Wide aperture optical communications detector

Details Wide aperture optical communications detector Wide aperture optical communications detector

1976-01-26

1978-05-09

Safourek, Benedict V.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

350290, 350311, 350316, H04B 900

Patent

active

040888843

ABSTRACT:
Narrow-band detection of optical signals over a large field of view wherein the selective reflecting power of metallic vapors is employed. A modulated carrier signal to be detected is directed to a Brewster window of an enclosure containing a vapor such as mercury. Only the incident light of interest is reflected through an exit window and detected by means of a photo-multiplier.

REFERENCES:
patent: 3869618 (1975-03-01), Lax et al.
patent: 3891559 (1975-06-01), Rast et al.
patent: 3916182 (1975-10-01), Dabby et al.
B. Semitzky, "Narrowband Ultraviolet Vapor Filter," Jan. 1975, Applied Ops, pp. 238-243.

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