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Title:
POLARIZATION CONVERSION ELEMENT, POLARIZATION-CONVERSION-ELEMENT MANUFACTURING METHOD, LIGHT-SOURCE UNIT, AND OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/208724
Kind Code:
A1
Abstract:
This invention provides a polarization conversion element that is highly resistant to the heat and light that result from increased brightness levels. In said polarization conversion element, inorganic half-wave plates provided selectively on the output surface of a polarizing beam-splitter array have obliquely deposited layers comprising a dielectric material and the side surfaces of said obliquely deposited layers are covered by protective films.

Inventors:
SASAKI KOJI (JP)
SASAKI MASATOSHI (JP)
KOIKE NOBUYUKI (JP)
TAKADA AKIO (JP)
SHINDO KATSUHIRO (JP)
SUGAWARA TOSHIAKI (JP)
MIYAGI KOUICHI (JP)
OOWADA MASAHIRO (JP)
Application Number:
JP2014/067176
Publication Date:
December 31, 2014
Filing Date:
June 27, 2014
Export Citation:
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Assignee:
DEXERIALS CORP (JP)
International Classes:
G02B5/30; C09J183/04; G02B5/04; G02F1/1335
Foreign References:
JP2008129190A2008-06-05
JPH1090520A1998-04-10
JP2008216644A2008-09-18
JP2008537163A2008-09-11
JPH10255313A1998-09-25
JPH1081955A1998-03-31
JP2005215669A2005-08-11
Attorney, Agent or Firm:
Shin-yu International Patent Firm (JP)
Patent business corporation Nobutomo international patent firm (JP)
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