Title:
LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/205671
Kind Code:
A1
Abstract:
In a light source device (1) in which a plurality of light emitting diodes (2) are arranged on a plane, the light distribution angle of each light emitting diode (2) is less than 50° or more than 80°.
Inventors:
HAGIWARA MAMORU (JP)
Application Number:
PCT/JP2020/016807
Publication Date:
October 14, 2021
Filing Date:
April 09, 2020
Export Citation:
Assignee:
USK TECH CO LTD (JP)
International Classes:
F21V33/00; B29C35/08; B41F23/04
Foreign References:
| JP2019034297A | 2019-03-07 | |||
| JP2019072179A | 2019-05-16 | |||
| JP2017064610A | 2017-04-06 | |||
| JP2018061618A | 2018-04-19 |
Attorney, Agent or Firm:
NAKANO, Keiji (JP)
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