Optical card having a mirror section with a pair of auxiliary gu

Details Optical card having a mirror section with a pair of auxiliary gu Optical card having a mirror section with a pair of auxiliary gu

1993-06-10

1994-10-04

Hajec, Donald

Registers

Records

Particular code pattern

235454, 369 4426, 3692751, 3692753, G06K 1906

Patent

active

053528808

ABSTRACT:
The present invention provides an optical card wherein the irradiation position of laser beams is pulled back into an information recording section 1 in such a manner that the operation of recording or reproducing information can continue. In this optical card, information is recorded on or reproduced from a prescribed information recording section on a card surface in accordance with optical scanning along guide tracks provided in the card surface, and the optical card is provided with a mirror section arranged adjacent to the information recording section in the direction parallel to the direction of optical scanning of the information recording section. The optical card is characterized in that the mirror section is provided with at least one pair of curved auxiliary guide tracks that are connected to the guide tracks in the information recording section.

REFERENCES:
patent: 4885736 (1989-12-01), Horie

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