Reference radiation source in a device for measuring the radiati

Details Reference radiation source in a device for measuring the radiati Reference radiation source in a device for measuring the radiati

1977-07-05

1978-05-02

Dixon, Harold A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250334, 250338, G01J 100

Patent

active

040876918

ABSTRACT:
A device for measuring the radiation from an object by means of an optical system. The optical system comprises scanning devices for horizontal and vertical scanning with refracting rotating prisms. At least one radiation reference source is arranged in the optical system along the path of radiation from the scanned object so that the radiation source can be scanned by the rotating prisms at intervals which are not coincident with the interval when the object is scanned.

REFERENCES:
patent: 3612879 (1971-10-01), Ohman
patent: 3617106 (1971-11-01), Bjork
patent: 3631248 (1971-12-01), Johnson

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