Automatic shutter system

Details Automatic shutter system Automatic shutter system

1984-09-14

1987-03-03

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

2504611, 356418, 364498, G01J 302

Patent

active

046471995

ABSTRACT:
A software controlled automatic shutter is described which minimizes ultraviolet irradiation damage to optical components from a high intensity spectrophotometric light source. The shutter automatically opens when measurements are being made and closes when the photometer system is idle. The digital control system may be self contained so as to avoid complication of the main computer.

REFERENCES:
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patent: 4140394 (1979-02-01), Roos
patent: 4262205 (1981-04-01), Abu-Shumays
patent: 4291230 (1985-09-01), Heiss
patent: 4310243 (1982-01-01), Brown et al.
patent: 4319842 (1982-03-01), Priarone et al.
patent: 4455097 (1984-06-01), Ichikawa et al.
Wood et al., American Laboratory, V. 11, N. 3, Mar., 1979, pp. 16-29.
Ratzlaff et al., Anal. Chem., V. 50, N. 13, Nov. 1978, pp. 1799-1804.

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