Photonics Buyers' Guide > Neutral Density Filters

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Mid-IR Optical Isolators
(65 companies)
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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    Glass Fab Inc. - Rochester, NYManufacturer of custom blanks. Products include fused quartz, fused silica, optical glasses, filter glasses, and low/ultralow expansion glasses. Capabilities include annealing, slumping, sawing, grinding, edging, drilling, water jet cutting, CNC shaping and CNC generating.
    • Manufacture Custom
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    Reynard Corp. - San Clemente, CASupplies custom and standard optical components and thin-film coatings 0.2 to 50 microns (UV-FAR IR) to demanding specifications for military, aerospace, medical and telecommunication applications. In-house services include design, optical and mechanical fabrication, photolithography processing,...
    • Manufacture Custom
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    Spectrogon US, Inc., Sub. of Spectrogon AB - Mountain Lakes, NJDesigner and manufacturer of interference filters: narrow and broad bandpass, long wave and short wave, ND filters, atmospheric windows, AR and metallic coatings. Holographic diffraction gratings: plano, concave and blazed, pulse compression/stretcher gratings. WDM and telecommunication...
    • Manufacture Stock
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    A.R.W. Optical Corporation - Wilmington, NCManufacturer of custom, standard and OEM optical components and coatings in the UV to IR region. Provides rapid prototyping through volume production for all industries. Products include assemblies, beamsplitters, filters, lenses (achromatic, cylindrical, spherical), mirrors (cylindrical, flat,...
    • Manufacture Custom
    • Design
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    Acton Optics & Coatings/Princeton Instruments, Division of Roper Industries - Acton, MAActon Optics & Coatings provides high laser damage threshold excimer and UV laser optics, Al and MgF2 broadband mirrors and coatings, VUV/UV optical filters, detector-enhanced coatings and assemblies. Acton has a reputation spanning 50 years working with researchers and engineers in disciplines...
    • Manufacture Stock
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    Berliner Glas KGaA Herbert Kubatz GmbH & Co. - Berlin, GermanyOffers precision thin-film coated optical components, optomechanical and electro-optical assemblies and systems from design to production for semiconductor, industrial and medical applications, as well as customized measurement set-ups. Also offers technical glass refinement for displays. ISO...
    • Manufacture Custom
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    Bond Optics, LLC - Lebanon, NHCustom manufacturer of precision optical components and precision mechanical glasswork. Materials processed include fused quartz/silica, optical glass, filter glass, pyrex, Zerodur and ULE. Custom coating and interferometric testing services available.
    • Manufacture Custom
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    China Daheng Group, Inc. - Beijing, ChinaOffers a wide variety of off-the-shelf and custom optics; optomechanical components including lenses, telecentric lenses, mirrors, prisms, filters, polarizing beamsplitters, gratings; and crystal optics. Designs and manufactures lens systems for CCDs, CMOS, projectors and scanners. Also offers a...
    • Manufacture Stock
    • Manufacture Custom
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    Chroma Technology Corp. - Bellows Falls, VTManufacturer of optical filters and coatings for biomedical instruments and imaging systems, fluorescence microscopy, astronomy, space exploration and chemical analysis.
    • Manufacture Stock
    • Manufacture Custom
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    Cosmo Optics, Inc. - Middletown, NYFounded in 1957, Cosmo Optics is involved primarily in prototypes of optical components and assemblies for industrial and scientific use. Small-scale production is also frequently undertaken. Cosmos’ wide range of facilities enables fabrication, testing and assembly of the most intricate...
    • Manufacture Custom
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    Esco Optics - Oak Ridge, NJUS manufacturer of custom and standard optics for the UV, visible and IR wavelengths. In house production of lenses, windows, mirrors, blanks, prisms, filters and optical coatings. For over 50 years, we have proudly offered exceptional customer service, low prices and short lead times. ITAR...
    • Manufacture Stock
    • Manufacture Custom
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    Guernsey Coating Laboratories, Inc. - Ventura, CASupplier of vacuum deposited optical coatings including bandpass and neutral density filters, antireflection coatings, and thermal, electron-beam, ion-assisted and ion-sputtered thin films. Research and development of ultrastable films for optical and semiconductor applications.
    • Manufacture Custom
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    Gurley Precision Instruments, Inc. - Troy, NYManufactures stock and custom reticles, lenses, prisms, mirrors, resolution targets, step wedges, divided circles, absolute and incremental discs/scales, precision patterns and replications, measuring devices, rotary/linear encoders, engineering and surveying instruments and digital readout systems...
    • Manufacture Custom
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    Kentek Corp. - Pittsfield, NHOffers laser safety eyewear, laser barriers and laser windows. Stock replacement parts for lasers and will rework laser crystals and laser components. Secure online shopping. Experienced technical sales staff for free consultation.
    • Manufacture Stock
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    National Photocolor Corp. - Mamaroneck, NYManufacturer of thin-film pellicles for use as beamsplitters, beam combiners, attenuators, filters and optical windows. Standard items, both uncoated and coated, are available from inventory; special frames, coatings, flatness, transmission and documentation are available for custom applications.
    • Manufacture Stock
    • Manufacture Custom
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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
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    PFG Precision Optics - Ocean Springs, MSManufacturer of precision optical components from UV through mid-IR wavelengths. Components include prisms, windows, filters, wedges, mirrors, beamsplitters, and all types of singlet, doublet and triplet lenses. Electron and ion-assisted deposition coating services available. Prototype production...
    • Manufacture Custom
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    Rainbow Research Optics, Inc. - Centennial, COManufacturer of precision optical components and high-power laser coatings from UV to IR. Supplier of stock and custom optics. Products include lenses, beamsplitters, filters, windows, mirrors, wave plates, large wedges and prisms. In-house coatings include antireflection, high reflection, dichroic...
    • Manufacture Custom
    • Design
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    Rocky Mountain Instrument Co. (RMI) - Lafayette, CORocky Mountain Instrument Co. is a fully integrated manufacturer of high quality photonics products. Capabilities include: custom optical fabrication, UV/visible/IR coatings, optical assemblies, DPSS laser systems (1064/532/355 nm) and ultracompact laser marking engines. RMI can handle OEM...
    • Manufacture Custom
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    Valley Design Corp., Headquarters - Shirley, MASince 1975 Valley Design Corp. has been an industry leader in advanced materials processing, as providers of precision lapping, polishing, dicing, CNC machining, grinding and other precision machining services including slicing, backgrinding, wafer and die thinning, optical edge/angle polishing and...
    • Manufacture Custom
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    Vogelin Optical Company, Inc. - Norwood Young America, MNManufacturer of precision optical components and assemblies for aerospace, avionic, defense, medical and space exploration applications. Supplier of glass and plastic edging and grinding services; and ceramic, porcelain and most optical material substrate fabrication and polishing.
    • Manufacture Custom
ADDITIONAL COMPANIES

  • TERMS
  • neutral density filter Also known as a gray filter. A light filter that decreases the intensity of the 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.



   

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