Plastic optical material

Details Plastic optical material Plastic optical material

1996-10-25

1998-06-02

Tucker, Philip

Compositions

Light transmission modifying compositions

359885, F21V 900

Patent

active

057594481

ABSTRACT:
Disclosed herein is a plastic optical material, which has excellent glare-proofness and transparency and is low in the degree of coloring.
The plastic optical material of the invention comprises a polymer containing a phosphate group and a trivalent neodymium ion therein, wherein the polymer further contains at least one metal ion selected from the group consisting of a trivalent praseodymium ion and a trivalent holmium ion.
The phosphate group may preferably be chemically bonded to a molecular structure constituting the polymer. In particularly, the polymer may preferably be a copolymer obtained by copolymerizing a monomer represented by the following formula I:

REFERENCES:
patent: 4504616 (1985-03-01), Uehara et al.
patent: 4563494 (1986-01-01), Ida
patent: 5413971 (1995-05-01), McPherson
patent: 5466775 (1995-11-01), Sakagami et al.
patent: 5567778 (1996-10-01), Saka Gami et al.
patent: 5611965 (1997-03-01), Shouji et al.

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