Optical: systems and elements – Deflection using a moving element – By moving a reflective element
Reexamination Certificate
2009-01-21
2009-10-20
Phan, James (Department: 2872)
Optical: systems and elements
Deflection using a moving element
By moving a reflective element
C359S199100, C359S199400, C359S200800, C310S311000
Reexamination Certificate
active
07605966
ABSTRACT:
An optical deflector includes a mirror having a reflective plane; a torsion bar extending outwardly from an end of said mirror; a support surrounding said mirror; a first piezoelectric element, one end of said first piezoelectric element being connected to said torsion bar, the other end of the first piezoelectric element being connected to and supported by said support, said first piezoelectric element having at least one piezoelectric cantilever, the cantilever including a supporting body and a piezoelectric body formed on the supporting body to exhibit bending deformation due to piezoelectricity when a driving voltage is applied to the piezoelectric body, said piezoelectric element rotarily driving said mirror through said torsion bar when said driving voltage is applied; and a second piezoelectric element, one end of said second piezoelectric element being connected to said torsion bar, the other end of the second piezoelectric element being connected to and supported by said mirror.
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Aimono Takanori
Akamatsu Masahiro
Tani Masanao
Yasuda Yoshiaki
Chen Yoshimura LLP
Phan James
Stanley Electric Co. Ltd.
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