Title:
ILLUMINATION SYSTEM HAVING DETECTION FUNCTION
Document Type and Number:
WIPO Patent Application WO/2020/253437
Kind Code:
A1
Abstract:
An illumination system (10) having a detection function comprises: an illumination light source (101) used to emit illumination light (111) exiting via an illumination light path; a first detection light source (102) used to emit first detection light (112) exiting via a first detection light path; and a light modulation device (120) provided on the illumination light path and the first detection light path, and used to modulate spatial distribution of the illumination light (111) and the first detection light (112), such that the illumination light (111) and the first detection light (112) simultaneously exit at at least some time periods and form complementary patterns at an exit side of the light modulation device (120). The invention ensures that detection and monitoring operations are performed on a non-illumination region in real time, and realizes precise matching of complementary patterns of exiting illumination and detection light by means of modulation performed by same light modulation device (120), thereby enhancing safety.
Inventors:
WANG LEI (CN)
WU YINGJIAN (CN)
WU YINGJIAN (CN)
Application Number:
PCT/CN2020/090808
Publication Date:
December 24, 2020
Filing Date:
May 18, 2020
Export Citation:
Assignee:
SHENZHEN LASER INST (CN)
International Classes:
F21S41/00; F21S41/30; F21S41/36; F21S43/00; F21V14/04
Foreign References:
| CN109855042A | 2019-06-07 | |||
| CN107345642A | 2017-11-14 | |||
| CN108458314A | 2018-08-28 | |||
| CN109204120A | 2019-01-15 | |||
| US20190145598A1 | 2019-05-16 |
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