Measuring apparatus for characterizing a surface having color di

Details Measuring apparatus for characterizing a surface having color di Measuring apparatus for characterizing a surface having color di

1988-03-25

1989-02-07

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

356328, 356446, G01J 336, G01J 342, G01N 2147

Patent

active

048027634

ABSTRACT:
A measuring apparatus includes a freely moving measuring head which is connected to a stationary base unit via light conductors and an electrical cable. The radiation reflected from the sample is simultaneously measured at three different angles. For this purpose, three diode-array spectrometers are provided in the stationary base unit. The spectrum of the radiation illuminating the sample can be simultaneously measured with a fourth diode-array spectrometer.

REFERENCES:
patent: 3806256 (1974-04-01), Ishak
patent: 3999864 (1976-12-01), Mutter
patent: 4479718 (1984-10-01), Alman et al.
patent: 4583858 (1986-04-01), Lebling et al.
patent: 4598715 (1986-07-01), Machler et al.
patent: 4711580 (1987-12-01), Venable
patent: 4756619 (1988-07-01), Gerlinger et al.

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