Detection device, particularly for surface checking cigarettes

Details Detection device, particularly for surface checking cigarettes Detection device, particularly for surface checking cigarettes

1993-07-27

1995-04-04

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250223R, 209536, G01N 2188

Patent

active

054040230

ABSTRACT:
Cigarettes on a conveyor are surface checked, in at least one observation station, by means of at least one optical unit having a light source for directing light rays on to one half of the outer surface of the cigarette, and a pair of prismatic bodies facing respective quarters of the surface of the cigarette, and which provide for directing all the rays reflected from the aforementioned half of the surface into one beam directed towards one monitoring unit.

REFERENCES:
patent: 4645080 (1987-02-01), Scopatz
patent: 4645921 (1987-02-01), Heitmann et al.

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