Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/047970
Kind Code:
A1
Abstract:
The purpose of the present embodiment is to provide a lighting device capable of radiating light to a desired location. In the present embodiment, the lighting device is provided with: in a first area of a first light guiding plate, a first convex portion on a first primary face and a second convex portion on a second primary face opposite from the first primary face; and in a third area of a second light guiding plate, a third convex portion on a third primary face which counters the second primary face and a fourth convex portion on a fourth primary face opposite from the third primary face. The first and third convex portions have scalene triangle cross-sectional shapes, and the second and fourth convex portions have isosceles triangle cross-sectional shapes.
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Inventors:
HASEGAWA MAKOTO (JP)
SUZUKI NOBUYUKI (JP)
OKADA MASAFUMI (JP)
SUZUKI NOBUYUKI (JP)
OKADA MASAFUMI (JP)
Application Number:
PCT/JP2022/033735
Publication Date:
March 30, 2023
Filing Date:
September 08, 2022
Export Citation:
Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
F21S2/00
Foreign References:
| JP2014075334A | 2014-04-24 | |||
| JP2013190779A | 2013-09-26 |
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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