Echelon Gratings | Photonics Buyers' Guide

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(4 companies)

Echelon Gratings An echelon grating is a highly specialized form of diffraction grating consisting of assembled glass plates of equal thickness that resemble a flight of stairs. The light enters through the largest plate at the end and emerges from the lesser plates at various deviations.

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Hellma USA, Inc., Sub. of Hellma GmbH & Co. KG - Plainview, NYManufactures and supplies Hellma cells, fiber optic probes, photometric calibration standards, flat and cylindrical optics and accessories for lasers, spectrophotometers and fluorometers. Supplies Heraeus light sources including vacuum UV, deuterium, hollow cathode, PID spectral calibration and...
- Supply/Distribute
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OPCO Laboratory, Inc. - Fitchburg, MAFull service manufacturer of high precision custom optics, optical replication, diffraction gratings, electro-optical assemblies, metallic and dielectric thin-film coatings for prototype and high volume production. State-of-the-art manufacturing, coating, QC, assembly and class 1000 cleanrooms,...
- Manufacture Custom

ADDITIONAL COMPANIES

Bach Research Corp. - Boulder, CO

Richardson Gratings, Business Unit of Newport Corp. - Rochester, NY

TERMS
echelon grating A highly specialized form of diffraction grating consisting of assembled glass plates of equal thickness that resemble a flight of stairs. The light enters through the largest plate at the end and emerges from the lesser plates at various deviations.
grating A framework or latticework having an even arrangement of rods, or any other long narrow objects with interstices between them, used to disperse light or other radiation by interference between wave trains from the interstices. The ability of a...
diffraction grating A glass substrate carrying a layer of deposited aluminum that has been pressure-ruled with a large number of fine equidistant grooves, using a diamond edge as a tool. Light falling on such a grating is dispersed into a series of spectra on both...

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