Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2005-12-29
2009-11-10
Koyama, Kumiko C (Department: 2887)
Registers
Coded record sensors
Particular sensor structure
C235S462420
Reexamination Certificate
active
07614563
ABSTRACT:
An illumination system and method for use in a handheld symbology reader that employs a grid of reflecting elements applied to a transparent plate adapted to project a highly diffuse and uniform illumination on a subject. The grid defines a geometry with a large number of transparent spaces between grid elements through which an image of the subject can be acquired. A light source array is configured to project light into the grid at a right angle via a light pipe having a distal beveled edge or side projecting light sources. Another light source may be employed to illuminate second light pipe with a chamfered edge to create low-angle illumination.
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Equitz William H.
Gerst Carl W.
Nunnink Laurens
Cognex Technology and Investment Corporation
Koyama Kumiko C
Loginov William A.
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