A Lorentz Force Actuated Continuous Deformable Polymer Mirror for Wavefront Control
Proceedings, 2017 This paper describes MEMS deformable polymer mirror system for adaptive optics application. This system employs a 4 µm thick SU-8 membrane with a stress balanced double side aluminum coating as a mirror element.
Byoungyoul Park +2 more
doaj +1 more source
Multiplexing control of a multichannel piezoelectric deformable mirror
SPIE Proceedings, 2005 ABSTRACT Addressing of massive arrays of piezoelectric actuators is usually achieved by using separate high-voltage output drivers, one per channel. This approach applied to high-order adaptive optics systems results in complex, expensive and vulnerable to handling abuse driver electronics, hardly scalable to 10 3 -10 4 actuators.
Song, H. (author) +2 more
openaire +3 more sources
Active shape correction of a thin glass/plastic X-ray mirror [PDF]
, 2014 Optics for future X-ray telescopes will be characterized by very large aperture and focal length, and will be made of lightweight materials like glass or plastic in order to keep the total mass within acceptable limits. Optics based on thin slumped glass
Barbera, M. +11 more
core +2 more sources
A magnetic liquid deformable mirror for high stroke and low order axially symmetrical aberrations [PDF]
, 2006 We present a new class of magnetically shaped deformable liquid mirrors made of a magnetic liquid (ferrofluid). Deformable liquid mirrors offer advantages with respect to deformable solid mirrors: large deformations, low costs and the possibility of very
Anna Ritcey +4 more
core +2 more sources
Major Reference Works, Page 290-301., 2021 International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.
Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
John P. Sutter C. Chantler +2 more
wiley +1 more source
Optimized actuators for ultrathin deformable primary mirrors [PDF]
, 2015 A novel design and selection scheme for surface-parallel actuators for ultrathin, lightweight mirrors is presented. The actuation system consists of electrodes printed on a continuous layer of piezoelectric material bonded to an optical-quality substrate.
Laslandes, Marie +2 more
core +1 more source
Suppressing low-order eigenmodes with local control for deformable mirrors [PDF]
, 2012 To improve the mechanical characteristics of actively controlled continuous faceplate deformable mirrors in adaptive optics, a strategy for reducing crosstalk between adjacent actuators and for suppressing low-order eigenmodes is proposed.
Andersen, Torben +4 more
core +1 more source
Thin deformable mirrors for a reconfigurable space telescope [PDF]
, 2012 As part of a small satellite technology demonstration that will utilize autonomous assembly, reconfiguration, and docking technology to form the primary mirror for the mission’s telescope payload, the mirror segments are required to modify and control ...
Bely P. +10 more
core +1 more source
Ultralightweight deformable mirrors [PDF]
, 2013 This paper presents a concept for ultralightweight deformable mirrors, based on a thin substrate of optical surface quality, coated with continuous active layers that provide separate modes of actuation at different length scales. This concept eliminates
Patterson, Keith, Pellegrino, Sergio
core +1 more source
Integrated structure and sensorless feedback control of unimorph piezoelectric deformable mirrors
Light: Advanced ManufacturingDeformable mirrors are essential dynamic wavefront compensation. Among the various types of deformable mirrors with different actuation mechanisms, the unimorph piezoelectric deformable mirror (UPDM) offers distinct advantages owing to its compact size ...
Dapeng Tian, Jian Chen, Ping Jia
doaj +1 more source