Four color tomato grader

Details Four color tomato grader Four color tomato grader

1978-02-08

1980-09-30

Corbin, John K.

Optics: measuring and testing

By shade or color

With sample responsive to plural colors applied simultaneously

250226, 209558, 209577, G01J 346, B07C 5342, G01J 350

Patent

active

042252423

ABSTRACT:
A produce grading system that detects the light reflectances from an object in four color bands. Two bands are in the visible range and two are in the invisible range. By means of comparing various color combinations the system looks for the presence of a desired color, an undesired color, and determines if the object is vegetable or nonvegetable matter.

REFERENCES:
patent: 4105123 (1978-08-01), Irving et al.

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