OPTICAL IRRADIATION DEVICE AND INTEGRATOR FOR POLARIZED LIGHT SOURCE

Title:

OPTICAL IRRADIATION DEVICE AND INTEGRATOR FOR POLARIZED LIGHT SOURCE

Document Type and Number:

WIPO Patent Application WO/2019/088124

Kind Code:

A1

Abstract:

The present invention provides an optical irradiation device which contributes to power saving and the reduced size, and is capable of improving light use efficiency by emitting polarized light. The optical irradiation device comprises a polarized light source 1 for emitting polarized light and an optical integrator 2 that has an incidence surface 21 whereon incidence light PL1 from the polarized light source 1 is incident and has an emission surface 22 opposite the incidence surface 21 for emitting the incidence light PL1 as emission light PL2. The emission light PL2 from the optical integrator 2 is polarized.

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Inventors:

TAKAIWA TOSHIYUKI (JP)
KURODA TOSHIHIRO (JP)
YAMAGUCHI MASATOSHI (JP)
HIYAMA SHUN (JP)

Application Number:

PCT/JP2018/040390

Publication Date:

May 09, 2019

Filing Date:

October 30, 2018

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Assignee:

HITACHI CHEMICAL CO LTD (JP)

International Classes:

G02B19/00; F21S2/00; F21V8/00; G02B5/02; G02B27/28; G03B21/14; F21Y115/30

Foreign References:

JP2010060912A	2010-03-18
JP2016065909A	2016-04-28

Attorney, Agent or Firm:

HIRASAWA, Kenichi et al. (JP)

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