CN111736296A - Lens module - Google Patents
Lens module Download PDFInfo
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- CN111736296A CN111736296A CN202010866967.3A CN202010866967A CN111736296A CN 111736296 A CN111736296 A CN 111736296A CN 202010866967 A CN202010866967 A CN 202010866967A CN 111736296 A CN111736296 A CN 111736296A
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- China
- Prior art keywords
- lens
- ois
- mounting part
- base
- lens module
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a lens module, which comprises a lens cone component, a base, an AF electromagnetic driving component and an OIS electromagnetic driving component, wherein the base can movably support the lens cone component; the lens module comprises a base, a first mounting part, a second mounting part, a ball and a lens barrel assembly, wherein the first mounting part is arranged on one side of the lens barrel assembly close to the base; the Vickers hardness of the first mounting part and the Vickers hardness of the second mounting part are both larger than that of the ball. Through ball and first installation department and second installation department butt, the base passes through the movable support lens barrel assembly of ball to the vickers hardness of first installation department, second installation department all is greater than the vickers hardness of support piece, thereby forms a reliable and stable lens module through electromagnetic drive.
Description
Technical Field
The invention relates to the technical field of electromagnetic driving optical devices, in particular to a lens module.
Background
In recent years, high performance lens modules have been installed in electronic devices. The high performance lens module generally has an Auto Focusing (AF) function and an Optical Image Stabilization (OIS) function. When carrying out automatic focusing, the camera lens makes the camera lens move along the optical axis direction of camera lens through a set of ball and guide rail that bear, makes the organism that bears the camera lens move along the direction of perpendicular to optical axis and compensate through another set of ball and guide rail that bear when carrying out the anti-shake to the reliability that the camera lens was looked a view is ensured.
However, in the prior art, the parts in contact with the bearing balls are made of stainless steel or plastic, and after the lens is collided or falls, pits and scratches occur between the bearing balls and the parts in contact with the bearing balls, so that the automatic focusing function and the optical anti-shake function are seriously affected.
Therefore, it is necessary to provide a lens module with stable performance and high reliability to solve the above problems.
Disclosure of Invention
The invention aims to provide a lens module which is electromagnetically supported and driven, wherein the Vickers hardness of a part connected with a supporting piece in a supporting assembly is higher than that of the supporting piece.
The technical scheme of the invention is as follows:
a lens module comprises a lens cone component, a base which can movably support the lens cone component, an AF electromagnetic driving component which drives the lens cone component to move along the optical axis direction, and an OIS electromagnetic driving component which drives the lens cone component to move along the direction vertical to the optical axis;
the lens module comprises a base, a lens barrel assembly, a first mounting part, a second mounting part, balls and a lens module, wherein the first mounting part is arranged on one side of the lens barrel assembly close to the base, the second mounting part is arranged on one side of the base close to the lens barrel assembly corresponding to the first mounting part, the balls are respectively abutted against the first mounting part and the second mounting part, and the base movably supports the lens barrel assembly through the balls;
wherein the Vickers hardness of the first mounting part and the Vickers hardness of the second mounting part are both greater than the Vickers hardness of the ball.
Optionally, the first installation portion comprises a first ceramic sheet abutted against the ball, and the second installation portion comprises a second ceramic sheet abutted against the ball.
Optionally, the hardness of the first ceramic sheet and the second ceramic sheet is 1000HV-2000 HV.
Optionally, the roughness of both the first ceramic sheet and the second ceramic sheet is less than 30 nm.
Optionally, the first ceramic sheet and the second ceramic sheet are made of one or more of alumina, zirconia, silicon carbide, silicon nitride and aluminum nitride.
Optionally, the first ceramic wafer with the second ceramic wafer is connected rather than corresponding through joint, bonding, or inlay the mode of establishing respectively first installation department with on the second installation department.
Optionally, the lens module further includes two sets of restoring magnetic steels facing each other, and the two sets of restoring magnetic steels are respectively disposed on the lens barrel assembly and the base.
Optionally, a counterweight is further disposed on the lens barrel assembly.
Optionally, the AF electromagnetic driving assembly includes an AF coil and an AF circuit board, the AF coil is connected with the AF circuit board, and the AF circuit board is connected with the base; the OIS electromagnetic driving assembly comprises an OIS coil and an OIS circuit board, and the OIS coil is connected with the OIS circuit board;
AF magnetic steel is arranged on one side of the lens cone assembly, OIS magnetic steel is arranged on the other side of the lens cone assembly, and the AF magnetic steel interacts with the AF coil and is used for AF adjustment;
and an OIS magnetic steel is arranged on one side of the lens cone assembly, which deviates from the AF magnetic steel, and the OIS magnetic steel interacts with the OIS coil and is used for OIS adjustment.
Optionally, the optical lens module further comprises a housing, and the housing encloses the lens barrel assembly, the base, the AF electromagnetic driving assembly, and the OIS electromagnetic driving assembly.
The invention has the beneficial effects that: through setting up lens cone subassembly, the base of movable support lens cone subassembly, AF electromagnetic drive subassembly, OIS electromagnetic drive subassembly and ball, and set up first installation department on lens cone subassembly, set up the second installation department on the base, ball and first installation department and second installation department butt, the movable support lens cone subassembly of base through the ball, and the vickers hardness of first installation department, second installation department all is greater than the vickers hardness of support piece, thereby form a reliable and stable lens module through electromagnetic drive.
Drawings
FIG. 1 is a schematic view of a lens module according to an embodiment of the present invention;
FIG. 2 is a schematic view of the lens module of FIG. 1 from another perspective;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is an exploded view of a portion of the lens module of FIG. 1;
fig. 5 is an exploded view of the internal structure of the lens module according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1 to 5, a lens module includes a barrel assembly 1, a base 2 movably supporting the barrel assembly 1, an AF electromagnetic driving assembly 3 driving the barrel assembly 1 to move in an optical axis direction, and an OIS electromagnetic driving assembly 4 driving the barrel assembly 1 to move in a direction perpendicular to the optical axis direction; the lens module further comprises a ball 5 which is respectively abutted with the first installation part 11 and the second installation part 21, and the base 2 supports the lens cone assembly 1 through the ball 5 in a movable manner; the vickers hardness of the first mounting part 11 and the second mounting part 21 is greater than that of the ball 5, so that after the lens barrel assembly 1 is driven to move relative to the base 2 for a long time, the AF electromagnetic driving assembly 3 and the OIS electromagnetic driving assembly 4 can still ensure the stability of the movement between the ball 5 and the first mounting part 11 and the second mounting part 21, namely, the movement environment of the ball 5 in the first mounting part 11 and the second mounting part 21 is not changed, and the movement accuracy and the response timeliness of the lens barrel assembly 1 in the AF adjustment and OIS adjustment processes are ensured. Compared with the scheme of directly combining the ball 5 with plastic or stainless steel in the prior art, pits and scratches are formed in the first mounting part 11 and the second mounting part 21 after the lens module falls, and smoothness and accuracy of the operation of the ball 5 in the first mounting part 11 and the second mounting part 21 are seriously affected. Specifically, the lens barrel assembly 1 includes a lens barrel holder 12 and a lens barrel 13, the lens barrel 13 is mounted on the lens barrel holder 12, the first mount portion 11 is provided on the lens barrel holder 12, and specifically, the first mount portion 11 is of a groove-shaped structure. Furthermore, 4 first mounting portions 11 are arranged on the lens barrel support 12, 4 second mounting portions 21 are correspondingly arranged on the base 2, the first mounting portions 11 and the second mounting portions 21 enclose to form an accommodating space, the ball 5 can be movably accommodated in the accommodating space, and the accommodating space has a limiting effect on the ball 5.
Preferably, the first mounting part 11 comprises a first ceramic plate 111 abutting the ball 5, the second mounting part 21 comprises a second ceramic plate 211 abutting the ball 5, and the ball 5 abuts the first ceramic plate 111 and the second ceramic plate 211, thereby ensuring the strength of the contact surface of the ball 5.
Preferably, the hardness of the first ceramic sheet 111 and the second ceramic sheet 211 is 1000HV-2000 HV.
Preferably, the roughness of both the first ceramic sheet 111 and the second ceramic sheet 211 is less than 30 nm.
Further, the first ceramic sheet 111 and the second ceramic sheet 211 are made of one or more selected from aluminum oxide, zirconium oxide, silicon carbide, silicon nitride, and aluminum nitride.
The first ceramic piece 111 and the second ceramic piece 211 are respectively connected in the first mounting part 11 and the second mounting part 21 corresponding to the first ceramic piece 111 and the second ceramic piece 211 in a clamping, bonding or embedding manner, that is, the first ceramic piece 111 is mounted in the first mounting part 11, and the second ceramic piece 211 is mounted in the second mounting part 21, so that the reliability of mounting and connecting the first ceramic piece 111 and the second ceramic piece 211 is guaranteed.
The lens module comprises two groups of restoring magnetic steels 6 which are arranged just opposite to each other, and the two groups of restoring magnetic steels 6 are respectively arranged on the lens cone component 1 and the base 2. Specifically, the restoring magnetic steel 6 on the lens barrel assembly 1 is arranged on one side of the lens barrel bracket 12 departing from the first mounting part 11 and is opposite to the first mounting part 11; the restoring magnetic steel 6 on the base 2 is arranged on one side of the base 2 departing from the second mounting part 21 and corresponds to the second mounting part 21. Reply magnet steel 6 and be used for driving lens cone support 12 and base 2 to be close to each other to compress tightly ball 5, make the guide lens cone subassembly 1 motion that ball 5 can be better, on the other hand, reply magnet steel 6 and provide the drive power that resets for lens cone subassembly 1.
Preferably, the lens barrel assembly 1 is further provided with a counterweight.
The AF electromagnetic driving component 3 comprises an AF coil 31, an AF circuit board 32 and AF magnetic steel 33, wherein the AF coil 31 is connected with the AF circuit board 32, and the AF circuit board 32 drives the AF coil 31 to generate magnetic force which is mutually attracted or repelled with the AF magnetic steel 33, so that AF adjustment is carried out. The AF magnetic steel 33 is provided on the side of the barrel holder 12 close to the AF electromagnetic drive unit 3. Preferably, the AF magnetic steel 33 is symmetrically disposed on the lens barrel holder 12, the AF coil 31 is disposed on the base 2 corresponding to the position of the AF magnetic steel 33, and the AF circuit board 32 is connected to the base 2.
The OIS electromagnetic driving component 4 comprises an OIS coil 41, an OIS circuit board 42 and OIS magnetic steel 43, the OIS coil 41 is connected with the OIS circuit board 42, and the OIS circuit board 42 is used for driving the OIS coil 41 to generate magnetic force which is mutually attracted or repelled with the OIS magnetic steel 43, so that OIS adjustment is carried out. The OIS magnetic steel 43 is arranged on one side of the lens cone support 12 close to the OIS electromagnetic driving component 4, preferably, the OIS magnetic steel 43 is symmetrically arranged on the lens cone support 12, the OIS coil 41 and the OIS magnetic steel 43 are correspondingly arranged on the base 2, and the OIS circuit board 42 is connected with the shell 7.
The housing 7 houses the lens barrel assembly 1, the base 2, the AF electromagnetic drive assembly 3, and the OIS electromagnetic drive assembly 4 inside thereof, and can limit the range of movement for AF adjustment and the range of movement for OIS adjustment. Specifically, the housing 7 includes an upper cover plate 71, a lower cover plate 72, a first limiting frame 73 and a second limiting frame 74, the upper cover plate 71 and the lower cover plate 72 are respectively covered on the first limiting frame 73 and the second limiting frame 74, and both the first limiting frame 73 and the second limiting frame 74 are L-shaped structures. The upper cover plate 71, the lower cover plate 72, the first limit frame 73 and the second limit frame 74 enclose to form an accommodating space.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A lens module is characterized by comprising a lens cone component, a base which can movably support the lens cone component, an AF electromagnetic driving component which drives the lens cone component to move along the optical axis direction, and an OIS electromagnetic driving component which drives the lens cone component to move along the direction vertical to the optical axis;
the lens module comprises a base, a lens barrel assembly, a first mounting part, a second mounting part, balls and a lens module, wherein the first mounting part is arranged on one side of the lens barrel assembly close to the base, the second mounting part is arranged on one side of the base close to the lens barrel assembly corresponding to the first mounting part, the balls are respectively abutted against the first mounting part and the second mounting part, and the base movably supports the lens barrel assembly through the balls;
wherein the Vickers hardness of the first mounting part and the Vickers hardness of the second mounting part are both greater than the Vickers hardness of the ball.
2. The lens module as recited in claim 1, wherein the first mounting portion comprises a first ceramic plate abutting the ball, and the second mounting portion comprises a second ceramic plate abutting the ball.
3. The lens module as recited in claim 2, wherein the hardness of the first ceramic sheet and the second ceramic sheet is 1000HV-2000 HV.
4. The lens module as recited in claim 3, wherein the roughness of the first ceramic sheet and the second ceramic sheet are both less than 30 nm.
5. The lens module as recited in claim 2, wherein the first ceramic plate and the second ceramic plate are made of one or more of alumina, zirconia, silicon carbide, silicon nitride and aluminum nitride.
6. The lens module of claim 2, wherein the first ceramic plate and the second ceramic plate are connected in the first mounting portion and the second mounting portion corresponding thereto by means of clamping, bonding, or embedding, respectively.
7. The lens module as claimed in claim 1, further comprising two sets of restoring magnetic steels disposed opposite to each other, wherein the two sets of restoring magnetic steels are disposed on the lens barrel assembly and the base respectively.
8. The lens module as claimed in claim 7, wherein the barrel assembly further comprises a weight.
9. The lens module as recited in claim 1, wherein the AF electromagnetic driving component comprises an AF coil and an AF circuit board, the AF coil is connected with the AF circuit board, and the AF circuit board is connected with the base; the OIS electromagnetic driving assembly comprises an OIS coil and an OIS circuit board, and the OIS coil is connected with the OIS circuit board;
AF magnetic steel is arranged on one side of the lens cone assembly, OIS magnetic steel is arranged on the other side of the lens cone assembly, and the AF magnetic steel interacts with the AF coil and is used for AF adjustment;
and an OIS magnetic steel is arranged on one side of the lens cone assembly, which deviates from the AF magnetic steel, and the OIS magnetic steel interacts with the OIS coil and is used for OIS adjustment.
10. The lens module as claimed in claim 1, further comprising a housing enclosing the barrel assembly, the base, the AF electromagnetic drive assembly, and the OIS electromagnetic drive assembly therein.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010866967.3A CN111736296A (en) | 2020-08-26 | 2020-08-26 | Lens module |
| PCT/CN2020/113519 WO2022041308A1 (en) | 2020-08-26 | 2020-09-04 | Lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010866967.3A CN111736296A (en) | 2020-08-26 | 2020-08-26 | Lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111736296A true CN111736296A (en) | 2020-10-02 |
Family
ID=72658867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010866967.3A Pending CN111736296A (en) | 2020-08-26 | 2020-08-26 | Lens module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111736296A (en) |
| WO (1) | WO2022041308A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5905917A (en) * | 1997-03-14 | 1999-05-18 | Nikon Corporation | Vibration reduction device |
| US5974270A (en) * | 1996-12-26 | 1999-10-26 | Nikon Corporation | Motion compensation device for an optical system and method |
| CN1776515A (en) * | 2004-11-19 | 2006-05-24 | 株式会社腾龙 | Parallel movement apparatus, and actuator, lens unit and camera having the same |
| JP2006349942A (en) * | 2005-06-15 | 2006-12-28 | Tamron Co Ltd | Image blur correcting device and imaging apparatus equipped therewith |
| CN109254475A (en) * | 2017-07-12 | 2019-01-22 | 日本电产三协株式会社 | Optical unit with shake correcting function |
| CN110139013A (en) * | 2019-06-01 | 2019-08-16 | 瑞声科技(新加坡)有限公司 | Camera module and periscopic camera |
| CN110703405A (en) * | 2019-10-15 | 2020-01-17 | 瑞声通讯科技(常州)有限公司 | Lens module |
| CN110955094A (en) * | 2019-11-15 | 2020-04-03 | 嘉兴中润光学科技有限公司 | Anti-shake group, anti-shake lens and camera device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3952207B2 (en) * | 2004-12-15 | 2007-08-01 | 株式会社タムロン | Actuator and lens unit and camera provided with the same |
| CN209767652U (en) * | 2019-05-31 | 2019-12-10 | 上海比路电子股份有限公司 | Anti-shake structure, anti-shake system and camera device |
-
2020
- 2020-08-26 CN CN202010866967.3A patent/CN111736296A/en active Pending
- 2020-09-04 WO PCT/CN2020/113519 patent/WO2022041308A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5974270A (en) * | 1996-12-26 | 1999-10-26 | Nikon Corporation | Motion compensation device for an optical system and method |
| US5905917A (en) * | 1997-03-14 | 1999-05-18 | Nikon Corporation | Vibration reduction device |
| CN1776515A (en) * | 2004-11-19 | 2006-05-24 | 株式会社腾龙 | Parallel movement apparatus, and actuator, lens unit and camera having the same |
| JP2006349942A (en) * | 2005-06-15 | 2006-12-28 | Tamron Co Ltd | Image blur correcting device and imaging apparatus equipped therewith |
| CN109254475A (en) * | 2017-07-12 | 2019-01-22 | 日本电产三协株式会社 | Optical unit with shake correcting function |
| CN110139013A (en) * | 2019-06-01 | 2019-08-16 | 瑞声科技(新加坡)有限公司 | Camera module and periscopic camera |
| CN110703405A (en) * | 2019-10-15 | 2020-01-17 | 瑞声通讯科技(常州)有限公司 | Lens module |
| CN110955094A (en) * | 2019-11-15 | 2020-04-03 | 嘉兴中润光学科技有限公司 | Anti-shake group, anti-shake lens and camera device |
Non-Patent Citations (2)
| Title |
|---|
| 沙桂英: "《材料的力学性能》", 31 July 2015 * |
| 王吉会: "《材料力学性能原理与实验教程》", 31 March 2018 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022041308A1 (en) | 2022-03-03 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 213000 Xinwei 1st Road, Changzhou Comprehensive Bonded Zone, Jiangsu Province Applicant after: Chengrui optics (Changzhou) Co., Ltd Address before: 213000 Xinwei 1st Road, Changzhou Comprehensive Bonded Zone, Jiangsu Province Applicant before: Ruisheng Communication Technology (Changzhou) Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201002 |
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| RJ01 | Rejection of invention patent application after publication |