Two window optical scanner

Details Two window optical scanner Two window optical scanner

2005-02-15

2005-02-15

Frech, Karl D. (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S462140, C235S462170, C235S462300, C235S462360, C235S462370, C235S462380, C235S462390, C235S476000

Reexamination Certificate

active

06854655

ABSTRACT:
The invention relates to a scanning device for reading bar code symbols, wherein the scanning device comprises a housing having a substantially horizontal surface and a substantially vertical surface. A motor rotates a polygon mirror, which reflects a light beam from a light source and redirects it toward a mirror array and out a window in the substantially horizontal window. Another motor rotates another polygon mirror, which reflects a light beam from a second light source and redirects it toward a second mirror array and out a window in the substantially vertical surface. A plurality of sensors detects light reflected back from a bar code and generates a plurality of electrical signals proportional to the intensity of the reflected light.

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