Multi-focal vision system

Details Multi-focal vision system Multi-focal vision system

1995-12-15

1997-05-27

Hajec, Donald T.

Registers

Coded record sensors

Particular sensor structure

385120, 235473, G06K 710

Patent

active

056334877

ABSTRACT:
A machine vision system images bar code labels moving through a horizontal plane at variable object distances within the system's object depth of field Z .sub.obj with a plurality of sequential line images, each with different object lengths which gradate Z .sub.obj into plural focused object planes, and the object plane within which the bar code label lies provides a focused optical image of the bar code to a multilinear photodetector which transduces the focused optical image into a corresponding electrical signal for further processing.

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