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

1992-01-07

Arnold, Bruce Y.

Optical: systems and elements

Having significant infrared or ultraviolet property

148253, G02B 522

Patent

active

050796437

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 a no reflection optical terminator comprising a cap having a recessed formed in one end surface and containing an ultra-black film on the surface of said recess.

REFERENCES:
patent: 3208447 (1965-09-01), Laszlo
patent: 3357854 (1967-12-01), Hays
patent: 4122239 (1978-10-01), Riboulet et al.
patent: 4209008 (1980-06-01), Lemkey et al.
patent: 4233107 (1980-11-01), Johnson, Sr.
patent: 4361630 (1982-11-01), Johnson, Sr.
patent: 4511614 (1985-04-01), Greeson et al.
"Black Electroless Nickel Surface Morphologies with Extremely High Light Absorption Capacity" by Christian E. Johnson, National Bureau of Standards, Washington, D.C.; Metal Finishing, Jul. 1980; vol. 78.
Literature "S-780 (Continuous Electroless Nickel Plating Solution)" by Nippon Kanigen Co., Ltd.
Literature "Sumer" by Nippon Kanigen Co., Ltd.
Literature "Electroless Nickel Plating--Kanigen Process" by Nippon Kanigen Co., Ltd.
Patents Abstract of Japan, vol. 3, No. 41 (E-103), Apr. 10, 1979, p. 55 & JP-A-54 20 746 (Tokyo Shibaura Denki K.K.) 16-02-1979 * Abstract *.

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