CN112751997A - Camera module and assembling method - Google Patents
Camera module and assembling method Download PDFInfo
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- CN112751997A CN112751997A CN201911051989.8A CN201911051989A CN112751997A CN 112751997 A CN112751997 A CN 112751997A CN 201911051989 A CN201911051989 A CN 201911051989A CN 112751997 A CN112751997 A CN 112751997A
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- Prior art keywords
- lens
- circle center
- camera module
- track
- image
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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
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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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
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
Abstract
The disclosure provides a camera module and an assembling method, and belongs to the technical field of electronics. The camera module comprises a lens and a lens, and the assembling method comprises the following steps: the method comprises the steps of obtaining a contour track of a lens as a first contour track by shooting the lens; acquiring a contour track of a silk-screen hole on the lens as a second contour track by shooting the lens; and under the condition of keeping the position of the lens fixed, controlling the lens to move according to the distance between the circle center of the first contour track and the circle center of the second contour track, and installing the lens above the lens to enable the circle center of the silk-screen hole to be superposed with the circle center of the lens. The camera module is directly assembled according to the circle center of the outline track of the lens and the circle center of the outline track of the silk screen hole in the assembling process, the assembled camera module cannot be influenced by the middle assembling steps, assembling tolerance is avoided as far as possible, and eccentricity of the camera module is reduced.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a camera module and an assembling method.
Background
The camera module is the important component of electronic equipment, and along with the development of electronic technology and the wide popularization of shooting function, people also are higher and higher to the requirement of camera module, not only require the camera module can realize shooting function, still require the camera module pleasing to the eye as far as possible.
As shown in fig. 1, a conventional camera module includes a lens 101, a protective ring 102, and a lens 103, where the lens 103 is provided with a silk-screen hole 104. When assembling the camera module, the lens 101 is first installed in the opening 105 reserved on the electronic device, the protective ring 102 is then sleeved outside the lens 101, and then the lens 103 is erected on the protective ring 102, so that the center of a circle of the screen printing hole 104 on the lens 103 coincides with the center of a circle of the lens 101.
The assembling process includes a plurality of assembling steps, each of which may generate an assembling tolerance, resulting in a large distance between the center of the screen printing hole 104 and the center of the lens 101, and thus, a large eccentricity of the camera module exists.
Disclosure of Invention
The utility model provides a camera module and assembly method can overcome the camera module among the correlation technique and have the problem of great eccentricity, technical scheme is as follows:
according to a first aspect provided by an embodiment of the present disclosure, there is provided an assembling method of a camera module, where the camera module includes a lens and a lens, the method includes:
acquiring a contour track of the lens as a first contour track by shooting the lens;
acquiring a contour track of a silk-screen hole on the lens as a second contour track by shooting the lens;
and under the condition of keeping the position of the lens fixed, controlling the lens to move according to the distance between the circle center of the first contour track and the circle center of the second contour track, and installing the lens above the lens to enable the circle center of the screen printing hole to be coincident with the circle center of the lens.
In one possible implementation, the method further includes:
and the lens is arranged in the opening of the electronic equipment.
In another possible implementation, the electronic device includes a housing, and the opening is disposed on the housing.
In another possible implementation, the method further includes: mounting the lens in a first retainer ring to form a lens assembly;
the mounting the lens above the lens comprises: and the lens assembly is arranged above the lens, so that the circle center of the silk-screen hole is superposed with the circle center of the lens, and the first protection ring is positioned above the shell.
In another possible implementation, the first retainer includes a first portion and a second portion, the first portion and the second portion forming an angle therebetween that is greater than 0 degrees and less than 180 degrees;
the will the lens is installed in first protection ring, constitutes the lens subassembly, includes:
filling an adhesive material on the lower side of the lens;
and mounting the lens in the first retaining ring, so that the first part is sleeved outside the lens, and the second part is positioned below the lens and is bonded with the lens through the bonding material.
In another possible implementation manner, the mounting the lens in an opening of an electronic device includes:
sleeving a second protective ring on the outer side of the lens to form a lens assembly;
and installing the lens assembly in the opening.
In another possible implementation, the method further includes:
and a third protective ring is sleeved on the outer side of the lens, so that the third protective ring is positioned above the second protective ring.
In another possible implementation manner, the sleeving a third protection ring outside the lens to make the third protection ring above the second protection ring includes:
filling an adhesive material on the outer side of the lens and above the second protective ring;
and the third protective ring is sleeved on the outer side of the lens, so that the third protective ring is bonded with the lens and the second protective ring through the bonding material.
In another possible implementation, the method further includes:
and maintaining the pressure of the assembled camera module.
In another possible implementation, the method is applied to a Charge Coupled Device (CCD) device, the CCD device comprises a camera, a processing unit and a movable grabbing device, the camera is connected with the processing unit, and the processing unit is connected with the grabbing device;
the camera is used for shooting the lens to obtain a lens image and sending the lens image to the processing unit;
the camera is also used for shooting the lens to obtain a lens image and sending the lens image to the processing unit;
the processing unit is used for receiving the lens image and the lens image, identifying the lens image to obtain the first contour track, and identifying the lens image to obtain the second contour track;
the processing unit is further configured to control the grabbing device to move according to a distance between a circle center of the first profile track and a circle center of the second profile track, drive the lens grabbed by the grabbing device to move, and mount the lens above the lens, so that the circle center of the screen printing hole coincides with the circle center of the lens.
According to a second aspect provided by the embodiments of the present disclosure, a camera module is provided, where the camera module includes a lens and a lens, and the camera module is assembled by using the assembling method of the first aspect.
The camera module and the assembling method provided by the embodiment of the disclosure acquire the contour track of the lens as a first contour track by shooting the lens, acquire the contour track of the silk-screen hole on the lens as a second contour track by shooting the lens, and control the lens to move according to the distance between the circle center of the first contour track and the circle center of the second contour track under the condition of keeping the position of the lens fixed, so that the circle center of the silk-screen hole coincides with the circle center of the lens by installing the lens above the lens. In the assembling process, the camera module is directly assembled according to the circle center of the outline track of the lens and the circle center of the outline track of the silk screen hole, the camera module obtained by assembling cannot be influenced by the middle assembling steps, the assembling tolerance is avoided as far as possible, and the eccentricity of the camera module is reduced.
Moreover, in the related art, because the camera module has larger eccentricity to cause poor vision, super black is arranged outside the screen printing hole of the lens in a printing ink printing mode to shield the structure inside the lens, so that the problem of poor vision is improved, and the production cost is increased. In the embodiment of the disclosure, the eccentricity is reduced, and the problem of poor vision of the position of the camera is improved, so that super black does not need to be arranged on the periphery of the lens, and the production cost is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural view of a camera module shown in the related art;
fig. 2 is a flow chart illustrating a method of assembling a camera module according to an exemplary embodiment;
fig. 3 is a flow chart illustrating a method of assembling a camera module according to an exemplary embodiment;
fig. 4 is a schematic structural diagram illustrating a camera module according to an exemplary embodiment;
fig. 5 is a flow chart illustrating a method of assembling a camera module according to an exemplary embodiment;
fig. 6 is a schematic structural diagram illustrating a camera module according to an exemplary embodiment;
fig. 7 is a schematic structural diagram illustrating a camera module according to an exemplary embodiment;
FIG. 8 is an assembled schematic view of a multi-camera module, according to an exemplary embodiment;
FIG. 9 is a schematic diagram illustrating a lens profile and a silk-screened hole profile in accordance with an exemplary embodiment.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Fig. 2 is a flowchart illustrating an assembly method of a camera module including a lens and a lens according to an exemplary embodiment, as shown in fig. 2, the method including:
201. and acquiring the contour track of the lens as a first contour track by shooting the lens.
202. And shooting the lens to obtain the contour track of the silk-screen hole on the lens as a second contour track.
203. And under the condition of keeping the position of the lens fixed, controlling the lens to move according to the distance between the circle center of the first contour track and the circle center of the second contour track, and installing the lens above the lens to enable the circle center of the silk-screen hole to be superposed with the circle center of the lens.
The method provided by the embodiment of the disclosure includes the steps of shooting a lens to obtain a contour track of the lens as a first contour track, shooting a lens to obtain a contour track of a silk-screen hole on the lens as a second contour track, and controlling the lens to move according to the distance between the circle center of the first contour track and the circle center of the second contour track under the condition that the position of the lens is kept fixed, so that the lens is installed above the lens, and the circle center of the silk-screen hole is overlapped with the circle center of the lens. In the assembling process, the camera module is directly assembled according to the circle center of the outline track of the lens and the circle center of the outline track of the silk screen hole, the camera module obtained by assembling cannot be influenced by the middle assembling steps, the assembling tolerance is avoided as far as possible, and the eccentricity of the camera module is reduced.
In one possible implementation, the method further comprises:
the lens is mounted in an opening on the electronic device.
In another possible implementation, an electronic device includes a housing with an opening disposed therein.
In another possible implementation, the method further includes: mounting the lens in the first retainer ring to form a lens assembly;
mounting a lens over a lens, comprising: the lens assembly is arranged above the lens, so that the circle center of the silk-screen hole is superposed with the circle center of the lens, and the first protection ring is positioned above the shell.
In another possible implementation, the first retainer includes a first portion and a second portion, the first portion and the second portion forming an angle therebetween that is greater than 0 degrees and less than 180 degrees;
install the lens in first protection ring, constitute the lens subassembly, include:
filling adhesive material on the lower side of the lens;
the lens is arranged in the first protection ring, so that the first part is sleeved outside the lens, and the second part is positioned below the lens and is bonded with the lens through bonding material.
In another possible implementation, a lens is mounted in an opening of an electronic device, including:
sleeving a second protective ring on the outer side of the lens to form a lens assembly;
the lens assembly is mounted in the opening.
In another possible implementation, the method further includes:
and a third protective ring is sleeved on the outer side of the lens, so that the third protective ring is positioned above the second protective ring.
In another possible implementation manner, the third protection ring is sleeved outside the lens, so that the third protection ring is located above the second protection ring, including:
filling adhesive material on the outer side of the lens and above the second protective ring;
and a third protective ring is sleeved on the outer side of the lens, so that the third protective ring is bonded with the lens and the second protective ring through a bonding material.
In another possible implementation, the method further includes:
and maintaining the pressure of the assembled camera module.
In another possible implementation, the method is applied to a Charge Coupled Device (CCD) device, the CCD device comprises a camera, a processing unit and a movable grabbing device, the camera is connected with the processing unit, and the processing unit is connected with the grabbing device;
the camera is used for shooting the lens to obtain a lens image and sending the lens image to the processing unit;
the camera is also used for shooting the lens to obtain a lens image and sending the lens image to the processing unit;
the processing unit is used for receiving the lens image and the lens image, identifying the lens image to obtain a first contour track, and identifying the lens image to obtain a second contour track;
and the processing unit is also used for controlling the grabbing device to move according to the distance between the circle center of the first contour track and the circle center of the second contour track, driving the lens grabbed by the grabbing device to move, and installing the lens above the lens so that the circle center of the screen printing hole is superposed with the circle center of the lens.
The camera module comprises a lens and a lens, and when the camera module is assembled in the related art, the lens is installed in a reserved hole in the electronic equipment, the protective ring is sleeved outside the lens, and then the lens is erected on the protective ring, so that the circle center of a silk-screen hole in the lens coincides with the circle center of the lens. During installation, assembly tolerance may be generated in each step, so that a larger distance exists between the circle center of the silk-screen hole and the circle center of the lens, and a camera module has larger eccentricity.
The embodiment of the disclosure provides an assembling method of a camera module, which can be directly assembled according to the circle center of the outline track of the lens and the circle center of the outline track of the screen printing hole, so that the eccentricity of the camera module is reduced. The process is described in more detail in the examples below.
Fig. 3 is a flowchart illustrating an assembly method of a camera module according to an exemplary embodiment, and fig. 4 is a schematic structural diagram illustrating a camera module according to an exemplary embodiment, where, as shown in fig. 3 and 4, the camera module includes a lens and a lens, and the assembly method is applied to a CCD (Charge-coupled Device) apparatus, and the method includes:
301. a lens 401 is mounted in an aperture 402 on the electronic device.
The electronic device can be various types of portable, pocket, handheld and the like, such as a mobile phone, a computer, a tablet computer and the like.
The opening 402 is formed in the electronic equipment, the position of the opening 402 is set according to the requirements of the electronic equipment, the size of the opening 402 is set according to the size of the mounted lens 401, and the number of the openings 402 is set according to the number of the set camera modules.
The electronic equipment can be provided with one or more camera modules, when one camera module is arranged, the electronic equipment is provided with an open hole 402 for mounting the lens 401, when the plurality of camera modules are arranged, the electronic equipment is provided with a plurality of open holes 402 for mounting the lens 401, and the number of the open holes 402 is equal to that of the camera modules.
In one possible implementation, the electronic device includes a housing 403, the material of the housing 403 may be metal or glass, and the interior of the housing 403 forms an inner cavity in which various electronic devices may be disposed.
Thus, step 301 may include any of the following:
the electronic device without the housing is reserved with a preset space for placing the lens 401 and an opening 402 opposite to the preset space, the lens 401 is placed in the preset space, the housing 403 is placed on the upper side of the lens 401, and the electronic device, the lens 401 and the housing 403 are fixedly connected to complete the installation of the lens 401 and the housing 403.
Or, configuring the housing 403 on the electronic device, where the housing 403 is provided with the opening 402, and a preset space for placing the lens 401 is reserved in an inner cavity formed by the housing 403, where the preset space is opposite to the opening 402, placing the lens 401 in the preset space through the opening 402, and fixedly connecting the lens 401 and the housing 403, so as to complete the installation of the lens 401.
Regarding the connection manner of the lens 401 and the housing 403, in a possible implementation manner, an adhesive material 404 is disposed on the lower side of the housing 403, and the lens 401 and the housing 403 are connected through the adhesive material 404, so that the lens 401 and the housing 403 are fixedly connected, and the lens 401 is fixed on the body of the electronic device. The adhesive material 404 may be foam cotton or gum.
302. The lens 405 is mounted within the first retainer 406 to form a lens assembly.
Wherein, a silk-screen hole 407 is provided on the lens 405, and before the lens 405 is mounted, ink is printed on the lens 405 through the silk-screen hole 407, so as to obtain the lens 405 for mounting.
In one possible implementation, the lens 405 may be made of glass or other materials.
Regarding the manner of connection of the lens 405 to the protective collar 406, in one possible implementation, the first protective collar 406 comprises a first portion and a second portion, the angle formed between the first portion and the second portion being greater than 0 degrees and less than 180 degrees, the underside of the lens 405 being filled with an adhesive material; the lens 405 is mounted within the first retainer 406 such that the first portion is disposed outside of the lens 405 and the second portion is disposed below the lens 405, the lens 405 being bonded to the second portion of the first retainer 406 by an adhesive material 408 filled on the underside. The adhesive material 408 may be foam adhesive or backing adhesive.
In addition, when a plurality of camera modules are provided on the electronic apparatus, if each lens 401 is provided with a separate lens 405, a plurality of first retainer rings 406 are provided, the number of the plurality of first retainer rings 406 is the same as the number of the plurality of lenses 401, and each lens 405 is mounted in the corresponding first retainer ring 406; if a plurality of lenses 401 share a lens 405, a first retainer 406 is provided, and a corresponding number of screen holes 407 are provided in the shared lens 405.
303. By shooting the lens 401, a lens image is obtained and sent to the processing unit.
The CCD device is provided with a camera for taking an image, the lens 401 is taken by the camera, and the obtained lens image is sent to the processing unit.
In one possible implementation manner, a platform for placing the lens 401 is disposed on the CCD device, the mounted lens 401 is fixed on the platform, and a lens image is obtained by shooting the lens 401.
When a plurality of camera modules are arranged on the electronic equipment, each lens 401 needs to be shot, if each lens 401 is provided with an individual lens 405, each lens 401 is shot in sequence, and an individual image of each lens 405 is obtained; if a plurality of lenses 401 share one lens 405, the plurality of lenses 401 are photographed, and the resulting lens image includes the plurality of lenses 401.
The CCD equipment is also provided with a processing unit, and the processing unit is connected with the camera. The camera sends the shot lens image to the processing unit, and the processing unit carries out subsequent processing on the received lens image. The processing unit and the camera can be connected through a data line, a wireless communication mode or other modes.
304. By photographing the lens 405, a lens image is obtained and sent to the processing unit.
The CCD device is provided with a camera for taking an image, and the lens 405 is taken by the camera and the obtained lens image is sent to the processing unit. The camera for taking the lens 405 may be the same as or different from the camera for taking the lens 401 in step 303.
In one possible implementation, a platform for placing the lens 405 is disposed on the CCD device, the lens 405 is fixed, a lens image is obtained by shooting the lens 405, and the lens image is sent to the processing unit.
When a plurality of camera modules are arranged on the electronic equipment, if each lens 401 is provided with an individual lens 405, each lens 405 is shot in sequence; if a lens 405 is shared by a plurality of lenses 401, the lens 405 is photographed, and the resulting lens image includes the complete lens 405.
In another possible implementation, the camera takes a picture of the lens assembly, resulting in an image of the lens assembly, the image comprising a lens image, which is sent to the processing unit, which extracts the lens image from the image.
The CCD equipment is also provided with a processing unit, and the processing unit is connected with the camera. The camera sends the shot lens image to the processing unit, and the processing unit carries out subsequent processing on the received lens image. The processing unit and the camera can be connected through a data line, a wireless communication mode or other modes.
It should be noted that the camera configured on the CCD device is used for shooting in the assembling process, and the camera module obtained by the assembling of the embodiment of the present disclosure is also obtained, and the camera module obtained by the assembling is different from the camera configured on the CCD device.
305. The processing unit receives the lens image and the lens image, identifies the lens image to obtain a first contour track, and identifies the lens image to obtain a second contour track.
And the processing unit on the CCD equipment is used for identifying the received image, identifying a circle in the image, and extracting the circle from the image to obtain a contour track of the circle. And fitting and calculating the obtained contour track to obtain the circle center of the contour track, and further determining the position of the circle center of the contour track on the CCD equipment.
In a possible implementation manner, the lens image is identified to obtain a contour track of the lens 401, that is, a first contour track, and a circle center of the first contour track is determined according to a fitting algorithm to obtain a position of the circle center of the lens on the CCD device. And identifying the lens image to obtain a contour track of the silk-screen hole on the lens 405, namely a second contour track, determining the circle center of the second contour track according to a fitting algorithm, and obtaining the position of the circle center of the lens on the CCD equipment. And determining the distance between the two circle centers according to the circle center of the first contour track and the circle center of the second contour track.
When a plurality of camera modules are arranged on the electronic device, if each lens 401 is provided with an individual lens 405, contour tracks of the plurality of lenses 401 are obtained, the circle center position of each lens 401 is obtained respectively, contour tracks of the silk-screen holes 407 on each lens 405 are obtained, and the circle center position of each silk-screen hole 407 is obtained respectively. And determining the distance between the circle center of the silk-screen hole 407 on each lens 405 and the circle center of the corresponding lens 401 according to the circle center position of each lens 401 and the circle center position of the silk-screen hole 407.
If a plurality of lenses 401 share one lens 405, contour tracks of the plurality of lenses 401 are obtained, the position of the center of a circle of each lens 401 is obtained, the contour tracks of the plurality of lenses 401 are fitted by adopting a fitting algorithm, and a fitting reference point for mounting the lens 405 is determined on a structure formed by the plurality of lenses 401. Using a fitting algorithm, reference points corresponding to the above-mentioned fitted reference points are determined on the lens 405 so as to perform mounting according to the two determined reference points. When calculating the fitting reference point, corresponding weighting calculation can be performed according to the requirements of different camera modules on the screen printing hole 407, and the weighting proportion can be set as required.
For example, different camera modules have different requirements on eccentricity, and in the case that a plurality of lenses 401 share one lens 405, the assembling processes of the plurality of camera modules affect each other, and at this time, the camera modules with higher requirements on eccentricity can be assembled in the first place.
For example, the wide-angle camera module has a large field angle, and therefore the requirements of the wide-angle camera module are met firstly; compared with a fixed-focus camera module, the zoom camera module has higher requirements on the screen printing hole 407, so that the requirements of the zoom camera module are met firstly; the main camera module is more important than the auxiliary camera module, and therefore the requirement of the main camera module is met firstly.
306. And controlling the grabbing device to move according to the distance between the circle center of the first contour track and the circle center of the second contour track, driving the lens assembly grabbed by the grabbing device to move, and installing the lens assembly above the lens 401.
And a grabbing device is arranged on the CCD equipment and used for grabbing the lens and driving the lens to move so as to realize the installation of the lens. Wherein, the gripping device can be a gripper or a sucker or the like. And the grabbing device is connected with the processing unit, and the processing unit controls the movement of the grabbing device to drive the lens to move.
Therefore, the processing unit controls the grabbing device grabbing the lens to move according to the distance between the circle center of the first contour track and the circle center of the second contour track, so that the circle centers of the silk-screen holes 407 and the circle center of the lens 401 coincide on the same axis, and then controls the grabbing device to move downwards, so that the lens assembly is mounted above the lens 401, and the first protection ring 406 is located above the housing 403.
When a plurality of camera modules are arranged on the electronic equipment, if each lens 401 is provided with an individual lens 405, the processing unit controls the gripping device to sequentially mount the plurality of lenses according to the distance between each lens 401 and the circle center of the silk-screen hole 407 on the corresponding lens 405; if a plurality of lenses 401 share a lens 405, the processing unit controls the gripping device to mount the lens according to the determined reference point.
It should be noted that, in the present embodiment, the lens assembly is taken as an example for description, and in the process of installing the lens, the lens assembly is grasped by the grasping device. In another embodiment, step 302 may not be executed, and the gripping device directly grips the lens in step 306 to drive the lens to move, so as to mount the lens above the lens.
Regarding the connection between the housing 403 and the first retainer 406, in one possible implementation, an adhesive material 409 is provided on the underside of the first retainer 406, and the first retainer 406 is connected to the housing 403 by the adhesive material 409. The adhesive 409 may be foam adhesive or backing adhesive.
In the assembly process of camera module, when adopting bonding material to connect between each part, probably not fully bond between each part of camera module, consequently, can adopt pressurizer to carry out the pressurize to the camera module, make and to realize effectively bonding between each subassembly of camera module.
For example, compared with the camera module in the related art, due to the structural change of the camera module in the embodiment of the disclosure, in the installation process, the thickness of the protection ring is reduced by 0.3 mm, the space occupied by the adhesive material connecting the housing and the protection ring is reduced by 0.2 mm, and when the camera module in the embodiment of the disclosure is applied to the electronic device, the thickness of the camera module can be reduced by 0.5 mm at the position of the camera module.
The method provided by the embodiment of the disclosure includes the steps of installing a lens in an opening on an electronic device, installing a lens in a first protection ring to form a lens assembly, obtaining a lens image and a lens image by shooting the lens and the lens, sending the lens image and the lens image to a processing unit, receiving the lens image and the lens image by the processing unit, identifying the lens image to obtain a first contour track, identifying the lens image to obtain a second contour track, controlling a grabbing device to move according to the distance between the circle center of the first contour track and the circle center of the second contour track, driving the lens grabbed by the grabbing device to move, and installing the lens above the lens. In the assembling process, the camera module is directly assembled according to the circle center of the outline track of the lens and the circle center of the outline track of the silk screen hole, the camera module obtained by assembling cannot be influenced by the middle assembling steps, the assembling tolerance is avoided as far as possible, and the eccentricity of the camera module is reduced.
Moreover, in the related art, because the camera module has larger eccentricity to cause poor vision, super black is arranged outside the screen printing hole of the lens in a printing ink printing mode to shield the structure inside the lens, so that the problem of poor vision is improved, and the production cost is increased. In the embodiment of the disclosure, the eccentricity is reduced, and the problem of poor vision of the position of the camera is improved, so that super black does not need to be arranged on the periphery of the lens, and the production cost is reduced.
As shown in fig. 4, the camera module assembled by the assembly method shown in fig. 3 includes: the lens comprises a lens 401 and a lens 405, wherein a silk-screen hole 407 is formed in the lens 405; the lens 405 is installed above the lens 401, so that the center of the screen printing hole 407 coincides with the center of the lens 401.
In one possible implementation, the electronic device includes a housing 403 having an aperture 402 disposed therein, the lens being mounted in the aperture 402.
In another possible implementation, the lens 405 is mounted within the first retainer 406, constituting an optical assembly, which is mounted over the lens 401, and the first retainer 406 is located over the housing 403.
In another possible embodiment, an adhesive material 408 is provided on the underside of the lens 405, by means of which adhesive material 408 the lens 405 is adhered to the first retaining ring 406.
In another possible implementation, the first retainer 406 includes a first portion and a second portion, the angle formed between the first portion and the second portion is greater than 0 degrees and less than 180 degrees, the first portion is disposed outside the lens 405, and the second portion is disposed below the lens 405 and is bonded to the lens 405 by the bonding material 408.
Fig. 5 is a flowchart illustrating an assembly method of a camera module according to an exemplary embodiment, and fig. 6 is a schematic structural diagram illustrating a camera module according to an exemplary embodiment, where the camera module includes a lens and a lens, as shown in fig. 5 and 6, the assembly method is applied to a CCD device, and the method includes:
501. the lens assembly is mounted in an aperture on the electronic device.
The lens 601 is fixedly connected with the second protective ring 602 to form a lens assembly, and the lens assembly is installed in an opening of the electronic device. The lens 601 and the second protective ring 602 may be connected by an adhesive material, which may be foam adhesive or back adhesive.
In one possible implementation, the electronic device is provided with a lens mount, the lens 601 is mounted in the lens mount, and the second protective ring 602 is fixedly connected with the lens mount to form the lens assembly.
Regarding the connection manner of the lens 601 and the second protection ring 602, in a possible implementation manner, the second protection ring 602 includes a first portion and a second portion, an angle formed between the first portion and the second portion is greater than 0 degree and less than 180 degrees, the first portion is connected with the lens 601, and the second portion is located below the housing 603 and fixedly connected with the housing 603.
In a possible implementation, in the case where the electronic device is provided with a lens mount, the underside of the first portion is provided with an adhesive material by which it is fixedly connected with the lens mount.
Other embodiments are similar to the embodiment of step 301 in the above embodiment.
502. By shooting the lens 601, a lens image is obtained and sent to the processing unit.
The embodiment is similar to the embodiment of step 303 in the foregoing embodiment, except that in the embodiment of the present disclosure, when the lens 601 is shot, the lens assembly is actually shot to obtain an image of the lens assembly, the image includes a lens image, the image is sent to the processing unit, and the processing unit extracts the lens image from the image.
503. By photographing the lens 604, a lens image is obtained and sent to the processing unit.
The implementation is similar to that of step 304 in the above-described embodiment.
504. The processing unit receives the lens image and the lens image, identifies the lens image to obtain a first contour track, and identifies the lens image to obtain a second contour track.
The implementation is similar to that of step 305 in the above example.
505. According to the distance between the circle center of the first contour track and the circle center of the second contour track, the grabbing device is controlled to move, the lens 604 grabbed by the grabbing device is driven to move, and the lens 604 is installed above the lens 601.
The implementation is similar to the implementation of step 306 in the above embodiment, except that in the embodiment of the present disclosure, when the lens 604 is installed, the lens 604 is actually installed above the lens assembly, so that the lens 604 is located above the lens 601.
506. A third protection ring 605 is sleeved on the outer side of the lens 604, so that the third protection ring 605 is located above the second protection ring 602.
In one possible implementation, the outside of the lens 604, above the second protective ring 602, is filled with an adhesive material 6010. A third protection ring 6010 is fitted around the outer side of the lens 604, and the third protection ring 605 is bonded to the lens 604 and the second protection ring 602 by an adhesive material 6010. The adhesive 609 may be foam adhesive, backing adhesive, or dispensing adhesive, etc. As shown in fig. 7, when the lens 604 is set, a gap 701 between portions of the second protection ring 602 and the third protection ring 605 which are directly in contact with each other should be 0 mm, so that the third protection ring 605 can be prevented from pressing the lens 604. The size of the gap 702 is between 0.15 mm and 0.2 mm, which can ensure sufficient adhesion of the adhesive material 6010. The gap 703 may be greater than 0.3 mm, which may ensure that the lens 604 has enough space to move left and right for adjustment during installation, reduce eccentricity, and also ensure effective adhesion between the outer side of the lens 604 and the third protective ring 605.
In one possible implementation, an adhesive material is disposed on the lower side of the third protective ring 605, and the third protective ring 605 is adhered to the upper side of the lens 604 by the adhesive material. Wherein, the adhesive material can be foam cotton glue or gum. When the lens 604 is assembled, the thickness of the adhesive material may be set to be greater than 0.1 mm, and when the third protective ring 605 presses the lens 604, the lens 604 may have a buffering effect, so as to reduce the risk of breaking the lens 604.
In addition, when the third protection ring 605 is fitted, since the fitting of the third protection ring 605 does not affect the positional relationship between the lens 601 and the lens 604, and the installation of the third protection ring 605 does not affect the eccentricity, the third protection ring 605 can be fitted by the CCD device, or can be fitted manually.
In the assembly process of camera module, when adopting bonding material to connect between each part, probably not fully bond between each part of camera module, can adopt pressurizer to carry out the pressurize to the camera module, can realize effectively bonding between each subassembly of messenger's camera module.
When a plurality of camera modules are provided and a plurality of lenses share one lens, the assembling method of the camera modules is similar to that in the embodiment.
For example, fig. 8 is an assembly diagram of a multi-camera module, which is shown in fig. 8, and includes a second protection ring 602, a lens 604 and a third protection ring 605 from top to bottom.
The second guard ring 602 has a plurality of positioning holes 607. The three lenses 601 share one lens 604, so that three silk-screen holes are formed in the lens 604. A plurality of positioning posts 608 are disposed on the third protective ring 605, and the positions of the positioning posts 608 are matched with the positions of the positioning holes 607.
When assembling, the lens 601 is installed in the second protective ring 602, the lens 601 and the second protective ring 602 are installed in the opening of the electronic device, the lens 604 is installed above the lens 601 along the arrow direction shown in fig. 8, and finally the positioning post 608 on the third protective ring 605 is inserted into the positioning hole 607 on the second protective ring 602, so as to connect the second protective ring 602 and the third protective ring 605, and complete the assembling of the camera module.
For example, in the related art, as shown in fig. 9, a larger eccentric distance exists between a circle center 902 of a lens outline 901 and a circle center 904 of a silk-screen hole outline 903, which results in a larger eccentricity of a camera module, and in order not to affect a shooting function of the camera module, when a silk-screen hole is formed, the size of the silk-screen hole is 0.2 mm larger than that of a field angle of the lens, and the larger the size of the silk-screen hole is, the easier the structure inside the electronic device is seen, and poor vision is generated. By adopting the assembling method in the embodiment of the disclosure, the eccentricity of the camera module can be reduced, and the distance between the size of the silk screen hole and the size of the field angle of the lens can be reduced to be less than 0.1 mm, so that the size of the silk screen hole is reduced, and poor vision is improved.
The method provided by the embodiment of the disclosure includes the steps of installing a lens component in an opening on electronic equipment, obtaining lens images and lens images by shooting a lens and lenses, receiving the lens images and the lens images by a processing unit, identifying the lens images to obtain a first contour track, identifying the lens images to obtain a second contour track, controlling a grabbing device to move according to the distance between the circle center of the first contour track and the circle center of the second contour track, driving the lenses grabbed by the grabbing device to move, installing the lenses above the lens, and sleeving a third protective ring outside the lenses to enable the third protective ring to be located above the second protective ring. In the assembling process, the camera module is directly assembled according to the circle center of the outline track of the lens and the circle center of the outline track of the silk screen hole, the camera module obtained by assembling cannot be influenced by the middle assembling steps, the assembling tolerance is avoided as far as possible, and the eccentricity of the camera module is reduced.
For example, in the embodiment of the present disclosure, when the CCD device is used for assembling, the eccentricity of the camera module can be reduced to 0.05 mm according to the assembling precision of the CCD device. If the assembly of a plurality of camera modules, when every camera lens is provided with solitary lens, the assembly mode is the same with the assembly mode of single camera module, and the eccentricity can reduce to 0.05 millimeter, when a plurality of camera lenses share a lens, compare with the assembly method among the correlation technique, still can effectively reduce the eccentricity of camera module.
As shown in fig. 6, the camera module assembled by the assembly method shown in fig. 5 includes: the lens comprises a lens 601 and a lens 604, wherein a silk-screen hole 606 is formed in the lens 604; the lens 604 is installed above the lens 601, so that the center of the screen printing hole 606 coincides with the center of the lens 601.
In one possible implementation, the electronic device includes a housing 603, and the housing 603 has an opening disposed therein, and the lens 601 is mounted in the opening.
In another possible implementation manner, the second protective ring 602 is disposed outside the lens 601 to form a lens assembly, and the lens assembly is installed in the opening.
In another possible implementation manner, a third protection ring 605 is sleeved on the outer side of the lens 604, and the third protection ring 605 is located above the second protection ring 602.
In another possible implementation, an adhesive material is disposed on the outer side of the lens 604 and above the second protective ring 602, and the third protective ring 605 is adhered to the lens 601 and the second protective ring 602 by the adhesive material.
In the embodiments of the present disclosure, the lens and the lens are placed in the horizontal direction, the horizontal direction is used as a reference to distinguish the inside and the outside, and the vertical direction is used as a reference to distinguish the upper and the lower. For example, as shown in fig. 4 and 6, the third bezel 605 is positioned outside the lens 604 and the third bezel 605 is positioned above the second bezel 602. Of course, the embodiments of the present disclosure are merely exemplary, and in other embodiments, the upper side and the lower side may be distinguished with reference to the horizontal direction, the inner side and the outer side may be distinguished with reference to the vertical direction, or other manners may be used.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (11)
1. An assembling method of a camera module, wherein the camera module comprises a lens and a lens, the method comprising:
acquiring a contour track of the lens as a first contour track by shooting the lens;
acquiring a contour track of a silk-screen hole on the lens as a second contour track by shooting the lens;
and under the condition of keeping the position of the lens fixed, controlling the lens to move according to the distance between the circle center of the first contour track and the circle center of the second contour track, and installing the lens above the lens to enable the circle center of the screen printing hole to be coincident with the circle center of the lens.
2. The method of claim 1, further comprising:
and the lens is arranged in the opening of the electronic equipment.
3. The method of claim 2, wherein the electronic device comprises a housing having the aperture disposed therein.
4. The method of claim 3, further comprising: mounting the lens in a first retainer ring to form a lens assembly;
the mounting the lens above the lens comprises: and the lens assembly is arranged above the lens, so that the circle center of the silk-screen hole is superposed with the circle center of the lens, and the first protection ring is positioned above the shell.
5. The method of claim 4, wherein the first retainer comprises a first portion and a second portion, the first portion and the second portion forming an angle therebetween that is greater than 0 degrees and less than 180 degrees;
the will the lens is installed in first protection ring, constitutes the lens subassembly, includes:
filling an adhesive material on the lower side of the lens;
and mounting the lens in the first retaining ring, so that the first part is sleeved outside the lens, and the second part is positioned below the lens and is bonded with the lens through the bonding material.
6. The method of claim 2, wherein the mounting the lens in an aperture on an electronic device comprises:
sleeving a second protective ring on the outer side of the lens to form a lens assembly;
and installing the lens assembly in the opening.
7. The method of claim 6, further comprising:
and a third protective ring is sleeved on the outer side of the lens, so that the third protective ring is positioned above the second protective ring.
8. The method of claim 7, wherein the step of positioning a third bezel over the second bezel comprises:
filling an adhesive material on the outer side of the lens and above the second protective ring;
and the third protective ring is sleeved on the outer side of the lens, so that the third protective ring is bonded with the lens and the second protective ring through the bonding material.
9. The method of claim 1, further comprising:
and maintaining the pressure of the assembled camera module.
10. The method according to claim 1, wherein the method is applied to a Charge Coupled Device (CCD) device comprising a camera, a processing unit and a movable gripping device, the camera being connected to the processing unit and the processing unit being connected to the gripping device;
the camera is used for shooting the lens to obtain a lens image and sending the lens image to the processing unit;
the camera is also used for shooting the lens to obtain a lens image and sending the lens image to the processing unit;
the processing unit is used for receiving the lens image and the lens image, identifying the lens image to obtain the first contour track, and identifying the lens image to obtain the second contour track;
the processing unit is further configured to control the grabbing device to move according to a distance between a circle center of the first profile track and a circle center of the second profile track, drive the lens grabbed by the grabbing device to move, and mount the lens above the lens, so that the circle center of the screen printing hole coincides with the circle center of the lens.
11. A camera module, characterized in that the camera module comprises a lens and a lens, and the camera module is assembled by the assembly method according to any one of claims 1 to 10.
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| CN201911051989.8A CN112751997B (en) | 2019-10-31 | 2019-10-31 | Camera module and assembling method |
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| CN201911051989.8A CN112751997B (en) | 2019-10-31 | 2019-10-31 | Camera module and assembling method |
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