Process for marking an article

Details Process for marking an article Process for marking an article

1993-12-03

1995-03-28

Berman, Jack I.

Radiant energy

Coded record and readers; invisible radiant energy type

235468, 283 89, G06K 712

Patent

active

054019605

ABSTRACT:
Process for marking an article by means of a pattern, which contains geometrically encoded information and can be evaluated with optical means by irradiation with light, there being provided on the surface of the article in a spatial arrangement in relation to an information pattern which can be evaluated by means of irradiation with UV light but is not visible to a human viewer a further information pattern which can be evaluated by means of visible light, the evaluation of the information contained in the two markings being able to be performed exclusively by means of the information pattern which can be evaluated by irradiation with UV light.

REFERENCES:
patent: 3486006 (1969-12-01), Siegel
patent: 3500047 (1970-03-01), Berry
patent: 3760161 (1973-09-01), Lohne et al.
patent: 3852088 (1974-12-01), Godlewski et al.
patent: 4605846 (1986-08-01), Duret et al.
patent: 5206496 (1993-04-01), Clement et al.
European patent search for parent European patent application EP 93250332, pr. 21, 1994.

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