Illuminator for the spectroscopic observation of minerals, gems,

Details Illuminator for the spectroscopic observation of minerals, gems, Illuminator for the spectroscopic observation of minerals, gems,

1988-07-21

1990-03-06

Evans, F. L.

Optics: measuring and testing

Crystal or gem examination

356300, G01N 2187, G01J 300

Patent

active

049060937

ABSTRACT:
An illuminator for the spectroscopic illumination of minerals, gems, etc., in which a substance under examination is illuminated by means of a source of white light, comprises at least one optical fiber (22) for transmitting the illumination light, passed through the substance under examination, to an observation spectroscope (30).

REFERENCES:
patent: 3867032 (1975-02-01), Bruck
patent: 3989379 (1976-11-01), Eickhorst
patent: 4291975 (1981-09-01), Raccah

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