Portable reflectance spectrometer

Details Portable reflectance spectrometer Portable reflectance spectrometer

1975-03-24

1977-08-23

Corbin, John K.

Optics: measuring and testing

For optical fiber or waveguide inspection

250339, 356 74, 356188, 356189, G01J 348

Patent

active

040436683

ABSTRACT:
A portable reflectance spectrometer is disclosed. The spectrometer essentially includes an optical unit and an electronic recording unit. The optical unit includes a pair of thermoelectrically-cooled detectors, for detecting total radiance and selected radiance projected through a circular variable filter wheel, and is capable of operating to provide spectral data in the range 0.4 .mu.m to 2.5 .mu.m without requiring conventional substitution of filter elements. The electronic recording unit essentially includes power supplies, amplifiers, and digital recording electronics designed to permit recordation of data on tape casettes. Both the optical unit and electronic recording unit are packaged to permit carriage as backpack items and thereby be manually portable.

REFERENCES:
patent: 3398285 (1968-08-01), Sachs
patent: 3409772 (1968-11-01), Wormser
patent: 3715163 (1973-02-01), Mitchell
patent: 3860818 (1975-01-01), Stalder et al.
patent: 3864037 (1975-02-01), Johnson
patent: 3923399 (1975-12-01), Brumley
Goldberg, SPIE Journal, vol. 9, Nov., 1970, pp. 22-31.

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