The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 1981
Filed:
Jan. 02, 1979
Applicant:
Inventor:
Nedo P Albertinetti, Canton, MA (US);
Assignee:
Itek Corporation, Lexington, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350360 ;
Abstract
A piezoelectric wavefront modulator is disclosed having mirror actuators including a first and second layer of piezoelectric material, both internally polarized in a given direction, together with electrode means for increasing the internal electric field in one layer while decreasing the internal electric field in the other layer. As the layers are clamped to the modulator support elements at opposite edges, the degree of bending of the layers may be carefully controlled to cause pusher elements to actuate a mirror, which mirror is oriented parallel to the major surfaces of the top layer of piezoelectric material.