Wavelength selective applied films with glare control

Details Wavelength selective applied films with glare control Wavelength selective applied films with glare control

1998-08-24

2000-03-07

Henry, Jon

Optical: systems and elements

Having significant infrared or ultraviolet property

Multilayer filter or multilayer reflector

359585, 359588, 359589, 359590, 428623, 428336, F21V 904, G02B 528

Patent

active

060348135

ABSTRACT:
A solar control film having low visible light transmittance and low visible light reflectance is comprised of a first sheet of transparent substrate material having deposited thereon a solar-load-reduction film for preferentially reducing infrared light energy transmitted through the film, and a second sheet of transparent substrate material having deposited thereon a thin, transparent film of metal effective to partially block light transmittance, wherein the first sheet of transparent substrate and the second sheet of transparent substrate are separated by an optically massive layer that prevents the constructive and destructive interference of reflected light. A preferred embodiment of a solar control film includes, in order, a pressure-sensitive adhesive layer, a polyethylene terephthalate layer, a Fabry-Perot interference filter layer, an adhesive layer, a grey metal layer, another polyethylene terephthalate layer, and a hardcoat layer. The preferred solar control film provides wavelength selectivity in the infrared range while controlling visible light transmission and minimizing visual light reflectance.

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