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Integral preload mechanism for piezo actuators

A piezoelectric actuator and actuator technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, instruments, etc., can solve problems affecting the performance of the mount

Active Publication Date: 2019-12-06
NEWPORT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This can negatively affect the performance of the mount

Method used

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  • Integral preload mechanism for piezo actuators
  • Integral preload mechanism for piezo actuators
  • Integral preload mechanism for piezo actuators

Examples

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Embodiment Construction

[0065]Embodiments discussed herein are directed to compact motorized drives that include piezoelectric actuators that can provide translational and / or rotational adjustment (in some cases) of optical devices and / or optical elements secured to optical mounts. mechanism. This exemplary optical mount can be configured to have little or no angular range limitation, availability of a central aperture through the optical mount, positional stability in the event of power loss to the optical mount, good sensitivity and low cost (relative to other motorized adjustable optical mounts for optical adjustment). Examples of optical mounts that may be actuated by such piezoelectric actuators may include rotating optical mounts such as rotary tables, optical mounts that are pivoted or jointed and configured for angular tilting such as kinematic optical mounts racks), translation mounts that can contain translation stages, and more. Piezoelectric actuator embodiments may be suitably disposed...

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Abstract

The present invention relates to a piezoelectric actuator which may comprise a monolithic frame having an integral biasing strip between a first contact surface and a second contact surface of the actuator. Provides a resilient restoring force that can be used to rotate the adjustment shaft. In some cases, a pre-compression mechanism may also be included in the frame. Such piezoelectric actuators may be used in adjustable optical mounts such as optical mounts and the like.

Description

[0001] Related patent applications [0002] This patent application claim was filed on April 15, 2014, the inventor is Honqi Li, the title is "Integrated Preload Mechanism for Piezoelectric Actuator (INTEGRAL PRELOAD MECHANISM FOR PIEZOELECTRICACTUATOR)" and has attorney case number NPT - Benefit of US Invention Patent Application No. 14 / 253,087 of 0339-UT, which is hereby incorporated by reference in its entirety. Background technique [0003] Optical devices or elements such as lenses, mirrors, waveplates, filters, volume Bragg gratings, prisms, etc. are often mounted to optical systems and in particular experimental optical systems with adjustable optical mounts. Examples of an optical system may include an optical bench or pedestal having multiple optical devices and components mounted to the pedestal in an orientation so as to provide an optical path that directs light beams from one optical device to another. Beams from lasers or other light sources are often used for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/04G02B7/00H10N30/01H10N30/03H10N30/20H10N30/88
CPCH02N2/101B23H7/02B23H9/00H02N2/006G02B7/005B23K26/38B24C1/045Y10T29/42H02N2/04B23H1/00H02N2/10
Inventor 李宏琪
Owner NEWPORT CORP
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