Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2007-08-07
2007-08-07
Cherry, Euncha P. (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
C359S206100
Reexamination Certificate
active
11088923
ABSTRACT:
A laser scanning unit is provided which can use an inexpensive and easily manufactured fθ lens and which can further ensure good precision in adjustment. The laser scanning unit can repeatedly scan focused light onto a scan line, and includes a multi-beam light source for emitting parallel light, first and second cylindrical lenses for focusing the parallel light in a sub-scanning direction and a main scanning direction, respectively, a polygon mirror for deflecting the focused light in the main scanning direction, and an fθ lens for focusing the deflected light on the scan line.
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Cherry Euncha P.
Roylance Abrams Berdo & Goodman LLP
Samsung Electronics Co,. Ltd.
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