Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2008-07-08
2008-07-08
Paik, Steven S. (Department: 2887)
Registers
Coded record sensors
Particular sensor structure
C235S454000, C235S462320
Reexamination Certificate
active
07395968
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 visible 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.
REFERENCES:
patent: 5498862 (1996-03-01), Edler
patent: 5555130 (1996-09-01), Marom et al.
patent: 5557093 (1996-09-01), Knowles et al.
patent: 6199759 (2001-03-01), Dickson et al.
Check Frank
Dickson LeRoy
Groot John
Knowles C. Harry
Metrologic Instruments Inc.
Paik Steven S.
Perkowski Esq. P.C. Thomas J.
Taylor April A
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