Compositions – Light transmission modifying compositions
Patent
1984-06-05
1986-11-11
Terapane, John F.
Compositions
Light transmission modifying compositions
350311, 350353, 372 21, 307425, G02B 528, G02F 101, H01S 310, H03F 700
Patent
active
046221743
ABSTRACT:
A transparent protective laser shield and a method for forming the same are provided in which the shield is adapted to be interposed between a laser beam and a viewer for adjustably absorbing more than one narrow band radiation from laser beams while transmitting radiation in a broader band surrounding the narrow band laser beams. A transparent host material comprising a crystalline or amorphous glassy or plastic material having substantial transmission properties of optical radiation has introduced therein a plurality of chromophores selected from a porphyrin complex which has been modified by a metal providing metallo-porphyrin complexes in the transparent material which absorbs optical radiation at predetermined narrow band wave lengths located within the selected broad band wave length passed by the transparent host material. The predetermined narrow band wave lengths absorbed in the transparent material is adjusted to match the desired laser wave lengths by adding radical groups to the metallo-porphyrin complexes to match the absorption bands in the transparent material forming the transparent protective laser shield to desired laser wave lengths. The viewer is enabled to see through the transparent laser shield but is protected from the laser beams which are absorbed by the shield to protect the viewer.
REFERENCES:
patent: 2155038 (1939-04-01), Davies
patent: 2861005 (1958-11-01), Siegel
patent: 3091618 (1963-05-01), Fleysher
patent: 3148933 (1964-09-01), Randall
patent: 3291746 (1966-12-01), Donoian
patent: 3687863 (1972-08-01), Wacher
patent: 3696263 (1972-10-01), Wacher
patent: 3743964 (1973-07-01), Drexhage
patent: 3853783 (1974-12-01), Tucker
patent: 3900323 (1975-08-01), MacLeish
Yardley, et al., "Laser-Produced Ultrafine Powders and Appl.", Reza Kenkyu, 12(7) 394-400, 1984.
Huang, et al., "Electronic Transitions of Vanadyl Phthalocyanine", Chemical Physics, 65 (1982) 205-216.
Kivits, et al., "Vanadyl Phthalocyanine . . . ", Appl. Phys., A26, 101-105 (1981).
Pyatosin, "Study of the Photophysics", Opt. Spectrosc., (USSR) 52(2) Feb. 1982, 162-166.
Varnavskii, et al., "Self-Synchronization of Laser", Sov. Tech. Phys. Lett., vol. 2, No. 10, Oct. 1976.
Byteva, et al., "Quenching of Sensitized Luminescence", Russ. J. Phys. Chem., 56(7) 1982, pp. 1056-1058.
Morinaka, et al., "Optical Recording Media . . . ", Appl. Phys. Lett., 43(6), 15, Sep. 1983, pp. 524-526.
Shirai, et al., "Functional Metal-Porphyrazine . . . ", Makromol. Chem., 180, 2073-2084 (1979).
Gupta Amitave
McKoy Vincent
Barnes Engineering Company
Kilby Catherine S.
Terapane John F.
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