) on the base (2110). The first yoke (2810) may be disposed to act attractively with the AF magnet (2310) on the base (2110). The first yoke (2810) may be disposed to act attractively with an OIS-x magnet (2410) on the base (2110). The x-axis guide ball (2610) and the z-axis guide ball (2620) can be brought into close contact between the z-axis carrier (2230) and the base (2110) by the attractive force between the first yoke (2810), the AF magnet (2310), and the OIS-x magnet (2410).
[0140] The image sensor actuator (2000) may include a second yoke (2820). The second yoke (2820) may be disposed on a z-axis carrier (2230). The second yoke (2820) may be disposed such that an attractive force acts on the magnet of the OIS-y driving unit (2500) with respect to the z-axis carrier (2230). The second yoke (2820) may include a hole. A y-axis guide ball (2630) may be disposed in the hole of the second yoke (2820). The y-axis guide ball (2630) may be brought into close contact between the z-axis carrier (2230) and the y-axis carrier (2220) by an attractive force between the second yoke (2820) and the OIS-y magnet (2511, 2512).
[0141] The camera device (10) may include a coupling member (3000). The coupling member (3000) may fix the prism actuator (1000) and the image sensor actuator (2000). The coupling member (3000) may couple the prism actuator (1000) and the image sensor actuator (2000). The coupling member (3000) may connect the prism actuator (1000) and the image sensor actuator (2000).
[0142]
[0143] Below, the operation of the camera device according to the present embodiment is described with reference to the drawings.
[0144] Fig. 2 is a partial perspective view for explaining the operation of the image sensor of the camera device according to the present embodiment.
[0145] When current is applied to the AF coil (2320) of the image sensor actuator (2000), the AF magnet (2310) can move in the z-axis direction due to the electromagnetic interaction between the AF coil (2320) and the AF magnet (2310) (see B of FIG. 2). At this time, the z-axis carrier (2230), the y-axis carrier (2220), and the image sensor (2210) can move together with the AF magnet (2310) (see A and C of FIG. 2). Through this, the distance between the fixed lens (1150) and the image sensor (2210) can be adjusted, so that the focus of the subject whose image is formed on the image sensor (2210) through the lens (1150) can be adjusted.
[0146] Furthermore, the AF sensor (2330) detects the magnetic field of the AF magnet (2310), and the position of the AF magnet (2310) and further the position of the image sensor (2210) are derived through the strength of the magnetic field of the AF magnet (2310) detected by the AF sensor (2330), so that the image sensor (2210) can be feedback controlled in real time to move to a more accurate position.
[0147] When current is applied to the OIS-y coils (2521, 2522) of the image sensor actuator (2000), the OIS-y magnets (2511, 2512) can move in the y-axis direction due to the electromagnetic interaction between the OIS-y coils (2521, 2522) and the OIS-y magnets (2511, 2512) (see D of FIG. 2). At this time, the y-axis carrier (2220) and the image sensor (2210) can move together with the OIS-y magnets (2511, 2512) (see C of FIG. 2). Through this, the image sensor (2210) moves in the y-axis direction perpendicular to the optical axis of the image sensor (2210), thereby compensating for the user's hand shake in that direction.
[0148] FIG. 3 is a partial perspective view of a bottom view for explaining the operation of an image sensor of a camera device according to the present embodiment.
[0149] When current is applied to the OIS-x coil (2420) of the image sensor actuator (2000), the OIS-x magnet (2410) can move in the y-axis direction due to the electromagnetic interaction between the OIS-x coil (2420) and the OIS-x magnet (2410) (see F of FIG. 3). At this time, the x-axis carrier (2240), the z-axis carrier (2230), the y-axis carrier (2220), and the image sensor (2210) can move together with the OIS-x magnet (2410) (see A, C of FIG. 2 and E of FIG. 3). Through this, the image sensor (2210) moves in the x-axis direction perpendicular to the optical axis of the image sensor (2210), thereby canceling out the user's hand shake in that direction.
[0150] Fig. 18 is a perspective view for explaining the operation of a prism actuator according to the present embodiment.
[0151] When current is applied to the yaw coil (1320) of the prism actuator (1000), the yaw magnet (1310) can rotate around the x-axis due to the electromagnetic interaction between the yaw coil (1320) and the yaw magnet (1310). That is, the yaw magnet (1310) can be tilted in the yaw direction (see yaw in FIG. 18). At this time, the holder (1220) and the prism (1210) can move together with the yaw magnet (1310) (see A in FIG. 18). Through this, the path of light reflected from the prism (1210) and incident on the image sensor (2210) through the lens (1150) can be changed in the yaw direction. Therefore, the user's hand shake in the corresponding direction can be canceled out.
[0152] When current is applied to the pitch coil (1420) of the prism actuator (1000), the pitch magnet (1410) can rotate around the y-axis due to the electromagnetic interaction between the pitch coil (1420) and the pitch magnet (1410). That is, it can tilt in the pitch direction (see pitch in FIG. 18). At this time, the holder (1220) and the prism (1210) can move together with the pitch magnet (1410) (see A in FIG. 18). Through this, the path of the light reflected from the prism (1210) and incident on the image sensor (2210) through the lens (1150) can be changed in the pitch direction. Therefore, the user's hand shake in the corresponding direction can be canceled out.
[0153] In this embodiment, the prism actuator (1000) and the image sensor actuator (2000) can be driven simultaneously.
[0154] In this embodiment, when the prism actuator (1000) and the image sensor actuator (2000) are driven simultaneously, the correction angle can be increased compared to when only one of them is driven. For example, when the prism actuator (1000) tilts the prism (1210) in the yaw direction and the image sensor actuator (2000) shifts the image sensor (2210) in the y-axis direction, the correction angle in the corresponding direction can be increased. In addition, when the prism actuator (1000) tilts the prism (1210) in the pitch direction and the image sensor actuator (2000) shifts the image sensor (2210) in the x-axis direction, the correction angle in the corresponding direction can be increased.
[0155] However, in this embodiment, only one of the prism actuator (1000) and the image sensor actuator (2000) may be selectively driven as needed.
[0156]
[0157] Below, the configuration of the optical device according to the present embodiment is described with reference to the drawings.
[0158] Fig. 22 is a perspective view of an optical device according to the present embodiment.
[0159] 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.
[0160] 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. As illustrated in FIG. 15, 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.
[0161]
[0162] Although the embodiments of the present invention have been described with reference to the attached drawings, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical concept or essential features thereof. Therefore, the embodiments described above should be understood to be illustrative in all respects and not restrictive.
Claims
1. Image sensor; A prism placed on the optical path of the image sensor; A first driving unit that moves the image sensor in the direction of the optical axis of the image sensor; A second driving unit that moves the image sensor in a first axis direction perpendicular to the optical axis; and A camera device including a third driving unit that moves the image sensor in a second axis direction perpendicular to both the optical axis and the first axis.
2. In paragraph 1, A fourth driving unit that tilts the prism about a third axis parallel to the first axis; and A camera device including a fifth driving unit that tilts the prism about a fourth axis parallel to the second axis.
3. In paragraph 1, including a lens disposed in the optical path between the image sensor and the prism, A camera device in which the image sensor moves relative to the lens by the first to third driving units.
4. In paragraph 1, A first carrier moving integrally with the image sensor; and Including a second carrier disposed between the first carrier and the prism, The first driving unit includes a first magnet arranged on the second carrier and a first coil interacting with the first magnet, A camera device wherein the second driving unit includes a second magnet disposed on the second carrier and a second coil interacting with the second magnet.
5. In paragraph 4, A camera device in which the second magnet overlaps the first magnet in the first axis direction.
6. In paragraph 4, The above first magnet includes a first surface facing the first coil, The first surface of the first magnet includes a first region close to the prism and a second region close to the image sensor, A camera device in which the first region and the second region of the first magnet have different polarities.
7. In paragraph 4, The above second magnet includes a first surface facing the second coil, A camera device wherein the first surface of the second magnet has a single polarity.
8. In paragraph 4, A camera device comprising a third driving unit, a third-first magnet and a third-second magnet arranged opposite to each other on the first carrier, a third-first coil interacting with the third-first magnet, and a third-second coil interacting with the third-2 magnet.
9. In paragraph 1, including a substrate electrically connected to the image sensor; A camera device in which the substrate includes a first bending portion that is bent along the first axis as a bending axis, and a second bending portion that is bent along the second axis as a bending axis.
10. In paragraph 4, base; A third carrier disposed between the base and the second carrier; A first ball placed between the third carrier and the base; A second ball disposed between the second carrier and the third carrier; and A camera device including a third ball disposed between the first carrier and the second carrier.
Citation Information
Patent Citations
Antenna apparatus for vehicle, and vehicle comprising the same
KR1020240030904A
Laundry treating apparatus
KR1020240085825A
Method for managing schedule and electronic device supporting the same
KR1020250108474A
Camera module
KR102653202B1
Camera focus and stabilization system
KR102655281B1