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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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

Isuzu Glass Inc. - Torrance, CA

Manufacture and designer of integrated lens arrays, microlens arrays, aspheric lenses, and condenser lenses by glass molding. Melting heat-absorbing and laser protection glass; and UV absorbing filters, ND filters, and color glass filters. Provides optical design and assembly services.

Custom Manufacturer

Lambda Research Optics Inc. (USA) - Costa Mesa, CA

Lambda Research Optics manufactures catalog and custom lenses, mirrors, beamsplitters, windows, prisms, filters, and polarizers for defense, commercial, and medical laser applications. Lambda specializes in high-power coatings for excimer, YAG, fiber, CO2 lasers, and FLIR coatings. Precision polishing of CaF2, MgF2, BK7, fused silica, ZnSe, Ge, and Si.

Custom Manufacturer

Rainbow Research Optics LLC - Centennial, CO

Manufacturer of precision optical components and high-power laser coatings from UV to IR. Stock and custom optics: lenses, beamsplitters, filters, windows, mirrors, wave plates, large wedges, prisms, and many more. In-house custom coatings: AR, high reflection, dichroic, and polarizing. Optics from 4 mm to 16 inches.

Custom ManufacturerDesigner

Guernsey Coating Laboratories Inc. - Ventura, CA

Abrisa Technologies - Santa Paula, CA

Asahi Spectra USA Inc. - Torrance, CA

Hoya Corp. USA, Optics Div. - Milpitas, CA

Infinite Optics Inc. - Santa Ana, CA

L&L Optical Services Inc. - Indio, CA

Starna Cells Inc. - Atascadero, CA

Sterling Resale Optics - Erie, CO

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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