Heat ray screening glass

Details Heat ray screening glass Heat ray screening glass

1990-06-05

1992-07-14

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428212, 428213, 428426, 428432, 428698, 428699, 428701, 428702, B32B 1706

Patent

active

051301830

ABSTRACT:
A heat ray screening glass according to this invention comprises a sheet glass, a first layer covered on the sheet glass and which is 55 nm to 70 nm thick and has a refractive index of 1.8 to 2.1 at a wavelength of 550 nm, a second layer covered on the first layer and consisting of a TiO.sub.2 film which is 30 nm to 55 nm thick and has a refractive index of 2.3 to 2.5 at a wavelength of 550 nm, and a third layer covered on the second layer and which is 45 nm to 60 nm thick and has a refractive index of 1.8 to 2.1 at a wavelength of 550 nm, wherein the change in color of the light transmitted through and reflected on the sheet ray screening glass is very little, and a comparative high visible light transmittance and a low visible light reflectivity in the glass can be obtained.

REFERENCES:
patent: 4377613 (1983-03-01), Gordon
patent: 4690871 (1987-01-01), Gordon
patent: 4834857 (1989-05-01), Gillery
patent: 4900630 (1990-02-01), Suzuki
patent: 4940636 (1990-07-01), Brock et al.

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