Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2008-07-08
2008-07-08
Kim, Ahshik (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462220, C235S462420
Reexamination Certificate
active
07395971
ABSTRACT:
A method of equalizing the illumination produced by a planar laser illumination array within a planar laser illumination and (electronic) imaging system, comprising the steps of: providing an image formation and detection module having imaging optics with a field of view (FOV) focused upon an image detecting array; providing a planar laser illumination array having a plurality of planar laser illumination modules, each planar laser illumination module producing a planar laser beam component during image formation and detection operations, which are combined to produce a composite planar laser illumination beam extending through a working range of said FOV, wherein said working range includes both near and far fields, if the near field illumination is brighter then the far field illumination: displacing a first portion of the planar illumination modules in a first direction perpendicular to said FOV and a second portion of the planar illumination modules in a second direction opposite to said first direction, angling each planar laser illumination beam component to overlap at said far field, whereby the power density incident on the near field is reduced; and if the far field illumination is brighter then the near field illumination: displacing a first portion of the planar illumination modules in a first direction perpendicular to the FOV and a second portion of the planar illumination modules in a second direction opposite to said first direction, angling each planar laser illumination beam component to overlap at the near field, whereby the power density incident on the far field is reduced.
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Knowles C. Harry
Schnee Michael
Zhu Xiaoxun
Kim Ahshik
Metrologic Instruments Inc.
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