Title:
照明装置
Document Type and Number:
Japanese Patent JP6823830
Kind Code:
B2
Abstract:
The invention provides a structurally simple illumination device capable of safely illuminating the desired area with coherent light. An illumination device (1) includes a laser light source (11) (coherent light source), a light diffuser (14), and a light scanning device (21). The laser light source (11) emits laser beam L (coherent light). The light diffuser (14) diffuses the laser beam L emitted from the laser light source (11). The light scanning device (21) guides the laser beam L to one of the illumination subareas constituting part of an illumination area, thereby scanning the laser beam L radiated from the light diffuser (14) across the illumination area.
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Inventors:
Kurashige Makio
Shunpei Nishio
Shunpei Nishio
Application Number:
JP2017197090A
Publication Date:
February 03, 2021
Filing Date:
October 10, 2017
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
F21S2/00; F21V3/00; F21V5/00; F21V5/04; F21V7/00; F21V9/00; F21V14/04; F21V23/00; G02B21/06; G02B26/10; H01S5/022
Domestic Patent References:
| JP2015132797A | ||||
| JP2011002547A | ||||
| JP2013222058A |
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Yukihiro Hotta
Murakoshi Taku
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Yukihiro Hotta
Murakoshi Taku