Method for making infrared polarizing glasses

Details Method for making infrared polarizing glasses Method for making infrared polarizing glasses

1989-02-21

1990-03-13

Lindsay, Robert L.

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

65 323, 501 13, C03C 326, C03C 2300

Patent

active

049080547

ABSTRACT:
This invention is directed to the preparation of glass articles exhibiting a relatively broad band of high contrast polarizing properties in the infrared region of the radiation spectrum from glasses containing silver halide particles selected from the group consisting of AgCl, AgBr, and AgI. The inventive method comprises the following five general steps:

REFERENCES:
patent: 3653863 (1972-04-01), Araujo et al.
patent: 3892582 (1975-07-01), Simms
patent: 4190451 (1980-02-01), Hares et al.
patent: 4304584 (1981-12-01), Borrell et al.
patent: 4390592 (1983-06-01), Ernsberger
patent: 4479819 (1984-10-01), Borrelli et al.
patent: 4486213 (1984-12-01), Lentz et al.
patent: 4549795 (1985-10-01), Simms

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