Results 31 to 40 of about 4,075,667 (324)

Optimal design and analysis of a new thermally actuated microscanner of high precision [PDF]

open access: yesInternational Journal for Simulation and Multidisciplinary Design Optimization, 2008
A design of a precise, thermally actuated microscanner is proposed, and next, its thermal and mechanical behaviour is considered. The device consists of a micromirror and four thermo-bimorph cantilevers with electric resistors.
Gambin W. L., Zarzycki A.
doaj   +1 more source

Research on the mathematical model and design of a three loop controller for the oscillating scanning system of a laser line scanning galvanometer

open access: yesScientific Reports, 2023
The scanning vibration mirror system drives the scanning mirror fixed to it through the oscillation of the motor shaft, so as to control the reflected light to form a dynamic variable light path.
Xiaoyan Du, Jianying Li, Wenjie Zhao
doaj   +1 more source

Low Power Compact 3D-Constructed AlScN Piezoelectric MEMS Mirrors for Various Scanning Strategies

open access: yesMicromachines, 2023
In this paper, the newly developed 3D-constructed AlScN piezoelectric MEMS mirror is presented. This paper describes the structure and driving mechanism of the proposed mirror device, covering its driving characteristics in both quasi-static and resonant
Jeong-Yeon Hwang   +6 more
doaj   +1 more source

An ellipsoidal mirror for focusing neutral atomic and molecular beams [PDF]

open access: yes, 2010
Manipulation of atomic and molecular beams is essential to atom optics applications including atom lasers, atom lithography, atom interferometry and neutral atom microscopy.
Galas, J.   +45 more
core   +1 more source

Passive OCT probe head for 3D duct inspection [PDF]

open access: yes, 2013
A passive, endoscopic optical coherence tomography (OCT) probe has been demonstrated, incorporating an imaging fibre bundle and 45° conical mirror, and with no electromechanical components at the probe tip.
Tatam, Ralph P., Ford, Helen D.
core   +1 more source

Micromachined electromagnetic scanning mirrors [PDF]

open access: yesOptical Engineering, 1997
We report a new magnetic MEMS technology that enables many electromagnetic MEMS devices. This new technology combines magnetic thin films and silicon bulk micromachining. Its use is demonstrated by two types of millimeter-sized analog scanning mirrors that are capable of delivering deflection angles exceeding 60 deg.
Miller, Raanan A., Tai, Yu-Chong
openaire   +2 more sources

A two-axis water-immersible micro scanning mirror using hybrid polymer and elastomer hinges

open access: yes, 2020
This paper reports a new two-axis water-immersible micro scanning mirror using hybrid polymer and elastomer hinges. The fast- and slow-axis hinges were made of stiff BoPET (biaxially-oriented polyethylene terephthalate) and soft elastomer nanocomposite ...
Xiaoyu Duan   +4 more
semanticscholar   +1 more source

Improved Active Disturbance Rejection Double Closed-Loop Control of a Rotary-Type VCM in a Moving Mirror Control System

open access: yesSensors, 2022
Aiming to address the problem of moving mirror speed fluctuations in moving mirror control systems, an improved active disturbance rejection double closed-loop controller (IADR-DCLC) is proposed and verified by simulation to realize the high-performance ...
Liangjie Zhi   +6 more
doaj   +1 more source

New solution for fast axial scanning in fluorescence microscopy

open access: yesLight: Science & Applications, 2020
A novel technique based on the remote-focusing concept, using a galvanometer scanner combined with a self-fabricated “step mirror” or “tilted mirror” to transform fast lateral scanning into axial scanning, was reported as a new solution for fast ...
Weijian Zong
doaj   +1 more source

AlScN Piezoelectric MEMS Mirrors with Large Field of View for LiDAR Application

open access: yesMicromachines, 2022
This paper presents AlScN piezoelectric two-axis MEMS mirrors with gimbal-less and gimbaled designs fabricated in a CMOS-compatible manner. Integrated piezoelectric sensors provided feedback signals of the actual mirror positions.
Yichen Liu   +5 more
doaj   +1 more source

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