Results 21 to 30 of about 644,059 (323)
Unimorph deformable mirror for space telescopes: design and manufacturing
Optics Express, 2015 Large space telescopes made of deployable and lightweight structures suffer from aberrations caused by thermal deformations, gravitational release, and alignment errors which occur during the deployment procedure.
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
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
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
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
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
High pixel number deformable mirror concept utilizing piezoelectric hysteresis for stable shape configurations [PDF]
Journal of Astronomical Telescopes Instruments and Systems, 2020 We present the conceptual design and initial development of the Hysteretic Deformable Mirror (HDM). The HDM is a completely new approach to the design and operation of deformable mirrors for wavefront correction in advanced imaging systems.
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
Advanced Engineering Materials, EarlyView., 2023 A novel method for tracking structural changes in gels using widely accessible microcomputed tomography is presented and validated for various hydro‐, alco‐, and aerogels. The core idea of the method is to track positions of micrometer‐sized tracer particles entrapped in the gel and relate them to the density of the gel network.
Anja Hajnal +3 more
wiley +1 more source