Title:
LIGHTING DEVICE AND LIGHTING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/261855
Kind Code:
A1
Abstract:
The lighting device 100 is provided with a first prism section 1 extending in a direction away from an installation surface. The first prism section 1 has at least one prism 1a3 projecting in a direction intersecting with the vertical direction of the lighting device 100 when the vertical direction of the lighting device is the direction connecting the installation surface-side end of the lighting device 100 with the end opposite the installation surface-side end, and first light L incident on the first prism section 1 in a direction forming an acute angle with the vertical direction on the side to be illuminated is deflected by the first prism section 1 and output as light L toward the side to be illuminated.
Inventors:
YAMADA AKIHIRO (JP)
KUWATA MUNEHARU (JP)
KUWATA MUNEHARU (JP)
Application Number:
PCT/JP2020/020957
Publication Date:
December 30, 2020
Filing Date:
May 27, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F21V5/02; E06B5/00; F21S11/00; F21V5/00; F21V5/04; G02B5/02; G02B5/04
Domestic Patent References:
| WO2018003975A1 | 2018-01-04 | |||
| WO2015174397A1 | 2015-11-19 |
Foreign References:
| JP2014130247A | 2014-07-10 | |||
| JP2014038307A | 2014-02-27 | |||
| JP2015018774A | 2015-01-29 | |||
| JP2018006128A | 2018-01-11 | |||
| JP2015032568A | 2015-02-16 | |||
| JP2015074922A | 2015-04-20 | |||
| JP2019033013A | 2019-02-28 | |||
| JP2018147876A | 2018-09-20 | |||
| JP2014002962A | 2014-01-09 | |||
| JP2007128672A | 2007-05-24 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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