CN114189615A - A camera module for reducing moving stains and a method for reducing moving stains on a camera module - Google Patents
A camera module for reducing moving stains and a method for reducing moving stains on a camera module Download PDFInfo
- Publication number
- CN114189615A CN114189615A CN202111485588.0A CN202111485588A CN114189615A CN 114189615 A CN114189615 A CN 114189615A CN 202111485588 A CN202111485588 A CN 202111485588A CN 114189615 A CN114189615 A CN 114189615A
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- Prior art keywords
- base
- circuit board
- camera module
- stains
- glue
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a camera module for reducing moving stains and a method for reducing the moving stains of the camera module, wherein 1, the camera module for reducing the moving stains comprises a lens module; the base is fixed with the lens module, and an optical filter is arranged in the base; the circuit board is connected with the base, an image sensor is arranged on the circuit board, a closed space is formed between the base and the circuit board, at least part of the area of the base located in the closed space is provided with a glue layer, and the glue layer can stick dust or debris in the closed space. According to the invention, the glue layer is arranged in the base, dust and debris in the closed space can be stuck by carrying out low-amplitude high-frequency vibration on the base and the circuit board integrally, the closed space is purified, black spots or black spots on a shot picture caused by the dust and the debris falling on a photosensitive surface are avoided, the condition that the dust and the debris do not fall on an image sensor in the subsequent use process of the camera module is ensured, the shot is clear, and the qualification rate of products is improved.
Description
Technical Field
The invention relates to the technical field of camera modules, in particular to a camera module capable of reducing moving stains and a method for reducing the moving stains of the camera module.
Background
Due to the limitation of the assembly process and the assembly environment of the camera module, when the camera module is produced in large scale, as shown in fig. 1, after the circuit board 10 'and the base 20' are fixed, a closed space is formed, and due to the image sensor 30 'arranged on the circuit board 10', and the light sensing surface of the image sensor 30 'is located in the closed space, if dust and debris residues exist in the space, the substances can move in the closed space due to the fact that the substances are not sticky, and if the substances fall on the light sensing surface of the image sensor 30', black spots or black spots can appear on a shot picture, the image quality is affected, and the product yield is low.
In view of this, it is urgently needed to improve the existing camera module to prevent dust and debris from falling onto the image sensor.
Disclosure of Invention
The invention discloses a camera module for reducing moving stains and a method for reducing the moving stains of the camera module, which are used for solving the problem that in the prior art, dust and debris fall on an image sensor to cause black spots or black spots on a shot picture.
In order to solve the problems, the invention adopts the following technical scheme:
provides a camera module for reducing moving stains, which comprises,
a lens module;
the base is fixed with the lens module, and an optical filter is arranged in the base;
the circuit board, with the base is connected, be equipped with image sensor on the circuit board, the base with form airtight space between the circuit board, be located in the airtight space the at least subregion of base is equipped with the glue film, the glue film can be stuck dust or piece in the airtight space.
In the above scheme, the glue layer comprises non-setting adhesive.
In the above scheme, one end of the base connected with the lens module is cylindrical, and the inner part of the base is provided with an internal thread matched with the external thread of the lens module.
In the above scheme, the light sensing surface of the image sensor is arranged at a side close to the circuit board.
In the scheme, a glue layer protection net is arranged in the closed space.
In the above scheme, the glue layer is disposed in an area enclosed by the glue layer protection net and the base, and/or the circuit board.
The invention also provides a method for reducing moving stains of the camera module, which comprises the following steps:
providing a base;
spraying glue on at least partial area of the inner wall of the side, to be connected, of the base and the circuit board to form a glue layer;
connecting the base with the circuit board;
and vibrating the base and the circuit board integrally at a small amplitude and a high frequency.
In the scheme, the vibration amplitude of the base and the circuit board is not more than 1cm, and the frequency is not more than 3 Hz.
In the scheme, the glue is non-flowable and non-curable.
In the above scheme, during spraying, the lens module and the optical filter are prevented from being polluted by the glue.
The technical scheme adopted by the invention can achieve the following beneficial effects:
the glue layer is arranged in the base, and dust and debris in the closed space can be stuck by carrying out low-amplitude high-frequency vibration on the base and the circuit board integrally, so that the closed space is purified, black spots or black spots on a shot picture caused by the fact that the dust and the debris fall on a photosensitive surface of the image sensor are avoided, the fact that the dust and the debris fall on the image sensor in the subsequent use process of the camera module is ensured, the dust and the debris cannot fall on the image sensor, the shot is clear, the qualification rate of products is improved, and the user experience is improved; and the glue film sets up in glue film protection network and base, and/or the circuit board encloses the region of closing, if the glue film drops, also can fall in the glue film protection network, can not fall on the circuit board, does not influence the normal use of the module of making a video recording.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description thereof illustrate the present invention and do not constitute a limitation of the present invention. In the drawings:
FIG. 1 is a schematic view of a lens module and a fixing device in the prior art;
fig. 2 is a schematic structural view of a camera module for reducing moving stains according to embodiment 1 of the present invention;
fig. 3 is a flowchart of a method for reducing moving stains of a camera module according to embodiment 2 of the present invention.
The following reference signs are specifically included:
prior art circuit board-10'; prior art base-20'; image sensor-30' in the prior art; a lens module-10; a base-20; a circuit board-30; an image sensor-31; glue layer-40; glue line protection net-41; a filter-50.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 2, the camera module for reducing moving stains provided by the invention comprises,
a lens module 10; a base 20 fixed with the lens module 10, wherein the base 20 is provided with an optical filter 50; the circuit board 30 is connected with the base 20, the image sensor 31 is arranged on the circuit board 30, a closed space is formed between the base 20 and the circuit board 30, a glue layer 40 is arranged on at least part of the area of the base 20 located in the closed space, and the glue layer 40 can stick dust or debris in the closed space.
According to the invention, the glue layer 40 is arranged in the base, and dust and debris in the closed space can be stuck by carrying out low-amplitude high-frequency vibration on the base 20 and the circuit board 30 integrally, so that the closed space is purified, black spots or black spots on a shot picture caused by the dust and the debris falling on the photosensitive surface of the image sensor 31 are avoided, and the condition that the dust and the debris do not fall on the image sensor 31 in the subsequent use process of the camera module is ensured, so that the shot is clear, the qualification rate of products is improved, and the user experience is improved.
The adhesive layer 40 includes a non-setting adhesive. Specifically, a non-flowable and non-curable glue is selected, and the base 20 is covered with the glue by spraying.
The end of the base 20 connected to the lens module 10 is cylindrical, and has internal threads inside to match the external threads of the lens module 10. The lens module 10 is fixed to the knob of the fixing portion 20, and the screw structure facilitates the assembly and disassembly.
The light-sensing surface of the image sensor 31 is disposed on the side close to the circuit board 30. Image sensor 31 is the signal of telecommunication that becomes corresponding proportional relation with light image conversion on the photosurface with photoelectric device's photoelectric conversion function, and the light image on the photosurface is the image that the module of making a video recording was taken, and the whole image of shooing can be influenced to other impurity appearing on the photosurface, consequently needs to guarantee the clean and tidy of photosurface.
Be equipped with glue film protection net 41 in the airtight space, this embodiment is preferred, glue film 40 sets up in glue film protection net 41 and base 20, and/or circuit board 30 encloses the region of closing in, because glue film 40 vibrations or live time overlength ageing all can have the risk of coming off, if glue film 40 comes off and falls to the sensitization face and can seriously influence the module of making a video recording and shoot, consequently set up glue film protection net 41, prevent that glue film 40 from coming off, and glue film protection net 41's aperture is greater than dust and clastic size, consequently can not influence glue film 40 and normally function.
Example 2
The invention provides a method for reducing moving stains of a camera module, which comprises the following steps:
providing a base 20;
spraying glue on the inner wall of the side, to be connected, of the base 20 and the circuit board 30, wherein the glue forms a glue layer 40;
connecting the base 20 with the circuit board 30;
the base 20 and the circuit board 30 are vibrated at a small amplitude and a high frequency as a whole.
In this embodiment, adopt the vibrations of low amplitude high frequency, make dust, the piece in the airtight space touch the non-setting adhesive to being stuck by glue film 40, having realized the purification to airtight space, guarantee to make a video recording the module in subsequent use, can not have dust, piece to fall on image sensor.
The amplitude of the vibration of the base 20 and the circuit board 30 is not more than 1cm, and the frequency is not more than 3 Hz. Preferably, the amplitude is 0.5-1 cm, and the frequency is 2-3 Hz.
In the preferred embodiment, the glue is a non-flowable, non-curable glue.
The present embodiment further includes fixing the lens module 10 on the base 20, and focusing the lens module 10.
In this embodiment, attention should be paid to prevent the glue from contaminating the lens module 10 and the optical filter 50.
According to the invention, the glue layer is arranged in the base, and dust and debris in the closed space can be stuck by carrying out low-amplitude high-frequency vibration on the base and the circuit board integrally, so that the closed space is purified, black spots or black spots on a shot picture caused by the dust and the debris falling onto the photosensitive surface of the image sensor are avoided, and the condition that no dust and debris fall onto the image sensor in the subsequent use process of the camera module is ensured, so that the shot is clear, the qualification rate of a product is improved, and the user experience is improved; and the glue film sets up in glue film protection network and base, and/or the circuit board encloses the region of closing, if the glue film drops, also can fall in the glue film protection network, can not fall on the circuit board, does not influence the normal use of the module of making a video recording.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A camera module for reducing moving stains, which is characterized by comprising,
a lens module;
the base is fixed with the lens module, and an optical filter is arranged in the base;
the circuit board, with the base is connected, be equipped with image sensor on the circuit board, the base with form airtight space between the circuit board, be located in the airtight space the at least subregion of base is equipped with the glue film, the glue film can be stuck dust or piece in the airtight space.
2. The camera module of reducing moving stains of claim 1, wherein the adhesive layer comprises a non-setting adhesive.
3. The camera module for reducing moving stains as claimed in claim 1, wherein one end of the base connected with the lens module is cylindrical, and is internally provided with an internal thread adapted to an external thread of the lens module.
4. The camera module of reducing moving stains of claim 1, wherein the photosensitive surface of the image sensor is arranged on a side close to the circuit board.
5. The camera module for reducing moving stains according to claim 1, wherein a glue layer protection net is arranged in the closed space.
6. The camera module for reducing moving stains according to claim 5, wherein the adhesive layer is arranged in an area enclosed by the adhesive layer protection net and the base, and/or the circuit board.
7. A method for reducing moving stain of a camera module is characterized by comprising the following steps:
providing a base;
spraying glue on at least partial area of the inner wall of the side, to be connected, of the base and the circuit board to form a glue layer;
connecting the base with the circuit board;
and vibrating the base and the circuit board integrally at a small amplitude and a high frequency.
8. The method of reducing moving stains on a camera module of claim 7, wherein the vibration amplitude of the base and the circuit board is not more than 1cm, and the frequency is not more than 3 Hz.
9. The method of reducing camera module movement stain of claim 7, wherein the glue is a non-flowable, non-setting glue.
10. The method of claim 7, wherein the glue is prevented from contaminating the lens module and the filter during the spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111485588.0A CN114189615A (en) | 2021-12-07 | 2021-12-07 | A camera module for reducing moving stains and a method for reducing moving stains on a camera module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111485588.0A CN114189615A (en) | 2021-12-07 | 2021-12-07 | A camera module for reducing moving stains and a method for reducing moving stains on a camera module |
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| Publication Number | Publication Date |
|---|---|
| CN114189615A true CN114189615A (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111485588.0A Pending CN114189615A (en) | 2021-12-07 | 2021-12-07 | A camera module for reducing moving stains and a method for reducing moving stains on a camera module |
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2021
- 2021-12-07 CN CN202111485588.0A patent/CN114189615A/en active Pending
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Application publication date: 20220315 |
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