Title:
LED LIGHTING DEVICE AND PLANT CULTURE SHELF
Document Type and Number:
WIPO Patent Application WO/2019/180815
Kind Code:
A1
Abstract:
Provided is a lighting device which suppresses operational costs and avoids loss in the illumination from an LED light while allowing the distribution of illumination in a lighting region to become uniform. This LED lighting device 10A comprises: a plurality of LED elements 16 which are disposed on the front surface of a base plate 15 and emit light; a first reflector 11 which is provided on the front surface of the base plate 15 and reflects the light emitted from the LED elements 16 via a first reflective face 17 having a normal N1 including a component in the opposite direction to the optical axis direction of the LED elements 16; and a second reflector 12 which is disposed at a position on the opposite side of the LED elements 16 from the first reflector 11 and reflects the light emitted from the LED elements 16 via a second reflective face 18 having a normal N2 including a component in the same direction as the optical axis direction Z of the LED elements 16.
Inventors:
OOHATA YUUJI (JP)
WATANOBE TADASHI (JP)
WATANOBE TADASHI (JP)
Application Number:
PCT/JP2018/011041
Publication Date:
September 26, 2019
Filing Date:
March 20, 2018
Export Citation:
Assignee:
SHIBAKAWA MFG CO LTD (JP)
International Classes:
F21S2/00
Foreign References:
JP2008098088A | 2008-04-24 | |||
JP2010533961A | 2010-10-28 | |||
JP2012055200A | 2012-03-22 |
Attorney, Agent or Firm:
TOKYO INTERNATIONAL PATENT FIRM (JP)
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