Visible light optical polarizer made from stretched H 2...

Details Visible light optical polarizer made from stretched H 2... Visible light optical polarizer made from stretched H 2...

2005-12-20

2009-11-17

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S013000, C501S065000, C501S066000, C501S067000, C359S492010

Reexamination Certificate

active

07618908

ABSTRACT:
The invention is directed to a method for preparing visible light optical polarizers using a non-halide silver salt and any glass composition that the non-halide silver salts is soluble, provided that the glass composition, including the silver salt, was a halide content that is, on a molar basis, 10% or less than the silver content, on a molar basis, of the glass composition. The silver containing glass is hydrogen reduced prior to stretching to form an optical polarizer. The invention enables one to form a visible light polarizer having a polarizing layer thickness in the range 10-40 μm in which the silver particles have a surround index sufficiently removed from the blue polarizer region to allow good contrast.

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