Secure badge for infrared badge reader and process for making sa

Details Secure badge for infrared badge reader and process for making sa Secure badge for infrared badge reader and process for making sa

1984-05-08

1986-04-22

Arnold, Bruce Y.

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

350 11, B42D 1500

Patent

active

045837660

ABSTRACT:
An improved security badge is provided for use with an infrared badge reader. The badge is formed from a plurality of layers of PVC film which are laminated under appropriate conditions of heat and pressure to form an integral member. An infrared blocking material is disposed intermediate two of the layers. The non-blocking portions of the badge transmit between 0.90% and 1.25% infrared light.

REFERENCES:
patent: 3455577 (1969-07-01), Kikumoto
patent: 3640009 (1972-02-01), Komiyama
patent: 3802101 (1974-04-01), Scantlin
patent: 3871119 (1975-03-01), Mayer
patent: 3919447 (1975-11-01), Kilmer, Jr. et al.
patent: 4119361 (1978-10-01), Greenaway
patent: 4222662 (1980-09-01), Kruegle
patent: 4469725 (1984-09-01), Fischer et al.

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