Method for producing optical baffling material using pulsed elec

Details Method for producing optical baffling material using pulsed elec Method for producing optical baffling material using pulsed elec

1977-01-17

1978-05-02

Dixon, Harold A.

Radiant energy

Irradiation of objects or material

Irradiation of semiconductor devices

250510, 350276R, G02B 2700, A61K 2702

Patent

active

040876950

ABSTRACT:
A method for producing durable optical baffling materials comprising poling to a mirror finish the surface of a starting material, preferably having a very fine-grained structure, and then bombarding the surface of the starting material with low energy (0 to 50 keV) pulsed electrodes at a pulse length of about 0.1 microseconds. A fluence of 0.5 cal/cm.sup.2 renders the surface completely black in appearance, retaining none of its initial mirror-like properties.

REFERENCES:
patent: 2702863 (1955-02-01), Koch
patent: 3354064 (1967-11-01), Letter

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