CN114422658A - Camera module assembly method and device, camera module and electronic equipment - Google Patents

Camera module assembly method and device, camera module and electronic equipment Download PDF

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Publication number
CN114422658A
CN114422658A CN202011173828.9A CN202011173828A CN114422658A CN 114422658 A CN114422658 A CN 114422658A CN 202011173828 A CN202011173828 A CN 202011173828A CN 114422658 A CN114422658 A CN 114422658A
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China
Prior art keywords
lens
camera module
photosensitive sensor
photosensor
module
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CN202011173828.9A
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尚阳
陈兆亮
张晓勇
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN202011173828.9A priority Critical patent/CN114422658A/en
Publication of CN114422658A publication Critical patent/CN114422658A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/55Optical parts specially adapted for electronic image sensors; Mounting thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/54Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)

Abstract

The application provides an assembling method and device of a camera module, the camera module and electronic equipment. The assembling method of the camera module comprises the following steps: detecting imaging quality of a lens on a photosensitive sensor at a plurality of different rotation angle positions relative to the photosensitive sensor; and relatively fixing the lens and the photosensitive sensor in the rotating direction by taking the rotating angle position when the imaging quality is qualified as a fixed position. The assembling method and the assembling device can improve the imaging quality of the assembled module and reduce the reject ratio in the assembly production of the module. The application provides a camera module, in the equipment process, can be so that the camera lens adjust for the assembled position of light sensor for optimal position, promote the imaging quality after the module equipment, reduce the defective rate that the module assembled. The application provides an electronic equipment includes above-mentioned camera module.

Description

Camera module assembly method and device, camera module and electronic equipment
Technical Field
The present disclosure relates to the field of electronic devices, and particularly, to a method and an apparatus for assembling a camera module, and an electronic device.
Background
The mass production yield of the mobile phone camera lens and the photographing definition of the camera module after being assembled are always the key points of research and development of various mobile phone terminals and camera manufacturers. The imaging surface of the existing camera lens is circular, and most of the photosensitive sensors are 4:3 rectangles, and the circular imaging surface of the camera lens needs to fully cover the photosensitive surface of the photosensitive sensors to prevent dark corners at the imaging edge; in addition, most edge imaging surfaces of the camera lens are not accepted and used by the photosensitive sensor. To same camera lens, the definition difference of its different edge positions can be different, and when the module equipment, the better edge position of definition can effectively project on light-sensitive sensor's photosurface when can not guaranteeing the test, also promptly, can not avoid the marginal position that the definition is not enough to project on light-sensitive sensor's photosurface. Therefore, in real operation, the situation that the lens is qualified in the definition test, but the module is assembled to be scrapped due to insufficient definition of the edge of the lens is always generated. In view of this, the prior art is in need of improvement.
Disclosure of Invention
The application provides an assembling method of a camera module, the camera module and electronic equipment, which can reduce the reject ratio of the camera module in assembling production.
One aspect of the present application provides an assembling method of a camera module, where the camera module includes a lens and a light-sensitive sensor, and the method includes:
detecting imaging quality of the lens on the photosensitive sensor at a plurality of different rotational angle positions relative to the photosensitive sensor;
and relatively fixing the lens and the photosensitive sensor in the rotating direction by taking the rotating angle position when the imaging quality is qualified as a fixed position.
As a further improved technical solution, before detecting the imaging quality of the lens on the photosensitive sensor at a plurality of different rotational angle positions relative to the photosensitive sensor, the method further includes: and identifying the position of a mark on the lens, and recording the rotation angle of the lens relative to the photosensitive sensor according to the position of the mark on the lens.
As a further improved technical solution, before the identifying the mark position on the lens and recording the rotation angle of the lens relative to the light sensor according to the mark position on the lens, the method further includes moving the lens on a plane parallel to the light sensing surface of the light sensor to adjust a position between a center line of the lens and a center line of the light sensor, and moving the lens in a direction perpendicular to the light sensing surface of the light sensor to adjust a relative distance between the lens and the light sensor.
As a further improved technical solution, the mark position on the lens is a mold cavity mark formed on the lens appearance when the lens is molded.
As a further improved technical solution, after detecting the imaging quality of the lens on the photosensitive sensor at a plurality of different rotational angle positions relative to the photosensitive sensor, the method further includes: and at least recording the rotation angle position of the lens relative to the photosensitive sensor when the imaging quality is qualified.
As a further improved technical solution, the relatively fixing the lens and the photosensitive sensor in the rotation direction by taking the rotation angle position when the imaging quality is qualified as a fixed position includes: and fixing the lens and a lens carrier for bearing the lens in a three-dimensional direction, and connecting a motor with the lens carrier in a manner of driving the lens carrier to move.
As a further improved technical solution, before the lens and the photosensor are relatively fixed in the rotation direction by taking the rotation angle position when the imaging quality is qualified as the fixed position, the method includes mounting the lens on the lens carrier and enabling the lens to rotate in the rotation direction relative to the lens carrier.
This application on the other hand provides an assembly device of camera module, camera module includes camera lens and photosensitive sensor, assembly device includes:
the detection module is used for detecting the imaging quality of the lens on the photosensitive sensor at a plurality of different rotation angle positions relative to the photosensitive sensor;
and the fixing module is used for relatively fixing the lens and the photosensitive sensor in the rotating direction by taking the rotating angle position when the imaging quality is qualified as a fixed position.
As a further improved technical solution, the assembling device further includes an identification and recording module, and the identification and recording module is configured to identify a mark position on the lens and record a rotation angle of the lens relative to the photosensitive sensor according to the mark position on the lens.
As a further improved technical solution, the assembling device further includes an adjusting module, and the adjusting module is configured to move the lens on a plane parallel to the photosensitive surface of the photosensitive sensor to adjust a position between a center line of the lens and the center line of the photosensitive sensor, and move the lens in a direction perpendicular to the photosensitive surface of the photosensitive sensor to adjust a relative distance between the lens and the photosensitive sensor.
As a further improved technical solution, the assembling device includes a lens carrier and a motor, the fixing module fixes the lens and the lens carrier in a three-dimensional direction, and the motor is connected to the lens carrier in a manner that the motor can drive the lens carrier to move.
This application on the other hand provides a camera module, and it includes camera lens and photosensitive sensor, be equipped with mark position on the camera lens, mark position is used for discerning the camera lens for photosensitive sensor's rotation angle.
The application further provides an electronic device, which includes the camera module as described above, and the electronic device is a mobile phone or a tablet.
The application provides an assembly method and assembly device of camera module, through detecting the formation of image quality on photosensitive sensor when photosensitive sensor is in a plurality of different rotation angle positions for the photosensitive sensor, determine the rotation angle when formation of image quality is qualified, and use this rotation angle position as fixed position with camera lens and photosensitive sensor relatively fixed on the direction of rotation, the camera lens when having guaranteed promptly that the test is qualified is unanimous for photosensitive sensor's the locating position and the locating position of camera lens when assembling for photosensitive sensor, thereby the formation of image quality after the module equipment has been promoted, the defective rate in the module equipment production has been reduced. The application provides a camera module, it is in the equipment process, and the camera lens can be rotatory for photosensitive sensor, and has mark position and be used for discerning the camera lens for photosensitive sensor's rotation angle can make the camera lens adjust for photosensitive sensor's equipment position for optimal position to promoted the imaging quality after the module equipment, reduced the defective rate in the module equipment production. The application provides an electronic equipment includes above-mentioned camera module, also has above-mentioned beneficial effect certainly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic imaging diagram of a camera module according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a camera module according to an embodiment of the present disclosure.
Fig. 3 is a flowchart of an assembly method of the camera module according to an embodiment of the present disclosure.
Fig. 4 is a block diagram of an assembly apparatus of a camera module according to an embodiment of the present disclosure.
Reference numerals:
100-a camera module; 1-a lens; 11-mark position; 101-a projection plane; 2-a light sensitive sensor; 3-a lens carrier; 4-a motor; 5-a frame body; 6-an optical filter; 7-a circuit board; 71-electrical components; 81-a detection module; 82-a stationary module; 83-identification recording module; 84-adjusting module.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below do not represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with aspects of the present application.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The following describes an assembly method of a camera module, and an electronic device in detail with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
Please refer to fig. 1, which is a schematic imaging diagram of a camera module according to an embodiment of the present application. The camera module comprises a lens 1 and a photosensitive sensor 2. The imaging surface of the lens 1 projected on the photosensitive sensor 2 is circular. The area indicated by the dashed circle with reference number 101 in fig. 1 is the imaging plane 101 of the lens 1. The photosensor 2 is rectangular, and it is common in the industry that the length-width ratio is 4:3, is rectangular. During the imaging process of the camera, the circular imaging surface 101 of the lens 1 is generally required to fully cover the photosensitive surface of the photosensitive sensor 2 to prevent the imaging edge from being dark. As shown in fig. 1, when the circular imaging surface 101 completely covers the rectangular photosensitive surface of the photosensitive sensor 2, the imaging surface 101 should be a circle circumscribing the rectangular photosensitive surface. The image plane formed by most of the edges of the camera lens is not used by the photosensor 2. For the same lens 1, the sharpness difference at different edge positions may be different, and the following situations often occur: when the lens 1 is tested, the edge position with better definition is projected onto the photosensitive surface of the photosensitive sensor 2, and the edge position with insufficient definition is not projected onto the photosensitive surface of the photosensitive sensor 2, so that the test result of the lens 1 is qualified at the moment. When the lens 1 with a qualified test result is assembled in a module, the edge position with better definition may not be projected onto the photosensitive surface of the photosensitive sensor, and the edge position with insufficient definition is projected onto the photosensitive surface of the photosensitive sensor, so that the module is assembled and then scrapped due to insufficient edge definition. The camera module assembly method is based on the imaging process, and the technical problem is solved by improving the assembly method of the camera module.
Referring to fig. 3, the present application provides a method for assembling a camera module. The camera module comprises a lens 1 and a photosensitive sensor 2 as shown in fig. 1, and the method comprises the following steps.
S101, detecting the imaging quality of the lens 1 on the photosensitive sensor 2 at a plurality of different rotation angle positions relative to the photosensitive sensor 2.
Taking fig. 1 as an example, first, the light emitting surface of the lens 1 is opposite to the light sensing surface of the light sensing sensor 2, and the light emitting surface of the lens 1 and the light sensing surface of the light sensing sensor 2 are on parallel planes. Then, the optical axis of the lens 1 is made to be consistent with the central axis of the photosensitive sensor 2 by translating the lens 1 back and forth and left and right, and focusing is completed. Then the lens 1 is imaged on the photosensitive sensor 2 to detect the imaging quality, then the lens 1 is rotated by a certain angle according to the direction shown by the arrow in fig. 1, and then the imaging quality at the position of the rotation angle is detected, and the method can be used for carrying out multiple rotations to detect the imaging quality at a plurality of positions of the rotation angle. In the process, the size of the angle of each rotation can be set according to the requirement. For example, each time the rotation angle is 90 °, in two adjacent images, the image of the edge of the lens 1 on the upper and lower sides close to the photosensor 2 becomes the image on the left and right sides close to the photosensor 2. The rotation angle may be other angles, for example, 15 °, 30 °, 45 °, 60 °, 75 °, etc., and the corresponding image of the edge of the lens 1 on the photosensitive sensor 2 is also rotated by the corresponding angle. In the process, how many positions to be tested can be set according to the requirement. For example, when the imaging quality is qualified when a certain rotation angle position is detected, the continuous rotation and detection can be stopped, and the quality of the lens 1 is judged to be qualified; and if the imaging quality is not qualified after all the preset positions are detected, judging that the quality of the lens 1 is unqualified. For another example, several fixed detection positions may be set, for example, 4 detection positions may be set, and even if the imaging quality is detected to be acceptable at the first, second, or third detection position, the detection of the 4 positions is completed, and after the detection is completed, all the positions with acceptable imaging quality are recorded, or the position with the best imaging quality is analyzed, and if there is a position with acceptable imaging quality, the quality of the lens 1 is determined to be acceptable, and if there is no position with acceptable imaging quality, the quality of the lens 1 is determined to be unacceptable.
And S102, relatively fixing the lens 1 and the photosensitive sensor 2 in the rotating direction by taking the rotating angle position when the imaging quality is qualified as a fixed position.
The lens 1 and the photosensitive sensor 2 are relatively fixed in the rotation direction by taking the rotation angle position when the imaging quality is qualified as a fixed position, and the method specifically comprises two scenes. The first scenario is a case where the imaging quality inspection process of the lens 1 and the camera module assembly process are performed separately and independently. That is, the module assembly is not immediately performed after the inspection lens 1 determines whether the quality thereof is acceptable or not. At this time, at least the rotational angle position of the lens 1 with respect to the photosensitive sensor 2 when the imaging quality is acceptable is recorded. For example, the rotational angle position when the imaging quality is qualified is recorded in the document related to the lens 1, and when the lens 1 and the related document are assembled by the module assembler, the module assembler fixes the lens 1 and the photosensor 2 relatively in the rotational direction using the rotational angle position, which is recorded in the document and is qualified in the imaging quality, as the fixed position. The second scenario is a case where the imaging quality inspection process of the lens 1 and the camera module assembly process are performed in synchronization. That is, the lens 1 is rotated during the assembly process of the module, and the imaging quality detection is performed at a plurality of rotational positions, and when the imaging quality is qualified at a certain rotational position, the rotational position is used as a fixed position to relatively fix the lens 1 and the photosensor 2 in the rotational direction. For this second scenario, it may not be necessary to record the rotational angle position because the lens 1 is fixed at a position where the imaging quality is acceptable is detected.
Referring to fig. 2, in the step S102, fixing the lens 1 and the photosensor 2 relatively in the rotation direction includes fixing the lens 1 and the lens carrier 3 carrying the lens 1 in the three-dimensional direction. The fixation in the three-dimensional direction means that the lens 1 and the lens carrier 3 are fixed, so that the lens 1 cannot rotate and translate up, down, back, left and right relative to the lens carrier 3, and the fixed position of the lens 1 is ensured to be reliable. In this embodiment, the fixing the lens 1 and the lens carrier 3 for carrying the lens in the three-dimensional direction includes adhering and fixing the lens 1 and the lens carrier 3 for carrying the lens. In other embodiments, the fixing may also be a snap-fit fixing, an interference fit fixing, or the like. In step S102, the method further includes connecting a motor 4 to the lens carrier 3 in a manner that the motor can drive the lens carrier 3 to move. The motor 4 may be a voice coil motor, a piezoelectric motor, or the like.
The application provides an assembly method of camera module, through detecting formation of image quality on photosensitive sensor 2 when a plurality of different rotation angle positions of camera lens 1 for photosensitive sensor 2, determine the rotation angle when formation of image quality is qualified, and use this rotation angle position as fixed position with camera lens 1 and photosensitive sensor 2 relatively fixed on the direction of rotation, camera lens 1 when having guaranteed the test is qualified promptly is unanimous for photosensitive sensor 2's the locating position and the camera lens 1 when assembling for photosensitive sensor 2's locating position, thereby the formation of image quality after the module equipment has been promoted, the defective rate in the module equipment production has been reduced.
Further, since the lens 1 is circular, the rotation angle thereof can be recorded well. Before the step S101, the method further includes identifying a mark position on the lens 1, and recording a rotation angle of the lens 1 relative to the photosensitive sensor 2 according to the mark position on the lens 1. The method is characterized in that a mark position is arranged on the lens, the position of the mark position when the lens 1 is at a first test position is recorded, when the lens 1 rotates to a second test position, the rotating position of the lens 1 can be easily known according to the rotating angle of the mark position relative to the last position, and the qualified placing direction of the lens 1 during assembly is conveniently represented by the deflection angle of the mark position in a document related to the lens 1. In an embodiment, the mark position on the lens 1 is a mold cavity mark formed on the appearance of the lens 1 when the lens 1 is molded. Therefore, the marking position does not need to be additionally and independently set, and the universal detection of the lens 1 is convenient to realize.
Further, before recognizing the mark position on the lens 1 and recording the rotation angle of the lens 1 relative to the photosensor 2 according to the mark position on the lens 1, the method further includes moving the lens 1 on a plane parallel to the photosensitive surface of the photosensor 2 to adjust the position between the center line of the lens 1 and the center line of the photosensor 2, and moving the lens 1 in a direction perpendicular to the photosensitive surface of the photosensor 2 to adjust the relative distance between the lens 1 and the photosensor 2. That is, a process of adjusting the optical axis of the lens 1 to correspond to the center of the photosensor 2 and focusing.
Before the step S102, a step of mounting the lens 1 on the lens carrier 3 and rotating the lens 1 relative to the lens carrier 3 in the rotating direction is further included. The lens 1 is mounted on the lens carrier 3 in a manner of being capable of rotating in the rotating direction relative to the lens carrier 3, so that a module assembler can conveniently rotate the lens 1 to adjust the lens 1 to the rotating angle position with qualified imaging quality after assembling the lens 1 on the lens carrier 3.
Referring to fig. 4, the present application further provides an assembling device of a camera module, the assembling device includes:
a detection module 81, configured to detect imaging quality on the photosensitive sensor 2 when the lens 1 is at a plurality of different rotational angle positions relative to the photosensitive sensor 2;
and the fixing module 82 is configured to relatively fix the lens 1 and the photosensor 2 in the rotation direction by using the rotation angle position when the imaging quality is qualified as a fixed position.
The assembly device further comprises an identification and recording module 83, wherein the identification and recording module 83 is used for identifying the position of the mark on the lens 1 and recording the rotation angle of the lens 1 relative to the photosensitive sensor 2 according to the position of the mark on the lens 1. The identification recording module 83 identifies the mark position on the lens 1 before the detection module 81 detects the imaging quality on the photosensitive sensor 2 at a plurality of different rotation angle positions of the lens 1 relative to the photosensitive sensor 2, and records the rotation angle of the lens 1 relative to the photosensitive sensor 2 according to the mark position on the lens 1.
The assembly device further comprises an adjusting module 84, wherein the adjusting module 84 is used for moving the lens 1 on a plane parallel to the photosensitive surface of the photosensitive sensor 2 to adjust the position between the central line of the lens 1 and the central line of the photosensitive sensor 2, and moving the lens 1 in the direction perpendicular to the photosensitive surface of the photosensitive sensor 2 to adjust the relative distance between the lens 1 and the photosensitive sensor 2. The adjusting module 84 moves the lens 1 on a plane parallel to the photosensitive surface of the photosensitive sensor 2 to adjust the position between the center line of the lens 1 and the center line of the photosensitive sensor 2 before the recognition recording module 83 recognizes the mark position on the lens 1 and records the rotation angle of the lens 1 relative to the photosensitive sensor 2 according to the mark position on the lens 1, and moves the lens 1 in a direction perpendicular to the photosensitive surface of the photosensitive sensor 2 to adjust the relative distance between the lens 1 and the photosensitive sensor 2.
The assembling device comprises a lens carrier 3 and a motor 4, wherein the fixing module 82 fixes the lens 1 and the lens carrier 3 in a three-dimensional direction, and the motor 4 is connected with the lens carrier 3 in a manner of driving the lens carrier 3 to move.
The assembling device of the camera module can execute the assembling method of the camera module. The description of the assembling apparatus of the camera module is not exhaustive, and can be understood by referring to the above description of the assembling method of the camera module, and the description thereof is omitted here.
Please refer to fig. 2, which is a schematic diagram of an embodiment of the camera module 100 according to the present application. The camera module 100 can be assembled by the above-mentioned camera module assembling method. The camera module 100 includes a lens 1, a lens carrier 3 for carrying the lens 1, and a motor 4 for driving the lens carrier 3 and the lens 1. The lens 1 is provided with a mark position 11, and the mark position 11 is used for identifying the rotation angle of the lens 1 relative to the photosensitive sensor 2. In this embodiment, the motor 4 is a voice coil motor, and has a flexible elastic ring, and the elastic ring is connected to the lens carrier 3 to drive the lens carrier 3 and the lens 1 fixed on the lens carrier 3 to move in a flexible manner, so as to achieve focusing. The camera module 100 further includes an imaging device, which mainly includes, for example, a CMOS device, used in cooperation with the lens 1. The imaging device comprises a circuit board 7, and the circuit board 7 is provided with a photosensitive sensor 2 and an electrical component 71. The light-sensitive sensor 2 is connected to the circuit board through a gold thread, and the electrical component 71 is a resistor, a capacitor, an inductor and other circuit components for realizing circuit functions. The imaging device is further provided with a frame body 5 covering the photosensitive sensor 2, the frame body 5 corresponds to the photosensitive sensor 2 and is provided with a through hole, the through hole is provided with an optical filter 6, and an image projected by the lens 1 is projected onto a photosensitive surface of the photosensitive sensor 2 through the optical filter 6. The present application further provides an electronic device including the method 100 for assembling the camera module. In an embodiment, the electronic device is a mobile phone or a tablet. The application provides a camera module 100, it is in the equipment process, and camera lens 1 can be rotatory for light sensor 2, and has mark position 11 and be used for discerning camera lens 1 for light sensor 2's rotation angle can make camera lens 1 adjust for light sensor 2's assembled position for optimal position to promote the imaging quality after the module equipment, reduced the defective rate in the module equipment production. The electronic device provided by the application comprises the camera module 100, and certainly has the beneficial effects.
It can be known from the above description of the specific embodiment that, the assembling method 100 of the camera module provided in the present application, through detecting the imaging quality of the lens 1 on the photosensitive sensor 2 when being at a plurality of different rotation angle positions relative to the photosensitive sensor 2, determine the rotation angle when the imaging quality is qualified, and use this rotation angle position as a fixed position to relatively fix the lens 1 and the photosensitive sensor 2 in the rotation direction, that is, it is ensured that the placing position of the lens 1 when the test is qualified relative to the photosensitive sensor 2 is consistent with the placing position of the lens 1 when being assembled relative to the photosensitive sensor 2, thereby improving the imaging quality after the module assembly, and reducing the reject ratio in the module assembly production.
Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims (13)

1. A method for assembling a camera module, wherein the camera module comprises a lens and a photosensitive sensor, and the method comprises the following steps:
detecting imaging quality of the lens on the photosensitive sensor at a plurality of different rotational angle positions relative to the photosensitive sensor;
and relatively fixing the lens and the photosensitive sensor in the rotating direction by taking the rotating angle position when the imaging quality is qualified as a fixed position.
2. The method of assembling a camera module of claim 1, wherein said detecting the quality of the image on said photosensor at a plurality of different rotational angular positions of said lens relative to said photosensor further comprises: and identifying the position of a mark on the lens, and recording the rotation angle of the lens relative to the photosensitive sensor according to the position of the mark on the lens.
3. The method of assembling a camera module of claim 2, wherein the identifying the position of the mark on the lens and the recording the angle of rotation of the lens relative to the photosensor according to the position of the mark on the lens further comprises moving the lens in a plane parallel to the photosensitive surface of the photosensor to adjust the position between the center line of the lens and the center line of the photosensor and moving the lens in a direction perpendicular to the photosensitive surface of the photosensor to adjust the relative distance between the lens and the photosensor.
4. The method of claim 2, wherein the mark position on the lens is a cavity mark formed on the lens appearance when the lens is molded.
5. The method of assembling a camera module of claim 1, wherein said detecting an imaging quality on said photosensor at a plurality of different rotational angular positions of said lens relative to said photosensor further comprises: and at least recording the rotation angle position of the lens relative to the photosensitive sensor when the imaging quality is qualified.
6. The method for assembling a camera module according to any one of claims 1 to 5, wherein the relatively fixing the lens and the photosensor in the rotational direction with the rotational angle position at which the imaging quality is acceptable as a fixed position comprises: and fixing the lens and a lens carrier for bearing the lens in a three-dimensional direction, and connecting a motor with the lens carrier in a manner of driving the lens carrier to move.
7. The method for assembling a camera module according to claim 6, wherein before fixing the lens and the photosensor in a rotational direction with respect to each other with a rotational angular position at which imaging quality is acceptable as a fixed position, the method comprises mounting the lens on the lens carrier and rotating the lens in the rotational direction with respect to the lens carrier.
8. The utility model provides an assembly device of camera module, camera module includes camera lens and photosensor, its characterized in that, assembly device includes:
the detection module is used for detecting the imaging quality of the lens on the photosensitive sensor at a plurality of different rotation angle positions relative to the photosensitive sensor;
and the fixing module is used for relatively fixing the lens and the photosensitive sensor in the rotating direction by taking the rotating angle position when the imaging quality is qualified as a fixed position.
9. The assembly apparatus of claim 8, further comprising a recognition and recording module for recognizing the position of the mark on the lens and recording the rotation angle of the lens with respect to the photosensor according to the position of the mark on the lens.
10. The assembly apparatus of claim 9, further comprising an adjustment module for moving the lens on a plane parallel to the photosensitive surface of the photosensor to adjust a position between a center line of the lens and a center line of the photosensor, and moving the lens in a direction perpendicular to the photosensitive surface of the photosensor to adjust a relative distance between the lens and the photosensor.
11. The assembly apparatus of a camera module according to any one of claims 8 to 10, wherein the assembly apparatus comprises a lens carrier and a motor, the fixing module fixes the lens and the lens carrier in three dimensions, and the motor is connected to the lens carrier in such a manner that the motor can drive the lens carrier to move.
12. The camera module is characterized by comprising a lens and a photosensitive sensor, wherein a mark position is arranged on the lens and used for identifying the rotation angle of the lens relative to the photosensitive sensor.
13. An electronic device comprising the camera module of claim 9, wherein the electronic device is a mobile phone or a tablet.
CN202011173828.9A 2020-10-28 2020-10-28 Camera module assembly method and device, camera module and electronic equipment Pending CN114422658A (en)

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CN111736286A (en) * 2019-03-25 2020-10-02 宁波舜宇光电信息有限公司 Optical lens, camera module and production management method thereof

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