Thallium doped potassium iodide filter

Compositions – Light transmission modifying compositions

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Details

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.

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