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.
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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)
SASAKI MASATOSHI (JP)
KOIKE NOBUYUKI (JP)
TAKADA AKIO (JP)
SHINDO KATSUHIRO (JP)
SUGAWARA TOSHIAKI (JP)
MIYAGI KOUICHI (JP)
OOWADA MASAHIRO (JP)
Application Number:
PCT/JP2014/067176
Publication Date:
December 31, 2014
Filing Date:
June 27, 2014
Export Citation:
Assignee:
DEXERIALS CORP (JP)
International Classes:
G02B5/30; C09J183/04; G02B5/04; G02F1/1335
Foreign References:
| JP2008129190A | 2008-06-05 | |||
| JPH1090520A | 1998-04-10 | |||
| JP2008216644A | 2008-09-18 | |||
| JP2008537163A | 2008-09-11 | |||
| JPH10255313A | 1998-09-25 | |||
| JPH1081955A | 1998-03-31 | |||
| JP2005215669A | 2005-08-11 |
Attorney, Agent or Firm:
Shin-yu International Patent Firm (JP)
Patent business corporation Nobutomo international patent firm (JP)
Patent business corporation Nobutomo international patent firm (JP)
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