Optical code reader

Details Optical code reader Optical code reader

1989-04-27

1993-02-02

Weinhardt, Robert

Registers

Coded record sensors

Particular sensor structure

235472, G06K 710

Patent

active

051840049

ABSTRACT:
Emitted light of a light emitting device (3) placed interiorly of a transparent cylindrical member (1) is reflected by a flat mirror (8) formed on an end of the transparent cylindrical member (1), then the reflected light is focused on a bar code (41) to be detected by an elliptical mirror (11) formed on the side (11A) of the cylindrical member (1), and reflected light from the bar code (41) is converged on a light receiving device (2) disposed interiorly of the cylindrical member (1) by a convex lens (9) which is formed on the other end of the transparent cylindrical member (1).

REFERENCES:
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patent: 4675531 (1987-06-01), Clark et al.
patent: 4743745 (1988-05-01), Kachi et al.
patent: 4797551 (1989-01-01), Ferrante
patent: 4825057 (1989-04-01), Swartz et al.
patent: 4851667 (1989-07-01), Mergenthaler et al.
patent: 4877949 (1989-10-01), Danielson et al.

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