Optical scanning arrangement and article useful therewith

Details Optical scanning arrangement and article useful therewith Optical scanning arrangement and article useful therewith

G - Physics

06

K

354/56, 352/53.7

G06K 7/10 (2006.01)

Patent

CA 1075815

ABSTRACT An article of manufacture to be read by optical scanning equipment comprising an information medium on which are a plurality of concentric annuli in two optically contrasting colors representing binary ones and binary zeroes, the pattern of ones and zeroes differing on either side of an imaginary diameter line.

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