Compositions – Light transmission modifying compositions
Patent
1980-06-26
1982-03-02
Trousof, Natalie
Compositions
Light transmission modifying compositions
252584, 252587, 350312, F21V 912, G02B 520
Patent
active
043177514
ABSTRACT:
An ultraviolet optical filter is provided having a first filter element including a 2,7-dimethyl-diaza-(3,6)-cycloheptadien-(1,6)-perchlorate and second filter element including a crystal of thallium doped potassium iodide. A method for filtering light is also disclosed.
REFERENCES:
patent: 2128110 (1938-08-01), Wilson
patent: 3801179 (1974-04-01), Wisse et al.
Bruga et al., "Band Pass Filter for the 2537 A Mercury Line", J. Sci. Instrum., 1966, vol. 43, pp. 341-342.
Kraushaar Robert J.
Ward Kevin B.
International Telephone and Telegraph Corporation
O'Halloran John T.
Pepper Frederick W.
Trousof Natalie
Van Der Sluys Peter C.
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