Results 21 to 30 of about 666,559 (380)
Unimorph deformable mirror for space telescopes: environmental testing
Optics Express, 2016 We have developed and manufactured a unimorph deformable mirror for space telescopes based on piezoelectric actuation. The mirror features 44 actuators, has an aperture of 50 mm, and is designed to reproduce low-order Zernike modes with a stroke of ...
Peter Rausch +2 more
openalex +2 more sources
Characterization of a bimorph deformable mirror using stroboscopic phase-shifting interferometry. [PDF]
Sens Actuators A Phys, 2007 Horsley DA, Park H, Laut SP, Werner JS.
europepmc +3 more sources
Analysis of a discrete-layout bimorph disk elements piezoelectric deformable mirror [PDF]
, 2018 We introduce a discrete-layout bimorph disk elements piezoelectric deformable mirror (DBDEPDM), driven by the circular flexural-mode piezoelectric actuators.
Hairen Wang +4 more
semanticscholar +3 more sources
Calibration of Deformable Mirrors for Open-Loop Control
Sensors, 2022 Deformable mirrors enable the control of wave fronts for the compensation of aberrations in optical systems and/or for beam scanning. Manufacturers of deformable mirrors typically provide calibration data that encode for the fabrication tolerances among ...
Marcel Leutenegger, Stefan W. Hell
doaj +1 more source
Opto-Electronic Advances, 2023 Integrating deformable mirrors within the optical train of an adaptive telescope was one of the major innovations in astronomical observation technology, distinguished by its high optical throughput, reduced optical surfaces, and the incorporation of the
Youming Guo +9 more
doaj +1 more source
Photonics, 2023 In a photoelectric tracking system, a deformable mirror can be used to adjust the transmission path of a light beam to achieve accurate measurement and tracking of the target position.
Bo Li, Dapeng Tian
doaj +1 more source
Ultralightweight deformable mirrors [PDF]
Applied Optics, 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 any kind of stiff backing structure for the mirror surface and exploits microfabrication ...
Patterson, Keith, Pellegrino, Sergio
openaire +5 more sources
Influence functions for a hysteretic deformable mirror with a high-density 2D array of actuators. [PDF]
Applied Optics, 2020 We present modeling and analysis of a hysteretic deformable mirror where the facesheet interacts with a continuous layer of piezoelectric material that can be actuated distributively by a matrix of electrodes through multiplexing.
A. Schmerbauch +4 more
semanticscholar +1 more source
Nanolaminate Deformable Mirrors [PDF]
IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference, 2006., 2006 The paper describes two similar deformable mirrors that will demonstrate the feasibility of nanolaminate-based deformable mirrors over a wide range of size scales. Two complementary technologies: high-spatial-density electrostatic actuators and thin, flexible, lightweight nanolaminate foils are combined.
Papavasiliou, A. P. +6 more
openaire +2 more sources
General approach to precise deformable mirror control.
Optics Express, 2021 We develop a simple and effective control method for accurate control of deformable mirrors (DMs). For a desired DM surface profile and using batches of observed surface profile data, the proposed method adaptively determines both a DM model (influence ...
A. Haber, T. Bifano
semanticscholar +1 more source