Title:
ILLUMINATION DEVICE
Document Type and Number:
Japanese Patent JP2022184347
Kind Code:
A
Abstract:
To provide an illumination device capable of stably illuminating a region to be illuminated in a predetermined shape.SOLUTION: A illumination device 10 has a light source 20, a shaping optical system 30, a light diffusion element 40, and a casing 50. The light source 20 emits coherent light. The shaping optical system 30 shapes the coherent light emitted from the light source 20. The light diffusion element 40 diffuses the coherent light shaped by the shaping optical system 30. The casing 50 houses the light source 20, the shaping optical system 30, and the light diffusion element 40. The light source 20, the shaping optical system 30, and the light diffusion element 40 are fixed to the casing 50 in a non-removable manner.SELECTED DRAWING: Figure 3
Inventors:
KURASHIGE MAKIO
ISHIDA KAZUTOSHI
NISHIO SHUMPEI
SHIMADA OSAMU
ISHIDA KAZUTOSHI
NISHIO SHUMPEI
SHIMADA OSAMU
Application Number:
JP2021092136A
Publication Date:
December 13, 2022
Filing Date:
June 01, 2021
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
F21L4/00; F21V3/00; F21V9/00; F21V23/00
Attorney, Agent or Firm:
Nakamura Yukitaka
Miyajima Manabu
Yukihiro Hotta
Enami Kaoru
Miyajima Manabu
Yukihiro Hotta
Enami Kaoru