Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2009-07-31
2011-11-08
Pham, Hai C (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S259000, C359S224100
Reexamination Certificate
active
08054327
ABSTRACT:
An optical deflector of the present invention includes a movable mirror and torsion bars supporting the mirror and formed integrally with the mirror. The mirror reciprocatingly vibrates to reflect a light beam to thereby deflect it. The mirror is curved in the form of an arch in a section including at least the torsion bars. The mirror deforms little during vibration even if it is thin. Small power can cause such a thin mirror to vibrate with a large amplitude.
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“Silicon Torsional Scanning Mirror” by Kurt E. Petersen. IBM J. Res. Develop. vol. 24 No. 5. Sep. 1980.
Fujii Mitsumi
Satoh Yukito
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Pham Hai C
Ricoh & Company, Ltd.
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