Title:
移動体用照明装置および移動体
Document Type and Number:
Japanese Patent JP7092086
Kind Code:
B2
Abstract:
An illumination device (10) comprises: a light source (15) that emits light; a diffraction optical element (40) that diffracts the light emitted from the light source (15); and a projection optical system (50) that reflects or refracts the light diffracted by the diffraction optical system (40) and directs such light to a projection surface S. The projection optical system (50) directs some rays of primary diffraction light diffracted by the diffraction optical element (40) and some other rays of the of primary diffraction light in different directions.
Inventors:
Makio Kurashige
Shunpei Nishio
Shunpei Nishio
Application Number:
JP2019072694A
Publication Date:
June 28, 2022
Filing Date:
April 05, 2019
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
F21S41/33; B60Q1/26; F21S41/16
Domestic Patent References:
| JP2016110808A | ||||
| JP2013539180A |
Foreign References:
| WO2017043531A1 | ||||
| WO2016072505A1 |
Attorney, Agent or Firm:
Hiroyuki Nagai
Nakamura Yukitaka
Satoru Asakura
Yukihiro Hotta
Enami Kaoru
Nakamura Yukitaka
Satoru Asakura
Yukihiro Hotta
Enami Kaoru
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