US 2010/0134705 A1 · Glass Polarizer and Manufacturing Method Thereof

Abstract

A glass polarizer having an excellent transmittance and extinction ratio with respect to light in the visible light range including blue using silver halide containing glass as a starting material is provided. A manufacturing method according to the present invention to manufacture glass polarizers is characterized in that borosilicate glass in which silver halide particles are dispersed and deposited by heat treatment is reduced to generate metallic silver particles from at least a portion of silver halide and then, heated for stretching to generate silver halide particles oriented and stretched in the glass.

Claims14

Dependent claims

A method of manufacturing a glass polarizer, comprising the steps of:

producing borosilicate glass in which silver halide particles are dispersed and deposited by heat treatment;
reducing the silver halide particles;
and
generating silver particles oriented and stretched in the glass by heating the glass to stretch after the reduction step.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

12/226,814Filed 4 Mar 2008

Priority

JP 2007-10633813 Apr 2007

Published

3 Jun 2010

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

C03B 32/00
Thermal after-treatment of glass products not provided for in groups c03b19/00
C03B 23/037
Re-forming glass sheets: by drawing
C03C 1/00
Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
G02B 5/3041
In the form of a thin sheet or foil, e.g. Polaroid: comprising multiple thin layers, e.g. multilayer stacks

Glass Polarizer and Manufacturing Method Thereof

Life of this patent

Glass Polarizer and Manufacturing Method Thereof

Life of this patent

Abstract

Claims14