CN114598820A

CN114598820A - Sensor shift optical anti-shake structure device

Info

Publication number: CN114598820A
Application number: CN202210336610.3A
Authority: CN
Inventors: 谭碧亮; 于立新
Original assignee: Shenzhen Holitech Optoelectronics Co Ltd
Current assignee: Shenzhen Holitech Optoelectronics Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-06-07
Anticipated expiration: 2042-04-01
Also published as: CN114598820B

Abstract

The invention relates to the technical field of optical anti-shake, in particular to a Sensor shift optical anti-shake structure device, which comprises a VCM AF part and a Sensor shift part, wherein the Sensor shift part also comprises a base; four corners of the top of the base are respectively provided with a PCB fixing elastic sheet and a ball; a second PCB board; the two PCB plates are positioned at the top of the base, four corners of the bottom of the two PCB plates correspond to the tops of the four PCB fixing elastic sheets, and the bottom of the two PCB plates and the round balls are mutually supported; the Hall integrated circuit and the OIS coil are welded at four corners of the second PCB, and the Hall integrated circuit is positioned inside the OIS coil; and the CMOS sensor is arranged in the middle of the top end of the PCB II and is attached with an IR filter. In the invention, the sensor shift is directly carried out through algorithm calculation to realize optical anti-shake, so that the focusing speed is higher, the anti-shake effect is better, the weight of the sensor shift assembly is greatly reduced compared with that of the LENS shift assembly, the volume is reduced, and the problem of insufficient thrust of the LENS shift structure can be solved.

Description

Sensor shift optical anti-shake structure device

Technical Field

The invention relates to the technical field of optical anti-shake, in particular to a Sensor shift optical anti-shake structure device.

Background

Most of optical anti-shake devices applied in the current market realize optical anti-shake through Lens shift, and the mode that the anti-shake is realized through signal transmission to a sensor through a movable Lens and then algorithm calculation is relatively slow in speed is adopted in the anti-shake mode; along with the continuous lifting of pixels, the height size of the camera module is gradually increased, the structural design space is limited and exceeds the appearance of the whole machine; and Lens and VCM's volume and weight also grow in the pixel lift camera module for Lens shift can only be realized to very big thrust, and Lens shift thrust has been difficult lifting by the structural constraint. In view of the above, a Sensor shift optical anti-shake structure device is needed.

Disclosure of Invention

The invention provides a Sensor shift optical anti-shake structure device which comprises a VCM AF part and a Sensor shift part, wherein the Sensor shift part also comprises a base; four corners of the top of the base are respectively provided with a PCB fixing elastic sheet and a ball; a second PCB board; the two PCB plates are positioned at the top of the base, four corners of the bottom of the two PCB plates correspond to the tops of the four PCB fixing elastic sheets, and the bottom of the two PCB plates and the round balls are mutually supported; the Hall integrated circuit and the OIS coil are welded at four corners of the second PCB, and the Hall integrated circuit is positioned inside the OIS coil; the CMOS sensor is arranged in the middle of the top end of the PCB II and is attached with an IR filter; the support is arranged above the PCB II, a carrier is arranged in the middle of the support, a lens is arranged in the middle of the carrier, and an AF coil is embedded in the outer side of the carrier.

As a preferred technical scheme of the invention, one side of the bottom of the second PCB is fixedly connected with a super-flexible circuit board, one end of the super-flexible circuit board is connected with the first PCB, the bottom of one end of the first PCB is provided with a connector, and the top of the first PCB is respectively integrated with a driving integrated circuit and a gyroscope.

According to a preferable technical scheme of the invention, four corners of the bottom of the support are provided with magnets, and one side of the middle of the support is provided with a VCM (voice coil motor) connected with the FPC assembly.

As a preferred technical solution of the present invention, the upper spring plate and the lower spring plate are respectively disposed at two ends of the inside of the bracket, the upper spring plate and the lower spring plate are respectively disposed at the upper end and the lower end of the carrier, the carrier is supported by the upper spring plate and the lower spring plate, and the top of the bracket is connected to the bottom of the housing.

As a preferable aspect of the present invention, the position of the IR filter and the position of the lens correspond to each other.

As a preferred technical scheme of the invention, the second PCB board can move and rotate towards the direction X, Y.

The invention has the beneficial effects that: the Sensor shift optical anti-shake structure device adopts an AF VCM and Sensor shift integrated structure design, and directly performs Sensor shift through algorithm calculation to realize optical anti-shake, so that the focusing speed is higher, the anti-shake effect is better, the weight of a Sensor shift assembly is greatly reduced compared with that of a LENS shift assembly, the volume is reduced, and the problem of insufficient thrust of an LENS shift structure can be solved; and AF VCM and Sensor shift integrated structure design can great degree the reduction camera module height, solves the camera module and surpasss the problem of complete machine appearance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a Sensor shift optical anti-shake structure device according to the present invention;

FIG. 2 is a schematic cross-sectional view of the main structure of a Sensor shift optical anti-shake structure device according to the present invention;

fig. 3 is a schematic structural view of a second PCB of the Sensor shift optical anti-shake structure device of the present invention;

FIG. 4 is a first plan view of a PCB of the Sensor shift optical anti-shake structure device of the present invention;

fig. 5 is a second top view of a PCB board of the Sensor shift optical anti-shake structure device of the present invention.

In the figure: 1. a base; 2. a first PCB board; 3. a gyroscope; 4. a drive integrated circuit; 5. a connector; 6. a second PCB board; 7. a Hall integrated circuit; 8. an IR filter; 9. a ball; 10. a housing; 1001. a VCM AF portion; 1002. a Sensor shift section; 11. an upper spring plate; 12. a lens; 13. a carrier; 14. a support; 15. a magnet; 16. the VCM is connected with the FPC assembly; 17. a lower spring plate; 18. an OIS coil; 19. an ultra-flexible circuit board; 20. the PCB fixes the elastic sheet; 21. a CMOS sensor; 22. a capacitance resistance element; 23. an AF coil.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-2, the Sensor shift optical anti-shake structure device of the present invention includes a VCM AF portion 1001 and a Sensor shift portion 1002, where the Sensor shift portion 1002 further includes a base 1; the four corners of the top of the base 1 are respectively provided with a PCB fixing elastic sheet 20 and a ball 9, an AF VCM and a Sensor shift integrated structure are designed, the height of the camera module can be greatly reduced by the AF VCM and the Sensor shift integrated structure, and the problem that the camera module exceeds the appearance of the whole machine is solved.

Two 6 PCB boards, two 6 PCB boards are located the top of base 1, and the bottom four corners of two 6 PCB boards and the top of four PCB fixed elastic pieces 20 correspond each other, the bottom and the ball 9 of two 6 PCB boards support each other, ball 9 dress is supporting two 6 PCB boards and supplementary two 6 PCB boards on base 1 and is removing, two 6 PCB boards are drawn with the shell fragment in four corners of two PCB boards and are connected fixedly with base 1, super flexibility circuit board 19 is connected with two 6 PCB boards, VCM AF part is conventional structural design, main protrusion Sensor shift part 1002.

The bracket 14 is arranged above the PCB II 6, the carrier 13 is arranged in the middle of the bracket 14, the lens 12 is arranged in the middle of the carrier 13, and the AF coil 23 is embedded outside the carrier 13; an upper elastic sheet 11 and a lower elastic sheet 17 are respectively arranged at two ends of the inner part of the support 14, the upper elastic sheet 11 and the lower elastic sheet 17 are respectively arranged at the upper end and the lower end of the carrier 13, the carrier 13 is supported by the upper elastic sheet 11 and the lower elastic sheet 17, the top of the support 14 is connected with the bottom of the shell 10, and the carrier 13 moves up and down for focusing.

The shell 10 is in a hollow rectangular shape, the shell 10 is located above the base 1, the second PCB 6 can move and rotate towards X, Y, after the external shaking inclination compensation is calculated through an algorithm, the electromagnetic principle is used for driving the integrated circuit 4 (Driver IC) to control the whole second PCB 6 to move and rotate towards X, Y, and therefore optical anti-shaking is achieved.

The super flexible circuit board 19 of bottom one side fixedly connected with of two 6 PCBs, the one end of super flexible circuit board 19 is connected with one 2 PCBs, the one end bottom of one 2 PCBs is provided with connector 5, integrated drive integrated circuit 4 and gyroscope 3 respectively at the top of one 2 PCBs, gyroscope 3 sensing is for the slope shake and calculate shake angle output signal and give drive integrated circuit 4 → drive integrated circuit 4 receives behind the gyroscope 3 signal through the algorithm calculation output current for OIS coil 18 and magnetite 15 production electromagnetic drive power on two 6 PCBs.

As shown in fig. 3-5, the Sensor shift optical anti-shake structure device of the present invention comprises a hall integrated circuit 7, an OIS coil 18, a capacitance resistance component 22, wherein the hall integrated circuit 7 and the OIS coil 18 are both welded at four corners of a PCB board two 6, the hall integrated circuit 7 is located inside the OIS coil 18, and the hall Sensor is a magnetic field Sensor manufactured according to a hall effect;

CMOS sensor 21, CMOS sensor 21 set up in the top middle part of PCB board two 6, and CMOS sensor 21 laminates IR filter 8, and IR filter 8 is infrared filter promptly, and each wavelength of infrared filter is suitable for the effect of environment infrared filter: according to the wavelength specification of the lens, the infrared ray is allowed to pass while the visible light is blocked and filtered. The infrared effect can be separated in the light environment of visible light and infrared mixed by using the infrared separation device.

The invention is mainly used for the anti-shake function of some shooting devices, in particular to the anti-shake function of mobile phones, vehicles, unmanned planes, medical equipment, smart homes and other shooting devices, and the specific working principle is as follows: after the whole equipment is installed, the internal AF VCM and the Sensor shift are in an integrated structural design, wherein a VCM AF part 1001 is in a conventional structural design and is mainly subjected to an improved Sensor shift part 1002; and after the AF VCM part 1001 and the Sensor shif part 1002 are integrated, the height of the camera module can be greatly reduced by the integrated structural design, and the problem that the camera module exceeds the appearance of the whole machine is solved.

After the external shaking tilt compensation is calculated through the algorithm, the COMS Sensor is moved through the electromagnetic principle to shift in X, Y directions and rotate to achieve optical shaking tilt compensation, the gyroscope 3 senses the tilt shaking and calculates shaking angle output signals to the driving integrated circuit 4 → the driving integrated circuit 4 receives the gyroscope 3 signals and then calculates output current through the algorithm to generate electromagnetic driving force → electromagnetic driving force to enable the whole PCB second 6 to move and rotate in X, Y directions (namely, Sensor shift) to compensate the tilt shaking generated outside, so that an optical shaking prevention function → a clear shot picture is achieved. Focusing anti-shake speed is faster, the effect is better, only needs less thrust just can realize optics anti-shake, has saved structural design space, and whole camera module height also has the reduction of great degree can be better satisfy structural design requirement.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a Sensor shift optics anti-shake constructional device which characterized in that includes:

a VCM AF part (1001) and a Sensor shift part (1002), the Sensor shift part (1002) further comprising a base (1);

four corners of the top of the base (1) are respectively provided with a PCB fixing elastic sheet (20) and a round ball (9);

a second PCB (6);

the second PCB (6) is positioned at the top of the base (1), four corners of the bottom of the second PCB (6) correspond to the tops of the four PCB fixing elastic sheets (20), and the bottom of the second PCB (6) is supported by the round balls (9);

the Hall integrated circuit (7), the OIS coil (18) and the capacitance resistance component (22), wherein the Hall integrated circuit (7) and the OIS coil (18) are welded at four corners of the second PCB (6), and the Hall integrated circuit (7) is positioned inside the OIS coil (18);

the CMOS sensor (21) is arranged in the middle of the top end of the second PCB (6), and the IR filter (8) is attached to the CMOS sensor (21);

the support (14) is arranged above the PCB II (6), the carrier (13) is arranged in the middle of the support (14), the lens (12) is arranged in the middle of the carrier (13), and the AF coil (23) is embedded in the outer side of the carrier (13);

the outer shell (10), outer shell (10) are the hollow rectangle form, and outer shell (10) are located the top of base (1).

2. The Sensor shift optical anti-shake structure device according to claim 1, wherein:

the PCB is characterized in that a super-flexible circuit board (19) is fixedly connected to one side of the bottom of the second PCB (6), one end of the super-flexible circuit board (19) is connected with the first PCB (2), a connector (5) is arranged at the bottom of one end of the first PCB (2), and a driving integrated circuit (4) and a gyroscope (3) are integrated at the top of the first PCB (2) respectively.

3. The Sensor shift optical anti-shake structure device according to claim 1, wherein:

the bottom four corners of support (14) all are provided with magnetite (15), middle part one side of support (14) is provided with VCM and connects FPC subassembly (16).

4. The Sensor shift optical anti-shake structure device according to claim 1, wherein:

the support is characterized in that an upper elastic sheet (11) and a lower elastic sheet (17) are respectively arranged at two ends of the interior of the support (14), the upper elastic sheet (11) and the lower elastic sheet (17) are respectively arranged at the upper end and the lower end of the carrier (13), the carrier (13) is supported by the upper elastic sheet (11) and the lower elastic sheet (17), and the top of the support (14) is connected with the bottom of the shell (10).

5. The Sensor shift optical anti-shake structure device according to claim 1, wherein:

the position of the IR filter (8) and the position of the lens (12) correspond to each other.

6. The Sensor shift optical anti-shake structure device according to claim 1, wherein:

the second PCB board (6) can move and rotate towards the direction X, Y.