CN212321947U - Camera module optical structure and adjusting mechanism - Google Patents

Abstract

The utility model discloses a camera module optical structure and guiding mechanism, wherein this optical structure it includes base, lens cone and lens, the lens cone is installed on the base, the lens include the most sensitive main lens to optics and with a plurality of vice lens that the main lens cooperates the use, the main lens is installed on the base, vice lens is installed in the lens cone, be provided with the adjustment clearance between lens cone and the base, the adjustment clearance is used for adjusting the relative position relation between the lens cone and the base, the lens cone is fixed together through covering the controllable solidification glue that establishes in the adjustment clearance with the base; through the optical structure and the adjusting mechanism of the camera module, in the assembling process, the relative position relation between the base and the lens cone can be adjusted in real time according to the installation result so as to correct optical errors, so that the aim of correcting the installation errors and the mechanical errors is fulfilled, and the assembling quality of the optical structure is effectively improved.

Description

Camera module optical structure and adjusting mechanism

Technical Field

The utility model relates to a camera equipment technical field especially relates to a camera module optical structure and guiding mechanism.

Background

Most of the existing portable electronic devices, such as mobile phones, tablets, electronic watches, etc., are equipped with a camera module. The basic mechanism of the camera module comprises an optical structure and a photosensitive sensor, the optical structure comprises a plurality of optical lenses which are installed together, the photosensitive sensor collects optical signals of external scenery through the optical structure and converts the optical signals into electric signals, and the electric signals are displayed through a display after being processed by an image processor on electronic equipment, namely, the electric signals are digital photos. The final imaging quality of the camera module is greatly influenced by the installation error precision of the optical structure. With the gradually strong photographing function of the electronic device, the pixels are higher and higher, and the requirement for the installation error of the optical structure is higher and higher.

For an optical structure in the current camera module, all optical lenses are generally installed in a lens barrel, the lens barrel is positioned by mechanical coupling during assembly, then the lens barrel is installed on a base, and the lens barrel and the base are also positioned by mechanical coupling.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a camera module optical structure for solving above-mentioned technical problem not enough to the adjustment of installation accuracy in the convenient camera module optical structure assembling process.

Another object of the utility model is to provide an guiding mechanism for installation of camera module optical structure to be used for the adjustment to each spare part relative position in the camera module optical structure installation, with the installation accuracy who improves optical structure.

In order to realize the above-mentioned purpose, the utility model discloses a camera module optical structure, it includes base, lens cone and lens, the lens cone is installed on the base, the lens include to optics most sensitive main lens and with a plurality of vice lenses that the cooperation of main lens was used, the main lens is installed on the base, vice lens is installed in the lens cone, the lens cone with be provided with the adjustment clearance between the base, the adjustment clearance is used for the adjustment the lens cone with relative position relation between the base, the lens cone with the base is established through covering controllable solidification in the adjustment clearance is glued and is fixed together.

Compared with the prior art, the utility model discloses camera module optical structure installs the primary lens piece in the base, install the secondary lens piece in the lens cone, and be provided with the adjustment clearance between lens cone and the base, when tentatively assembling together lens cone and base, do not let controllable solidification glue solidification earlier, but place the optical structure who assembles together and test on the testboard, the photo quality of test shooting, then adjust the relative position between lens cone and the base according to the photo quality, until the light path main axis of primary lens piece and secondary lens piece is located same straight line, obtain high-quality test photo, then start the solidification condition of controllable solidification glue, make the solidification of controllable curing agent, fix lens cone and base together; therefore, by means of the optical structure of the camera module, in the assembling process, the relative position relation between the base and the lens barrel can be adjusted in real time according to the installation result so as to correct optical errors, the purpose of correcting installation errors and mechanical errors is achieved, and the assembling quality of the optical structure is effectively improved.

Preferably, the adjustment gap supports adjustment of the relative positional relationship between the lens barrel and the base in three planes of the X-axis, the Y-axis and the Z-axis.

Preferably, the controllable curing glue is a UV glue.

The utility model also discloses an adjusting mechanism for installing the optical structure of the camera module, which has the optical structure as above; the adjusting mechanism comprises a test circuit board, a photosensitive sensor and a moving mechanism; the photosensitive sensor is electrically connected with the test circuit board, and the base can be in butt joint with the test circuit board so that the photosensitive sensor obtains light rays through the optical structure of the camera module; the test circuit board is provided with an output port, and the output port is used for outputting light data acquired by the photosensitive sensor through the optical structure of the camera module; the moving mechanism is used for adjusting the relative position relationship between the base and the lens cone according to the light ray data.

Preferably, the moving mechanism is connected to the test circuit board, and the adjusting mechanism further includes a clamping mechanism for positioning the lens barrel.

Preferably, the moving mechanism is a manipulator or a three-axis moving platform.

Preferably, the adjusting mechanism further comprises a control platform capable of being in communication connection with the output port on the test circuit board and the moving mechanism, the control platform comprises a controller and an image processor electrically connected with the controller, and the image processor is used for processing the light ray data to obtain the light path deviation in the optical structure of the camera module; the controller is used for converting the optical path deviation signal output by the image processor into a displacement adjustment quantity and controlling the action of the moving mechanism according to the displacement adjustment quantity.

Preferably, a test chart is further disposed above the lens barrel.

Preferably, the edge of the test circuit board is further provided with a plurality of stoppers, and when the base is placed on the test circuit board, the stoppers are used for stopping the relative displacement of the base relative to the test circuit board.

Preferably, a black anti-slip gasket is further disposed on a contact surface of the test circuit board, which is in contact with the base.

Drawings

Fig. 1 is the utility model discloses a camera module optical structure's spatial structure schematic diagram.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is an exploded view of fig. 1.

Fig. 4 is a schematic perspective view of the base according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of the relative position between the adjusting mechanism and the optical structure of the camera module in the embodiment of the present invention.

Fig. 6 is a schematic perspective view of an adjusting mechanism according to an embodiment of the present invention.

Fig. 7 is a schematic view of an operating state of the adjusting mechanism according to the embodiment of the present invention.

Fig. 8 is a schematic diagram of a control principle of the adjusting mechanism in the embodiment of the present invention.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1 to 4, the utility model discloses a camera module optical structure 1, it includes base 10, lens cone 11 and lens, lens cone 11 is installed on base 10, the lens includes the main lens 120 that is most sensitive to optics and a plurality of vice lenses 121 with the cooperation of main lens 120 use, main lens 120 is installed on base 10, vice lenses 121 are installed in lens cone 11, be provided with adjustment clearance 13 between lens cone 11 and the base 10, adjustment clearance 13 is used for adjusting the relative position relation between lens cone 11 and the base 10, lens cone 11 is fixed together through covering the controllable solidification of establishing in adjustment clearance 13 with base 10. When the camera module optical structure 1 with the structure is used for assembling, the lens barrel 11 and the base 10 are firstly assembled together preliminarily, at this time, the controllable curing adhesive is not cured, the assembled optical structure 1 is placed on a test bench for testing, the quality of shot photos is tested, then the relative position between the lens barrel 11 and the base 10 is adjusted according to the quality of the photos until the main axes of the optical paths of the main lens 120 and the auxiliary lens 121 are positioned on the same straight line, high-quality test photos are obtained, then the curing condition of the controllable curing adhesive is started, so that the controllable curing agent is cured, and the lens barrel 11 and the base 10 are fixed together. Therefore, in the assembling process, the relative position relationship between the base 10 and the lens barrel 11 can be adjusted in real time according to the assembling result through the camera module optical structure 1 to correct the optical error, so that the purposes of correcting the installation error and the mechanical error are achieved, and the assembling quality of the optical structure 1 is effectively improved. Preferably, the adjusting gap 13 supports the relative position relationship between the adjusting lens barrel 11 and the base 10 in three planes of the X-axis, the Y-axis and the Z-axis to meet the requirement of high precision assembly. The controllable curing adhesive in this embodiment is a UV adhesive, and after the relative position relationship between the lens barrel 11 and the base 10 is adjusted in place, ultraviolet rays are irradiated on the UV adhesive in the adjustment gap 13, so that the UV adhesive is cured.

In addition, the utility model discloses an adjustment mechanism is still disclosed, like fig. 5 to fig. 7 to be arranged in the adjustment of camera module optical structure 1 assembly process assembly precision, through the relative position relation between this adjustment mechanism adjustment base 10 and lens cone 11 promptly. Specifically, the adjustment mechanism includes a test circuit board 20, a photosensor 21 for use on the camera module, and a moving mechanism 22. The photosensitive sensor 21 is electrically connected to the test circuit board 20, and the base 10 can be abutted to the test circuit board 20, so that the photosensitive sensor 21 obtains light through the camera module optical structure 1. The test circuit board 20 is provided with an output port 23, and the output port 23 is used for outputting light data acquired by the photosensor 21 through the camera module optical structure 1. The moving mechanism 22 is used for adjusting the relative positional relationship between the base 10 and the lens barrel 11 according to the light data. In this embodiment, by setting the test circuit board 20, the photosensitive sensor 21 and the moving mechanism 22, the assembling quality can be detected in real time during the assembling process of the optical structure 1, and the assembling quality can be adjusted by the moving mechanism 22 until the requirements are met, so that the assembling efficiency and the assembling quality can be effectively improved.

Further, the moving mechanism 22 is connected to the test circuit board 20, and the adjusting mechanism further includes a clamping mechanism 24 for positioning the lens barrel 11. When the test device works, the lens barrel 11 is clamped by the clamping mechanism 24, the lens barrel 11 is fixed at the current position, and at the moment, the test circuit board 20 is driven to move by the movement of the moving mechanism 22, so that the base 10 on the test circuit board 20 is driven to move, and the purpose of adjusting the relative position relationship between the base 10 and the lens barrel 11 is achieved. Preferably, the moving mechanism 22 is a robot or a three-axis moving platform 25, and the specific structure of the robot and the three-axis moving platform 25 is common knowledge of those skilled in the art and will not be described in detail herein.

Further, referring to fig. 8, the adjusting mechanism further includes a control platform capable of being in communication connection with the output port 23 on the test circuit board 20 and the moving mechanism 22, the control platform includes a controller 30 and an image processor 31 electrically connected to the controller 30, and the image processor 31 is configured to process the light data to obtain the light path deviation in the optical structure 1 of the camera module. The controller 30 is configured to convert the optical path deviation signal output from the image processor 31 into a displacement adjustment amount, and control the operation of the moving mechanism 22 according to the displacement adjustment amount. According to this embodiment, can realize automated inspection and adjustment to the assembly precision of camera module optical structure 1, further improve assembly efficiency. Preferably, a test card (not shown) is further disposed above the lens barrel 11 for a photographing test of the camera module.

In addition, as shown in fig. 6, in order to prevent the base 10 and the test circuit board 20 from generating relative displacement during the movement adjustment process and affecting the test effect, a plurality of stoppers 26 are further disposed at the edge of the test circuit board 20, and when the base 10 is placed on the test circuit board 20, the stoppers 26 are used for stopping the base 10 from generating relative displacement with respect to the test circuit board 20. Preferably, the contact surface of the test circuit board 20 contacting the base 10 is further provided with an anti-slip pad 27; optionally, the anti-slip pad 27 is black.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims (10)

1. The optical structure of the camera module is characterized by comprising a base, a lens barrel and lenses, wherein the lens barrel is installed on the base, the lenses comprise a main lens which is most sensitive to optics and a plurality of auxiliary lenses which are matched with the main lens for use, the main lens is installed on the base, the auxiliary lenses are installed in the lens barrel, an adjusting gap is formed between the lens barrel and the base, the adjusting gap is used for adjusting the relative position relationship between the lens barrel and the base, and the lens barrel and the base are fixed together through controllable curing glue which is covered in the adjusting gap.

2. The camera module optical structure according to claim 1, wherein the adjustment gap supports adjustment of the relative positional relationship between the lens barrel and the base in three planes of an X-axis, a Y-axis and a Z-axis.

3. The camera module optical structure of claim 1, wherein the controllable curable glue is a UV glue.

4. An adjustment mechanism for mounting an optical structure of a camera module, wherein the optical structure of the camera module is as claimed in any one of claims 1 to 3; the adjusting mechanism comprises a test circuit board, a photosensitive sensor and a moving mechanism; the photosensitive sensor is electrically connected with the test circuit board, and the base can be in butt joint with the test circuit board so that the photosensitive sensor obtains light rays through the optical structure of the camera module; the test circuit board is provided with an output port, and the output port is used for outputting light data acquired by the photosensitive sensor through the optical structure of the camera module; the moving mechanism is used for adjusting the relative position relationship between the base and the lens cone according to the light ray data.

5. The adjustment mechanism for mounting an optical structure of a camera module according to claim 4, wherein said moving mechanism is connected to said test circuit board, said adjustment mechanism further comprising a clamping mechanism for positioning said lens barrel.

6. The adjustment mechanism for mounting an optical structure of a camera module according to claim 4, wherein said moving mechanism is a robot or a three-axis moving platform.

7. The adjustment mechanism of claim 4, further comprising a control platform communicatively coupled to the output port of the test circuit board and the movement mechanism, wherein the control platform comprises a controller and an image processor electrically coupled to the controller, the image processor being configured to process the light data to obtain a light path deviation in the optical structure of the camera module; the controller is used for converting the optical path deviation signal output by the image processor into a displacement adjustment quantity and controlling the action of the moving mechanism according to the displacement adjustment quantity.

8. The adjusting mechanism for mounting an optical structure of a camera module according to claim 4, wherein a test card is further disposed above the lens barrel.

9. The adjusting mechanism for mounting an optical structure of a camera module according to claim 4, wherein a plurality of stoppers are further disposed at the edge of the test circuit board, and when the base is placed on the test circuit board, the stoppers are used for stopping the relative displacement of the base with respect to the test circuit board.

10. The adjusting mechanism for mounting an optical structure of a camera module according to claim 4, wherein a non-slip gasket is further disposed on a contact surface of the test circuit board contacting the base.

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