Ultra-black film and method of manufacturing the same

Details Ultra-black film and method of manufacturing the same Ultra-black film and method of manufacturing the same

1990-10-11

1992-05-05

Arnold, Bruce Y.

Optical: systems and elements

Having significant infrared or ultraviolet property

148253, 362800, G02B 522

Patent

active

051113350

ABSTRACT:
An ultra-black film is disclosed, which essentially consists of a base, a Ni-P alloy layer formed on said base and a phosphate layer formed on said Ni-P layer, the spectral reflectance of said ultra-black film being 0.04 to 0.4%. The invention provides an LED module having an inner surface provided with an ultra-black film.

REFERENCES:
patent: 3208447 (1965-09-01), Laszlo
patent: 3357854 (1967-12-01), Hays
patent: 3364066 (1968-01-01), Karlson et al.
patent: 4122239 (1978-10-01), Riboulet et al.
patent: 4209008 (1980-06-01), Lemkey et al.
patent: 4233107 (1980-11-01), Johnson, Sr.
patent: 4511614 (1985-04-01), Greeson et al.
patent: 4984855 (1991-01-01), Horiuti et al.
C. E. Johnson "Black Electroless Nickel Surface Morphologies with Extremely High Light Absorption Capacity" Metal Finishing, vol. 78, No. 7, pp. 21-25.
Patent Abstracts of Japan, vol. 3, No. 41, Apr. 10, 1979, p. 55.

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