Title:
LIGHT DISTRIBUTOR, AND LIGHT SOURCE AND DEVICE FOR LIGHTING
Document Type and Number:
Japanese Patent JP2021125294
Kind Code:
A
Abstract:
To provide a light distributor that a lighting device capable of achieving lighting with uniform intensity or a patterned irradiation region, or a lighting light source that a signal device capable of displaying a signal with superior patterning precision comprises has, the lighting light source which has the light distributor and is superior in reliability, and a device that consists of the lighting device or signal device which comprises the lighting light source and is superior in reliability.SOLUTION: A light distributor 10 is configured to distribute light from a light emitting element 20 (light source), and has an absent part 13a (incidence part) that the light from the light emitting element 20 impinges on, an absent part 13b (first emission part) which emits lighting light, and a high-refractive-index part 11 (light guide part) which guides the light impinging on the absent part 13a as the lighting light to the absent part 13b. The absent part 13b is characterized in that area of regions where the lighting light is emitted is larger than area of regions where the light impinges on the absent part 13a, or the number of the regions where the lighting light is emitted is larger than the number of the regions where the light impinges on the absent part 13a.SELECTED DRAWING: Figure 1
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Inventors:
ITO HISASHI
FURUKAWA TSUYOSHI
FURUKAWA TSUYOSHI
Application Number:
JP2020015499A
Publication Date:
August 30, 2021
Filing Date:
January 31, 2020
Export Citation:
Assignee:
SUMITOMO BAKELITE CO
International Classes:
F21V8/00; F21S41/141; F21S41/24; F21S43/14; F21S43/239
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi
Kazuo Asahi