Analysis device for the automatic grading of products, in partic

Details Analysis device for the automatic grading of products, in partic Analysis device for the automatic grading of products, in partic

1996-03-29

1997-09-30

Font, Frank G.

Optics: measuring and testing

By monitoring of webs or thread

356234, 209579, 250223R, B03D 100, G01N 904, G01J 140

Patent

active

056731132

ABSTRACT:
The invention relates to an analysis device for the automatic grading of products, in particular of fruits or vegetables, comprising punctiform lighting means (4, 8, 12) capable of generating a polarised incident beam, means (19) for deflecting the polarised incident beam which are capable of forming a crosswise line of light, lateral reflection means (22, 23) capable of allowing the products to be lighted laterally, lower reflection means (28, 29) capable of allowing the lower face of the products to be lighted, and separation means (6, 10, 14) aligned on the optical axis of the polarised incident beam and suited to separating said incident beam and the backscattered depolarised light energy.

REFERENCES:
patent: 4281933 (1981-08-01), Houston et al.
patent: 4351437 (1982-09-01), Long
patent: 4666045 (1987-05-01), Gillespie et al.
patent: 4825068 (1989-04-01), Suzuki et al.
patent: 5017798 (1991-05-01), Murakami et al.
patent: 5216485 (1993-06-01), Bird et al.

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