Title:
OPTICAL FILTER AND LIGHT-EMITTING DEVICE
Document Type and Number:
Japanese Patent JP2020161392
Kind Code:
A
Abstract:
To provide an optical filter projecting shadow varying together with the lapse of time on a projection screen, having no anxiety of occurrence of electric leakage or short circuit, and also having a high degree of installation flexibility: and to provide a light-emitting device.SOLUTION: A light-emitting device 1 includes an LED 32, a shape deformable material, and an external force generation mechanism 20 for deforming a shape deformable material. The shape deformable material is a material which is not liquid whose shape can be deformed by external force. The shape deformable material preferably contains gel having a storage elastic modulus of 1-40000 Pa in a frequency of 1 Hz, and for example silicone gel 43 can be suitably employed as the gel.SELECTED DRAWING: Figure 1
Inventors:
OKUNO TATSUYA
OGURA TOMOKO
OGURA TOMOKO
Application Number:
JP2019061159A
Publication Date:
October 01, 2020
Filing Date:
March 27, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
F21S2/00; F21V9/08; F21V9/40; F21V11/14; F21V14/04; F21V14/08
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office