Title:
OPTICAL DETECTION MECHANISM FOR DIAPHRAGM
Document Type and Number:
WIPO Patent Application WO/2021/062938
Kind Code:
A1
Abstract:
An optical detection mechanism for a diaphragm (400), the mechanism comprising an image acquisition device (200) and a detection light source (300); the detection light source (300) is located directly below a diaphragm (400) to be detected and comprises a first light source (303) and a second light source (304); the first light source (303) and the second light source (304) are configured to be capable of sequentially emitting first light and second light to the diaphragm (400) to be detected, and the first light and the second light irradiate the same position of the diaphragm (400) to be detected; and the image acquisition device (200) is configured to separately collect images of the appearance of the diaphragm (400) to be detected when the first light source (303) and the second light source (304) sequentially emit the first light and the second light to the diaphragm (400) to be detected.
Inventors:
MA DA (CN)
ZHANG YANKAI (CN)
ZHANG YANKAI (CN)
Application Number:
PCT/CN2019/122593
Publication Date:
April 08, 2021
Filing Date:
December 03, 2019
Export Citation:
Assignee:
SUZHOU JINGLAI OPTO CO LTD (CN)
International Classes:
G01N21/88
Domestic Patent References:
| WO2012139088A2 | 2012-10-11 |
Foreign References:
| CN110609040A | 2019-12-24 | |||
| CN101606094A | 2009-12-16 | |||
| CN103884650A | 2014-06-25 | |||
| CN104634789A | 2015-05-20 | |||
| CN106093068A | 2016-11-09 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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