Comparators | Photonics Buyers' Guide

Photonics Buyers' Guide > Comparators

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Comparators Comparators: 1. An eyepiece or magnifier with a scale at its image plane. That scale is placed in contact with an object, permitting direct measurement of its size. 2. Also called traveling stage and traveling microscope. An instrument intended for precise measurement of object dimensions. Either the microscope or the stage that carries the object may be moved by a precision mechanism. 3. A circuit designed to detect correlation or disagreement between two signals.

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Max Levy Autograph, Inc., Sub. of II-VI Incorporated - Philadelphia, PASpecializes in ultraprecision patterned components for the photonic, military/aerospace, semiconductor and metrology industries. Applications range from the x-ray out to infrared. Major manufacturing process capabilities include: photolithography, electroforming, photochemical etching, film...
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TERMS
comparator 1. An eyepiece or magnifier with a scale at its image plane. That scale is placed in contact with an object, permitting direct measurement of its size. 2. Also called traveling stage and traveling microscope. An instrument intended for precise...
optical comparator Gauging device with which an operator using backlighting can measure visually the dimensions of objects by means of a composite image with a reference.
color comparator 1. A device used in chemistry to compare the colors of solutions held in flat-bottomed tubes and viewed along the length of the tube. Often a solid glass plunger is moved along one of the tubes to effect a color match, the position of the plunger...
stereocomparator 1. A stereoscope that has adjustable scales to allow the determination of distances and dimensions from stereoscopic photographs. 2. A device used to view pictures of the same section of the night sky, taken at different times to determine stellar...
blink comparator An optical system that rapidly alternates two similar pictures or scenes to permit the detection of small dissimilarities between them.

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