Title:
光源ユニットおよび照明器具
Document Type and Number:
Japanese Patent JP7024399
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a light source unit and a lighting device which can inhibit glare in a shorter side direction and a longer side direction of the lighting device.SOLUTION: A light source unit according to the invention includes: a substrate; a light source provided on a first surface of the substrate; and a lower surface prism part which is provided so as to face the first surface. The lower surface prism part has multiple first protruding parts protruding to the opposite side of the first surface and providing first inclined surfaces respectively.SELECTED DRAWING: Figure 3
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Inventors:
Shinichiro Okumura
Hashimoto Tagaji
Hashimoto Tagaji
Application Number:
JP2017251281A
Publication Date:
February 24, 2022
Filing Date:
December 27, 2017
Export Citation:
Assignee:
Mitsubishi Electric Corporation
Mitsubishi Electric Lighting Co., Ltd.
Mitsubishi Electric Lighting Co., Ltd.
International Classes:
F21S8/04; F21S2/00; F21V3/00; F21V3/02; F21V5/00; F21V5/02; F21V13/12
Domestic Patent References:
| JP2012119185A | ||||
| JP2015115220A |
Attorney, Agent or Firm:
Takada Mamoru
Hideki Takahashi
Jiro Ozawa
Hideki Takahashi
Jiro Ozawa