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Patent Searching and Data


Title:
ILLUMINATING DEVICE AND ILLUMINATING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/262698
Kind Code:
A1
Abstract:
The present invention provides an illumination device (1) including: a light source (2) for emitting coherent light; a scanning unit (5) for scanning the coherent light emitted from the light source; a first optical system (6) for adjusting an optical path of the coherent light from the scanning unit; a first optical member (7) for diffusing the coherent light from the first optical system; and a second optical system (8) for adjusting the optical path of the coherent light from the first optical member. An illuminated area (LZ) on an illuminated surface (PP) is illuminated with the coherent light emitted from the second optical system. An irradiance [W/m2] in a plane orthogonal to the optical axis of the coherent light emitted to the illuminated area is non-discrete.

Inventors:
NISHIO SHUMPEI (JP)
NAKAI TOSHIYUKI (JP)
KURASHIGE MAKIO (JP)
Application Number:
PCT/JP2020/025552
Publication Date:
December 30, 2020
Filing Date:
June 29, 2020
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
F21S2/00; F21V5/04; F21V7/00; G02B5/02; G02B26/10; G02B27/18; F21Y113/13; F21Y115/30
Domestic Patent References:
WO2012033170A12012-03-15
Foreign References:
JP2009042372A2009-02-26
JP2006053495A2006-02-23
JP2018177015A2018-11-15
JP2010197955A2010-09-09
JP2012220931A2012-11-12
JP2006309207A2006-11-09
US20090161191A12009-06-25
US20130300999A12013-11-14
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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