Title:
LIGHT SOURCE DEVICE, DETECTION DEVICE, AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/184638
Kind Code:
A1
Abstract:
A light source device includes a light source and a projection optical system. The light source includes a plurality of light emitters. The projection optical system is configured to emit light emitted from the light source. A light emission amount per unit area in a light emission region of the light source corresponding to an irradiated region where a magnification of the projection optical system is relatively large, is larger than a light emission amount per unit area in a light emission region corresponding to an irradiated region where a magnification of the projection optical system is relatively small.
Inventors:
SATOH TAKUMI (JP)
IKEOH TOSHIYUKI (JP)
IZUMIYA KAZUMA (JP)
UENO TSUYOSHI (JP)
IKEOH TOSHIYUKI (JP)
IZUMIYA KAZUMA (JP)
UENO TSUYOSHI (JP)
Application Number:
PCT/JP2020/010664
Publication Date:
September 17, 2020
Filing Date:
March 11, 2020
Export Citation:
Assignee:
RICOH CO LTD (JP)
SATOH TAKUMI (JP)
IKEOH TOSHIYUKI (JP)
IZUMIYA KAZUMA (JP)
UENO TSUYOSHI (JP)
SATOH TAKUMI (JP)
IKEOH TOSHIYUKI (JP)
IZUMIYA KAZUMA (JP)
UENO TSUYOSHI (JP)
International Classes:
G02B19/00; G01S17/10; H01S5/183; H01S5/42
Domestic Patent References:
| WO2014087301A1 | 2014-06-12 | |||
| WO2019020395A1 | 2019-01-31 |
Foreign References:
| US20080205459A1 | 2008-08-28 | |||
| US20070181810A1 | 2007-08-09 | |||
| JP2007214564A | 2007-08-23 |
Attorney, Agent or Firm:
SAKAI, Hiroaki (JP)
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