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Edmund Optics - Manufacturing Services 8/24 MR
Spectrogon US - Optical Filters 2024 HP
8 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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Reynard Corporation
Reynard Corporation - San Clemente, CA
Reynard Corporation manufactures custom optics and thin-film coatings from 0.2 to 50 microns (UV-IR). Other in-house capabilities include diamond turning, optical fabrication, photolithography pattern optics, environmental testing, and design services. Prototype to production, ISO 9001:2015 certified, ITAR registered, and Cybersecurity (CMMC) compliant.
Custom Manufacturer
16 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, automation, multispectral imaging, chemical analysis. Custom and catalog optical filters. 100-percent employee-owned.
Stock Manufacturer
1 product
Glass Fab Inc.
Glass Fab Inc. - Rochester, NY
Manufacturer of custom blanks. Products include fused quartz and silica, optical and filter glasses, and low/ultralow expansion glasses. Capabilities include annealing, slumping, sawing, grinding, edging, drilling, waterjet cutting, and CNC shaping and generating.
Custom Manufacturer
4 products
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
Schneider Optics Inc., Industrial Optics
Schneider Optics Inc., Industrial Optics - Hauppauge, NY
Provides high-performance lenses for demanding video, digital projection, and industrial optics applications offering precision optical design, manufacture, test, and distribution of both standard and custom solutions. Serving the precision industrial market, manufactures photographic and industrial lenses and filters.
Stock Manufacturer
20 products
Hangzhou Shalom EO
Hangzhou Shalom EO - Hangzhou, China
As a matured and professional global supplier with a sophisticated engineering background, we specialize in the manufacturing and sales of electro-optics, including laser crystals and components, laser mirrors, nonlinear crystals, wave plates, polarizers, optical windows and lenses, IR camera lens assemblies/optical filters, scintillators, and more.
Custom Manufacturer
12 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
SCHOTT North America Inc.
SCHOTT North America Inc. - Duryea, PA
Develops products for applications in optics, lithography, astronomy, automotive, consumer electronics, industrial, and life sciences. Offers a variety of optical and laser glasses, optical filters, glass ceramic, IR materials, optical components, custom glass development, precision finishing, and metrology capabilities.
Stock Manufacturer
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...
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