Light transmitting window assembly

Details Light transmitting window assembly Light transmitting window assembly

1983-08-16

1985-06-04

Corbin, John K.

350312, 350321, 52171, G02B 500, G02B 502, G02B 524

Patent

active

045210772

ABSTRACT:
This invention provides a light transmitting assembly that can, at will, be changed from a state of transparency to one of translucency. It comprises two parallel spaced apart panes of transparent material, such as glass, with a film of polytetrafluoroethane, which is inherently translucent or opaque, disposed between. The assembly is rendered transparent by introducing a fluid into the assembly to substantially cover a surface of the film; the fluid having a refractive index corresponding to the refractive index of the film. The translucency is restored by removing the fluid.

REFERENCES:
patent: 2439553 (1948-04-01), Winn
patent: 2783682 (1957-03-01), Swenson
patent: 3711189 (1973-01-01), Novotny et al.
patent: 4044519 (1977-08-01), Morin et al.

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