Bimorph mirror with two piezoelectric layers separated by a...

Details Bimorph mirror with two piezoelectric layers separated by a... Bimorph mirror with two piezoelectric layers separated by a...

2005-01-13

2009-11-17

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Mirror

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

Reexamination Certificate

active

07618149

ABSTRACT:
The invention relates to a bimorph mirror presenting first and second layers (1, 2) of piezoelectric ceramic together with at least one electrode enabling at least one curvature of the mirror to be varied as a function of at least one electrical voltage applied to the piezoelectric ceramics. The mirror of the invention is characterized in that the first and second layers (1, 2) are separated by a central core (5) of material such as glass or silica, forming a semirigid beam.

REFERENCES:
patent: 4257686 (1981-03-01), Albertinetti et al.
patent: 4298247 (1981-11-01), Michelet et al.
patent: 6874897 (2005-04-01), Graves et al.
patent: 2003/0107828 (2003-06-01), Northcott et al.
patent: 2 238 880 (1991-06-01), None

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