Title:
LIGHT EMITTING MODULE
Document Type and Number:
Japanese Patent JP2022099102
Kind Code:
A
Abstract:
To provide a light emitting module which has excellent safety with respect to light.SOLUTION: A light emitting module 100A includes: a housing 9; and a first optical system provided inside the housing, and for emitting first light L1 from a light extraction port 8 of the housing. The first optical system includes: a first light emitting device 2A1 for emitting the first light from an emission surface; a dispersion member 4A1 for dispersing the light which has entered from an incident surface and for emitting it from the emission surface; and a first optical member 56A1 where the first light emitted from the emission surface of the dispersion member enters. The first light which has emitted from the emission surface of the dispersion member and entered the first optical member is emitted to the outside from the light extraction port, and light travelling on a virtual first straight line S1 from the emission surface of the dispersion member is formed so as not to be emitted to the outside from the light extraction port. The first straight line is a virtual strait line connecting the center of gravity G11 of an emission position of the first light from the first light emitting device, and the center of gravity G12 of an irradiation region RE1 which is a region where the first light from the first light emitting device is radiated on the incident surface of the dispersion member.SELECTED DRAWING: Figure 1
Inventors:
SUGIYAMA TAKASHI
Application Number:
JP2020212866A
Publication Date:
July 04, 2022
Filing Date:
December 22, 2020
Export Citation:
Assignee:
NICHIA KAGAKU KOGYO KK
International Classes:
F21S2/00; F21V7/28; F21V9/30; F21V23/00; F21V25/00; H01S5/022
Attorney, Agent or Firm:
Isono International Patent and Trademark Office
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