Mirror Deflection
Mirror Deflection - Related Videos
10:02
Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection
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Cited by 1 •
2014
Here we report an application of the photothermal beam deflection technique in combination with a caged calcium compound, DM-nitrophen, to monitor microsecond and millisecond dynamics and energetics of structural changes associated with the calcium association to a neuronal calcium sensor, Downstream Regulatory Element Antagonist Modulator.
01:19
Deflection of a Beam
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2024
Accurately determining beam deflection and slope under various loading conditions in structural engineering is crucial for ensuring safety and structural integrity. Singularity functions offer a streamlined approach to analyzing beams, especially when multiple loading functions complicate the bending moment equation. Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...
01:13
Maximum Deflection
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2024
When analyzing beams under unsymmetrical loads, such as a train moving on a bridge, it is crucial to accurately determine the points of maximum stress and deflection. The process involves identifying the maximum deflection of the beam, which may not always occur at its midpoint due to the uneven distribution of the load. The maximum deflection occurs at a specific point, known as point O, where the tangent to the deflection curve is horizontal. To find point O, the slope of the tangent at any...
06:22
Motor Learning in Mirror Drawing
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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...
11:27
Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging
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Cited by 10 •
2013
Current applied to an endovascular microcatheter with microcoil tip made by laser lathe lithography can achieve controllable deflections under magnetic resonance (MR) guidance, which may improve speed and efficacy of navigation of vasculature during various endovascular procedures.
FAQs
The reflected beam responds to the mirror’s changing surface orientation on both sides of the reflection geometry. When the mirror rotates through a small angle, the normal to its surface rotates by the same amount, while the reflected direction changes relative to that normal as well. Consequently, the beam’s angular deflection is twice the mirror’s rotation, creating a useful amplification.
The law of reflection requires the angle between the incident beam and the surface normal to equal the angle between the reflected beam and that normal. Changing the mirror orientation therefore changes the normal and redirects the outgoing beam. This geometric relationship lets researchers predict the new beam direction from the mirror’s angular movement.
A small angular change at the mirror becomes an observable shift in the reflected beam’s position on a screen or detector. Because the beam direction changes by twice the mirror rotation, the resulting displacement provides an amplified indication of motion. This approach supports precision measurement when the angular movement itself is too small to observe directly.
A typical arrangement directs an incident light beam onto a reflective surface and observes the reflected beam on a screen or detector. Researchers establish the initial beam position, rotate the mirror by a small amount, and record the resulting change in beam direction or position. Comparing these measurements reveals the mirror’s angular movement through the reflection geometry.
Mirror deflection supports laser-steering systems, optical alignment, galvanometers, and scanning instruments. In these applications, controlled mirror rotation redirects a beam so that its path or position can be adjusted, monitored, or swept across a region. The same response also enables sensitive experimental measurements by converting small angular changes into detectable optical signals.
In experimental physics, the technique links a mechanical angular change to a measurable optical response. A detector or screen records the reflected beam’s displacement, while the known reflection geometry relates that observation to mirror motion. This makes mirror deflection valuable for detecting minute movements and for evaluating alignment or beam-steering behavior in optical systems.