Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers
Patent
1994-07-01
1996-05-14
Lerner, Martin
Optical: systems and elements
Polarization without modulation
By relatively adjustable superimposed or in series polarizers
359492, 501 56, G02B 530, G02B 2728, C03C 311, C03C 1016
Patent
active
055173560
ABSTRACT:
A glass article that is effective in polarizing radiation in the range of 400-700 nm and method of making, the glass having an R.sub.2 O--Al.sub.2 O.sub.3 --B.sub.2 O.sub.3 --SiO.sub.2 base glass composition, a precipitated crystal phase consisting of a halide selected from the group composed of cuprous, cadmium and mixed cuprous-cadmium halides, the crystals in the crystal phase being elongated, and a portion of the crystals near the surface of the article being at least partially reduced to colloidal copper, whereby the article exhibits permanent dichroic behavior and has a polarization efficiency across the entire wavelength range of 400-700 nm of at least 0.80.
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Araujo Roger J.
Borrelli Nicholas F.
Lapp Josef C.
Morgan David W.
Corning Incorporated
Lerner Martin
Peterson Milton M.
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