Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2011-05-03
2011-05-03
Phan, James (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
C359S822000, C347S232000
Reexamination Certificate
active
07936494
ABSTRACT:
An optical scanning device includes a light source, a deflector, and an optical system including an elongated optical element that focuses deflected luminous flux on a surface of a medium to be scanned. The optical element is supported by a first elastic member and reinforced by a reinforcing member arranged outside a beam effective range along a length of the optical element. The optical element is pressed by a pressing member in a pressing direction orthogonal to a deflection direction, and biased by a second elastic member in a direction opposite to the pressing direction. The pressing member and the second elastic member control a posture of the optical element at a substantially central part in a main scanning direction.
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Harness & Dickey & Pierce P.L.C.
Phan James
Ricoh Company Limited
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