Device for measuring backscattered radiation using a frequency s

Details Device for measuring backscattered radiation using a frequency s Device for measuring backscattered radiation using a frequency s

1991-06-25

1992-07-14

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

21912162, G01F 350

Patent

active

051305330

ABSTRACT:
A device for measuring the radiation returned from a material treated by means of an optical radiation source can be inserted onto and removed from the beam path of the optical radiation source. An optical deflecting device guides the radiation of the optical radiaton source out of its beam path and subsequently guides it back onto the original beam path. The optical deflecting device has at least one element which reflects the radiation of the optical beam source and transmits the returned radiation, and a detector for detecting the returned radiaton being arranged behind the element.

REFERENCES:
patent: 3781700 (1973-12-01), Hansch et al
patent: 3836263 (1974-09-01), Rickert
patent: 3902130 (1975-08-01), Pike
patent: 3970360 (1976-06-01), Kersten et al.
patent: 4181898 (1980-01-01), McAllister
patent: 4400056 (1983-08-01), Cielo

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