Lens system for optically recorded storage card reader

Details Lens system for optically recorded storage card reader Lens system for optically recorded storage card reader

1984-07-06

1986-12-02

Trafton, David L.

Registers

Coded record sensors

Particular sensor structure

235454, 250569, 365215, G06K 710

Patent

active

046266712

ABSTRACT:
An optical storage card reading system using a cylindrical lens is disclosed which provides for a large viewing cone at the surface of the optical storage card thus improving the ability to read optically recorded data despite scratches or dust on the optical storage card.

REFERENCES:
patent: 3742225 (1973-06-01), Sick et al.
patent: 3812328 (1974-05-01), Tramposch
patent: 3812459 (1974-05-01), MacNeill et al.
patent: 4408120 (1983-10-01), Hara et al.
patent: 4505537 (1985-03-01), Funato
patent: 4510383 (1985-04-01), Ruppender

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