Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1985-10-15
1987-11-17
LaRoche, Eugene R.
Optics: measuring and testing
For optical fiber or waveguide inspection
356338, 250574, G01N 2117
Patent
active
047071311
ABSTRACT:
An optical arrangement in photometrical measuring devices for use in fluorescence and absorption measurements, extinction, nephelometrical and turbidimetrical measurements comprises a light source for emitting a monochromatic radiation, a field aperture for said radiation, and lenses which focus said monochromatic radiation onto a sample material for being analyzed. The sample, in response to said monochromatic radiation emits a first radiation portion incorporating the measuring informations from said sample, and a second radiation portion not containing measuring information. An optical imaging system is provided for directing said first radiation portion onto a detector. A removable optical member for retaining the second radiation portion is provided adjacent the optical imaging system and has an aperture greater than the field aperture.
REFERENCES:
patent: 4027973 (1977-06-01), Kaye
LaRoche Eugene R.
Pascal Robert J.
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