Ultraviolet light filter and filter system

Details Ultraviolet light filter and filter system Ultraviolet light filter and filter system

1991-12-19

1993-04-20

Arnold, Bruce Y.

Optical: systems and elements

Having significant infrared or ultraviolet property

Having ultraviolet absorbing or shielding property

359885, G02B 522

Patent

active

052047733

ABSTRACT:
An ultraviolet light filter is provided by implanting an ultraviolet light absorbing chemical species into an ultraviolet light transmissive substrate. Two such filters having gradient distributions may be overlapped and shifted relative to each other to provide adjustable attenuation.

REFERENCES:
patent: 4778263 (1988-10-01), Foltyn
patent: 4793668 (1988-12-01), Longstaff
patent: 5020887 (1991-06-01), Orler et al.
Standley et al, "Properties of Ion-Bombarded Fused Quartz for Integrated Optics", Applied Optics, vol. 11, pp. 1313-1316, Jun., 1972.

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