CN114500815A - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
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- CN114500815A CN114500815A CN202210252465.0A CN202210252465A CN114500815A CN 114500815 A CN114500815 A CN 114500815A CN 202210252465 A CN202210252465 A CN 202210252465A CN 114500815 A CN114500815 A CN 114500815A
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- 230000002093 peripheral effect Effects 0.000 claims description 15
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- 238000007789 sealing Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000007650 screen-printing Methods 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
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Classifications
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
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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
- H04N23/51—Housings
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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
Abstract
A camera module and electronic equipment, the camera module includes the body, locating element, lens and window cover plate, the window cover plate is covered and located the body and form the volume, lens and locating element are all located in the volume, the window cover plate has window holes, the light-admitting end of the lens is connected with locating element and opposite to window hole, another end is connected with body; the positioning piece is fixed on the window cover plate, so that the extension line of the optical axis of the camera passes through the center point of the window hole. Through setting up the setting element, window apron and camera are connected to the setting element for the extension line of the optical axis of camera is through looking the central point of fenestra, and the eccentricity of camera only is relevant with the position tolerance of setting element and window apron and the position tolerance of setting element and camera, because the setting element is controlled with the assembly precision of window apron and camera easily, makes the eccentricity of camera less, and the optical axis of camera is higher with the concentricity precision of looking the central point of fenestra.
Description
Technical Field
The utility model belongs to the optical imaging field especially relates to a module of making a video recording and electronic equipment who has this module of making a video recording.
Background
Along with the development of electronic products, more and more electronic products all have the module of making a video recording to satisfy the demand of people to shooing. People are constantly improving to the requirement of the appearance delicacy degree of electronic product, and the eccentric quantity of camera has influenced people to electronic product's visual experience to a certain extent in the module of making a video recording. The eccentricity of the camera is the coaxiality between the camera and the window hole, and is a difficult point for engineers to solve the problems.
At present, a common design method is to mount the camera and the window cover on the housing at the same time, and the dimension chain of the positional deviation of the camera relative to the window cover includes the positional tolerance of the window cover screen printing process, the positional tolerance of the window cover mounted on the housing, and the positional tolerance of the camera mounted on the housing. Because the parts connected with the shell are numerous, the assembly precision of the shell, the window cover plate and the camera is not easy to guarantee, and the eccentricity is overlarge.
Disclosure of Invention
In a first aspect, the present disclosure provides a camera module, which includes a housing, a positioning element, a camera and a window cover plate, wherein the window cover plate is covered on the housing to form a cavity, the camera and the positioning element are both arranged in the cavity, the window cover plate is provided with a window hole, one end of the camera for light entering is connected with the positioning element and opposite to the window hole, and the other end of the camera is connected with the housing; the positioning piece is fixed on the window cover plate so that the extension line of the optical axis of the camera passes through the center point of the window hole. Through setting up the setting element, window apron and camera are connected to the setting element for the extension line of the optical axis of camera is through looking the central point of fenestra, and the eccentricity of camera only is relevant with the position tolerance of setting element and window apron and the position tolerance of setting element and camera, and is irrelevant with the casing, because the setting element is controlled easily with the assembly precision of window apron and camera, makes the eccentricity of camera less, and the optical axis of camera is higher with the concentricity precision of looking the central point of fenestra.
In one embodiment, the positioning member is provided with a mounting hole, the camera is accommodated in the mounting hole, and an axis of the mounting hole passes through a center point of the window hole. Through setting up the mounting hole to reduce the position tolerance of window apron and setting element.
In one embodiment, the locating piece is circular, the mounting hole is a circular through hole, the inner wall of the mounting hole is attached to the outer peripheral wall of the camera, and the outer peripheral wall of the locating piece is spaced from the shell. The mounting hole of circular through-hole form is conveniently connected with the camera.
In one embodiment, the positioning element includes a plurality of sub-positioning elements, the sub-positioning elements are distributed around the viewing window hole, the sub-positioning elements surround to form an accommodation space, a central line of the accommodation space passes through a central point of the viewing window hole, the camera is accommodated in the accommodation space and fixed by the sub-positioning elements, and an optical axis of the camera coincides with the central line. The plurality of sub-positioning pieces are arranged, so that the disassembly is convenient, and the maintainability is strong.
In one embodiment, the camera module further comprises a sealing element, and the sealing element is arranged between the camera and the window cover plate. Through setting up the sealing member, can effectively dustproof and waterproof, be favorable to guaranteeing the image quality of camera.
In one embodiment, the casing includes center and back lid, the back lid includes bottom plate and curb plate, the curb plate is connected the one end of bottom plate, the curb plate with the center is connected, the window apron with the center is connected, the one end of keeping away from of camera the window apron with the bottom plate is connected. Through setting up center and back lid, be favorable to simplifying the assembly process of the module of making a video recording.
In one embodiment, the middle frame is provided with a through hole, and the positioning piece is accommodated in the through hole. The through hole is arranged so as to accommodate the camera.
In one embodiment, the outer circumferential wall of the positioning element is spaced apart from the inner wall of the through hole. The spacing distance is set, the position of the positioning piece on the middle frame can be adjusted, and the window cover plate is connected with the middle frame conveniently.
In one embodiment, the positioning element includes a first end surface facing the window cover plate, the window cover plate includes a first surface opposite to the positioning element, and the first end surface and the first surface have corresponding shapes. The shape of the first end face corresponds to that of the first surface, and the alignment connection between the window cover plate and the positioning piece is facilitated.
In a second aspect, the present disclosure further provides an electronic device, where the electronic device includes the camera module described in any one of the embodiments of the first aspect. Through add the module of making a video recording that this disclosure provided in electronic equipment, because the eccentric quantity of camera is less, electronic equipment is comparatively pleasing to the eye.
In a third aspect, the present disclosure further provides a method for manufacturing a camera module, where the method includes: a window hole is formed in the window cover plate; positioning pieces are arranged at the corresponding positions of the window holes; and connecting the camera with the positioning piece, so that the light entering end of the camera is opposite to the window hole, and the extension line of the optical axis passes through the central point of the window hole. Through set up the setting element on the corresponding position in window hole, can effectively shorten position deviation size chain to reduce the eccentric volume of camera, improved the precision of concentricity.
In one embodiment, a positioning member is disposed at a position corresponding to the window hole, and the positioning member includes: aligning the positioning piece to the window cover plate by a CCD (charge coupled device) photographing process so that the center line of the positioning piece passes through the center point of the window hole; and fixing the positioning piece on the window cover plate. The CCD photographic process has higher precision, and can effectively reduce the position tolerance of the positioning piece and the window cover plate.
In one embodiment, aligning the positioning element to the viewing window cover plate by a CCD photographic process such that a center line of the positioning element passes through a center point of the viewing window hole comprises: and arranging a mounting hole on the positioning piece, and enabling the axis of the mounting hole to pass through the central point of the window hole. The installation hole is formed in the positioning piece, so that the camera can be conveniently installed, the characteristic position can be conveniently captured by a CCD (charge coupled device) photographing process, and the position tolerance of the positioning piece and the window cover plate can be further reduced.
In one embodiment, connecting the camera with the positioning member so that the light entering end of the camera is opposite to the viewing window and the extension line of the optical axis passes through the center point of the viewing window comprises: will the periphery wall of camera with the inner wall laminating of mounting hole, and will the optical axis of camera with the axis coincidence of mounting hole. The outer peripheral wall of the camera is attached to the inner wall of the mounting hole, so that the position tolerance of the camera and the outer peripheral wall is small; the optical axis of the camera is overlapped with the axis of the mounting hole, so that the extension line of the optical axis passes through the center point of the window hole.
In one embodiment, a positioning member is disposed at a position corresponding to the window hole, and the positioning member includes: and arranging a plurality of sub-positioning pieces around the window hole, so that the center line of the accommodating space formed by enclosing the plurality of sub-positioning pieces passes through the center point of the window hole. The center line of the containing space formed by enclosing the plurality of sub-positioning pieces passes through the center point of the window hole, so that the position tolerance of the positioning piece and the window cover plate is reduced, and the concentricity precision is further improved.
In one embodiment, connecting the camera with the positioning member so that the light entering end of the camera is opposite to the viewing window and the extension line of the optical axis passes through the center point of the viewing window comprises: the camera is fixed in the accommodating space through the plurality of sub-positioning pieces, and the optical axis of the camera is coincided with the central line of the accommodating space. The camera is fixed in the accommodating space through the sub-positioning pieces, and the optical axis of the camera is overlapped with the central line of the accommodating space.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic cross-sectional structure diagram of a camera module according to an embodiment;
fig. 2 is a schematic cross-sectional structure diagram of a camera module in the prior art;
FIG. 3 is a schematic cross-sectional view of a positioning member according to an embodiment;
FIG. 4 is a schematic perspective view of a positioning element, a camera and a window cover according to an embodiment;
FIG. 5 is a schematic perspective view of the positioning member and the window cover of FIG. 4;
FIG. 6 is a schematic perspective view of a positioning element, a camera and a window cover according to another embodiment;
FIG. 7 is a schematic perspective view of a positioning element, a camera and a window cover according to another embodiment;
FIG. 8 is a schematic flow chart illustrating a method for manufacturing a camera module according to an embodiment;
fig. 9 is a flowchart illustrating step S102 of fig. 8.
Detailed Description
Technical solutions in embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Referring to fig. 1, an embodiment of the present disclosure provides a camera module 100, where the camera module 100 may be applied to an authentication device, an electronic device such as a tablet computer, a smart phone, a personal digital assistant, and a digital reader, and is particularly suitable for a front camera function of the electronic device. The camera module 100 includes a housing 10, a positioning member 20, a camera 30 and a window cover 40. The window cover 40 is disposed on the housing 10 to form a cavity 101, and the camera 30 and the positioning element 20 are disposed in the cavity 101. The window cover 40 is provided with a window hole 401, one end of the camera 30 for light entering is connected with the positioning piece 20 and is opposite to the window hole 401, and the other end of the camera 30 is connected with the shell 10. The positioning member 20 is fixed to the window cover 40 such that an extension line of the optical axis 301 of the camera 30 passes through the center point 4011 of the window hole 401. The viewing window 401 is preferably a circular through hole or a circular groove and is disposed on a surface of the viewing window cover 40 facing away from the positioning member 20. Since the depth of the viewing window 401 is small and can be regarded as a circle, the eccentricity, that is, the offset distance, that is, the concentricity, of the optical axis 301 from the center point 4011 of the viewing window 401.
By arranging the positioning member 20, the positioning member 20 is connected with the window cover plate 40 and the camera 30, so that the extension line of the optical axis 301 of the camera 30 passes through the central point 4011 of the window hole 401, the eccentricity of the camera 30 is only related to the position tolerance of the positioning member 20 and the window cover plate 40 and the position tolerance of the positioning member 20 and the camera 30, but is irrelevant to the housing 10, because the assembly accuracy of the positioning member 20, the window cover plate 40 and the camera 30 is easy to control, the eccentricity of the camera 30 is small, and the concentricity accuracy of the optical axis 301 of the camera 30 and the central point 4011 of the window hole 401 is high.
In the prior art, referring to fig. 2, the camera 210 and the window cover 230 of the camera module 200 are both connected to the housing 220, wherein the camera 210 is accommodated in the through hole 2200 of the housing 220 and fixed relative to the housing 220. In one aspect, the window cover 230 has a tolerance with respect to the position of the housing 220, which requires a high precision in manufacturing the housing 220. On the other hand, because the position of the window hole 2300 is determined by the screen printing process of the window cover 230, and the window hole 2300 has a position tolerance on the window cover 230, the screen printing precision requirement on the window cover 230 is also high. Moreover, the mating surfaces of the camera 210 and the housing 220 and the mating surfaces of the window cover 230 and the housing 220 are different, so that the mating surfaces have a position tolerance, and the requirement for manufacturing accuracy of the housing 220 is further increased. Therefore, the dimension chain of the position deviation of the camera 210 relative to the window cover 230 includes the position tolerance of the window cover 230 in the screen printing process, the position tolerance of the window cover 230 mounted on the housing 220, and the position tolerance of the camera 210 mounted on the housing 220. It can be seen that the position deviation dimension chain in the design is too long, and in the product development, in order to reduce the eccentricity of the camera 210, the manufacturing tolerance of each component is often controlled by tightening, and the design gap at each assembly limit is reduced, so that the requirements on the manufacturing precision and the assembly precision of each component are extremely high. The current manufacturing capability of the industry can only control the eccentricity between the optical axis of the camera 210 and the central point of the window 2300 within 0.2 mm. Referring to fig. 1, in the camera module 100 provided by the present disclosure, the eccentricity between the optical axis 301 of the camera 30 and the central point 4011 of the window hole 401 can be controlled within 0.05mm, and the concentricity accuracy is higher.
In one embodiment, referring to fig. 1 and 3, the positioning element 20 is provided with a mounting hole 201, the camera 30 is accommodated in the mounting hole 201, and an axis 2011 of the mounting hole 201 passes through the central point 4011 of the viewing window 401. Specifically, the mounting hole 201 may be a circular hole, a square hole, or a through hole with other shapes, preferably a circular hole, so as to accommodate the cylindrical camera 30. It will be appreciated that the positioning member 20 is then retained to the window cover 40 by aligning the center point 4011 of the window aperture 401 and the axis 2011 of the mounting aperture 201 through a CCD photographic process. Due to the high accuracy of the CCD photographic process, the positional tolerance between the center point 4011 of the viewing aperture 401 and the axis 2011 of the mounting aperture 201 is negligible, which corresponds to the axis 2011 of the mounting aperture 201 passing through the center point 4011 of the viewing aperture 401. The positioning member 20 may be fixed to the window cover 40 by dispensing or gluing. Through seting up mounting hole 201 at setting element 20, counterpoint mounting hole 201 and window hole 401 for the axis 2011 of mounting hole 201 passes through the central point 4011 of window hole 401, thereby has shortened the position deviation size chain of camera 30 and window apron 40, so that reduce the eccentric amount of optical axis 301 of camera 30 and the central point 4011 of window hole 401, be favorable to further improving the precision of concentricity. In addition, the position deviation dimension chain of the camera 30 and the window cover plate 40 is shortened, so that the manufacturing precision requirement of the shell 10 and the silk-screen printing process precision requirement of the window cover plate 40 are reduced, and the process cost is reduced.
In some embodiments, the camera 30 may have other shapes such as a triangular prism, a quadrangular prism, a pentagonal prism, and the like, and the mounting holes 201 correspond to a triangular hole, a quadrangular hole, and a pentagonal hole. The camera 30 may also be irregularly shaped, and the mounting holes 201 may also be correspondingly irregular holes. Of course, the shape of the mounting hole 201 may not correspond to the shape of the camera 30, for example, the mounting hole 201 is an elliptical hole, the camera 30 is cylindrical, and the camera 30 can be fixed in the radial direction when being arranged in the mounting hole 201 as long as the size design is reasonable.
In one embodiment, referring to fig. 1 and fig. 3, the positioning element 20 is circular, the mounting hole 201 is a circular through hole, an inner wall 2012 of the mounting hole 201 is attached to the outer circumferential wall 302 of the camera 30, and an outer circumferential wall 2013 of the positioning element 20 is spaced apart from the housing 10. By providing the outer peripheral wall 2013 of the positioning member 20 with a distance from the housing 10, the positioning member 20 can move relative to the housing 10, so as to adjust the relative positions of the camera 30 and the window cover 40 with respect to the housing 10, which is beneficial to simplifying the overall assembly process.
In one embodiment, referring to fig. 1, fig. 4 and fig. 5, the positioning member 20 includes a plurality of sub-positioning members 21, the plurality of sub-positioning members 21 are distributed around the window hole 401, the plurality of sub-positioning members 21 surround to form an accommodating space 211, a central line 2111 of the accommodating space 211 passes through a central point 4011 of the window hole 401, the camera 30 is accommodated in the accommodating space 211 and fixed by the plurality of sub-positioning members 21, and an optical axis 301 of the camera 30 coincides with the central line. Specifically, the camera 30 in this embodiment has a regular shape such as a cylindrical shape or a square column shape, and similarly, the accommodation space 211 defined by the plurality of sub-spacers 21 has a regular shape, and the center line of the accommodation space 211 coincides with the optical axis 301 of the camera 30 and passes through the center point 4011 of the window hole 401. The center point 4011 of the viewing window hole 401 and the center line 2111 of the receiving space 211 are aligned through the CCD photographing process, and then the plurality of sub-positioning members 21 are fixed to the viewing window cover 40. Also, since the accuracy of the CCD photographing process is high, it is equivalent to that the center line 2111 of the accommodating space 211 passes through the center point 4011 of the viewing aperture 401. By arranging the plurality of sub-positioning pieces 21, the center line 2111 of the accommodating space 211 passes through the central point 4011 of the window hole 401, so that the position deviation size chain of the camera 30 and the window cover plate 40 is shortened, the eccentricity between the optical axis 301 of the camera 30 and the central point 4011 of the window hole 401 is reduced, and the concentricity precision is further improved.
In one embodiment, referring to fig. 1 and 4, the number of the sub-positioning members 21 is 4, the sub-positioning members 21 are cylindrical, and the outer peripheral wall 302 of the camera 30 is connected to the outer peripheries of the 4 sub-positioning members 21 and fixed to the window cover 40.
In one embodiment, referring to fig. 1 and 6, the number of the sub-positioning elements 21 is 3, the sub-positioning elements 21 are cylindrical, and the outer peripheral wall 302 of the camera 30 is connected to the outer peripheries of the 3 sub-positioning elements 21 and fixed to the window cover 40.
In one embodiment, referring to fig. 1 and fig. 7, the number of the sub-positioning units 21 is 2, and the outer circumferential surface 2101 of the accommodating space 211 enclosed by the sub-positioning units 21 is a cylindrical surface. The outer peripheral surfaces 2101 of the 2 sub-positioners 21 are fixed together by being adhered to the outer peripheral wall 302 of the camera 30.
Of course, the number of the sub-positioning members 21 may be 5, 6 or more, and the number of the sub-positioning members 21 is not limited in the present disclosure.
In one embodiment, referring to fig. 1, the camera module 100 further includes a sealing member 50, and the sealing member 50 is disposed between the camera 30 and the window cover 40. Specifically, the material of the sealing member 50 may be foam, rubber, resin, or the like. The sealing member 50 connects the window cover 40 and the camera 30, and the sealing member 50 is annular to prevent light from entering the camera 30 due to the shielding of the sealing member 50. Through setting up sealing member 50, sealing member 50 can prevent that dust or moisture around camera 30 from getting into between camera 30 and the window hole 401, and influence the shooting quality of module of making a video recording 100.
In one embodiment, referring to fig. 1, the casing 10 includes a middle frame 11 and a rear cover 12, the rear cover 12 includes a bottom plate 121 and a side plate 122, the side plate 122 is connected to one end of the bottom plate 121, the side plate 122 is connected to the middle frame 11, the window cover plate 40 is connected to the middle frame 11, and one end of the camera 30 away from the window cover plate 40 is connected to the bottom plate 121. Through setting up center 11 and back lid 12, can all assemble camera 30, setting element 20 and window apron 40 to center 11 earlier, be connected fixedly center 11 with back lid 12 again to in order to simplify the total assembly flow.
In one embodiment, referring to fig. 1, the middle frame 11 has a through hole 111, and the positioning element 20 is accommodated in the through hole 111. The through hole 111 may be a circular through hole, or may be a square through hole or a special-shaped hole. The through hole 111 is mainly used for accommodating the positioning member 20 and the camera 30, so as to simplify the space inside the housing 10.
In one embodiment, referring to fig. 1, the outer peripheral wall 2013 of the positioning member 20 is spaced apart from the inner wall 1111 of the through hole 111. The outer peripheral wall 2013 of the positioning member 20 and the inner wall 1111 of the through hole 111 are arranged to have a spacing distance, so that the relative positions of the positioning member 20, the camera 30, the window cover plate 40 and the middle frame 11 can be adjusted, the precision manufacturing requirement on the middle frame 11 can be reduced, and the process cost can be reduced.
In one embodiment, referring to fig. 1 and 3, the positioning member 20 includes a first end 2014 facing the window cover 40, the window cover 40 includes a first surface 402 opposite to the positioning member 20, and the first end 2014 and the first surface 402 have corresponding shapes. Specifically, when the first end surface 2014 is an arc surface protruding outward, the first surface 402 is an arc surface recessed inward; when first end 2014 is planar, first surface 402 is also planar. Preferably, both the first end 2014 and the first plane are planar. The first end 2014 and the first surface 402 are correspondingly shaped to facilitate the connection and fixation of the positioning member 20 and the window cover 40 after alignment.
In one embodiment, referring to fig. 1, the camera module 100 further includes a circuit board 60, the circuit board 60 is disposed in the housing 10, and the circuit board 60 is electrically connected to the camera 30 for receiving and processing an image of the camera 30.
Referring to fig. 1, an embodiment of the present disclosure further provides an electronic device, which includes the camera module 100 according to the embodiment of the present disclosure. The electronic device may be a smartphone, a tablet, a digital reader, a personal digital assistant, and the like. The camera module 100 is preferably applied to a front camera system of an electronic device. Through adding the camera module 100 provided by the embodiment of the disclosure in the electronic equipment, the electronic equipment has a relatively beautiful appearance shape, and the requirements of consumers are easily met.
Referring to fig. 1 and fig. 8, an embodiment of the present disclosure further provides a method for manufacturing a camera module 100, where the method includes:
s101: a window hole 401 is arranged on the window cover plate 40;
s102: a positioning piece 20 is arranged at the position corresponding to the window hole 401;
s103: the camera 30 is connected to the positioning member 20, so that the light entering end of the camera 30 is opposite to the viewing window 401 and the extension line of the optical axis 301 passes through the center point 4011 of the viewing window 401.
Through setting up the setting element 20 on window hole 401 corresponds the position, be connected camera 30 and setting element 20, make camera 30 advance the one end of light and look window hole 401 relative and the extension line of optical axis 301 passes through the central point 4011 who looks window hole 401, the influence of the position tolerance of the silk screen printing process of having avoided window apron 40 to the eccentricity, thereby shortened camera 30 and window apron 40's position deviation size chain, be favorable to improving camera 30's optical axis 301 and window apron 40's central point 4011's concentricity precision.
In one embodiment, referring to fig. 1, 8 and 9, S102: the positioning member 20 is disposed at a position corresponding to the window hole 401, and includes:
s1021: aligning the positioning member 20 to the window cover plate 40 by a CCD photographic process, so that the center line of the positioning member 20 passes through the central point 4011 of the window hole 401;
s1022: the positioning member 20 is fixed to the window cover 40.
Specifically, the characteristic position of the positioning member 20 is photographed and captured by a CCD camera, an industrial lens and a light source, image data is collected by an image processor to perform image processing, and position calculation is performed to determine the actual position of the positioning member 20, and the actual offset value of the positioning member 20 is calculated by comparing the actual position with the previously set reference position, so that the positioning member 20 is moved to the previously set reference position by controlling the movement of the alignment platform, thereby achieving rapid, closed-loop and high-precision alignment. Due to the extremely high positioning accuracy, the center line of the positioning member 20 is considered to pass through the center point 4011 of the window hole 401. The positioning element 20 is aligned to the window cover plate 40 by adopting a CCD photographic process, so that the center line of the positioning element 20 passes through the central point 4011 of the window hole 401, the influence of the position tolerance of the positioning element 20 and the window cover plate 40 on the eccentricity is basically eliminated, and the concentricity precision is further improved.
In one embodiment, referring to fig. 1, 8 and 9, S1021: the positioning member 20 is aligned to the window cover 40 by the CCD photographic process, so that the center line of the positioning member 20 passes through the center point 4011 of the window hole 401, including:
the retainer 20 is provided with a mounting hole 201, and an axis 2011 of the mounting hole 201 passes through a center point 4011 of the window hole 401.
The installation hole 201 is formed in the positioning member 20, so that the camera 30 can be conveniently installed, the characteristic position can be conveniently captured by the CCD photographic process, and the position tolerance between the positioning member 20 and the window cover plate 40 can be further reduced.
In one embodiment, referring to fig. 1, fig. 3, fig. 8 and fig. 9, S103: connecting the camera 30 with the positioning member 20, so that the light entering end of the camera 30 is opposite to the viewing window hole 401 and the extension line of the optical axis 301 passes through the central point 4011 of the viewing window hole 401, including:
the outer peripheral wall 302 of the camera 30 is attached to the inner wall 2012 of the mounting hole 201, and the optical axis 301 of the camera 30 is aligned with the axis 2011 of the mounting hole 201.
By attaching the outer circumferential wall 302 of the camera 30 to the inner wall 2012 of the mounting hole 201, the positional tolerance between the camera 30 and the outer circumferential wall is small; the optical axis 301 of the camera 30 is overlapped with the axis 2011 of the mounting hole 201, so that the extension line of the optical axis 301 of the camera 30 conveniently passes through the central point 4011 of the window hole 401.
In one embodiment, please refer to fig. 1, 4, 8 and 9, S102: the positioning member 20 is disposed at a position corresponding to the window hole 401, and includes:
a plurality of sub-positioning members 21 are disposed around the window hole 401 such that a center line 2111 of the accommodation space 211 defined by the plurality of sub-positioning members 21 passes through a center point 4011 of the window hole 401.
The center line 2111 of the accommodation space 211 formed by enclosing the plurality of sub-positioning members 21 passes through the center point 4011 of the window hole 401, so that the position tolerance between the positioning member 20 and the window cover 40 is reduced, and the concentricity accuracy is further improved. Specifically, the center line 2111 of the receiving space 211 can pass through the center point 4011 of the window hole 401 through the CCD photographing process, so as to further reduce the position tolerance of the positioning member 20 and the window cover 40.
In one embodiment, referring to fig. 1, 4, 8 and 9, S103: connecting the camera 30 with the positioning member 20, so that the light entering end of the camera 30 is opposite to the viewing window hole 401 and the extension line of the optical axis 301 passes through the central point 4011 of the viewing window hole 401, including:
the camera 30 is fixed to the accommodation space 211 by the plurality of sub-positioners 21, and the optical axis 301 of the camera 30 is made to coincide with the center line 2111 of the accommodation space 211.
It can be understood that, the camera 30 is fixed by the sub-positioning members 21, the fixing effect of the camera 30 is better, and the sub-positioning members 21 can be conveniently detached and replaced and are easier to maintain compared with the annular positioning member 20.
While the present disclosure has been described with reference to a few embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure.
Claims (10)
1. A camera module is characterized by comprising a shell, a positioning piece, a camera and a window cover plate,
the window cover plate is covered on the shell to form a containing cavity, the camera and the positioning piece are both arranged in the containing cavity, the window hole is formed in the window cover plate, one end of the camera for light entering is connected with the positioning piece and opposite to the window hole, and the other end of the camera is connected with the shell;
the positioning piece is fixed on the window cover plate, so that an extension line of an optical axis of the camera passes through the center point of the window hole, and the positioning piece and the shell have a spacing distance; the window hole is arranged on the surface of the window cover plate, which is back to the positioning piece.
2. The camera module of claim 1, wherein the positioning member defines a mounting hole, the camera is received in the mounting hole, and an axis of the mounting hole passes through a center point of the viewing aperture.
3. The camera module of claim 2, wherein the positioning member is circular, the mounting hole is a circular through hole, an inner wall of the mounting hole is attached to an outer peripheral wall of the camera, and the outer peripheral wall of the positioning member is spaced from the housing.
4. The camera module of claim 1, wherein the positioning member comprises a plurality of sub-positioning members, the sub-positioning members are distributed around the viewing window, the sub-positioning members surround to form an accommodation space, a center line of the accommodation space passes through a center point of the viewing window, the camera is accommodated in the accommodation space and fixed by the sub-positioning members, and an optical axis of the camera coincides with the center line.
5. The camera module of claim 1, further comprising a seal disposed between the camera head and the window cover.
6. The camera module of claim 3, wherein the housing includes a middle frame and a rear cover, the rear cover includes a bottom plate and a side plate, the side plate is connected to one end of the bottom plate, the side plate is connected to the middle frame, the window cover plate is connected to the middle frame, and an end of the camera away from the window cover plate is connected to the bottom plate.
7. The camera module of claim 6, wherein the middle frame is provided with a through hole, and the positioning member is received in the through hole.
8. The camera module of claim 7, wherein the outer peripheral wall of the retainer is spaced from the inner wall of the through hole.
9. The camera module of claim 1, wherein the positioning element includes a first end surface facing the window cover, the window cover includes a first surface opposite to the positioning element, and the first end surface and the first surface correspond in shape.
10. An electronic apparatus, characterized by comprising the camera module according to any one of claims 1 to 9.
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| CN202210252465.0A CN114500815A (en) | 2020-06-23 | 2020-06-23 | Camera module and electronic equipment |
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| CN202210252465.0A CN114500815A (en) | 2020-06-23 | 2020-06-23 | Camera module and electronic equipment |
| CN202010580095.4A CN111629138B (en) | 2020-06-23 | 2020-06-23 | Camera module, manufacturing method thereof and electronic equipment |
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| CN111629138B (en) | 2022-03-25 |
| CN111629138A (en) | 2020-09-04 |
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