Shape Control of a Unimorph Deformable Mirror for Space Active Optics under Uncertainties [PDF]
Micromachines, 2023 This paper focuses on the change of morphing capabilities for a unimorph deformable mirror impacted by environmental factors, which works in space for active optics applications.
Kainan Wang, Yian Yu, André Preumont
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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, Xinlong Fan, Xuejun Rao
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Investigation of PZT Materials for Reliable Piezostack Deformable Mirror with Modular Design [PDF]
Micromachines, 2023 This article presents a study of the electrophysical properties of a piezoceramic material for use in adaptive optics. The key characteristics that may be important for the manufacturing of piezoelectric deformable mirrors are the following ...
Vladimir Toporovsky +5 more
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Design and Simulation of a 19-Electrode MEMS Piezoelectric Thin-Film Micro-Deformable Mirror for Ophthalmology [PDF]
MicromachinesThis study presents a numerical simulation-based investigation of a MEMS (micro-electromechanical systems)technology-based deformable mirror employing a piezoelectric film for fundus examination in adaptive optics.
Yisen Hu +7 more
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Magnetic Fluid Deformable Mirror with a Two-Layer Layout of Actuators † [PDF]
Micromachines, 2017 In this paper, a new type of magnetic fluid deformable mirror (MFDM) with a two-layer layout of actuators is proposed to improve the correction performance for full-order aberrations with a high spatial resolution. The shape of the magnetic fluid surface
Zhizheng Wu +5 more
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A Relativistic Adaptive Gradient Descent Enhanced SPGD Algorithm for Wavefront Sensorless Adaptive Optics [PDF]
MicromachinesDeformable mirrors (DMs) serve as the core wavefront correction devices in wavefront sensorless adaptive optics (AO) systems, and their performance is predominantly determined by the convergence speed and stability of the control algorithm.
Huizhen Yang +6 more
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Design and Fabrication of a Large-Stroke Deformable Mirror Using a Gear-Shape Ionic-Conductive Polymer Metal Composite [PDF]
Sensors, 2012 Conventional camera modules with image sensors manipulate the focus or zoom by moving lenses. Although motors, such as voice-coil motors, can move the lens sets precisely, large volume, high power consumption, and long moving time are critical issues for
Guo-Dung John Su, Hsiang-Chun Wei
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Ultrathin monolithic bimorph mirror using polarization-inverted lithium niobate wafer [PDF]
Scientific ReportsDeformable mirrors (DMs) serve diverse applications and have been adopted in X-ray optics recently. DMs are being used in various X-ray optical systems with variable parameters, with piezoelectric bimorph mirrors favored the most.
Takato Inoue +6 more
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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
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A Study on a Single Continuous Deformable Mirror for Correction of Atmospheric Disturbance [PDF]
한국정밀공학회지, 2018 The deformable mirror is the main component of the adaptive optical imaging system, which removes the atmospheric disturbance and acquires the target image without any loss and the beam transmission system, which transmits the laser beam to a long ...
Hyun Cheol Cho +3 more
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