Simple process for anti-reflection coating with multiple metal f

Details Simple process for anti-reflection coating with multiple metal f Simple process for anti-reflection coating with multiple metal f

1997-12-22

1999-06-29

Speer, Timothy M.

Stock material or miscellaneous articles

Composite

Of quartz or glass

428428, 428433, 428434, 428457, 428461, 428469, 428472, 359359, 359586, 359588, B32B 1700

Patent

active

059166843

ABSTRACT:
An anti-reflection screen filter is provided that includes four consecutively applied layers to a substrate. A first layer, furthest from the substrate, is arranged on an underlying second layer and comprises an oxide material having a refractive index within the approximating range of 1.46 to 1.50 at a wavelength of 520 nm. The second layer is arranged on an underlying third layer and is formed by a metal having a refractive index within the approximating range of 1.5 to 4.0 at a wavelength of 520 nm. The third layer is arranged on an underlying fourth layer and is formed by a metal having a refractive index within the approximating range of 0.2 to 1.4 at a wavelength of 520 nm. The fourth layer is disposed on the front surface of a substrate and is formed by a metal having a refractive index within the approximating range of 1.5 to 4.0 at a wavelength of 520 nm.

REFERENCES:
patent: 4282290 (1981-08-01), Pellicori
patent: 4996105 (1991-02-01), Oyama

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