Fine positioning beam director system

Details Fine positioning beam director system Fine positioning beam director system

1982-01-18

1984-11-06

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

356244, 356328, G01J 342

Patent

active

044809131

ABSTRACT:
A spectrophotometer optical section is presented which employs a fine positioning beam director which corrects for any deflections of the output beam path and accurately positions the optical beam on the detector slit of the spectrograph. The detector slit is chosen to have a size slightly smaller than the size of the optical beam at the detector slit to have high slit throughput without introducing spurious absorption. The sample cells need not be rigidly mounted thereby enabling use of a sample cell and cell holder which allows quick, easy interchange of cells.

REFERENCES:
patent: 3551062 (1970-12-01), Brown
patent: 4227079 (1980-10-01), Dukes et al.
Hopkins et al., Proc. Soc. Photo-Opt. Instrum. Eng., vol. 191, 1979, pp. 48-55.

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