2 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. - 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

Chang Chun Jiu Tian Optoelectric Co. Ltd. (JTOPTEC) - Changchun, China

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