Spectrographic apparatus with chopper means located in the sampl

Details Spectrographic apparatus with chopper means located in the sampl Spectrographic apparatus with chopper means located in the sampl

1978-01-26

1980-03-18

McGraw, Vincent P.

Optics: measuring and testing

By shade or color

With color transmitting filter

250351, 350275, 356440, G01J 348

Patent

active

041936957

ABSTRACT:
An optical system for a spectroscopic analyzer. The system has a light source, a detector and a sample cell connected in a line, and in the sample cell or between the sample cell and one of the other elements is a light chopper device. The light chopper has a rotating element in the form of a disc-shaped member or members which periodically block light from the light source and pass light during the times it is not blocked. The rotating element is driven by a motor on the outside of the structure.

REFERENCES:
patent: 2058939 (1936-10-01), Arey
patent: 2709751 (1955-05-01), Meyer
patent: 3171027 (1965-02-01), Wallack
patent: 3414729 (1968-12-01), Warren
patent: 3709600 (1973-01-01), Ganshorn
patent: 3715153 (1973-02-01), Schunck et al.
patent: 3729264 (1973-04-01), Simazaki et al.
patent: 3966333 (1976-06-01), Marcus
"On-Line Far-Infrared Michelson Interferometry in a Time-Shared Mode"; Gayles, Jr., et al.; IBM J. Res. Develop. vol. 14, #1; Jan. 1970; pp. 25-32.

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