Visual light source detection system and detection method

Abstract

The embodiment of the invention discloses a visual light source detection system and detection method. The detection system comprises an image acquisition module, a light source placement module and an industrial personal computer, the image acquisition module is connected with the industrial personal computer, the light source placement module comprises a tool piece and a light source placement base, and the light source placement base and the image acquisition module are installed on the two opposite faces of the tool piece. An included angle between the image acquisition module and the central axis of the light source placement module along the image acquisition direction is a first preset angle, the image acquisition module is used for acquiring image information of a to-be-tested light source on the light source placement base, and the industrial personal computer converts the image information of the to-be-tested light source into gray information; and comparing the gray scale information with pre-stored gray scale information of a standard light source, and judging whether the light source to be tested is qualified or not. The technical scheme of the embodiment is suitable for testing the luminescence characteristics of various light sources, the test accuracy of the light source to be tested under different brightness is improved by utilizing the control of the industrial personal computer, and the test efficiency of the light source to be tested is further improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of industrial visual detection, and in particular to a visual light source detection system and detection method. Background technique [0002] In the field of industrial visual inspection, cameras, lenses, and light sources play a key role in the information collection system. Among them, whether the light source affects the defect of the detected object is easy to detect. The commonly used light sources mainly include strip light source, surface light source, dome light source, etc. For the bar light source and surface light source, most of them are prevented from being used as backlight at the bottom of the detected object. The camera directly collects the information of the detected object and the light source. Therefore, the illuminance uniformity of the effective light-emitting surface of the light source determines whether the light source is qualified. The dome light source ...

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Problems solved by technology

[0004] Since the above method is tested by a hand-held illuminance meter, it cannot be guaranteed that the illuminance meter detects that the integrating sphere is completely parallel to the light-emitting surface, and the test time is long, and the data accuracy is low; There may be a problem of missed detection; finally, the above test method is only applicable to the test of strip light source and surface light source, and cannot test other heterosexual light source and reflective light source.

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