Galvo Mirror Scanning
Galvo Mirror Scanning - Related Videos
09:01
Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
0 Views •
Cited by 4 •
2017
We propose a method to extend the corresponding frequency by using a pre-emphasis technique. This method compensates for the gain reduction of a galvanometer mirror in sine-wave path tracking using proportional-integral-differential control.
06:22
Motor Learning in Mirror Drawing
0 Views •
2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Colloquially, the terms learning and memory encompass a broad range of behaviors and mental systems, everything from learning to tie a shoe to mastering calculus (and a lot in between). Experimental psychologists have divided up learning mechanisms into groups that seem to have different properties, and that seem to rely on different brain systems. A major division is between declarative and non-declarative memory, roughly, the...
10:32
Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms
0 Views •
Cited by 26 •
2016
We developed a real-time mirror robot system for functional recovery of hemiplegic arms using automatic control technology, conducted a clinical study on healthy subjects, and determined tasks through feedback from rehabilitation doctors. This simple mirror robot can be applied effectively to occupational therapy in stroke patients with a hemiplegic arm.
03:18
Aggression Assay: A Method to Study Aggressive Behavior of Zebrafish in Response to a Mirror
0 Views •
2023
The article describes an assay for studying zebrafish’s aggression. The method uses a simple mirror and observes zebrafish’s behavioral response towards its own reflection in mirror.
14:10
Video-rate Scanning Confocal Microscopy and Microendoscopy
0 Views •
Cited by 14 •
2011
The complete construction of a custom, real-time confocal scanning imaging system is described. This system, which can be readily used for video-rate microscopy and microendoscopy, allows for an array of imaging geometries and applications not accessible using standard commercial confocal systems, at a fraction of the cost.
FAQs
The control signal determines each galvanometer-driven mirror’s angular displacement. As a mirror rotates, it redirects the incoming beam to a corresponding position in the optical field. Using one mirror provides steering along one axis, while coordinated movement of two mirrors enables positioning across two axes, allowing the system to form either sequential raster patterns or selected illumination locations.
A single scanning axis supports controlled movement in one direction, whereas two perpendicular axes expand beam positioning across an area. This distinction determines whether illumination follows a line-like path or a two-dimensional pattern. Two-axis control is therefore important for raster scanning and for directing light to specific regions within a biological sample.
Rapid mirror movement allows the beam to traverse a scan pattern quickly, while repeatable angular positioning helps return illumination to defined locations consistently. Together, these properties support high-resolution visualization and automated measurements. They also make programmable targeting practical when an experiment requires controlled optical interaction with selected portions of cells or tissues.
A system converts programmed electrical commands into angular movements of the galvanometer-driven mirrors. The mirrors redirect the beam through the optical path, either across a raster pattern or toward selected coordinates. Light then interacts with the biological sample for imaging, stimulation, or measurement, while the programmed scan determines where and when illumination occurs.
In bioengineering systems, the technique supports laser scanning microscopy, optical imaging, photostimulation, and automated measurements. Each application uses programmable beam placement for a different purpose, such as visualizing biological structure, delivering light to a selected region, or collecting measurements across a defined scan. Its flexible scan patterns allow one steering system to serve multiple experimental designs.
Targeted illumination confines beam placement to selected regions rather than scanning indiscriminately across the entire sample. In cell and tissue studies, this supports focused optical interaction and can help limit exposure outside the region of interest. Combined with precise positioning, the approach contributes to high-resolution visualization and controlled experiments involving biological samples.