Tamperproof security card

Details Tamperproof security card Tamperproof security card

1987-12-29

1989-09-26

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428 40, 428195, 428209, 428210, 4284111, 428915, 428916, 206459, 206807, 283 72, 283 77, 283112, 40454, B32B 328, B65D 7300, B42D 1500

Patent

active

048699462

ABSTRACT:
There is disclosed a unique tamperproof security card comprised of a transparent upper layer having narrow parallel lenses on the outer surface, and an image containing substrate, said two layers forming a lenticular system by which images on the substrate are selectively visible depending upon the angle from which the card is viewed. By incorporating into a selectively visible image the information necessary to verify the identify of the cardholder, e.g. the cardholder's photograph or signature, the card may be rendered substantially tamperproof.

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