Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/100161
Kind Code:
A1
Abstract:
This lighting device (100) is provided with: a light source unit (10) for emitting light (L1); a first optical unit (20, 20a) for, upon receiving the light (L1) thereon, changing the diffusion angle of the light (L1) received; a second optical unit (30) including an image light formation part (31) for, upon receiving light (L2) with the changed diffusion angle thereon, emitting light (L31) including image light containing image information; and a drive unit (60, 60a) for moving the first optical unit (20, 20a) and the second optical unit (30).
Inventors:
OSHIMA RITSUYA (JP)
NISHIMURA MASATOSHI (JP)
YAMADA AKIHIRO (JP)
KUWATA MUNEHARU (JP)
NISHIMURA MASATOSHI (JP)
YAMADA AKIHIRO (JP)
KUWATA MUNEHARU (JP)
Application Number:
PCT/JP2019/045523
Publication Date:
May 27, 2021
Filing Date:
November 21, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F21S2/00; F21S41/63; F21Y101/00; F21Y115/10; F21Y115/15; F21Y115/30
Domestic Patent References:
| WO2016051863A1 | 2016-04-07 |
Foreign References:
| JP2004136838A | 2004-05-13 | |||
| JP2008084577A | 2008-04-10 | |||
| JP2008091350A | 2008-04-17 |
Attorney, Agent or Firm:
YAMAGATA Yoichi et al. (JP)
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