Precursor composition for optical resin, resin for optical...

Details Precursor composition for optical resin, resin for optical... Precursor composition for optical resin, resin for optical...

2002-12-02

2009-06-30

Harlan, Robert D. (Department: 1796)

Stock material or miscellaneous articles

Composite

Of quartz or glass

Reexamination Certificate

active

07553544

ABSTRACT:
The optical element of the present invention has a first member and a second member which have been joined in close contact, and has nd1>nd2and (nF1−nC1)<(nF2−nC2), where the first member is formed of a resin having both a benzene ring and a fluorine atom, or the second member is formed of a resin having an alicyclic structure It also makes use of an optic-purpose resin precursor composition prepared by mixing a first resin precursor having nd<1.50 and (nF−nC)>0.003 in an uncured state and a second resin precursor having nd<1.62 and (nF−nC)>0.010.

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