Optics: measuring and testing – Refraction testing – Prism engaging specimen
Patent
1977-06-02
1980-01-01
Clark, Conrad J.
Optics: measuring and testing
Refraction testing
Prism engaging specimen
G01N 2146
Patent
active
041814347
ABSTRACT:
The effect of angular errors or mismatching indices of refraction of color-compensation prisms of Abbe refractometers can be virtually eliminated by decentration of the lens used to image light on the refractometer reticle.
REFERENCES:
patent: 3267795 (1966-08-01), Goldberg
American Optical Corporation
Clark Conrad J.
Duggan Jeremiah J.
Schneeberger Stephen A.
Spencer Alan H.
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