Apparatus for rapid colorimetry on different samples

Details Apparatus for rapid colorimetry on different samples Apparatus for rapid colorimetry on different samples

1987-08-05

1989-06-13

Evans, F. L.

Optics: measuring and testing

By shade or color

Trichromatic examination

356407, 356420, G01J 350

Patent

active

048386979

ABSTRACT:
An apparatus for rapid colorimetry on different samples which has a transmitter for irradiating or through-radiating the particular sample and a receiver for receiving the radiation reflected or transmitted by the sample, as well as a filter arrangement. Also included is a computer for evaluating the signals from the receiver. The transmitter is formed by several semiconductor radiation sources, which irradiate in different spectral ranges and whose optical radiation is combined by means of a filter unit and is deflected onto the sample by a lens arrangement. A control unit controls the semiconductor radiation sources in successive pulsewise intervals. The control unit also supplies a signal permitting an association of the receiver signals to the radiation emitted in the different spectral ranges.

REFERENCES:
patent: 3910701 (1975-10-01), Henderson et al.
patent: 4180330 (1979-05-01), Kotera et al.
patent: 4603976 (1986-08-01), Fetzer et al.

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