CN114089447B - Protection method for lens cone sky - Google Patents
Protection method for lens cone sky Download PDFInfo
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- CN114089447B CN114089447B CN202111421959.9A CN202111421959A CN114089447B CN 114089447 B CN114089447 B CN 114089447B CN 202111421959 A CN202111421959 A CN 202111421959A CN 114089447 B CN114089447 B CN 114089447B
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000003287 optical effect Effects 0.000 claims abstract description 85
- 230000001681 protective effect Effects 0.000 claims abstract description 39
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 238000010030 laminating Methods 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 230000004075 alteration Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a protection method for a lens cone sky, which comprises the following steps: forming an appearance film on the top surface of the lens barrel of the optical lens; attaching a first protective film on the appearance film, wherein the orthographic projection of the first protective film on the lens barrel top surface does not exceed the orthographic projection of the optical lens on the lens barrel top surface; assembling the optical lens into a camera, and testing the camera; laminating the second protection film on the first protection film of qualified camera of test, the second protection film takes the dyestripping handle, just the second protection film is right the laminating force of first protection film is greater than the first protection film is right the laminating force of outward appearance membrane. The method for protecting the lens barrel ceiling can protect the lens barrel ceiling in the assembling and testing process, and can not influence the assembling and testing process of the lens barrel ceiling.
Description
Technical Field
The invention relates to the field of camera manufacturing, in particular to a lens barrel sky surface protection method.
Background
The camera mainly comprises an optical lens and a sensor, wherein the optical lens is responsible for focusing light rays, the sensor is responsible for imaging the light rays, the optical lens further comprises a lens barrel and lenses, the lens barrel plays a role in supporting the lenses, the number of the lenses is generally 3-5, and the lenses are coaxially and sequentially assembled in the lens barrel.
The lens barrel top surface is the top surface of the lens barrel and surrounds the periphery of the uppermost lens, and in terminal equipment such as a mobile phone, a user can see the lens barrel top surface of the camera through the shooting hole on the cover plate, so the lens barrel top surface is the appearance surface of the camera. Because the lens barrel is made of plastic, the lens barrel is gray in color, and the periphery of the camera hole on the terminal is generally coated with a layer of black shading ink, chromatic aberration can be formed between the lens barrel top and the periphery of the camera hole.
In order to solve the chromatic aberration problem, some manufacturers can coat a layer of super-black film on the top surface of a lens barrel of an optical lens, but the super-black film is easy to dirty, the situation that the color of the super-black film is whitened when fingers slightly touch the lens barrel is solved, when the camera is assembled, technicians often carelessly touch the super-black film on the top surface of the lens barrel, and after the super-black film becomes dirty, the super-black film cannot be wiped by using alcohol or water, so that poor appearance of the assembled camera is often caused.
The Chinese patent discloses a lens module with an ultra-black film, which comprises a lens barrel, a front lens, a shading sheet and a plurality of rear lenses, wherein the front lens, the shading sheet and the rear lenses are arranged in the lens barrel; the light shielding sheet is provided with a light passing hole, a layer of ultra-black film is plated on the light shielding sheet, the light shielding sheet is positioned between the front lens and the rear lens, and the centers of the front lens, the light passing hole and the rear lens are positioned in the same light path. The lens module is internally provided with the super-black film, and the super-black film is protected by a layer of optical lens on the basis of not changing the structure and the characteristics of the lens, so that the outside cannot directly contact the super-black film, and the scratch and the dirt of the super-black film are reduced.
However, the difficulty in assembling the lens is undoubtedly increased by embedding the ultra-black film, in order to solve the technical problem, a technician considers that the film carrying operation is performed on the lens barrel ceiling of the optical lens when assembling the camera, but the existing protective film is provided with a handle for facilitating later film tearing, and the handle exceeds the outer edge of the lens barrel ceiling, so that structural interference is generated on assembling and testing equipment by the handle of the protective film when assembling and testing the camera, and the assembling and testing efficiency is affected.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a protection method for the lens barrel ceiling, which can protect the lens barrel ceiling in the assembly and test process and can not influence the assembly and test process of the lens barrel ceiling.
The technical problems to be solved by the invention are realized by the following technical scheme:
a protecting method of the lens cone sky surface comprises the following steps:
step 100: forming an appearance film on the top surface of the lens barrel of the optical lens;
step 200: attaching a first protective film on the appearance film, wherein the orthographic projection of the first protective film on the lens barrel top surface does not exceed the orthographic projection of the optical lens on the lens barrel top surface;
step 300: assembling the optical lens into a camera, and testing the camera;
step 400: laminating the second protection film on the first protection film of qualified camera of test, the second protection film takes the dyestripping handle, just the second protection film is right the laminating force of first protection film is greater than the first protection film is right the laminating force of outward appearance membrane.
Further, the first protective film is adapted to the outer shape of the lens barrel ceiling.
Further, the first protective film does not have a film tearing handle.
Further, the appearance film is a super black film.
Further, in step 300, the steps of assembling the optical lens into a camera and testing the camera are as follows:
step 301: screwing the optical lens into a bearing device;
step 302: carrying and solidifying the bearing device screwed with the optical lens on the sensor PCB;
step 303: focusing an optical lens AA in the bearing device, and then dispensing and curing;
step 304: and detecting the camera.
Further, the bearing device is a lens base or a voice coil motor.
Further, if the carrier is a voice coil motor, after screwing the optical lens into a carrier, before mounting and curing the carrier screwed with the optical lens on the sensor PCB, the method further comprises the following steps:
and performing full inspection on the voice coil motor screwed with the optical lens.
Further, in step 304, the detection items performed on the camera include at least one of stability detection, function detection, and appearance detection.
Further, before screwing the optical lens into a bearing device, the method further comprises the following steps:
and performing plasma cleaning on the optical lens.
Further, the method also comprises the following steps:
step 500: and scanning the information two-dimensional code on the qualified camera to obtain the product information of the camera.
The invention has the following beneficial effects: the protection method of the lens barrel top surface adopts a double-layer protection film structure, the front projection of the first protection film on the lens barrel top surface does not exceed the front projection of the optical lens on the lens barrel top surface, so that the appearance film on the lens barrel top surface is protected in the processes of screwing in and AA focusing of the optical lens and assembling and detecting of the camera, interference can not be generated on assembling equipment and detecting equipment, the second protection film is provided with a film tearing handle, and the second protection film is torn together with the first protection film when the film is torn at the later stage, so that the first protection film is torn off conveniently, the purposes that the appearance film on the lens barrel top surface is protected in the processes of screwing in and AA focusing of the optical lens and assembling and detecting of the camera can not be interfered by the assembling equipment and the detecting equipment can be achieved, and the first protection film can be torn off conveniently at the later stage.
Drawings
Fig. 1 is a block diagram of steps of a method for protecting a lens barrel sky surface according to the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, a method for protecting a lens barrel sky surface includes the following steps:
step 100: an appearance film is formed on the top surface of the lens barrel of the optical lens.
In this step 100, the camera includes an optical lens and a sensor, where the optical lens is responsible for focusing light, the sensor is responsible for imaging light, and the optical lens includes a lens barrel and lenses, the lens barrel plays a role of supporting the lenses, and the number of lenses is generally 3-5, and the lenses are coaxially and sequentially assembled in the lens barrel.
The lens barrel top surface is the top surface of the lens barrel and surrounds the periphery of the uppermost lens, and in terminal equipment such as a mobile phone, a user can see the lens barrel top surface of the camera through a shooting hole in the cover plate, so the lens barrel top surface is the appearance surface of the camera. In the prior art, the lens barrel is made of plastic, the lens barrel is gray, and the periphery of the image pick-up hole on the terminal is generally coated with a layer of black shading ink, so that chromatic aberration can be formed between the lens barrel top and the periphery of the image pick-up hole on the terminal.
The appearance film can be formed on the top surface of the lens barrel in a coating, magnetron sputtering or vacuum evaporation mode, and the color of the appearance film is consistent with or close to the color of the cover plate at the periphery of the camera shooting hole on the terminal, so that the camera and the cover plate on the terminal form an integral visual effect.
In this embodiment, the appearance film is a super-black film, and the super-black film is made of special materials, is very easy to dirty, and cannot be wiped by using alcohol or water, so that a technician often carelessly touches the super-black film on the top surface of the lens barrel with fingers when assembling the camera, and the super-black film is whitened, so that the problem of poor appearance of the camera occurs.
Of course, the appearance film can also adopt other color film layers, which is determined according to the color of the cover plate at the periphery of the camera hole on the terminal, and the appearance film also has the technical problem of additional cleaning due to dirt during assembly when adopting other film layers.
Step 200: and attaching a first protective film on the appearance film, wherein the orthographic projection of the first protective film on the lens barrel top surface does not exceed the orthographic projection of the optical lens on the lens barrel top surface.
In this step 200, in order to achieve connection with other components, the outer wall surface of the optical lens is not smooth, but is provided with an epitaxial structure such as a thread, a bump, etc., so that each cross section of the optical lens in the optical axis direction thereof has a different cross section boundary, so that the range of each orthographic projection of each cross section of the optical lens in the optical axis direction thereof on the lens barrel ceiling is all different, and the orthographic projection of the first protective film on the lens barrel ceiling should not exceed the total range of all orthographic projections of each cross section of the optical lens in the optical axis direction thereof on the lens barrel ceiling after superposition.
The first protection film may be, but not limited to, a PC film, a PE film, a PET film, a PMMA film, a PI film, or the like, and the shape thereof is adapted to the shape of the lens barrel ceiling, for example, when the shape of the lens barrel ceiling is a circular shape, the shape of the first protection film is a circular shape, and when the shape of the lens barrel ceiling is a frame shape, the shape of the first protection film is a rectangular shape, so that after the first protection film is formed on the lens barrel ceiling, shielding protection is formed on the lens in the lens barrel ceiling.
In this embodiment, the first protective film does not have a film tearing handle.
Step 300: and assembling the optical lens into a camera, and testing the camera.
In this step 300, in order to avoid the structure of the optical lens, the conventional lens assembling apparatus and lens testing apparatus are provided with corresponding through holes for the optical lens to pass through, rotate, etc. during assembling and testing, since the front projection of the first protective film on the lens barrel top surface should not exceed the total range of all front projections of each cross section of the optical lens along the optical axis direction on the lens barrel top surface, when assembling the lens and performing corresponding testing, the first protective film can pass through, rotate, etc. along with the optical lens in the through holes provided by the lens assembling apparatus and the lens testing apparatus, without causing interference to the apparatus.
Specifically, in step 300, the steps of assembling the optical lens into a camera and testing the camera are as follows:
step 301: the optical lens is screwed into a bearing device.
In step 301, if the camera is a fixed focus module, the carrying device is a lens holder, and if the camera is an auto focus module, the carrying device is a voice coil motor.
In the process of screwing the optical lens into the bearing device, a lens screwing tool can be used, if the first protective film is provided with a film tearing handle, in the process of screwing the optical lens into the bearing device, the film tearing handle on the first protective film can interfere with a lens clamping hole or an adsorption hole on the lens screwing tool, so that the optical lens cannot be well fixed by the lens clamping hole or the adsorption hole on the lens screwing tool.
The first protective film does not have a film tearing handle, and the orthographic projection on the lens barrel top surface does not exceed the orthographic projection of the optical lens on the lens barrel top surface, so that the whole first protective film can enter into a lens clamping hole or an adsorption hole on the lens screwing tool along with the optical lens.
If the bearing device is a voice coil motor, after the optical lens is screwed into the bearing device, the method further comprises the following steps:
and performing full inspection on the voice coil motor screwed with the optical lens.
Step 302: and carrying and solidifying the bearing device screwed with the optical lens on the sensor PCB.
In this step 302, a sensor is mounted on the sensor PCB, and after the carrier device is mounted and cured on the sensor PCB, the optical lens is located in front of the sensor, so as to focus light and provide the light to the sensor for imaging.
If the carrying device is a voice coil motor, the carrying device screwed with the optical lens is carried and solidified on the sensor PCB, and the method further comprises the following steps: and welding pins on the voice coil motor on the sensor PCB.
Step 303: and (3) focusing the optical lens AA in the bearing device, and then dispensing and curing.
In step 303, the optical lens in the carrying device is grabbed, and then slightly moved in six directions, i.e., front, back, left, right, up, down, so as to adjust the position of the optical lens in the carrying device, so that the image output by the sensor on the sensor PCB reaches the optimal resolution.
In the process of focusing the optical lens AA, a focusing ring is used, and similarly, the focusing ring is provided with a clamping hole for clamping the optical lens and driving the optical lens to slightly move in the bearing device, if the first protective film is provided with a film tearing handle, in the process of focusing the optical lens AA, the film tearing handle on the first protective film can interfere the clamping hole on the focusing ring, so that the optical lens cannot be well fixed by the clamping hole on the focusing ring.
The first protective film does not have a film tearing handle, and the orthographic projection on the lens barrel top surface does not exceed the orthographic projection of the optical lens on the lens barrel top surface, so that the whole first protective film can enter into the clamping hole on the focusing ring along with the optical lens.
Step 304: and detecting the camera.
In this step 304, the detection items performed on the camera include at least one of stability detection, function detection, and appearance detection.
Step 400: laminating the second protection film on the first protection film of qualified camera of test, the second protection film takes the dyestripping handle, just the second protection film is right the laminating force of first protection film is greater than the first protection film is right the laminating force of outward appearance membrane.
In this step 400, the second protective film may be, but not limited to, a PC film, a PE film, a PET film, a PMMA film, a PI film, or the like, including a bonding portion and the above-mentioned film tearing handle, where the film tearing handle is integrally connected to one side of the bonding portion, and the shape of the bonding portion is adapted to the shape of the first protective film, for example, when the shape of the first protective film is circular, the shape of the bonding portion is also circular, and when the shape of the first protective film is rectangular, the shape of the bonding portion is also rectangular, and the bonding portion should be slightly larger than the first protective film, so as to bond the whole first protective film.
Preferably, the front projection of the film tearing handle of the second protective film on the lens barrel top surface should exceed the total range of all front projections of all cross sections of the optical lens along the optical axis direction on the lens barrel top surface after superposition, so that a downstream user can conveniently grasp the film tearing handle on the second protective film when tearing the film, when the attaching force of the second protective film to the first protective film is larger than the attaching force of the first protective film to the appearance film, when the downstream user tears the second protective film, the second protective film can take up the first protective film and tear the first protective film together.
The protection method of the lens barrel top surface adopts a double-layer protection film structure, the front projection of the first protection film on the lens barrel top surface does not exceed the front projection of the optical lens on the lens barrel top surface, so that the appearance film on the lens barrel top surface is protected in the processes of screwing in and AA focusing of the optical lens and assembling and detecting of the camera, interference can not be generated on assembling equipment and detecting equipment, the second protection film is provided with a film tearing handle, and the second protection film is torn together with the first protection film when the film is torn at the later stage, so that the first protection film is torn off conveniently, the purposes that the appearance film on the lens barrel top surface is protected in the processes of screwing in and AA focusing of the optical lens and assembling and detecting of the camera can not be interfered by the assembling equipment and the detecting equipment can be achieved, and the first protection film can be torn off conveniently at the later stage.
Example two
Compared with the first embodiment, the method for protecting the lens barrel sky surface of the present embodiment further includes the following steps before screwing the optical lens into a bearing device:
and performing plasma cleaning on the optical lens.
According to the protection method, the optical lens is subjected to plasma cleaning, so that dirt on the surface of the optical lens can be washed away, and meanwhile, the first protection film can protect the appearance film on the top surface of the lens barrel from being damaged by the plasma.
Example III
Compared to the first or second embodiment, the method for protecting the lens barrel ceiling surface of the present embodiment further includes, after the step 400:
step 500: and scanning the information two-dimensional code on the qualified camera to obtain the product information of the camera.
According to the protection method, after the product information of the camera is obtained through scanning, archiving is carried out, and then the camera is shipped, so that the camera is managed in a tracing mode.
The above examples only show embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the invention, but all technical solutions obtained by equivalent substitution or equivalent transformation shall fall within the scope of the invention.
Claims (8)
1. The protecting method of the lens barrel sky surface is characterized by comprising the following steps:
step 100: forming an appearance film on a lens barrel ceiling of an optical lens, wherein the optical lens comprises a lens barrel and a lens, the lens barrel ceiling is the top surface of the lens barrel, and the top surface surrounds the periphery of the uppermost lens;
step 200: attaching a first protective film to the appearance film, wherein the first protective film is not provided with a film tearing handle and is adaptive to the appearance of the lens barrel top surface, and the orthographic projection of the optical lens on the lens barrel top surface does not exceed the orthographic projection of the optical lens on the lens barrel top surface;
step 300: assembling the optical lens into a camera, and testing the camera;
step 400: laminating second protection film on the first protection film of qualified camera of test, second protection film area dyestripping handle and laminating portion, the dyestripping handle connect in on one side of laminating portion, laminating portion's appearance with first protection film's appearance suits in order to glue first protection film, just the second protection film is right the laminating power of first protection film is greater than first protection film is right the laminating power of outward appearance membrane.
2. The method of claim 1, wherein the appearance film is a super black film.
3. The method according to claim 1, wherein in step 300, the steps of assembling the optical lens into a camera and testing the camera are as follows:
step 301: screwing the optical lens into a bearing device;
step 302: carrying and solidifying the bearing device screwed with the optical lens on the sensor PCB;
step 303: focusing an optical lens AA in the bearing device, and then dispensing and curing;
step 304: and detecting the camera.
4. The method of claim 3, wherein the carrier is a lens mount or a voice coil motor.
5. The method according to claim 4, wherein if the carrier is a voice coil motor, the method further comprises the steps of:
and performing full inspection on the voice coil motor screwed with the optical lens.
6. The method according to claim 3, wherein in step 304, the detection items performed on the camera include at least one of stability detection, function detection, and appearance detection.
7. The method of claim 3, further comprising the steps of, before screwing the optical lens into a carrier:
and performing plasma cleaning on the optical lens.
8. The method of protecting a lens barrel ceiling according to claim 1, further comprising the steps of:
step 500: and scanning the information two-dimensional code on the qualified camera to obtain the product information of the camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111421959.9A CN114089447B (en) | 2021-11-26 | 2021-11-26 | Protection method for lens cone sky |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111421959.9A CN114089447B (en) | 2021-11-26 | 2021-11-26 | Protection method for lens cone sky |
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| CN114089447A CN114089447A (en) | 2022-02-25 |
| CN114089447B true CN114089447B (en) | 2023-06-02 |
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| CN202111421959.9A Active CN114089447B (en) | 2021-11-26 | 2021-11-26 | Protection method for lens cone sky |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587219A (en) * | 2008-05-21 | 2009-11-25 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN208156276U (en) * | 2018-05-23 | 2018-11-27 | 信利光电股份有限公司 | A kind of lens module with blacker-than-black film |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI557438B (en) * | 2011-10-26 | 2016-11-11 | 鴻海精密工業股份有限公司 | Infrared ray filter and lens module using same |
| CN208940071U (en) * | 2018-10-15 | 2019-06-04 | 信利光电股份有限公司 | A kind of camera head protecting membrane structure |
| CN208940030U (en) * | 2018-11-20 | 2019-06-04 | 信利光电股份有限公司 | A kind of Mobile phone touch control mould group |
| CN112055132B (en) * | 2019-06-06 | 2022-09-02 | 华为技术有限公司 | Camera module and terminal with decorative film |
| WO2021168633A1 (en) * | 2020-02-24 | 2021-09-02 | 京东方科技集团股份有限公司 | Protective film module, display component and preparation method therefor, and heat dissipation component |
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2021
- 2021-11-26 CN CN202111421959.9A patent/CN114089447B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587219A (en) * | 2008-05-21 | 2009-11-25 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN208156276U (en) * | 2018-05-23 | 2018-11-27 | 信利光电股份有限公司 | A kind of lens module with blacker-than-black film |
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| CN114089447A (en) | 2022-02-25 |
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