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Lens module detection method and system

A lens module and detection method technology, applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of inaccurate detection results, high quality inspection costs, and slow detection speed, so as to improve user experience and effect , the effect of improving efficiency

Active Publication Date: 2019-06-04
CHENGDU XGIMI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product quality inspection in the prior art usually uses manual sampling inspection and mechanical method to detect the installation position and angle of the hardware module, the detection speed is slow and the detection result cannot be fast and accurate, and the quality inspection cost is high

Method used

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  • Lens module detection method and system
  • Lens module detection method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 is a method for detecting a lens module.

[0029] Such as figure 1 , is a schematic diagram of a lens module detection method, wherein the projection device includes a lens module, and the calibration image includes a calibration mark. The method of detecting the lens module by calibrating the image is realized through the following steps:

[0030] The projection device is placed on the detection platform during pre-delivery inspection. The detection platform includes a base for placing the projection device and a fixedly installed calibration image. The positional relationship between the calibration image and the base of the detection platform has been fixed, so that the projection device The lens module is facing the calibration image;

[0031] The calibration image is an image used for testing, and there is a logo graphic for calibration in the center of the calibration image. In one embodiment, the logo graphic is a circular logo, and it can also be ...

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Abstract

The invention discloses a lens module detection method and a lens module detection system, which are used for quickly and conveniently detecting whether the position of a lens module in assembled projection equipment is qualified or not. The lens module detection method comprises the steps of acquiring an image captured by means of the lens module on a calibration image, determining a first picture area Pa1, determining a second picture area Pa2 in the captured image, determining a positional relationship between a calibration mark and the second picture area in the image, and judging whetherthe lens module is qualified. The lens module detection method and the lens module detection system utilize the picture captured from the calibration image for processing and detection, feeds back data to the interface, is simple in the implementation operating process, and can quickly and effectively complete the detection of assembled products; hardware modules of the lenses do not need to be detected in actual detection, the detection result is visualized, the lens module detection method and the lens module detection system can be applied to production quality detection of various lens modules, improve the efficiency of equipment factory delivery detection, can effectively screen out the bad finished products in factory delivery, improve the use of equipment and enhance the user experience.

Description

technical field [0001] The invention relates to the field of automatic detection, in particular to a detection method and system for a lens module. Background technique [0002] The development of projection technology has made projection equipment more and more popular in the office and home fields. The use of projection equipment involves the adjustment of the projection screen and the adjustment of the focus definition in order to obtain the optimal projection effect. In the production of projection equipment, each module is mechanically assembled into an overall equipment through an assembly line. Among them, whether the installation of the lens module is qualified is the key factor affecting the adjustment of the projection screen range and focus definition in actual use. Therefore, it is necessary to perform quality inspection on the installation of the lens module of each projection device before leaving the factory. The product quality inspection in the prior art us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00
Inventor 钟波肖适刘志明杨鹏
Owner CHENGDU XGIMI TECH CO LTD
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