Filter for protection against radiation, especially with regard

Details Filter for protection against radiation, especially with regard Filter for protection against radiation, especially with regard

1977-03-11

1980-04-29

Evans, F. L.

Surgery

Truss

Pad

128372, 252300, 350 16, 350311, G02B 520

Patent

active

042003601

ABSTRACT:
A radiation shield for promoting direct pigmentation of human skin by solar radiation comprising a filter made from a plurality of layers of synthetic plastic, e.g., polyester or inorganic glass, each filtering different ranges of wave lengths. Substantially all wave lengths below 320 nm and above 450 nm are filtered out so that rapid tanning of the skin is effected without burning.

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Gibson et al., "The Ultra-violet and Visible Transmission of Various Colored Glasses," Tech. Papers of Bur. of Stand., Mar. 1920.
Alexander, "Absorption Filter Selection: How To", Optical Spectra, vol. 9, No. 8, Aug. 1975, pp. 29-33.

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