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Light leakage detection device and method for camera testing, assembling and bonding

A light leakage detection and camera module technology, which is applied in image communication, TV, color TV parts, etc., can solve the problem of lack of space between the lens group and the circuit board, the weak bonding between the lens group and the circuit board, and the impact on the image quality of the camera And other issues

Active Publication Date: 2022-03-08
SHINE OPTICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When processing and assembling the camera module, because the adhesive surface of some camera modules is square, or due to other reasons, the adhesive is not completely drawn on the circuit board, resulting in discontinuous distribution of the adhesive and resulting in broken glue, which will cause the gap between the lens group and the circuit board. The space between the circuit board and the lens group is not completely sealed by the adhesive, which causes the lens group and the circuit board to be bonded weakly, and the dirt will also enter the space between the circuit board and the lens group at the glue break, and flow from the glue break to the circuit board and the lens. The space between groups enters stray light, which affects the imaging quality of the camera

Method used

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  • Light leakage detection device and method for camera testing, assembling and bonding
  • Light leakage detection device and method for camera testing, assembling and bonding
  • Light leakage detection device and method for camera testing, assembling and bonding

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Light leakage detection device for camera test assembly bonding, such as figure 1 , figure 2 and image 3 Shown: It includes assembly and lamination machine 1 for assembling and laminating the lens group and circuit board to form a camera module. The lamination of the lens group and circuit board is carried out using existing UV glue, and the assembly and lamination machine 1 The bonded device can be assembled with the active calibration test of the existing ASM IS600GS model.

[0038] like image 3 As shown, the test chart card 12 with a plurality of marking points 13 is fixedly installed on the assembling and laminating machine 1. The marking point 13 is a black square with a side length of 0.5 cm. The test chart card 12 is located between the lens group and the circuit board. Above the loading platform 9, the outside of the preset range 14 of the marking point 13 is set as a light-blocking area, and the light-blocking area is filled with black, and the preset ran...

Embodiment 2

[0045] like Figure 4 As shown, this embodiment provides a light leakage detection method for camera test assembly and bonding, which can be applied to the light leakage detection device for camera test assembly and bonding in Embodiment 1, including the following:

[0046] Set the area outside the preset range 14 of multiple mark points 13 on the test chart 12 as a light-blocking area, and the light-blocking area is filled with a black substance, and the test chart 12 is arranged above the lens group, for example, the test chart The card 12 is pasted on the transparent plate 2 in the first embodiment with a transparent tape, and the screw head 11 is rotated first, so that the side of the chuck 8 that is far from the center of the screw head 11 is away from the length scale, and stretched according to the camera module. Ruler 7 adjusts the height of the test chart card 12 from the lens group, that is, the test chart card 12 is set at the first preset distance above the lens gr...

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Abstract

The invention relates to the technical field of camera processing and testing, in particular to a light leakage detection device and method for camera testing, assembling and bonding, and the device comprises an assembling and laminating machine which is fixedly provided with a testing graph card located above a loading platform of a lens group and a circuit board. A first light source and a plurality of second light sources are fixedly arranged on the assembling and laminating machine table, a light blocking area is arranged outside a preset range in the circumferential direction of the identification point, a processor is arranged on the assembling and laminating machine table, the processor obtains a test image from the camera module, and the processor judges the glue breaking condition and the shooting performance of the camera module according to the test image. A test graphic card provided with a light blocking area is used, light is irradiated from the upper portion of the test graphic card and the horizontal direction of a camera module, the camera module shoots a test image of the test graphic card, and meanwhile light leakage detection and shooting performance detection are carried out. According to the invention, the glue breaking and light leakage conditions and the shooting performance of the camera module are tested at the same time, and the testing procedures of the camera module are reduced.

Description

technical field [0001] The invention relates to the technical field of camera processing and testing, in particular to a light leakage detection device and method for camera testing, assembling and bonding. Background technique [0002] The camera module is a device used for image collection on smart devices such as mobile phones, tablet computers or laptops. The rapid development of smart devices has made the quality requirements of the images collected by the camera module higher and higher. The processing and assembly of the group poses great challenges. The method of processing and assembling the camera module is to fix the circuit board and the lens group together by dispensing glue. [0003] When processing and assembling the camera module, because the adhesive surface of some camera modules is square, or due to other reasons, the adhesive is not completely drawn on the circuit board, resulting in discontinuous distribution of the adhesive and resulting in broken glue...

Claims

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Application Information

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IPC IPC(8): H04N17/00H04N5/357
CPCH04N17/002H04N25/60
Inventor 陈如超贺高明何承军
Owner SHINE OPTICS TECH CO LTD
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