Variable-shape mirror and optical pickup device therewith

Details Variable-shape mirror and optical pickup device therewith Variable-shape mirror and optical pickup device therewith

2006-06-20

2008-11-18

Amari, Alessandro (Department: 2872)

Optical: systems and elements

Mirror

Including specified control or retention of the shape of a...

C359S849000

Reexamination Certificate

active

07452089

ABSTRACT:
The variable-shape mirror is provided with a support base and a minor portion that is disposed to face the support base and that has on a side thereof facing away from the support base a minor surface which is irradiated with a light beam. There are also provided piezoelectric elements that are sandwiched between the support base and the mirror portion and that vary the shape of the mirror surface. The piezoelectric elements are bonded, through a thin layer of metal that is separately provided for bonding, to at least one of the support base and the mirror portion. A driving voltage to the piezoelectric elements is supplied through the thin layer of metal.

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