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:
Nov. 20, 2001
Filed:
Jan. 18, 2000
Mohsen Khoshnevisan, Newbury Park, CA (US);
Manouchehr E. Motamedi, Newbury Park, CA (US);
Jeffrey Glenn Nelson, Camrillo, CA (US);
Ratnakar R. Neurgaonkar, Thousand Oaks, CA (US);
The Boeing Company, Seattle, WA (US);
Abstract
A piezoelectric translator has a flat ribbon geometry and a large translation length perpendicular to the surface of the bridge. The translator includes a platform supporting the optic or micro-optic element and a slender piezo actuation system for displacing the platform. A position sensing system provides feedback to the actuation system regarding displacement of the platform. The actuation system includes a plurality of bridge actuators wherein each actuator includes a flat piezoelectric ribbon and leaf spring cap bonded to the ribbon, in single- or double-sided geometry. A stacked bridge geometry is also provided and allows increased displacement for a given applied voltage. Two collinearly placed single span bridge actuators or two-span bridge actuators can be used to provide linear translations with micro-rotation control.