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Title:
RESIN COMPOSITION FOR OPTICAL ELEMENT, OPTICAL ELEMENT, BEAM CONDENSING UNIT, AND OPTICAL PICKUP APPARATUS
Document Type and Number:
Japanese Patent JP2007138044
Kind Code:
A
Abstract:

To provide a resin composition for an optical element, which is capable of improving optical stability and maintaining the property for a long time period, an optical element, a beam condesing unit, and an optical pickup apparatus.

The resin composition for an optical element comprises an alicyclic hydrocarbon polymer, and has a radical number of 1014 spins/g or less.


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Inventors:
FUJINO YASUMITSU
HAYAKAWA SHOICHI
ITO HIROTO
Application Number:
JP2005334550A
Publication Date:
June 07, 2007
Filing Date:
November 18, 2005
Export Citation:
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Assignee:
KONICA MINOLTA OPTO INC
International Classes:
C08L45/00; C08F232/00; G02B1/04; G02B3/08; G11B7/135
Domestic Patent References:
JPH0538785A1993-02-19
JPH01132603A1989-05-25
JP2004144951A2004-05-20
JP2004197067A2004-07-15
JPH0760820A1995-03-07
JPH0639976A1994-02-15
Foreign References:
WO2005081019A12005-09-01
WO1999010025A11999-03-04
Attorney, Agent or Firm:
Hiroshi Arafune



 
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