Optical inspection apparatus

Details Optical inspection apparatus Optical inspection apparatus

1978-02-02

1978-11-21

Knowles, Allen N.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Sorting cigarettes, cigars, or packages thereof

209564, 209587, B07C 5342

Patent

active

RE0298395

ABSTRACT:
The invention is concerned with an optical inspection apparatus for monitoring a continuously moving rod, such as a tobacco rod. The apparatus comprises a circular head through which the rod passes, a first set of fibre optic conductors the ends of which terminate at an inner peripheral surface of the head and which transmits light from a source to the head to illuminate the rod passing through the head, and a second set of fibre optic conductors the ends of which also terminate at an inner surface of the head to pick up light reflected from the rod passing through the head and transmit that light to a photosensitive element. The second set of conductors are divided into angularly spaced groups around the head and adjacent groups lead to separate photosensitive elements. Preferably the light picked up by diametrically opposite pairs of groups are combined.

REFERENCES:
patent: 2896636 (1959-07-01), Powell et al.
patent: 3334240 (1967-08-01), Black
patent: 3626196 (1971-12-01), Arnaudin

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