Method of lightening radiation darkened optical elements

Details Method of lightening radiation darkened optical elements Method of lightening radiation darkened optical elements

1979-08-07

1980-11-04

Dixon, Harold A.

Radiant energy

Irradiation of objects or material

Irradiation of semiconductor devices

250341, 250504R, 350 9630, A61K 2702

Patent

active

042322286

ABSTRACT:
A method of lightening a radiation-darkened optical element in wich visible optical energy or electromagnetic radiation having a wavelength in the range of from about 2000 to about 20,000 angstroms is directed into the radiation-darkened optical element; the method may be used to lighten radiation-darkened optical element in-situ during the use of the optical element to transmit data by electronically separating the optical energy from the optical output by frequency filtering, data cooling, or interlacing the optic energy between data intervals.

REFERENCES:
patent: 1681991 (1928-08-01), Littleton
patent: 2855517 (1958-10-01), Rainier et al.
patent: 3173850 (1965-05-01), Hood
"Gamma Radiation . . . on Plastics", by John W. Ryan Nucleonics, vol. 11, No. 8, Aug. 1953, pp. 13-15.

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