Method, diaphragms and optical receiving devices for...

Details Method, diaphragms and optical receiving devices for... Method, diaphragms and optical receiving devices for...

2006-03-29

2010-10-19

Lee, Michael G (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S454000, C250S23700G, C359S739000

Reexamination Certificate

active

07815118

ABSTRACT:
A method for improving the depth of field in the detection of a linear optical code includes simultaneously forming two or more overlapped equally focused but differently diaphragmed in phase images of an optical code onto a linear sensor. Diaphragms and optical receiving devices suitable to implement the method are described.

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International Search Report dated Apr. 25, 2006 for European Patent Application No. 05425850.4.
Extended European Search Report dated Jun. 19, 2006 for European Patent Application No. 05425850.4.

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