Glass having controllable infrared transmission

Details Glass having controllable infrared transmission Glass having controllable infrared transmission

1985-10-31

1987-08-04

Swisher, Nancy

Stock material or miscellaneous articles

Composite

Of quartz or glass

428426, 428433, 428432, 428698, 428701, B32B 1500, B32B 1706

Patent

active

046845755

ABSTRACT:
A glass sheet is provided with a coating which will automatically reflect infrared radiation if the ambient temperature is above about 45.degree. F.-60.degree. F. and will transmit infrared radiation if it is below about 45.degree. F.-60.degree. F. Such a coating is placed on the exterior surface of the glass. Additionally, the interior of the glass may be provided with a controllable infrared transmittable or reflective layer of material which is activated by means of an electric current transmitted therethrough and which will reflect infrared energy if so energized, but otherwise will transmit such infrared energy. This layer of material is preferably placed on the interior of the glass surface and activated during the nighttime period so that infrared energy is not transmitted outwardly. Alternatively, the controllable infrared transmittable or reflective layer of material may be positioned both on the exterior and interior of the glass surface.

REFERENCES:
patent: 3946128 (1976-03-01), Spanoudis
patent: 3978272 (1976-08-01), Donley
patent: 4129434 (1978-12-01), Plumat et al.
patent: 4294520 (1981-10-01), Inoue et al.
patent: 4324622 (1982-04-01), Deb
patent: 4400412 (1983-08-01), Scanlon et al.
patent: 4401690 (1983-08-01), Greenberg
patent: 4567104 (1986-01-01), Wu
patent: 4573768 (1986-03-01), Polak et al.

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