Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2008-12-04
2011-12-13
Phan, James (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
C359S204200, C359S205100, C359S216100
Reexamination Certificate
active
08077368
ABSTRACT:
Synchronization detecting units detect synchronization signals by receiving the light beam deflected to one side of a light source on one side of an optical deflector and receiving the light beam deflected to an opposite side of an optical axis of a scanning optical system from the light source on the other side of the optical deflector. Photodetectors that detect the synchronization signals are arranged on the opposite side of an optical axis of a scanning optical system from the light sources and on a side closer to the scanning optical system that detects the synchronization signals by receiving the light beam deflected to the light source.
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Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Phan James
Ricoh Company Limited
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