CN114624842A - Lens fixing device and lens module - Google Patents
Lens fixing device and lens module Download PDFInfo
- Publication number
- CN114624842A CN114624842A CN202210240930.9A CN202210240930A CN114624842A CN 114624842 A CN114624842 A CN 114624842A CN 202210240930 A CN202210240930 A CN 202210240930A CN 114624842 A CN114624842 A CN 114624842A
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- lens
- elastic
- elastic arm
- fixing device
- arm
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- 230000002093 peripheral effect Effects 0.000 claims description 3
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- 238000000034 method Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
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- 238000007906 compression Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
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- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
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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
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
Abstract
The application discloses lens fixing device and camera lens module. The lens fixing device comprises a connecting part and an elastic part; the lens fixing device is of an annular structure; the connecting part and the elastic part are arranged in a stacked mode and connected together; the elastic part comprises a body part and an elastic arm, the elastic arm is arranged on one side of the body part, which is far away from the connecting part, and the first end of the elastic arm is fixedly connected with the body part; the second end of the elastic arm extends along the circumferential direction of the lens fixing device, and a gap part is formed between the elastic arm and the body part.
Description
Technical Field
The present application relates to the field of optical devices, and more particularly, to a lens fixing device and a lens module.
Background
In recent years, with the development of camera technology and the rise of electronic products with camera functions, optical camera modules are widely used in various products.
The conventional common lens fixing modes include dispensing, hot melting or pressing ring fixing. For example, the lens is fixed in the lens barrel by dispensing, so that the lens module is not easy to repair and has low reliability. Or when the lens is placed into the lens barrel, the lens barrel is partially softened and then is wrapped in the middle, so that the lens is fixed on the lens barrel, and the lens module is not easy to repair. Or when the lens is fixed through the compression ring, the lens module generates high temperature when in use, and the lens is not reliably connected with the compression ring due to different thermal collision coefficients of the lens and the compression ring.
In order to solve any one of the above technical problems, the present application provides a novel lens fixing device.
Disclosure of Invention
An object of the present application is to provide a lens fixing device and a new technical solution of a lens module.
According to a first aspect of embodiments of the present application, there is provided a lens holding device. The lens fixing device comprises a connecting part and an elastic part;
the lens fixing device is of an annular structure, and the connecting part and the elastic part are arranged in a stacked mode and connected together;
the connecting part is used for connecting with the inner wall of the lens cone;
the elastic part is used for contacting with the lens and comprises a body part and an elastic arm, the elastic arm is arranged on one side of the body part, which is far away from the connecting part, and the first end of the elastic arm is fixedly connected with the body part; the second end of the elastic arm extends along the circumferential direction of the lens fixing device, and a gap part is formed between the elastic arm and the body part.
Optionally, a plurality of said resilient arms are evenly arranged around a central axis of said lens holding device.
Optionally, the body portion has a first surface, the first surface and the elastic arm are disposed opposite to each other in an axial direction of the elastic portion, and a first gap portion is formed between the elastic arm and the first surface.
Optionally, the first slit portion has a width dimension along an axial direction of the elastic portion, and the width dimension gradually increases along an extending direction from the first end to the second end of the elastic arm.
Optionally, the body portion has a second surface, the second surface is opposite to the elastic arm in a circumferential direction of the elastic portion, and a second gap portion is formed between the elastic arm and the second surface.
Optionally, a thread is formed on an outer circumferential surface of the connecting portion, and the connecting portion is used for being screwed with the lens barrel.
Optionally, a groove is formed in a surface of the connecting portion away from the elastic portion.
Optionally, the lens fixing device is a metal part or a plastic part.
Optionally, the elastic portion and the connecting portion are integrally formed.
According to a second aspect of the embodiments of the present application, a lens module is provided. The temple module comprises a lens and a lens fixture as described in the first aspect, the lens being in contact with the resilient portion of the lens fixture.
In an embodiment of the present application, a lens holding device is provided. The lens fixing device includes a connecting portion and an elastic portion. The lens of the embodiment of the application is installed in the lens barrel through the lens fixing device, and has the advantages of being firm in reliability and easy to repair. The elastic arm is arranged on the elastic part of the lens fixing device in the embodiment of the application, namely, the lens can be in contact with the elastic arm, and under the condition that the connection between the lens and the lens fixing device is not reliable, the elastic arm can release elastic force, so that the lens can be kept in contact connection with the elastic part, and the condition that the lens is not reliable in fixation is avoided.
Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural view of a lens fixing device according to an embodiment of the present application.
Fig. 2 is a schematic structural view showing the lens mounted on the lens fixing device.
Fig. 3 is a schematic structural diagram of the lens module.
Description of reference numerals:
1. a lens fixing device; 10. a through hole; 11. a connecting portion; 111. a groove; 12. an elastic portion; 121. a body portion; 122. a resilient arm; 1221. a first end; 1222. a second end; 123. a first slit portion; 124. a second slit portion; 2. a lens; 3. a lens barrel.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The present application provides a lens fixing device 1, and as shown in fig. 1 to 2, the lens fixing device 1 includes a connecting portion 11 and an elastic portion 12 connected to the connecting portion 11. The lens fixing device 1 is of a ring structure. In a specific embodiment, the lens holder 1 is provided with a through hole 10, and the through hole 10 penetrates through the connecting portion 11 and the elastic portion 12. In use, the lens 2 is fixed to the lens fixture with the through hole 10 corresponding to the optic of the lens 2. For example, the lens holder 1 has a ring-shaped structure to allow light to pass through.
In the present embodiment, the connecting portion 11 and the elastic portion 12 are stacked and connected together. For example, the connecting portion 11 has a first surface disposed opposite to the elastic portion 12, and the elastic portion 12 has a second surface disposed opposite to the connecting portion 11, and the first surface and the second surface are attached and connected to connect the connecting portion 11 and the elastic portion 12 together. In a specific embodiment, the connecting portion 11 and the elastic portion 12 may be connected by heat fusion, or welding, or bonding, or by means of a snap-fit. In the present embodiment, the connection manner of the connection portion 11 and the elastic portion 12 is not limited. The material of the connecting portion 11 and the material of the elastic portion 12 may be the same or different. The connecting portion 11 may be made of plastic or metal. The elastic portion 12 may be replaced with an O-ring or a spring washer.
In a particular use, the connecting portion 11 is for connecting with an inner wall of the lens barrel 3. The lens fixing device 1 is attached to the lens barrel 3 by the connecting portion 11. For example, the connecting portion 11 and the lens barrel 3 may be connected by a snap-fit connection, an adhesive connection, a magnetic connection, or a screw connection. In the present embodiment, the connection manner between the connection portion 11 and the lens barrel 3 is not limited.
In a particular use, the elastic portion 12 is intended to be in contact with the lens 2. In this embodiment, the elastic portion 12 includes a main body 121 and an elastic arm 122, the elastic arm 122 is disposed on a side of the main body 121 away from the connecting portion 11, and a first end 1221 of the elastic arm 122 is fixedly connected to the main body 121; the second end 1222 of the elastic arm 122 extends along the circumferential direction of the lens fixing device 1, and a gap portion is formed between the elastic arm 122 and the body portion 121.
Specifically, the first end 1221 of the elastic arm 122 is fixed to the body portion 121, the second end 1222 of the elastic arm 122 is a free end (i.e., the second end 1222 of the elastic arm 122 is not in a connection relationship with any component), and the second end 1222 extends along the circumferential direction of the lens fixing device 1, i.e., the elastic arm 122 is an arc-shaped elastic arm 122.
In a specific embodiment, the first end 1221 of the elastic arm 122 may be welded to the body portion 121 or the elastic arm 122 may be integrally formed with the body portion 121. For example, in one embodiment, the spring arm 122 is welded to the body portion 121 as a separate component. The body 121 is formed with a recess for receiving the elastic arm 122, a first end 1221 of the elastic arm 122 is welded to the elastic portion 12, and a second end 1222 of the elastic arm 122 is located in the recess.
For example, in another embodiment, the resilient arm 122 is not a separate component, but a plurality of resilient arms 122 are cut from the resilient portion 12.
In this embodiment, the elastic arm 122 is disposed on the body portion 121, and a gap portion is formed between the elastic arm 122 and the body portion 121, wherein the gap portion serves as an adjustment space after the elastic arm 122 is deformed. For example, the lens 2 is mounted on the lens barrel 3 through the lens fixing device 1, the outer peripheral surface of the lens 2 abuts against the lens barrel 3, the end surface of the lens 2 close to the elastic portion 12 contacts with the elastic portion 12, while pressure is continuously applied to the lens 2, and the end surface of the lens 2 abuts against the elastic portion 12, so that the elastic arm 122 is deformed, and due to the existence of the gap portion, the elastic arm 122 can be deformed and completely flattened (i.e., the elastic arm 122 is pressed so that the gap portion between the elastic arm 122 and the body portion 121 becomes smaller or no gap portion is formed), so that the abutting force between the elastic portion 12 and the lens 2 is increased, and the reliability of mounting the lens 2 on the lens barrel 3 is improved.
In one embodiment, referring to fig. 1, a plurality of the resilient arms 122 are uniformly arranged around the central axis of the lens holding device 1.
Specifically, the lens 2 is mounted on the lens barrel 3 through the lens fixing device 1, the outer peripheral surface of the lens 2 abuts against the lens barrel 3, the end surface of the lens 2 close to the elastic portion 12 contacts with the elastic portion 12, and while pressure is continuously applied to the lens 2, the end surface of the lens 2 first contacts with the elastic arm 122. In this embodiment, since the plurality of elastic arms 122 are provided, the plurality of elastic arms 122 can transmit the acting force to the lens 2, respectively. Specifically, since the plurality of elastic arms 122 are uniformly arranged around the central axis of the lens fixing device 1, the acting force transmitted from the elastic arms 122 to the lens 2 is uniform, and the acting force borne by the lens 2 is also uniform, so as to avoid the phenomenon that the reliability of the installation of the lens 2 is poor and the phenomenon that the imaging effect of the lens 2 is poor due to the difference of the acting force borne by the lens 2. Referring to fig. 1, three elastic arms 122 are formed on the elastic portion 12, and the three elastic arms 122 are uniformly arranged.
In one embodiment, referring to fig. 1, the gap portion includes a first gap portion 123, the body portion 121 has a first surface, the first surface is opposite to the elastic arm 122 in the axial direction of the elastic portion 12, and the first gap portion 123 is formed between the elastic arm 122 and the first surface.
In this embodiment, the body portion 121 has a first surface, wherein the first surface is disposed opposite to the elastic arm 122 in the axial direction of the elastic portion 12. The elastic arm 122 forms a first gap portion 123 between the elastic arm 122 and the first surface without being subjected to an external pressure. When the lens 2 is continuously pressed in the process of installing the lens 2, the lens 2 abuts against the elastic arm 122, and because the first gap portion 123 exists between the elastic arm 122 and the first surface, the elastic arm 122 moves towards the direction away from the lens 2 and deforms, and the elastic arm 122 is gradually flattened, so that the surface of the elastic arm 122 close to the first surface is attached to the first surface.
In addition, when the lens 2 is mounted on the lens barrel 3 through the lens fixing device 1, under the condition of high temperature, the connection between the lens 2 and the lens fixing device 1 may be not so reliable (due to the fact that the thermal expansion coefficients of the lens 2 and the lens fixing device 1 are not consistent, the lens 2 and the lens fixing device 1 may come into loose contact), in which case the elastic arm 122 can generate deformation releasing elastic force (at this time, the elastic arm 122 does not completely contact with the first surface), so that the lens 2 can keep contact with the elastic portion 12.
In one embodiment, referring to fig. 1, the first slit part 123 has a width dimension along the axial direction of the elastic part 12, and the width dimension gradually increases along the extending direction from the first end 1221 to the second end 1222 of the elastic arm 122.
In this embodiment, the width dimension of the first slit part 123 is defined, wherein the width dimension of the second end 1222 closer to the first slit part 123 is smaller, and the width dimension of the second end 1222 closer to the first slit part 123 is larger, that is, one end of the elastic arm 122 is fixedly connected with the body part 121, and the second end 1222 of the elastic arm 122 extends along the circumferential direction of the lens fixing device 1 and is disposed obliquely upward. The resilient arm 122 is arranged such that the resilient arm 122 can have a better resilient effect.
In one embodiment, referring to fig. 1, the gap portion includes a second gap portion 124, the body portion 121 has a second surface, the second surface is opposite to the elastic arm 122 in the circumferential direction of the elastic portion 12, and the second gap portion 124 is formed between the elastic arm 122 and the second surface.
In this embodiment, since the elastic arm 122 needs to be moved and deformed in the axial direction of the elastic portion 12, the second end 1222 of the elastic arm 122 needs to be provided as a free end. In the process of moving and deforming the elastic arm 122 in the axial direction of the elastic portion 12, in order not to interfere with the body portion 121, a second slit portion 124 is formed between an end surface of the second end 1222 of the elastic arm 122 and the second surface of the elastic portion 12. Wherein the elastic arm 122 forms a second gap portion 124 with a wider dimension between the end surface of the second end 1222 of the elastic arm 122 and the second surface under the condition that the elastic arm 122 is not subjected to the external pressure. When the lens 2 is continuously pressed during the process of installing the lens 2, the lens 2 abuts against the elastic arm 122, and a second slit portion 124 with a narrow width is formed between the end surface of the second end 1222 of the elastic arm 122 and the second surface due to the external force applied to the elastic arm 122.
In one embodiment, as shown in fig. 1 and 2, the connection portion 11 has a screw thread formed on an outer circumferential surface thereof, and the connection portion 11 is used for being screwed with the lens barrel 3.
In this embodiment, a plurality of threads are formed on the outer wall of the connecting portion 11, and correspondingly, a plurality of threads are formed on the inner wall of the lens barrel 3, and the connecting portion 11 is threadedly coupled with the lens barrel 3 so that the lens fixing device 1 is mounted on the lens barrel 3.
In one embodiment, the surface of the connecting portion 11 away from the elastic portion 12 is formed with a groove 111.
In this embodiment, a groove 111 or a plurality of grooves 111 are formed on the surface of the connecting portion 11 away from the elastic portion 12. When the lens 2 is accommodated in the lens barrel 3, the lens fixing device 1 abuts against the lens 2, and the lens fixing device 1 can be rotatably adjusted by inserting a certain adjusting tool into the groove 111 of the lens fixing device 1, so that the lens fixing device 1 can be well connected with the inner wall of the lens barrel 3.
In one embodiment, the lens holder 1 is a metal part or a plastic part.
In this embodiment, the material of the lens fixing device 1 is limited, and the lens fixing device 1 may be made of metal or plastic, so as to prolong the service life of the lens fixing device 1.
In one embodiment, the elastic portion 12 and the connecting portion 11 are integrally formed.
In this embodiment, the elastic portion 12 and the connecting portion 11 are integrally molded. For example, the elastic portion 12 and the connecting portion 11 are made of the same material, the elastic portion 12 and the connecting portion 11 are made of metal, and the lens fixing device 1 may be formed by stamping, or the elastic portion 12 and the connecting portion 11 are made of plastic, and the lens fixing device 1 may be formed by injection molding.
According to a second aspect of the embodiments of the present application, referring to fig. 3, a lens module is provided. The lens module comprises a lens 2 and a lens holder according to the first aspect, wherein the lens 2 is in contact with the elastic portion 12 of the lens holder 1. Specifically, the lens 2 abuts against the elastic portion 12 of the lens fixing device 1. In this embodiment, the lens fixing device 1 is applied to a lens module, which facilitates the repair of the internal structure of the lens module.
In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.
Although some specific embodiments of the present application have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.
Claims (10)
1. A lens fixation device, characterized in that the lens fixation device (1) comprises a connection portion (11) and an elastic portion (12);
the lens fixing device (1) is of an annular structure; the connecting part (11) and the elastic part (12) are arranged in a stacked manner and connected together;
the elastic part (12) comprises a body part (121) and an elastic arm (122), the elastic arm (122) is arranged on one side, away from the connecting part (11), of the body part (121), and a first end (1221) of the elastic arm (122) is fixedly connected with the body part (121); the second end (1222) of the elastic arm (122) extends along the circumferential direction of the lens fixing device (1), and a gap portion is formed between the elastic arm (122) and the body portion (121).
2. The lens fixation device according to claim 1, characterized in that a plurality of said resilient arms (122) are evenly arranged around a central axis of the lens fixation device (1).
3. The lens holding device according to claim 1, wherein the slit portion includes a first slit portion (123), the body portion (121) has a first surface, the first surface is disposed opposite to the elastic arm (122) in an axial direction of the elastic portion (12), and the first slit portion (123) is formed between the elastic arm (122) and the first surface.
4. The lens fixation device according to claim 3, characterized in that the first slit portion (123) has a width dimension in the axial direction of the resilient portion (12), which width dimension gradually increases in the extension direction of the first end (1221) to the second end (1222) of the resilient arm (122).
5. Lens fixation device according to claim 1 or 3, characterized in that the slit portion comprises a second slit portion (124), the body portion (121) having a second surface arranged opposite the resilient arm (122) in the circumferential direction of the resilient portion (12), the resilient arm (122) and the second surface forming the second slit portion (124) therebetween.
6. The lens fixing device according to claim 1, wherein a screw thread is formed on an outer peripheral surface of the connecting portion (11), and the connecting portion (11) is used for screw-coupling with the lens barrel (3).
7. Lens holding device according to claim 1, characterized in that the surface of the connecting portion (11) remote from the resilient portion (12) is provided with a recess (111).
8. Lens fixation device according to claim 1, characterized in that the lens fixation device (1) is a metal part or a plastic part.
9. Lens fixation device according to claim 1, characterized in that the elastic portion (12) and the connecting portion (11) are integrally formed.
10. A lens module, characterized in that it comprises a lens (2) and a lens holder (1) according to any one of claims 1 to 9, said lens (2) being in contact with a resilient portion (12) of said lens holder (1).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210240930.9A CN114624842A (en) | 2022-03-10 | 2022-03-10 | Lens fixing device and lens module |
PCT/CN2022/101610 WO2023168860A1 (en) | 2022-03-10 | 2022-06-27 | Lens fixing device and lens module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210240930.9A CN114624842A (en) | 2022-03-10 | 2022-03-10 | Lens fixing device and lens module |
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CN114624842A true CN114624842A (en) | 2022-06-14 |
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CN202210240930.9A Pending CN114624842A (en) | 2022-03-10 | 2022-03-10 | Lens fixing device and lens module |
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CN (1) | CN114624842A (en) |
WO (1) | WO2023168860A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023168860A1 (en) * | 2022-03-10 | 2023-09-14 | 歌尔光学科技有限公司 | Lens fixing device and lens module |
Citations (1)
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CN208636494U (en) * | 2018-02-09 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | A kind of lens module |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3782088B2 (en) * | 2004-03-15 | 2006-06-07 | シャープ株式会社 | Leaf spring and lens actuator provided with the same |
CN101866040B (en) * | 2009-04-20 | 2013-04-24 | 鸿富锦精密工业(深圳)有限公司 | Focusing lens module |
CN101923200B (en) * | 2009-06-12 | 2013-03-20 | 鸿富锦精密工业(深圳)有限公司 | Lens module |
CN206523689U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Camera lens module |
CN114624842A (en) * | 2022-03-10 | 2022-06-14 | 歌尔光学科技有限公司 | Lens fixing device and lens module |
-
2022
- 2022-03-10 CN CN202210240930.9A patent/CN114624842A/en active Pending
- 2022-06-27 WO PCT/CN2022/101610 patent/WO2023168860A1/en unknown
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CN208636494U (en) * | 2018-02-09 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | A kind of lens module |
Non-Patent Citations (1)
Title |
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"《电影发行放映技术资格考试题解(上册)》", 湖南科学技术出版社, pages: 387 * |
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WO2023168860A1 (en) * | 2022-03-10 | 2023-09-14 | 歌尔光学科技有限公司 | Lens fixing device and lens module |
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