Arrangement for determining the spectral characteristic of the r

Details Arrangement for determining the spectral characteristic of the r Arrangement for determining the spectral characteristic of the r

1985-04-11

1987-04-28

LaRoche, Eugene R.

Optics: measuring and testing

Refraction testing

356328, G01N 2141

Patent

active

046609741

ABSTRACT:
The invention is directed to an arrangement for determining the spectral characteristic of the refractive index of a liquid or a gas wherein the specimen is enclosed between two boundary surfaces spaced apart between 1 and 50 .mu.m. The surfaces are at least approximately parallel to each other. The boundary surfaces cause interferences when illuminated with white light passing through the surfaces. The interferences are measured by a spectrometer in their wavelength-dependent course and are thereafter evaluated.

REFERENCES:
patent: 4377343 (1983-03-01), Monson

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