Device for optically identifying objects

Details Device for optically identifying objects Device for optically identifying objects

1987-03-31

1988-09-13

Leung, Philip H.

Registers

Coded record sensors

Particular sensor structure

235454, 235490, 250569, G06K 710

Patent

active

047711655

ABSTRACT:
An identification code provided in relief on an object is read in that a radiation beam is obliquely incident on the surface on which the identification code is provided, and in that the identification code is observed by a detection system by means of the shadows thus cast.

REFERENCES:
patent: 4193540 (1980-03-01), Dougados et al.
patent: 4201338 (1980-05-01), Keller
patent: 4204638 (1980-05-01), Laude
patent: 4217487 (1980-08-01), Kjeer
patent: 4263504 (1981-04-01), Thomas
patent: 4625101 (1986-11-01), Hinks et al.

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