Laser-attenuative optical filter

Details Laser-attenuative optical filter Laser-attenuative optical filter

1992-07-21

1993-12-21

Tucker, Philip

Compositions

Light transmission modifying compositions

252587, 252589, 359350, 359356, 359357, 359885, F21V 900, F21V 904, G02B 522

Patent

active

052718727

ABSTRACT:
An optical filter for absorbing neodymium YAG-doubled laser radiation at 532 nanometers, comprising a polymeric matrix of transparent polycarbonate containing platinum deuteroporphyrin IX dimethyl ester, has an optical density of 1.8 at 532 nm while having a photopic luminous visible transmission of 53.8%. Optionally, the filter may contain other additives for absorption at other laser wavelengths, such as vanadyl tetra-4-tert-butylphthalocyanine for absorption of ruby laser radiation at 694 nanometers and tris(p-diethylaminophenyl)aminium hexafluoroantimonate for absorption of neodymium YAG laser radiation at 1064 nanometers.

REFERENCES:
patent: 3341464 (1967-09-01), Susi et al.
patent: 3400156 (1968-09-01), Milionis et al.
patent: 3687863 (1972-08-01), Wacher
patent: 3853783 (1974-12-01), Tucker
patent: 4622174 (1986-11-01), McKoy et al.
patent: 4657345 (1987-04-01), Gordon
patent: 4885114 (1989-12-01), Gordon et al.
patent: 4933110 (1990-06-01), Tucker
patent: 5005926 (1991-04-01), Spielberger
Neunhoeffer et al., Ber., 92, 245 (1959).
Griffiths et al., Mol. Cryst. Liq. Cryst., 33, 149, 156-57 (1970).
Grigg et al., Chemical Communications, 1970, 1237.
Buchler, "Synthesis and Properties of Metalloporphyrins", in Dolphin (ed.), The Porphyrins, vol. I, pp. 389-483 (1978) Law, Inorg. Chem., 24, 1778 (1985).
Milgrom, Polyhedron, 4, 1661 (1985).

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