Optical: systems and elements – Having significant infrared or ultraviolet property – Multilayer filter or multilayer reflector
Patent
1997-05-27
2000-08-15
Chang, Audrey
Optical: systems and elements
Having significant infrared or ultraviolet property
Multilayer filter or multilayer reflector
359360, 359350, 359585, 359588, 359589, 428336, F21V 904, G02B 808, G02B 110, B32B 1504
Patent
active
061045306
ABSTRACT:
Transparent laminates which have high transparency and, moreover, excellent electromagnetic shielding characteristics and near-infrared cutting-off characteristics, and optical filters for displays using these transparent laminates. These transparent laminates are formed by laminating a transparent electrically conductive layer composed of high-refractive-index transparent film layers (B) and metal film layers (C) consisting of silver or a silver-containing alloy on one major surface of a transparent substrate (A) in such a way that a repeating unit comprising a combination of one high-refractive-index transparent film layer (B) and one metal film layer (C) is laminated three times or more, and further laminating one high-refractive-index transparent film layer (B) thereon. The transparent laminate has a sheet resistance of not greater than 3 .OMEGA./sq., a visible light transmittance of not less than 50%, and a light transmittance of not greater than 20% in a wavelength region longer than 820 nm. Optical filters for displays which serve to block leakage electromagnetic waves and near-infrared light from plasma displays can be acquired by using such a transparent laminate.
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Fukuda Shin
Koyama Masato
Oi Ryu
Okamura Tomoyuki
Yamazaki Fumiharu
Chang Audrey
Mitsui Chemicals Inc.
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