Warm light reflector

Details Warm light reflector Warm light reflector

1978-07-13

1980-04-22

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250504, G02B 1314, G02B 520

Patent

active

041992180

ABSTRACT:
The invention relates to a "warm light reflector", which reflects infrared radiation and absorbs visible light. More specifically, a reflecting layer of, for example, gold carries a double layer of PbS, which is constructed of one smooth layer and of one fine-flocked layer of agglomerates.
The disclosed warm light reflector finds particular application in infrared measurement technology, preferably in a passive infrared alarm generator.

REFERENCES:
patent: 2564708 (1951-08-01), Mochel
patent: 3531313 (1970-09-01), Dates
patent: 4082413 (1978-04-01), Austin et al.
"Infrared Filters using Evaporated Layer of Lead Sulfide, Lead Solenoide, and Lead Telluride", Braithwaite, Jour. of Sci. Ins., vol. 32, Jan. 1955, pp. 10-11, 350-1.7.

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