Optical arrangement for photometrical analysis measuring devices

Details Optical arrangement for photometrical analysis measuring devices Optical arrangement for photometrical analysis measuring devices

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

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