Optical spectral analysis system and method

Details Optical spectral analysis system and method Optical spectral analysis system and method

1986-07-28

1990-11-20

Evans, F. L.

Optics: measuring and testing

For optical fiber or waveguide inspection

2504611, 356417, 356418, 356419, G01N 2159, G01N 2164

Patent

active

049714376

ABSTRACT:
The present invention is an optical spectral analysis system and method which includes transmitting light through a specimen to be analyzed. The light that is passed through the specimen is filtered. The filtering of the light is obtained by utilizing a revolving filter disk which filters the light from the specimen through a predetermined range of light wavelengths at least once per revolution. The disk is rotated by a motor. A photomultiplier tube, with associated circuitry, receives the filtered light and provides a signal representative of the intensity of the received filtered light. A computer converts the signal from the photomultiplier circuit to a spectral output.

REFERENCES:
patent: 3437411 (1969-04-01), Rudomanski et al.
patent: 3748044 (1973-07-01), Liston
patent: 3787695 (1974-01-01), West
patent: 3920334 (1975-11-01), Steichen et al.
patent: 4030829 (1977-06-01), Hooper
Khalil et al., Clinical Chemistry, vol. 27, No. 9, 1981, pp. 1586-1591.
Alpert, Clinical Instrument Systems, vol. 2, No. 8, Aug. 1981, pp. 1-5.

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