Color measuring instrument with integrating sphere

Details Color measuring instrument with integrating sphere Color measuring instrument with integrating sphere

1989-01-05

1990-06-12

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

356323, 356446, 356236, 250228, G01J 308, G01J 342

Patent

active

049327798

ABSTRACT:
In a color measuring instrument, an integrating sphere is used to illuminate the sample and fiber optics are used to carry light diffusely reflected from the sample and from an interior wall of the sphere to a spectrometer. The transmitting ends of the fiber optic bundles are fixed in the housing of the spectrometer as entrance slits for the spectrometer, which includes a fixed grating and one or two arrays of photodetectors to detect the spectra dispersed by the grating from light received from the two transmitting ends.

REFERENCES:
patent: 3874799 (1975-04-01), Isaacs et al.
patent: 4060327 (1977-11-01), Jacobowitz et al.
patent: 4247202 (1981-01-01), Failes
patent: 4268170 (1981-05-01), Flint
patent: 4375919 (1983-03-01), Busch
patent: 4487504 (1984-12-01), Goldsmith

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