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Meadowlark Optics - Wave Plates 6/24 LB 2024
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Lambda Research Optics, Inc. - Beamsplitter Cubes
CASTECH INC - Innovative One-Stop
12 suppliers

Neutral Density Filters

A neutral density filter is a light filter that decreases the intensity of the light without altering the relative spectral distribution of the energy. Also known as a gray filter.

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AccuCoat Inc.
AccuCoat Inc. - Rochester, NY
Supplier of thin-film coatings on polymer, metal, and glass components. Produces a wide variety of antireflective, beamsplitter, hot and cold mirror, filter and metallic coatings as well as custom coatings. Experienced in handling prototype through OEM volumes. Coatings available from UV to the IR.
Custom Manufacturer
4 products
Chroma Technology Corp.
Chroma Technology Corp. - Bellows Falls, VT
Manufacturer of optical filters and coatings for many demanding applications such as: biomedical instruments and imaging systems, fluorescence microscopy, aerospace, surveillance, machine vision, industrial inspection such as semiconductors, food and lumber, multispectral imaging, and chemical analysis. Employee-owned.
Stock Manufacturer
1 product
OPCO Laboratory Inc.
OPCO Laboratory Inc. - Fitchburg, MA
Manufacturer of custom optics, optical replication, diffraction gratings, electro-optical assemblies, metallic and dielectric thin-film coatings for prototype and volume production. State-of-the-art manufacturing, coating, QC, assembly and class 1000 cleanrooms. Serving commercial and defense markets worldwide.
Custom Manufacturer
9 products
MKS/Newport
MKS/Newport - Franklin, MA
MKS/Newport designs and manufactures high performance optical filters and replicated mirrors in the UV, VIS, and NIR. Filters include bandpass, dichroic, edge, fluorescence, neutral density, and notch filters, as well as optomechanical and electro-optical assemblies based on filter technology. Mirrors include retroreflector, aspheric, and spherical.
Custom Manufacturer
1 product
National Photocolor Corporation
National Photocolor Corporation - Mamaroneck, NY
Manufacturer of thin-film pellicles for use as beamsplitters, beam combiners, attenuators, filters, and optical windows. Standard items, uncoated and coated, are available from inventory; special frames, coatings, flatness, transmission and documentation are available for custom applications.
Stock ManufacturerCustom Manufacturer
1 product
Sydor Optics Inc.
Sydor Optics Inc. - Rochester, NY
Custom manufacturer of precision flat-surfaced, parallel, and wedged optics specializing in double-sided polishing for transmitted wavefront and parallelism. Products include optical and IR windows, glass wafers, color glass filters, mirrors, wedges, plate beamsplitters, and witness samples. ITAR registered, ISO 9001:2015 certified.
Custom Manufacturer
8 products
Esco Optics - Oak Ridge, NJ
eSource Optics - Whitinsville, MA
Gurley Precision Instruments Inc. - Troy, NY
IMPhotonix Inc. - North Andover, MA
Knight Optical - North Kingstown, RI
Republic Lens Co. Inc. - Bangor, PA
Glossary
  • neutral density filter A light filter that equally decreases the intensity of all wavelengths of light without altering the relative spectral distribution of the energy.
  • light filter A homogeneous optical medium or coating that transmits only in particular regions of the spectrum. It is used to change or modify the total or relative energy distribution of a beam of light.
  • optical density A measure of the transmittance through an optical medium. Optical density equals the log to the base 10 of the reciprocal of the transmittance. where τλ is transmittance. In spectroscopy, optical density is the measure of absorbance, and...
  • optical filter An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical filters are used to control the spectral content of light in various applications, allowing certain wavelengths to pass through...
Neutral Density Filters Supplierslight filtergray filterfilters neutral densityoptical filterfilters light intensitydecrease light intensityopticsnd filters

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