Title:
PLANAR LIGHT EMITTING BODY, AND ILLUMINATION DEVICE AND BUILDING MATERIAL THAT USE THE SAME
Document Type and Number:
Japanese Patent JP2017157268
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a planar light emitting body having a high response speed when an optical characteristic is changed.SOLUTION: A planar light emitting body 100 includes a planar light emitting unit 10 comprising an organic electroluminescence element, a light scattering variable unit 20 whose degree of light scattering property is variable, and an optically adjustable optical adjustment unit 70. The planar light emitting body 100 includes a first face F1 configured so as to take out light from the planar light emitting unit 10, and a second face F2 arranged on an opposite side to the first face F1. The optical scattering variable unit 20, the planar light emitting unit 10 and the optical adjustment unit 70 are arranged in a thickness direction between the first face F1 and the second face F2. The optical adjustment unit 70 has a first wire grid element 71a and a second wire grid element 71b, and the first wire grid element 71a and the second wire grid element 71b are configured to be relatively movable. The optical adjustment unit 70 is arranged to be nearer to the second face F2 side than the planar light emitting unit 10 and the optical scattering variable unit 20.SELECTED DRAWING: Figure 1
Inventors:
KUBOTA HIROSHI
SUZUKA YUKO
SUZUKA YUKO
Application Number:
JP2014147924A
Publication Date:
September 07, 2017
Filing Date:
July 18, 2014
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H05B33/02; E06B7/28; F21S2/00; F21V9/40; F21V14/08; F21V33/00; H01L51/50
Attorney, Agent or Firm:
Keisei Nishikawa
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