Patent
Credit card with magnifying lens
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TLDR
In this article, a magnifying lens is formed by machining a shallow cavity (204) in the rigid base; partially filling the cavity with a radiation curable liquid resin; impressing a lens pattern (36) on the surface of the resin with a die; and exposing the resin to radiation of sufficient intensity to cure the resin.Abstract:
A financial transaction card (10) adapted for use in reading externally stored information includes a transparent, substantially non-foldable rigid base and a strip for carrying machine readable information (14). The rigid base comprises a magnifying lens (24). The lens is formed by machining a shallow cavity (204) in the rigid base; partially filling the cavity with a radiation curable liquid resin; impressing a lens pattern (36) on the surface of the resin with a die; and exposing the resin to radiation of sufficient intensity to cure the resin.read more
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References
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Identification system safeguarded against misuse
TL;DR: An identification card with interior circuits, including memory means, for use in a credit or identification system, into which the user enters a secret number and then the input gate to that part of the memory means is destroyed for security purposes.
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