- A.W.I. Industries, Inc.
 - Distributor of optical products, including ball lens, asphere, lens assembly, plastic optics, fresnel lens, prism, CCD/CMOS lens. Also supplies injection mould and plastic products. - Academy of Infrared Thermography, The (AIRT)
- Provides infrared thermography training worldwide.
- Acton Research Corporation
- Manufacturers of excimer and ultraviolet optics, and multi-grating monochromators and spectrographs.
- Adaptive Optics Associates, Inc.
- Manufacturer of fast framing cameras, motion capture systems, and micro-optics.
- Adirondack Video Astronomy
- Offers CCD imaging products and accessories including the ASTROVID and Starlight Xpress CCD Cameras and more.
- Advanced Optics, Inc.
- Manufacturer of precision and commercial optical components including optical flats, front surface mirrors, and optical grade windows.
- Advanced Photonix
- Develops standard and custom silicon photodetectors and optoelectronic assemblies.
- Aili Optics & Electronic Co., Ltd.
- Designs, manufactures, and exports optical lenses, optical elements, CCD lenses, plastic lenses, optical mounts, and more.
- Align Optics, Inc.
- Specialises in the custom design of optics, plastics, and coatings.
- Alpha Innotech Corporation
- Manufacturers gel documentation, chemiluminescence, and fluorescence imaging systems. Analysis tools include densitometry, PCR quantification, 2D gel analysis, and more.
- Altair Optical Technology Co., Ltd.
- Offers optical lenses, glass lenses, and spherical plastic lenses.
- Alternative Endoscope Instruments
- Design, manufacture and maintenance of endoscopes.
- American Infrared
- Specialising in infrared and thermal imaging cameras and accessories for use in industry and by individuals.
- American Precision Optics Manufacturers Association (APOMA)
- Dedicated to promoting and advancing science, technology, and business opportunities for the precision optics industrial base.
- Ando Europe BV
- Manufacturer of optical tele- & datacommunications test- & measure instrumentation, like mainframe & mini OTDRs, optical spectrum analysers, optical amplifier analysers, etc.
- Andover Corporation Optical Filters
- Manufacturer of optical filters and coatings, specialising in image quality and ultra-narrowband filters.
- Antioch Systems
- Technical design consulting in all areas of optical systems.
- Apogee Instruments
- Source for high performance affordable CCD imaging systems.
- Applied Optoelectronics, Inc.
- Research, development, and manufacture of opto-electronic devices, and semiconductor integrated circuits.
- Ashwin Systems International, Inc.
- Provides equipment and supplies for colour thermal images, conference information, and educational materials.
- Aspheric Technology, Inc.
- Manufactures and supplies diamond turned and ground optics for visible, infrared, and moulded aspheric glass lenses.
- Barr Associates@
- Biomedical Photometrics Inc.
- New confocal scanning laser microscope/macroscope for imaging of specimens from 25 x 25 microns to 7.5 x 7.5 cm in size using reflected light and fluorescence.
- Boeckeler Instruments, Inc.
- Manufactures video measuring, video marking, and precision measuring systems for industrial, medical, and presentation markets.
- Boulder Nonlinear Systems
- Spatial light modulators, microdisplays, variable shutters, variable retarders, optical correlators, spectrometers, liquid crystal modulators.
- Boxin Optical Instruments
- Producer of BK7 series lenses, mirrors, windows, microscopes, and other optical instruments.
- Breault Research Organization, Inc.
- An electro-optical engineering firm that specialises in providing technical assistance to the aerospace and optics industries.
- BSC Optics
- Providing consulting services for optical design and testing, and supplying new and used optical components such as mirrors, lenses, mounting hardware, and instruments.
- Carl Zeiss
- Produces a spectrum of products in the fields of optics, electronics, and precision engineering.
- Celestron
- Offers a wide range of telescopes, binoculars, spotting scopes, and optical accessories.
- Celight
- Delivers digital coherent optical innovations to system vendors through its VectorWAVE products, subsystems, and integrated electro-optical components.
- Centre Optics
- Research and development of optical elements such as custom designed, narrow band, and bandpass interference filters, working in the ultra-violet, visible, and infrared spectra.
- Changchun Fortune Optronics, Inc.
- Manufacturer of lenses, windows, mirrors, prisms, beamsplitters, narrow bandpass filters, and diffraction grating. Specialises in the manufacture of cylindrical lens, ball lens, rod lens, and condenser lens products.
- China National Electronics Import and Export South-China
- Offers telescopes, binoculars, electrical appliances, and more.
- Coastal Optical Systems, Inc. (COSI)
- Designs and builds custom optical assemblies such as projection lenses, telescopes and camera lenses.
- CogniTens 3D Vision Systems Ltd.
- Manufactures and markets 3D vision measurement systems, to enable the reconstruction of 3D objects from 2D digital images in industrial applications.
- Computer Optics Inc
- Manufactures and designs optics for machine vision, zoom lenses and telecentric lenses.
- Contour Metrological & Manufacturing, Inc.
- Designs and manufactures ultra-precision optical components. Diamond turning, aspheric, non-rotational optic grinding, optical moulds.
- Control Optics Corporation
- Stock and designed opticals, fibre optics, holographic systems, laser diodes, and related equipment.
- Control Vision Inc
- Providing imaging solutions for extreme processes like laser and arc welding, thermal and plasma spray processes.
- Corion
- Manufacturer of optical interference bandpass filters.
- Cox Analytical Systems
- Specialises in micro-beam capillary optics technology and related analytical problem solving.
- CSO
- In Florence, Italy.
- Custom Scientific - Phoenix, AZ
- Suppliers of custom optics, optical filters, and optical coatings for high-performance imaging and spectroscopy.
- CVI Laser Corporation
- Laser optics, coatings, filters, mounts, instruments.
- Digibotics, Inc
- Manufacturer of laser-based 3D digitizing systems.
- Dr. Hugo Anders
- Dielectrical interference filters for industry and science. In German and English.
- Eastman Kodak Commercial and Government Systems
- Produces mirrors, optical systems, and camera payloads for remote sensing astronomy, space imaging, and optical systems.
- ebs-thermography
- Distributor of IR-thermographic systems and producer of PicWin-IRIS IR image analyzing software for varied applications.
- Edmund Scientific
- Manufacturer and supplier of optical components that include lenses, prisms, mirrors, fibre optics, filters, lasers, machine vision, telescopes, microscopes, magnifiers, and binoculars.
- EFOS Inc.
- Provides light-based technology engineering solutions for manufacturing and science.
- Elcan Optical Technologies
- Specialising in the design and manufacture of precision opto-mechanical and electro-optical systems and subsystems for the commercial, medical, industrial, and defence markets.
- ElectroImage, Inc.
- Distributor of imaging products including digital cameras for microscopy and devices to image electron microscope negatives.
- ENJ Medical, Inc.
- Provides optical assemblies in class 10,000 cleanroom, optical and mechanical design services, supplies custom components, medical diagnostic devices, and more.
- Essex Corporation
- Developer of optoelectronic processors for image, signal, and other kinds of technical data processing.
- Exotech Incorporated
- Designs and manufactures electro-optical instruments, including radiometers, laser colony scanners, and crystallographic scanners.
- Fairchild Imaging
- Produces industrial, scientific, medical, and aerospace OEM imaging solutions including CCD and CMOS image sensors and cameras.
- Fastec Imaging
- Designs and manufactures high speed digital video cameras used in industrial, scientific, and sport applications to slow down high speed events.
- Fiberoptics Technology, Inc.
- Custom manufacturer of glass, plastic, and liquid fibre optics for illumination and sensing. Products for visable and ultra-violet applications.
- FLIR Infrared Cameras
- Offers infrared cameras for use in manufacturing, inspection, security, research, and other applications.
- Flir Systems, Inc.
- Produces and sells infrared cameras, thermal imaging software, and temperature measurement systems for commercial, industrial, and government use.
- FOCUS GmbH
- Manufactures equipment for electron spectroscopy and surface analysis including evaporators, analyzers, and microscopes.
- Fresnel Technologies, Inc.
- Manufacturer of moulded plastics, Fresnel lenses, and related optical components.
- Gamma Scientific
- Manufacturer of light measurement instruments including spectroradiometers, photometers, colorimeters, radiometers, and flash measurement systems.
- Geltech, Inc.
- Advanced optical components.
- Gem-Optech
- Manufacturer of optical equipments and instruments, surgical microscopes, and more.
- Gigahertz-Optik
- Provides light measurement tools, including hand held light meters, colorimeters, optometers, and custom LED measurement devices.
- Glass Mountain Optics, Inc.
- Visual display systems for simulation applications, from entertainment displays to projected collimated displays for flight simulation.
- GlobalSpec: Optical Components
- Offers access to fibre optics, optical components, optoelectronics, and other optical equipment suppliers.
- Gooch and Housego@
- Great Wall (Optical) Plastic Works
- Manufactures optical products including microscopes, binoculars, monoculars, telescopes, and magnifiers.
- Guangzhou SAT Infrared Technology Company, Ltd.
- Manufactures infrared cameras and thermography equipment.
- Guernsey Coating Laboratory Inc.
- Optical thin film coating, dielectric, metalic, laser mirrors and polarizers.
- Heptagon Oy
- Offering design and consulting services for diffractive optics.
- Heraeus Amersil
- Suppliers of silica glass and fused quartz products for optics, semiconductor, lamp, and fibre optics industries.
- HOBI Labs
- Private marine sciences laboratory specialising in optical oceanography and hydro-optical instrumentation. Conducts oceanographic research in areas of physics and biology.
- Hwa Tang Optical Industries Co., Ltd.
- Manufacture cameras, binoculars, telescopes, microscopes, acrylic rules, and lining testers.
- IBSEN Micro Structures A/S
- Specialising in phase masks, calibration standards and diffractive optics.
- II-VI Incorporated
- Manufactures optical and opto-electronic components, devices, and materials for infrared, near-infrared, visible light, X-ray, and gamma-ray instrumentation.
- ILX Lightwave Corporation
- Provides electro-optic instrumentation to the laser diode research community.
- Imaging Associates
- Specialises in biomedical, materials science, and cytogenetic imaging, providing microscopy solutions for digital image capture, image analysis, and documentation.
- Imaging Planet
- Offers video and digital cameras, monitors, printers, and other equipment used for scientific and industrial applications.
- IMRA America, Inc.
- Researches and develops lasers, optical receivers, photonics sensors and other devices for use in scientific research, telecommunications, advanced vehicles and automated highway systems.
- Industrial Precision Instruments
- Suppliers of infrared thermography cameras, pH instruments, gas detection systems, temperature and pressure gauges, and transformers.
- Infrared Cameras Inc.
- ICI manufactures a unique selection of infrared camera solutions for multiple applications, including process control, security, medical, and preventative maintenance.
- Innov-X Systems
- Designs, manufactures, and sells portable x-ray fluorescence XRF analyzers. Innov-X features hand-held EDXRF systems for field, lab, online, and OEM materials analysis.
- Intelligent Imaging Innovations, Inc
- Makers of digital confocal microscopy workstations and SlideBook 2D/3D image processing and microscope control software for MacOS and Windows '95.
- International Light, Inc.
- Light Measurement Instruments: light meters, radiometers, photometers, spectroradiometers, UV detectors.
- INTOR Inc.
- Manufacturer of thin film optical filters and integrated optical filter/silicon diode assemblies.
- Inventex, Inc
- Offers precision machining of glass and ceramic optical components.
- Janos Technology
- Designs and manufactures custom infrared optics, optical systems, and assemblies.
- JML Optical Industries, Inc
- Designer, manufacturer, and distributor of precision optical components and systems.
- Jubo
- Optical coating material manufacturer and world-wide supplier.
- Kairos Scientific
- Digital imaging spectroscopy (DIS) combines the power of image processing and spectroscopy. Broad applications ranging from the material sciences to pathology.
- Kaiser Optical Systems, Inc.
- Manufacturer of spectrometers, analyzers, holographic filters, spectrographs, & instruments for process, analytical and research Raman spectroscopy applications.
- Kestrel Corporation
- Specialising in multispectral and hyperspectral imaging systems/software for airborne remote sensing, and parallel non-invasive systems for biomedicine.
- Kimball Physics, Inc.
- Specialises in electron and ion optics.
- Klarmann Rulings, Inc.
- Manufacturer of IMA reticles, Walton and Beckets, and other select glass reticle patterns.
- Kreischer Optics, Ltd.
- Optical components and systems.
- Kruess
- Manufacturer of microscopes, refractometers, spectroscopes, spectrophotometers, gemmological instruments.
- Labtek
- Supplier of stereo microscopes, video and measuring systems, video printers and supplies, monitors, CCD cameras, illuminators, and digital and dial gauges.
- LaCroix Optical Co.
- Manufacturer of precision optical components to customer specifications, including simple lenses, achromats, windows, wedges, prisms, and mirrors.
- Lambda Research Corporation
- Publishes TracePro software for illumination and stray light, and OSLO software for lens and optical systems design.
- Laser Beam Products
- Manufactures mirrors for high powered lasers and CO2 laser cutters.
- Laser Design, Inc.
- Manufactures 3D laser digitizing systems and software.
- Latigo Optics
- Infrared and optical instrument, flir, microscope, and electro-optical medical device design; contract optical engineering; and marketing services.
- Leica Microsystems, Inc.
- Manufacturers of hand held refractometers, diagnostic equipment, microscopes, and more.
- Leiner Associates, Inc.
- Services include design/development of optical equipment, endoscopes, and fiberoptics. Also provides testing and evaluation, consulting, and repairs.
- Lightglass Optics
- Sells pre-owned optomechanical equipment by Newport, K&E, and other manufacturers.
- LightLab International
- Offers optics and radiometry services, including photometric and thermal tests. Products include instrumentation and software for the lighting industry.
- Lightpath Technologies
- Automated manufacturer of optical components and sub-assemblies for the buildout of telecommunications networks.
- LIMO: Micro-Optics & Laser Systems
- Offers high-power diode laser modules with diffraction-limited beam quality.
- LINOS Photonics Inc.
- Designs and manufactures optical, opto-mechanical, and opto-electronic components and systems.
- Lixi, Inc.
- Offers a range of x-ray devices for non-destructive testing and inspection and medical applications.
- LOMO plc
- Offers regular and surgical microscopes, telescopes, endoscopes, night vision devices, cameras, and military equipment.
- Luxel Corporation
- Supplies submicron filters for soft x-ray and EUV research and fabricates ultra-thin foils for use as bandpass filters for laboratory and space research.
- Maier Photonics
- Specialises in the design and manufacturing of precision optical filters. Offers dielectric coatings in the UV-VIS-NIR range. Stock and custom items available.
- Meade Instruments
- Manufacturer of astronomical telescopes, CCD imaging systems, telescope accessories, binoculars, and microscopes.
- Melles Griot
- Designs, manufactures, and distributes lasers, optics, and advanced fibre products worldwide.
- Meopta Prerov
- Producing lenses, scopes, enlargers, projectors, microscopes, cameras, and more.
- Microcosm, Inc.
- Minolta Instruments
- Offers 3D colour digitizers, colorimeters, spectrophotometers, and light and colour measurement instruments.
- Mirotek
- Manufacturer of front surface optical quality mirrors and mirror products.
- NAC, Inc.
- Development and manufacture of speciality imaging products used in research, test, and manufacturing environments.
- National Optics Institute - Institut national d'optique (INO)
- Research and development in optics and photonics, as well as products and services.
- National Optronics
- Manufacturers of optical machinery for use in surfacing and finishing plastic lenses.
- Nebula
- Offers loupes and lights used for the detection of inclusions in gemstones.
- Newport Corporation
- Offers solutions in photonics, lasers, precision optics, and motion and vibration control.
- Newport Industrial Glass, Inc.
- Products including telescope kits, glass art, optical material, optics, fabricated glass, quartz and others.
- Numare Spectralab, Inc.
- NMR service and analysis.
- Nutfield Technology
- Manufactures advanced galvanometer-based optical scanning products and scan heads.
- Oceanside Photo and Telescope
- Stocks telescopes, binoculars, microscopes, night vision equipment, cameras, and darkroom supplies.
- OG System, Inc.
- Offers an optical gauging system that measures surfaces for flatness.
- OHARA Corporation
- Manufacturer of precision optical glass and supplier of lens blanks.
- OKO Technologies
- Manufacturer of wavefront sensors, micromachined membrane deformable mirrors, and electronic drivers for adaptive optics.
- Oldham Optical UK
- Manufacturer of mirrors and other optical components to the amateur and proffessional market.
- Olympus America
- Manufactures a range of optical products for consumer, healthcare, and business markets. Products include digital and film cameras, printers, and accessories, as well as medical and diagnostic imaging equipment and microscopes.
- Onyx Optics, Inc.
- Manufactures composite crystal and glass components for solid state lasers. Patented Adhesive-Free Bond technology enables strong composites with improved beam quality, higher efficiency, and increased output power.
- Opcon Associates
- Consulting optical designers specialising in zoom lenses and in the use of aspherical surfaces in glass and plastic lenses for imaging and non-imaging applications.
- Optical Coating Laboratory
- Manufacturer of optical thin film coated components used to manage light.
- Optical Coating Technologies, Inc.
- Specialising in dielectric, metallic, dichroic antireflection, beamsplitter, and hot mirrors, cold mirrors, and colour filters. thin film software.
- Optical Components, Inc.
- Custom fabrication and coating supplier of precision optical components for uv, visible and infra-red in prototype and production quantities.
- Optical Mechanics, Inc. (OMI)
- Manufactures high-precision Newtonian and Cassegran optics, research-grade robotic telescopes, and optomechanincal devices such as Lida and optical tube assemblies.
- Optical Product Development, Inc.
- Product development firm specialising in optical systems, lens design, and manufacturing of custom optics and lenses.
- Optical Research Associates
- A world-leading supplier of optical engineering software and design services.
- Optical Solutions
- Near infrared spectrometers, photometers, fibre optic probes, fibre diameter, fibre coating concentricity.
- Optical Vision
- Importer, exporter, and distributor of a range of scientific and consumer optical products.
- OpticalCoatings.com
- Manufactures thin film optical coatings. Specialises in flat panel and enclosure glass coatings.
- Opticoat Associates Inc
- Manufacturing and design engineering of custom thin film optical coatings, stock mirrors and beamsplitters, infrared low emissivity material.
- OptiComp Corporation
- Optics 1, Inc.
- Specialises in lens and lens system design, optical and opto-mechanical engineering from prototype through production for visible, UV, and IR systems.
- Optics.net
- Provides a directory, forum, and buyer's guide dedicated to promoting and advancing science, technology, and business opportunities for the optics and photonics community.
- OpticsPlanet.com
- Offers a variety of professional optic equipment, including microscopes, telescopes, night vision, and accessories.
- Optikos Corporation
- Optical engineering, manufacturing, and measurement products and services.
- Optima Precision Inc.
- Manufacturer of laser diode optics, laser diode components and assemblies. off-the-shelf products and custom designs.
- Optima Research
- Supplies and distributes photonic products, software, and services.
- Optimum Technologies
- Full service product development and contract manufacturing company specialising in optical technologies for the life sciences.
- Optometrics LLC
- Features a worldwide supplier of optical components and specialised optical systems.
- OptoTherm Thermal Imaging
- Manufactures thermal imaging systems for electronics testing, general and medical R&D, microscopy, and fever screening applications.
- Optronic AB
- Specialists in non-contact measurements and wireless communication.
- Optronic Laboratories
- Providing instrumentation, standards and services for the measurement of optical radiation.
- Orion Telescope and Binocular Center
- Print and online catalogue of telescopes, binoculars, and accessories.
- P.A. Clausing Inc.
- Mirrors and optical coatings on substrates.
- Parallax Research, Inc.
- Produces x-ray optics and analytical instruments including the Low Energy X-ray Spectrometer (LEXS), a WDS spectrometer for SEM, and small spot XRF.
- PCO Computer Optics
- Manufacturer of specialised fast and sensitive video camera systems using CCD and CMOS technology.
- PerkinElmer Optoelectronics
- Develops, manufactures, and markets optoelectronic devices, such as sensors, photodiode arrays, multiplexers, and imaging products for the biomedical, communications, and industrial markets.
- Photronix (M) Sdn Bhd
- Specialises in research, development, and manufacturing of fibre optic communications, sensing, and optoelectronics components, as well as fibre Bragg grating technology.
- Precision Detectors, Inc.
- Designs and manufactures laser light scattering instruments for science and industry.
- Precision Optics Corporation, Inc.
- Advanced lens design, thin film coating design, and optical systems design ranging from prototypes to high-volume manufacturing.
- Precision-Optical Engineering
- Diamond machining of reflective & refractive surfaces. Manufacturing of interferometers and laser beam monitoring equipment.
- Quantum Logic Corp
- Manufactures optical laser/microcomputer pyrometers used for temperature measurement.
- Radiant Imaging
- Optical and illumination engineering design services, CCD light measurement systems, software, and light source characterization files.
- Rawson Optics, Inc.
- Provides optical and lens design, protyping, and short-run manufacturing services.
- Rayotek Scientific Inc.
- Single-source facility for designing, engineering, and manufacturing sapphire, glass, and fused quartz and silica products. Providing creative solutions for the scientific and commercial industries and manufacturing state-of-the-art glass and sapphire products.
- Raytheon Commercial Infrared
- Develops everyday applications for infrared camera technology.
- Red Optronics
- Manufactures laser crystals and fibre optical components including waveplates, lenses, prisms, polarizers, windows, micro optics, and optical assemblies.
- Reflexite Instrumentation Optics
- Produces optical components including passive infrared (PIR), Fresnel lenses, and digital imaging for the security and lighting control industries.
- Reynard Corporation
- Global supplier of optical components to the commercial and military aerospace markets. The site includes R&D capabilities, coating services, stock products, site maps, and contact information.
- Richardson Grating Laboratory
- Manufacturer of diffraction gratings.
- RMT Ltd
- Designer and manufacturer of thermoelectric (Peltier) modules and TEC submounts. Products include NDIR gas analyzers, mid-IR LE and detectors.
- Rofin Australia
- Develops and markets specialist products, systems and analytical instruments based on optical technology, including forensic science instruments.
- Ross Optical Industries
- Manufactures and supplies precision optical lenses, prisms, windows, and mirrors.
- Scitec Instruments Ltd
- Design and manufacture optical choppers and lock-in amplifiers.
- SE-IR Corporation
- High performance Infrared imaging systems for evaluating and operating state of the art 2D staring IR FPAs. Solutions covering the NIR, SWIR, MWIR, LWIR and VLWIR.
 Singapore Photonics and Optics
- Industry directory.- Solatell
- Sells ultraviolet spectroradiometers in a variety of forms.
- Solutionix
- 3D scanner manufacturer, provides Rexcan series based on white light scan. Rexcan can be used for reverse engineering, 3D measuring inspection, and more.
- SOPRA
- Manufactures optical metrologic systems, including high energy excimer lasers, high resolution monochromators, and spectroscopic ellipsometers for research and development.
- Spectra Services
- Supplier of optical and digital imaging products for science, education and industry.
- Spectro Film
- Manufacturer of optical and stocking laser diode filters.
- Spindler & Hoyer, Inc.
- Manufacturer of precision optics and optomechanics for the OEM and laboratory.
- Spiricon, Inc.
- Instruments for laser beam profile analysis, diagnostics, display and maximizing performance. computer with CCD and solid-state pyroelectric cameras, arrays, infrared, ultraviolet, visible.
- Spot srl
- Systems for measuring optical quality of telescopes and optical elements and beam-diagnostics of lasers.
- Structure Probe, Inc.
- Manufactures and distributes sample preparation equipment and supplies used in electron microscopy and microanalysis laboratories.
- Sycamore Glass Components
- Custom machined optical glass components. 94% and 97% reflective front surface mirror, anti-reflection coatings.
- Sydor Optics
- Supplies optical components for a large number of applications in a variety of industries.
- Taizhou Jingda Optic Electric Co.
- Manufactures fibre optic components used in optic communication including lens, wave plates, wedges, prisms, and corner cubers.
- Talktronics, Inc.
- Design and manufacture of speech synthesizers for consumer, commercial, industrial, automotive, and aerospace applications.
- Thermal Infrared Camera Predictive Maintenance (TICPM)
- Offers new and used equipment and professional resources for PDM thermography inspections.
- Thermal-Eye
- Manufactures infrared thermal imaging security cameras, scopes, optical weapon sights, sensors and FLIR night vision cameras.
- Thin Film Imaging Technologies
- Offers high performance optical filters. Products include bandpass, neutral density, and hot/cold mirrors.
- Thorlabs, Inc.
- Offers optics, optoelectronics and mechanics, laser diodes, fibre optics, ASE sources, and optical amplifiers.
- Topcon Corporation@
- Tower Optical Corporation
- Manufacturer of waveplates, lenses, prisms, mirrors, polarizers, and UV microscope objectives.
- Tricor Systems Inc.
- Designer and manufacturer of stock and custom instrumentation products including photometers, switch testers, gloss measurement, surface analysis systems, simulators, and contract manufacturing.
- U.S. Precision Lens
- Specialists in precision polymer optics.
- UDT Instruments
- Light measurement instruments including photometers, colorimeters, radiometers, and position-sensing systems.
- Utron
- Manufacturer of optical lenses for machine vision. Products include telecentric, macro zoom, CCTV, and line scan lenses.
- Vermont Photonics, Inc.
- Provides precision optical measuring equipment to science, industry, and defence. Visual and electronic autocollimators for precision angle measurement.
- VIBGYOR Optical Systems Corporation
- Manufacturer of optical components and assemblies for the commercial, military, and medical industries.
- Vibration Engineering Consultants
- VLOC
- Manufacturer of laser optics, crystals, and thin film coatings.
- WaveFront
- Sensors and diffractive optics.
- Wavelength Technology
- Offers CO2 and Nd:YAG laser optics and optical components for industrial, medical, and scientific research laser applications.
- WavePrecision, Inc.
- Manufactures high-precision micro-optics such as polarizing beamsplitters, etalons, prisms, and attenuators for the telecommunications industry.
- Wright Scientific
- Engineers and designs custom lens, instruments, and optical systems.
- X-Ray Optical Systems, Inc.
- Manufacturer of capaillary optics to collimate or focus x-rays and neutrons.
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