Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2005-01-11
2005-01-11
Le, Thien M. (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S472010
Reexamination Certificate
active
06840449
ABSTRACT:
A holographic laser scanner of ultra-compact design capable of reading bar and other types of graphical indicia within a large scanning volume using holographic optical elements and visable laser diodes. The holographic optical elements are arranged on the scanning disc in such a manner so that none of the laser scanning planes generated within the 3-D scanning volume of the system are spatially and temporally coincident with any other laser scanning plane within the 3-D scanning volume. This novel feature of the present invention ensures that there is substantially zero cross-talk at the plurality of photodetectors provided within the system, significantly improving the performance of the system.
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Check Frank
Dickson LeRoy
Groot John
Knowles C. Harry
Le Thien M.
Metrologic Instruments Inc.
Taylor April
Thomas J. Perkowski Esq., P.C.
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