CN116794907A - Image capturing device - Google Patents

Abstract

The invention provides an image capturing device, which comprises an actuating module, a first lens module, a second lens module, an aperture module, a photosensitive component and an optical anti-shake actuator. The actuating module comprises a base body and a lens carrier, and the lens carrier can be arranged in the base body in a manner of being parallel to the optical axis in a displacement manner. The first lens module is arranged in the base and connected with the lens carrier. The second lens module is arranged outside the base body. The aperture module is arranged on the base body and sleeved outside the second lens module. The photosensitive assembly is arranged on one surface of the base body opposite to the second lens module. The optical anti-shake actuator can be connected to the photosensitive component in a manner of displacing relative to the actuating module perpendicular to the optical axis.

Description

Image capturing device

Technical Field

The present invention relates to an optical device, and more particularly, to an image capturing device.

Background

With the popularization of electronic devices, various functional requirements of users on the electronic devices are becoming more and more diversified, and in the case of an image capturing device generally configured on the electronic device, whether the user's requirement on the image capturing device has a function of adjusting various optical parameters (such as adjusting a focal length or an aperture) in addition to basic imaging quality is also becoming an important issue for the user to purchase.

Disclosure of Invention

In view of the above, the present invention provides an image capturing device including an actuating module, a first lens module, a second lens module, an aperture module, a photosensitive element and an optical anti-shake actuator. The actuating module comprises a base body and a lens carrier, and the lens carrier can be arranged in the base body in a manner of being parallel to the optical axis in a displacement manner. The first lens module is arranged in the base and connected with the lens carrier. The second lens module is arranged outside the base body. The aperture module is arranged on the base body and sleeved outside the second lens module. The photosensitive assembly is arranged on one surface of the base body opposite to the second lens module. The optical anti-shake actuator can be connected to the photosensitive component in a manner of displacing relative to the actuating module perpendicular to the optical axis.

Therefore, the first lens module and the second lens module are respectively arranged inside and outside the actuating module, the actuating module can provide a zooming function only by driving the first lens module to displace, the weight of the first lens module configuration and the load of the actuating module can be reduced, the driving performance and imaging optical quality of the actuating module are improved, furthermore, the aperture module is sleeved on the second lens module and is stably arranged outside the actuating module, the relative position between the aperture module and the second lens module can be kept, the iris effect is provided under the minimum space configuration, and the light-weight and miniaturized configuration is met. In addition, the whole image capturing device is also provided with an optical hand shake prevention actuator, so that the hand shake prevention function can be provided, and the optical quality is improved.

In an embodiment of the invention, the image capturing device further includes a patch disposed on a top surface of the base, and the second lens module abuts against the patch.

In an embodiment of the invention, the patch is made of a metal material.

In an embodiment of the invention, the patch has a plurality of meshes thereon.

In an embodiment of the invention, the first lens module includes a first lens barrel and a first lens, the first lens barrel is disposed in the lens carrier, and the first lens is disposed in the first lens barrel.

In an embodiment of the invention, the second lens module includes a second lens barrel and a second lens, the second lens barrel is disposed on the base, and the second lens is disposed in the second lens barrel.

In an embodiment of the invention, the second lens barrel includes a cylindrical body and a rim, the rim is connected to the rim of the cylindrical body, and the second lens barrel is attached to the base body by the rim.

In an embodiment of the invention, the aperture module abuts against a surface of the rim opposite to the base.

In an embodiment of the invention, the aperture module includes a base, a seat, and a plurality of blades, wherein one ends of the base and the seat respectively support against the annular edge, the seat is accommodated in the base, and each blade is displaceably disposed at the other end of the seat.

In an embodiment of the invention, the aperture module includes a plurality of blades and opposite first and second ends, each blade is movably disposed at the first end, the second lens module has an opposite light incident surface and a light emergent surface, the light incident surface is far away from the first lens module compared with the light emergent surface, the second end of the aperture module is sleeved on the second lens module, and each blade is close to the light incident surface.

In an embodiment of the invention, the image capturing device further includes a first housing and a second housing, wherein the first housing and the second housing are abutted to define a containing space together, the base is fixed on the first housing, and the photosensitive assembly is displaceably contained in the containing space.

In an embodiment of the invention, the first housing has a through hole, and a shape of the through hole corresponds to an appearance shape of the base, and the base is accommodated in the through hole.

The invention further provides an image capturing device, which comprises an actuating module, a first lens module, a second lens module, an aperture module, a photosensitive component and an optical anti-shake actuator. The actuating module comprises a base body and a lens carrier, and the lens carrier can be arranged in the base body in a manner of being parallel to the optical axis in a displacement manner. The first lens module is arranged in the base and connected with the lens carrier. The second lens module is arranged outside the base body. The aperture module is arranged on the base body and sleeved outside the second lens module. The photosensitive assembly is arranged on one surface of the base body opposite to the second lens module. The optical anti-shake actuator comprises a fixed part and a movable part, wherein the fixed part is connected with the actuating module, the movable part is connected with the photosensitive assembly, and the movable part can move relative to the fixed part perpendicular to the optical axis.

In an embodiment of the invention, the image capturing device further includes a first housing and a second housing, the first housing and the second housing are abutted to define a receiving space together, the base is fixed to the first housing, and the photosensitive assembly is displaceably received in the second housing.

In an embodiment of the invention, the first housing has a through hole, and a shape of the through hole corresponds to an appearance shape of the base, and the base is accommodated in the through hole.

In an embodiment of the invention, the image capturing device further includes a patch disposed on the first housing and covering the through hole and a top surface of the base.

In an embodiment of the invention, the second lens module abuts against the patch.

In an embodiment of the invention, the second lens module includes a rim, and the second lens module abuts against the patch with the rim.

In an embodiment of the invention, the aperture module abuts against a surface of the rim opposite to the patch.

In an embodiment of the invention, the patch is made of a metal material.

In an embodiment of the invention, the patch has a plurality of meshes thereon.

In an embodiment of the invention, the photosensitive assembly includes a substrate, a photosensitive element, a flexible flat cable and a bearing seat, the photosensitive element is electrically connected to the substrate, the flexible flat cable is electrically connected to the photosensitive element, the bearing seat is disposed on the substrate, one side of the bearing seat covers the photosensitive element, the other side of the bearing seat includes a limiting groove, and the movable member is accommodated in the limiting groove.

In an embodiment of the invention, the bearing seat further includes a plurality of limiting columns, each of which extends along a direction perpendicular to the optical axis, and the flexible flat cable is sleeved on each of the limiting columns.

In an embodiment of the invention, the image capturing device further includes a first housing, a second housing, a first sensing element and a second sensing element, wherein the first housing and the second housing are abutted to define a receiving space together, the base is fixed on the first housing, the photosensitive assembly is displaceably received in the second housing, the first housing has a plurality of grooves, each groove faces the second housing, the first sensing element is received in the groove, the second sensing element is disposed at a position of the substrate facing the first sensing element, and the first sensing element is capable of sensing displacement of the second sensing element.

Drawings

Fig. 1 is an external view of an embodiment of an image capturing device according to the present invention.

Fig. 2 is a schematic exploded view of an embodiment of an image capturing device according to the present invention.

Fig. 3 is a schematic exploded view of a three-dimensional structure of an image capturing device according to an embodiment of the invention.

Fig. 4 is a three-dimensional exploded view of an image capturing device according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view taken along line 5-5 in fig. 1.

Fig. 6 is a schematic partial cross-sectional view of an embodiment of an image capturing device according to the present invention.

Fig. 7 is a schematic exploded view of an embodiment of an image capturing device according to the present invention.

Fig. 8 is a schematic partial structure of an image capturing device according to an embodiment of the invention.

Fig. 9 is a schematic cross-sectional view taken along section line 9-9 in fig. 1.

Fig. 10 is a schematic diagram illustrating an arrangement of a first lens module and a second lens module of an image capturing device according to an embodiment of the invention.

Wherein, the reference numerals:

10 actuation Module

11, seat body

111 top surface

1111, wearing mouth

112 bottom surface

12 lens carrier

20 first lens module

21 first lens barrel

22. 22A, 22B, 22C first lens

30 second lens module

301 light incident surface

302 light-emitting surface

31 second lens barrel

311 cylindrical body

312 circumferential edge

32. 32A, 32B, 32C, 32D, second lens

40 aperture module

401 first end

402 second end

41 diaphragm driving module

411 base

412 drive element

42 blade module

421 bearing seat

422, rotating member

423 blade

43 outer cover

44 plaque

50 photosensitive assembly

51 substrate

52 photosensitive element

53 Flexible Flat Cable

531 grooving

532 pocket mouth

54 bearing seat

541 spacing groove

541A first limit groove

541B second limit groove

542 spacing column

55 optical filter

60-optical hand vibration preventing actuator

61 fixing piece

62 movable member

70 Patch

71 mesh of mesh

80 housing assembly

81 first housing

811 through hole

812 groove

82 second housing

90 sensing assembly

91 first sensing element

92 second sensing element

D1 first outer diameter

D2 second outer diameter

L optical axis

A object side

B image side

DA object side diameter

TTL light long

IMG imaging

Detailed Description

Referring to fig. 1, fig. 1 is an external view of an image capturing device according to an embodiment of the invention. The image capturing device is configured in an electronic device to capture an image, and the electronic device includes, but is not limited to, a smart phone, a tablet computer, a notebook computer, a display, a stand-alone camera, or an aerial camera.

Referring to fig. 1 to 5, fig. 2 is a schematic exploded view of a three-dimensional structure of an image capturing device according to an embodiment of the present invention; FIG. 3 is a schematic exploded view of an embodiment of an image capturing device according to the present invention; FIG. 4 is a three-dimensional exploded view of an embodiment of an image capturing device according to the present invention; fig. 5 is a schematic cross-sectional view taken along line 5-5 in fig. 1. The image capturing device includes an actuating module 10, a first lens module 20, a second lens module 30, an aperture module 40, a photosensitive element 50 and an optical anti-shake actuator 60. The first lens module 20 is disposed in the actuating module 10 to be driven by the actuating module 10 to displace along the optical axis L, the second lens module 30 is fixedly disposed outside the actuating module 10, and the aperture module 40 is sleeved outside the second lens module 30. The optical anti-shake actuator 60 can drive the photosensitive assembly 50 to move relative to the first lens module 20 and the second lens module 30 perpendicular to the optical axis L.

Referring to fig. 2 and 3, the actuating module 10 is configured to drive the first lens module 20 to displace parallel to the optical axis L to change the focal length of the image capturing device. The actuation module 10 may be, but is not limited to, a Voice Coil Motor (VCM), a Micro Electro-Mechanical Systems (MEMS), a Piezoelectric system (Piezo electric), or a memory metal (Shape Memory Alloy). The actuating module 10 provides the image capturing device with a better imaging position, and can capture clear images of the photographed object under the condition of different object distances.

Referring to fig. 3 and 4, the actuating module 10 includes a base 11 and a lens carrier 12, and the lens carrier 12 is disposed in the base 11 and capable of being displaced parallel to the optical axis L. In some embodiments, the base 11 is a hollow structure with a rectangular cube appearance and has a top surface 111, the top surface 111 is a planar structure for the second lens module 30 or the aperture module 40 to rest stably, and the top surface 111 further has a through hole 1111 penetrating and communicating with the inside for the first lens module 20 to be exposed from the through hole 1111, in these embodiments, the through hole 1111 is circular in shape.

In some embodiments in which the actuator module 10 is a voice coil motor, the lens carrier 12 is provided with a coil, and the inner side of the housing 11 is provided with a magnetic component, and the coil on the lens carrier 12 can interact with the magnetic component on the inner side of the housing 11 to cause the lens carrier 12 to linearly displace relative to the housing 11.

Referring to fig. 3 to 5, the first lens module 20 is an optical component capable of allowing light reflected by an object to enter from the outside of the image capturing device to the inside and improving the quality of the light. The first lens module 20 is disposed in the housing 11 and connected to the lens carrier 12, and the lens carrier 12 can drive the first lens module 20 to displace parallel to the optical axis L. In some embodiments, the first lens module 20 includes a first lens barrel 21 and at least one first lens 22, the first lens barrel 21 is disposed in the lens carrier 12, and the first lens 22 is disposed in the first lens barrel 21. In such embodiments, the lens carrier 12 has an inner surface, the shape of the inner surface of the lens carrier 12 corresponds to the appearance shape of the first lens barrel 21 of the first lens module 20, and the first lens barrel 21 can be cured and bonded to the inner surface of the lens carrier 12 by dispensing.

Referring to fig. 2 to 6, fig. 6 is a schematic partial cross-sectional view of an image capturing device according to an embodiment of the invention. The second lens module 30 is an optical component capable of allowing light reflected by an object to enter from the outside of the image capturing device to the inside and improving the quality of the light. The second lens module 30 is disposed outside the base 11. In some embodiments, the second lens module 30 includes a second lens barrel 31 and at least one second lens 32, the second lens module 30 is abutted against the top surface 111 of the base 11 by the second lens barrel 31, and the second lens 32 is disposed in the second lens barrel 31. In these embodiments, the second lens module 30 and the first lens module 20 are arranged on the optical axis L, and the second lens module 30 can be assembled on the top surface 111 of the base 11 through an AA (Active Alignment) process.

Referring to fig. 1 to 3, the aperture module 40 has an entrance aperture, and the optical axis L can pass through the center of the entrance aperture of the aperture module 40. In some embodiments, the aperture module 40 is an iris aperture module, i.e. the size of the light entrance aperture of the aperture module 40 can be changed to adjust the amount of light entering the image capturing device from the light entrance aperture through the aperture module 40, i.e. the aperture value of the image capturing device can be changed, so as to provide different depth-of-field imaging effects.

Referring to fig. 3 to 6, the aperture module 40 is sleeved outside the second lens module 30 and is disposed on the base 11, in some embodiments, the aperture module 40 is sleeved outside the second lens module 30 and is disposed on the base 11 through the second lens module 30, that is, the second lens module 30 abuts against the base 11, and the aperture module 40 abuts against the second lens module 30. Accordingly, the relative positions of the second lens module 30 and the aperture module 40 with respect to the base 11 are not changed, and the relative position of the aperture module 40 with respect to the second lens module 30 is not changed, thereby ensuring that the aperture module 40 can provide the function of an iris diaphragm.

Referring to fig. 2 to 3, in some embodiments in which the aperture module 40 is an iris module, the aperture module 40 integrally includes a first end 401 and a second end 402 opposite to each other, and the aperture module 40 includes a plurality of blades 423, each blade 423 is movably disposed at the first end 401, and the aperture module 40 is sleeved on the second lens module 30 by the second end 402. In these embodiments, one end of each blade 423 is disposed at the first end 401 of the aperture module 40, the other end of each blade 423 defines an entrance aperture together, the optical axis L can pass through the center of the entrance aperture, and the aperture module 40 can drive each blade 423 to displace to change the size of the entrance aperture.

Referring to fig. 5 and 7, fig. 7 is a schematic exploded view of a three-dimensional structure of an image capturing device according to an embodiment of the invention. The photosensitive assembly 50 is disposed on a surface of the base 11 of the actuating module 10 opposite to the second lens module 30. In these embodiments, the base 11 includes a bottom surface 112 opposite to the top surface 111, the photosensitive element 50 includes a substrate 51 and a photosensitive element 52, the photosensitive element 52 is electrically connected to the substrate 51, the photosensitive element 50 is disposed on the bottom surface 112 of the base 11, and the optical axis L passes through the photosensitive element 52. Therefore, the light outside the image capturing device can be condensed on the photosensitive element 52 after passing through the first lens module 20 and the second lens module 30, so that the photosensitive element 52 can sense to obtain an image.

In some embodiments, the substrate 51 may be a PCB (Printed Circuit Board ) so that the substrate 51 can maintain the flatness of the photosensitive element 52 after the photosensitive element 52 is mounted on the substrate 51, but the invention is not limited thereto. The substrate 51 may be any other component capable of connecting the photosensitive element 52, for example, the substrate 51 may be an FPC board (Flexible Printed Circuit, flexible circuit board), specifically, the substrate 51 implemented as an FPC board may be attached to a stiffener (for example, a stiffener made of metal), and the photosensitive element 52 is attached to the stiffener and electrically connected to the substrate 51, thereby maintaining the flatness of the photosensitive element 52 through the stiffener.

In some embodiments, the photosensitive element 52 may be, but is not limited to, a charge coupled device (Charge Coupled Device, CCD), a metal oxide semiconductor device (Complementary Metal-Oxide Semiconductor, CMOS), or a silicon photonics chip. That is, in the image capturing device of the present invention, the photosensitive element 52 refers to any optical component capable of performing photoelectric conversion after receiving the light reflected by the object. In one embodiment, the photosensitive element 52 may be attached to the substrate 51 by a COB (Chip On Board) process, or may be assembled to the substrate 51 by an FC (Flip Chip) Flip Chip technology.

Referring to fig. 5 and 7, the optical anti-shake actuator 60 is an anti-shake actuator for a photosensitive element Shift (Sensor Shift), and the optical anti-shake actuator 60 can sense the offset of the actuating module 10 and move the photosensitive element 52 to correct the offset of the actuating module 10. The optical anti-shake actuator 60 is connected to the photosensitive assembly 50 and can drive the photosensitive assembly 50 to displace relative to the actuating module 10 perpendicular to the optical axis L.

Referring to fig. 5 and 7, in some embodiments, the optical anti-shake actuator 60 includes a fixed member 61 and a movable member 62, the fixed member 61 is connected to the actuating module 10, the movable member 62 is connected to the photosensitive assembly 50, and the movable member 62 can be displaced perpendicular to the optical axis L relative to the fixed member 61. Therefore, the optical anti-shake actuator 60 can drive the photosensitive assembly 50 to displace relative to the actuating module 10 perpendicular to the optical axis L, so as to achieve the effect of compensating the offset of the actuating module 10.

Referring to fig. 7, in some embodiments, the fixed member 61 and the movable member 62 are arranged vertically along a direction parallel to the optical axis L, but the invention is not limited thereto. In other embodiments, the fixed member 61 and the movable member 62 may be arranged at intervals in a direction perpendicular to the optical axis L. In addition, the fixing member 61 and the movable member 62 may be connected by a flexible wire or a memory metal, so that the movable member 62 can be suspended in the accommodating space between the first housing 81 and the second housing 82 to ensure the mobility. Here, the driving force of the optical anti-shake actuator 60 may be achieved by a driving element provided around the fixing member 61 and/or the movable member 62, and the driving element may be, but not limited to, a shape memory alloy (Shape memory alloy, SMA) or an electromagnetic driving element. In one embodiment where the driving member is a shape memory alloy, the shape memory alloy will have a change in length or shape when a bias is applied to the shape memory alloy, thereby generating a driving force.

Therefore, the first lens module 20 and the second lens module 30 are respectively disposed inside and outside the actuating module 10, the actuating module 10 can provide a zooming function only by driving the first lens module 20 to displace, the weight of the first lens module 20 and the load of the actuating module 10 can be reduced, the driving performance and the imaging optical quality of the actuating module 10 are improved, furthermore, the aperture module 40 is sleeved on the second lens module 30 and is stably disposed outside the actuating module 10, so that the relative position with the second lens module 30 can be maintained, and the iris effect is provided under the minimum space configuration, thereby satisfying the light-weight and miniaturized configuration. In addition, the whole image capturing device is further provided with an optical hand shake preventing actuator 60, so that a hand shake preventing function can be provided, and the optical quality is improved.

Referring to fig. 2 to 4, in some embodiments, the second barrel 31 of the second lens module 30 includes a cylindrical body 311 and a rim 312, and the rim 312 is engaged with the rim of the cylindrical body 311 and extends along a plane perpendicular to the optical axis L. In these embodiments, the second lens module 30 is abutted against the top surface 111 of the base 11 of the actuating module 10 by the annular edge 312 of the second lens barrel 31, so as to increase the area of the second lens module 30 contacting the top surface 111 of the base 11 and improve the stability of the second lens module 30.

Referring to fig. 1 to 4, in an embodiment, the image capturing device further includes a patch 70, the patch 70 is disposed on a top surface 111 of the base 11 of the actuating module 10, the patch 70 is of a flat structure, and the second lens module 30 is abutted against the patch 70. The patch 70 is additionally provided to further ensure flatness of the contact position of the second lens module 30, thereby improving stability.

Referring to fig. 4, to ensure the flatness of the patch 70, the material of the patch 70 is selected. Specifically, the patch 70 preferably has enough strength and flatness to stably support the second lens module 30 and the aperture module 40, and enough strength ensures that the patch 70 maintains flatness after carrying the second lens module 30 and the aperture module 40. In some embodiments, patch 70 is made of a metallic material, such as, but not limited to, stainless steel. In some embodiments where the patch 70 is made of a metal material, the patch 70 has a plurality of meshes 71, and the meshes 71 on the patch 70 made of the metal material allow the patch 70 to be formed by stamping and absorb stress during the stamping process to maintain the flatness of the patch 70. It should be noted that the mesh 71 on the patch 70 is not limited to be regularly arranged or irregularly arranged.

Referring to fig. 2 to 5, in some embodiments of the image capturing device including the patch 70, the second lens module 30 is abutted against the patch 70 by the rim 312, thereby ensuring that the second lens module 30 can be disposed on a smooth plane. In this embodiment, one end of the aperture module 40 is abutted against a surface of the rim 312 opposite to the base 11.

Referring to fig. 5 and 6, in some embodiments, the second lens module 30 has a light incident surface 301 and a light emergent surface 302 opposite to each other. In some embodiments in which the second lens module 30 includes a plurality of second lenses 32, the light incident surface 301 and the light emergent surface 302 of the second lens module 30 are located closest to the respective second lenses 32 at two opposite ends of the second lens barrel 31. When the second lens module 30 is disposed on the base 11 of the actuating module 10, in a direction parallel to the optical axis L, the light-emitting surface 302 of the second lens module 30 is closer to the first lens module 20 than the light-entering surface 301.

Referring to fig. 4 to 6, the second lens module 30 abuts the patch 70 on the top surface 111 of the base 11 of the actuating module 10 with the rim 312 of the second lens barrel 31, and the second end 402 of the aperture module 40 abuts the rim 312 of the second lens barrel 31 of the second lens module 30.

Referring to fig. 5 and 6, in these embodiments, the aperture module 40 includes an aperture driving module 41 and a blade module 42, and the aperture driving module 41 is sleeved outside the blade module 42. The aperture driving module 41 includes a base 411 and a driving element 412, the base 411 is in a circular structure and has one end abutting against the base 11, the driving element 412 may be a circuit board including a coil, the driving element 412 is disposed on the base 411 along the outline of the base 411, and the coil of the driving element 412 passes through the base 411 toward the blade module 42.

Referring to fig. 5 and 6, the blade module 42 includes a supporting seat 421, a rotating member 422 and a plurality of blades 423, the supporting seat 421 is in a circular structure, the supporting seat 421 is disposed in the base 411 and sleeved outside the second lens module 30, that is, the supporting seat 421 is located between the base 411 and the second lens module 30, one end of the supporting seat 421 abuts against the annular edge 312 of the second lens barrel 31 of the second lens module 30, the rotating member 422 is in a circular structure and is rotatably disposed on the supporting seat 421, the rotating member 422 is provided with a corresponding member (such as metal or magnet) capable of being attracted by magnetic force, the driving element 412 controls the magnetic force of the coil to attract the corresponding member on the rotating member 422 to drive the rotating member 422 to rotate, and each blade 423 is rotatably disposed at one end of the rotating member 422 away from the annular edge 312. Therefore, the driving element 412 of the aperture driving module 41 drives the rotating piece 422 and the blades 423 thereon to rotate, thereby achieving the purpose of changing the size of the light incident hole.

Referring to fig. 6, in the embodiments, the rim 312 of the second lens barrel 31 of the second lens module 30 has a first outer diameter D1, the base 411 of the aperture module 40 has a second outer diameter D2, and the second outer diameter D2 of the base 411 is smaller than the first outer diameter D1 of the rim 312. In this way, when the base 411 of the aperture module 40 is disposed on the second barrel 31 of the second lens module 30, the base 411 of the aperture module 40 can be completely abutted against the rim 312 of the second barrel 31 of the second lens module 30, and the aperture module 40 can be stably disposed on the base 11 through the second lens module 30 on the basis that the second lens module 30 is stably disposed on the base 11.

Referring to fig. 4 to 6, in an embodiment, the aperture module 40 further includes an outer cover 43 and a decoration plate 44, the outer cover 43 is sleeved outside the base 411 and extends to the first end 401, the decoration plate 44 is an annular sheet body and is disposed on the seat 421 to cover a part of each blade 423, adjacent gaps between each component can be shielded by the outer cover 43 and the decoration plate 44, the probability of dust or foreign matter entering the aperture module 40 is reduced, and the flatness of the appearance of the aperture module 40 can be improved.

Referring to fig. 4 in conjunction with fig. 7 and 8, fig. 8 is a schematic partial structure of an image capturing device according to an embodiment of the invention. In some embodiments, the image capturing device further includes a housing assembly 80, the housing assembly 80 includes a first housing 81 and a second housing 82, the first housing 81 and the second housing 82 are abutted to define a receiving space together, the base 11 of the actuating module 10 is fixed to the first housing 81, and the photosensitive assembly 50 is displaceably received in the receiving space. Therefore, the actuating module 10 is stably disposed in the first housing 81, the optical anti-shake actuator 60 can drive the photosensitive assembly 50 to displace in the accommodating space, and the overall image capturing device is modularly disposed, so as to improve the applicability of the image capturing device disposed in various electronic devices.

In some embodiments of the image capturing device including the housing assembly 80, the first housing 81 has a through hole 811, the shape of the through hole 811 corresponds to the appearance shape of the housing 11, and the housing 11 of the actuating module 10 is accommodated in the through hole 811 and is stably limited. In these embodiments, the fixing member 61 of the optical anti-shake actuator 60 can be fixedly disposed on the bottom surface 112 of the base 11, so that the actuating module 10 and the fixing member 61 are located at a fixed stable position.

Referring to fig. 5 and 7, in some embodiments in which the image capturing device includes a housing assembly 80, the photosensitive assembly 50 further includes a flexible flat cable 53 and a carrier 54. The flexible flat cable 53 is electrically connected to the photosensitive element 52, the carrier 54 is disposed on the substrate 51, and the carrier 54 covers the photosensitive element 52 with one side and surrounds the periphery of the photosensitive element 52, where the photosensitive element 50 can be connected to the movable member 62 of the optical anti-shake actuator 60 through the carrier 54, and the movable member 62 drives the photosensitive element 50 to displace through the carrier 54, so that the movable member 62 drives the carrier 54 surrounding the periphery of the photosensitive element 52 to displace, thereby ensuring that the displacement of the photosensitive element 52 corresponds to the displacement of the movable member 62, and improving the anti-shake compensation capability.

Referring to fig. 7 and 8, in some embodiments in which the photosensitive element 50 includes the carrier 54, the other side of the carrier 54 includes a limiting groove 541, and the shape of the limiting groove 541 corresponds to the external shape of the movable member 62 of the optical anti-shake actuator 60. In these embodiments, the movable member 62 can be stably accommodated and fixed in the limiting groove 541 of the bearing seat 54, so as to increase the joint area between the movable member 62 and the bearing seat 54, and improve the certainty and stability of the displacement of the photosensitive element 50 driven by the optical anti-shake actuator 60.

Referring to fig. 5 in conjunction with fig. 7 and 8, in some embodiments of the photosensitive assembly 50 including the carrier 54, the number of the limiting slots 541 on the other side of the carrier 54 is two, and for clarity of illustration, the two limiting slots 541 on the carrier 54 are hereinafter referred to as a first limiting slot 541A and a second limiting slot 541B, respectively. As described above, the shape of the first limiting groove 541A of the bearing seat 54 corresponds to the external shape of the movable member 62 of the optical anti-shake actuator 60 for accommodating the movable member 62. The second limiting groove 541B is further recessed from the bottom of the first limiting groove 541A, that is, the second limiting groove 541B and the first limiting groove 541A are located at different height positions.

Referring to fig. 5, in these embodiments, the photosensitive assembly 50 of the image capturing device further includes a filter 55, the shape of the second limiting groove 541B corresponds to the appearance shape of the filter 55, and the filter 55 can be accommodated in the second limiting groove 541B to be disposed on the carrier 54. Here, when the photosensitive element 50 is connected to the movable member 62, the optical filter 55 is kept on the carrier 54 and closer to the photosensitive element 52 than the movable member 62, so as to ensure that the optical filter 55 is kept between the object side and the image side when the movable member 62 moves the photosensitive element 50.

Referring to fig. 7 and 8, in some embodiments, the flexible flat cable 53 surrounds the outer periphery of the carrier 54 in a form perpendicular to the substrate 51, and in this state, the length of the flexible flat cable 53 in the direction parallel to the optical axis L is greater than the height of the carrier 54 in the direction parallel to the optical axis L. In these embodiments, the part of the flexible flat cable 53 corresponds to the bearing seat 54, and one side of the flexible flat cable 53 is adjacent to the substrate 51, while the other side of the flexible flat cable 53 protrudes from the bearing seat 54. Here, a slit 531 is provided between both sides of the flexible flat cable 53, and the slit 531 is opened in a direction perpendicular to the optical axis L. Here, the portion of the flexible flat cable 53 corresponding to the carrier 54 is glued to the carrier 54 by a glue layer, and the slot 531 on the flexible flat cable 53 can allow the flexible flat cable 53 to have a moving capability perpendicular to the optical axis L, so as to ensure that the carrier 54 can be driven to move by the movable member 62 of the optical anti-shake actuator 60.

Referring to fig. 7 and 8, in some embodiments, the carrier 54 further includes a plurality of limiting posts 542, and the limiting posts 542 extend along a direction perpendicular to the optical axis L and are disposed on opposite outer surfaces of the carrier 54. In such embodiments, the side of the flexible flat cable 53 adjacent to the substrate 51 has a plurality of openings 532, and the flexible flat cable 53 is sleeved on each of the limiting posts 542 through each of the openings 532. Therefore, when the bonding layer between the flexible flat cable 53 and the carrier 54 is degraded, dropped or damaged, the limiting posts 542 can also provide a basic limiting effect of the flexible flat cable 53 without dropping off, thereby improving the stability of the overall structure configuration.

Referring to fig. 9, fig. 9 is a schematic cross-sectional view taken along the line 9-9 in fig. 1. In some embodiments, the image capturing device further includes a sensing device 90 for sensing vibration, so that the optical anti-shake actuator 60 compensates for anti-shake according to the sensing of the sensing device 90. In this embodiment, the sensing element 90 includes a first sensing element 91 and a second sensing element 92, where the first sensing element 91 is disposed on the first housing 81, and the second sensing element 92 is disposed on the substrate 51 at a position facing the first sensing element 91, so that the first sensing element 91 and the second sensing element 92 can sense relative displacement therebetween, and further provide a basis for performing displacement compensation on the optical anti-shake actuator 60.

In some embodiments, a surface of the first housing 81 facing the second housing 82 has a plurality of grooves 812, and the shape of the grooves 812 corresponds to the shape of the first sensing element 91. In this embodiment, the first sensing element 91 is accommodated in the recess 812, so that the first sensing element 91 can be exactly co-operated with the first housing 81 and the actuating module 10 thereon, and the hand shake offset can be accurately reflected.

In some embodiments, the combination of the first sensing element 91 and the second sensing element 92 may be, but is not limited to, a hall sensor and a magnet.

The lens carrier 12 of the actuating module 10 is not limited to be capable of being displaced only along the direction parallel to the optical axis L, and in some embodiments, the lens carrier 12 of the actuating module 10 is also capable of being displaced along a plane perpendicular to the optical axis L, so that the actuating module 10 can drive the first lens module 20 to be displaced along three dimensions perpendicular to each other through the lens carrier 12, thereby improving the reliability of focusing of the optical axis.

Referring to fig. 10 and table 1, fig. 10 is a schematic diagram illustrating the configuration of a first lens module 20 and a second lens module 30 according to an embodiment of the invention; table 1 shows optical parameters of the image capturing device according to the embodiment of fig. 10 applied to a front lens.

Table 1:

parameters (parameters)	Numerical value
		Photosensitive element size	1 inch
Lens assembly	7 pieces
		Aperture value (F.No)	1.9
Maximum viewing angle (Diagnal FOV)	85 degrees
		Optical total length (TTL)	10.45 mm
Back focal length (BFL (Back Focal Length))	0.8 mm
		Image Height (Image Height)	1.28 mm
Optical distortion(Optical Distortion)	<3.0％
		Relative illuminance (RI (Relative Illumination))	15.0％
Lateral Color difference (Laterminal Color)	<2μm
		Zoom Stroke (Stroke for Macro)	250μm
Chief ray angle (CRA (Chief Ray Angle))	39 degrees

In this embodiment, the photosensitive element 52 of the image capturing device has a size of 1 inch photosensitive element (16 mm diagonal), the lens assembly is a 7-piece lens assembly, and the aperture value (f.no) is 1.9. The first lens module 20 includes three first lenses 22 (22A, 22B, 22C), the second lens module 30 includes four second lenses 32 (32A, 32B, 32C, 32D), and the four second lenses (32A, 32B, 32C, 3D) and the three first lenses (22A, 22B, 22C) are sequentially arranged along the optical axis L from the object side a to the image side B. According to this embodiment, the maximum viewing angle (diagnostic FOV) of the Image capturing device is 85 degrees, the total optical length (TTL) (the distance between the second lens 32A closest to the object side a and the imaging IMG) is 10.45 mm, the back focal length (BFL (Back Focal Length)) is 0.8 mm, the Image Height (Image Height) is 1.28 mm, the optical distortion value is less than 3.0%, the relative illuminance (RI (Relative Illumination)) is 15%, the Lateral Color (transverse Color) is less than 2 μm, the zoom Stroke (Stroke for Macro) is 250 μm, and the chief ray angle (CRA (Chief Ray Angle)) is 39 degrees. Therefore, the image capturing device can be suitable for being used by a light and thin electronic device and has certain imaging optical quality. In addition, the object side diameter DA of the second lens element 32A closest to the object side a in the direction perpendicular to the optical axis L can be reduced to 4.6mm, which reduces the size of the opening for assembling the image capturing device and improves the applicability.

Claims (24)

1. An image capturing device, comprising:

an actuation module, comprising:

a base; and

a lens carrier which is arranged in the base body in a manner of being parallel to an optical axis in a displacement manner;

the first lens module is arranged in the base and is connected with the lens carrier;

the second lens module is arranged outside the seat body;

the aperture module is arranged on the base body and sleeved outside the second lens module;

the photosensitive component is arranged on one surface of the base body opposite to the second lens module; and

an optical anti-shake actuator is connected to the photosensitive component in a manner of being displaced relative to the actuating module perpendicular to the optical axis.

2. The image capturing device of claim 1, further comprising a patch disposed on a top surface of the base, wherein the second lens module abuts against the patch.

3. The image capturing device of claim 2, wherein the patch is made of a metal material.

4. The image capturing device of claim 3, wherein the patch has a plurality of meshes thereon.

5. The image capturing device of claim 1, wherein the first lens module comprises a first lens barrel and at least one first lens, the first lens barrel is disposed in the lens carrier, and the first lens is disposed in the first lens barrel.

6. The image capturing device of claim 1, wherein the second lens module comprises a second lens barrel and at least one second lens, the second lens barrel is disposed in the base, and the second lens is disposed in the second lens barrel.

7. The image capturing device of claim 6, wherein the second lens barrel comprises a cylindrical body and a rim, the rim is connected to an edge of one end of the cylindrical body, and the second lens barrel is attached to the base body by the rim.

8. The image capturing device of claim 7, wherein the aperture module abuts against a surface of the rim opposite to the base.

9. The image capturing device of claim 7, wherein the aperture module comprises a base, a seat and a plurality of blades, wherein one ends of the base and the seat respectively abut against the annular edge, the seat is accommodated in the base, and the blades are displaceably arranged at the other end of the seat.

10. The image capturing device of claim 1, wherein the aperture module comprises a plurality of blades and a first end and a second end opposite to each other, the blades are movably disposed at the first end, the second lens module has an incident surface and an emergent surface opposite to each other, the incident surface is far away from the first lens module compared with the emergent surface, the second end of the aperture module is sleeved on the second lens module, and the blades are close to the incident surface.

11. The image capturing device of claim 1, further comprising a first housing and a second housing, wherein the first housing and the second housing are abutted to define a receiving space together, the base is fixed to the first housing, and the photosensitive assembly is displaceably received in the receiving space.

12. The image capturing device of claim 11, wherein the first housing has a through opening, the shape of the through opening corresponds to the appearance shape of the base, and the base is accommodated in the through opening.

13. An image capturing device, comprising:

an actuation module, comprising:

a base; and

a lens carrier which is arranged in the base body in a manner of being parallel to an optical axis in a displacement manner;

the first lens module is arranged in the base and is connected with the lens carrier;

the second lens module is arranged outside the seat body;

the aperture module is arranged on the base body and sleeved outside the second lens module;

the photosensitive component is arranged on one surface of the base body opposite to the second lens module; and

an optical anti-shake actuator comprises a fixed part and a movable part, wherein the fixed part is connected with the actuating module, the movable part is connected with the photosensitive assembly, and the movable part can move relative to the fixed part perpendicular to the optical axis.

14. The image capturing device of claim 13, further comprising a first housing and a second housing, wherein the first housing and the second housing are abutted to define a receiving space together, the base is fixed to the first housing, and the photosensitive assembly is displaceably received in the second housing.

15. The image capturing device of claim 14, wherein the first housing has a through opening, the shape of the through opening corresponds to the appearance shape of the base, and the base is accommodated in the through opening.

16. The image capturing device of claim 15, further comprising a patch disposed on the first housing and covering the opening and a top surface of the base.

17. The image capturing device of claim 16, wherein the second lens module abuts against the patch.

18. The image capturing device of claim 17, wherein the second lens module comprises a rim, and the second lens module abuts against the patch with the rim.

19. The image capturing device of claim 18, wherein the aperture module abuts against a side of the rim opposite to the patch.

20. The image capturing device of claim 16, wherein the patch is made of a metal material.

21. The image capturing device of claim 20, wherein the patch has a plurality of meshes thereon.

22. The image capturing device of claim 13, wherein the photosensitive assembly comprises a substrate, a photosensitive element, a flexible flat cable and a carrier, the photosensitive element is electrically connected to the substrate, the flexible flat cable is electrically connected to the photosensitive element, the carrier is disposed on the substrate, one side of the carrier covers the photosensitive element, the other side of the carrier comprises a limiting slot, and the movable member is accommodated in the limiting slot.

23. The image capturing device of claim 22, wherein the carrier further comprises a plurality of limiting posts extending along a direction perpendicular to the optical axis, the flexible flat cable being sleeved on the limiting posts.

24. The image capturing device of claim 22, further comprising a first housing, a second housing, a first sensor and a second sensor, wherein the first housing and the second housing are abutted to define a receiving space together, the base is fixed to the first housing, the photosensitive element is displaceably received in the second housing, the first housing has a plurality of grooves facing the second housing, the first sensor is received in the grooves, the second sensor is disposed at a position of the substrate facing the first sensor, and the first sensor is capable of sensing displacement of the second sensor.