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Title:
LAMINATED WAVELENGTH BOARD
Document Type and Number:
Japanese Patent JP2004264620
Kind Code:
A
Abstract:

To provide a wideband wavelength plate (retardation plate) usable as a wavelength plate for an optical information recording reproducing device by stabilizing for heat and humidity, and making a plurality of laser lights with different wavelengths effective.

The laminated wavelength plate mutually adheres a ring-like olefin, based a resin film in the range of 5-5,000 nm of a phase difference with respect to a light of 550 nm of wavelength and an anisotropic crystal plate, such as quartz.


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Inventors:
USHINO TAKUHIRO
SEKIGUCHI MASAYUKI
HIRONO TATSUYA
Application Number:
JP2003055115A
Publication Date:
September 24, 2004
Filing Date:
March 03, 2003
Export Citation:
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Assignee:
JSR CORP
International Classes:
B32B9/04; B32B27/32; C08G61/06; G02B5/30; G11B7/1365; (IPC1-7): G02B5/30; G11B7/135
Domestic Patent References:
JP2002116321A2002-04-19
JPH1090521A1998-04-10
JP2000284126A2000-10-13
JP2001290017A2001-10-19
Attorney, Agent or Firm:
Shigetaka Shirai



 
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