Multilayered security window structure

Details Multilayered security window structure Multilayered security window structure

1989-09-25

1992-04-07

Laroche, Eugene R.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359 96, 359 93, 359361, G02F 113, G02F 1137, G02F 103, F21V 906

Patent

active

051033364

ABSTRACT:
A multilayered security window structure employs an electrically operated optical shutter disposed between protective outer polycarbonate layers. The outer polycarbonate layers protect the optical shutter from impact and from ultraviolet radiation degradation. The structure is useful as a security window in prisons and may be electrically operated to control the transmission of light therethrough.

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Linda Barbee, "Chameleon Glass", Glass Magazine, Nov. 1988, pp. 76-77.

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