Request Info4D Technology CorporationThe AccuFiz Laser Interferometer is compact, lightweight and extremely rigid, for maximum stability in any orientation or environment. The new AccuFiz Surface Isolation Source interferometer includes a second, external, short coherence laser to isolate and measure plane parallel optical surfaces. Use the AccuFiz SIS to measure the surfaces, wedge, homogeneity and optical thickness of afocal optics. Then, switch easily to the standard source to measure a wide range of focal and afocal optics, like a standard Fizeau interferometer. AccuFiz provides industry leading repeatability in...See full productRelated content from Photonics MediaPRODUCTSVision Spectra Autumn 2023 IssueSurface Inspection SystemThe ZEISS ABIS III is designed for reliable and early inspection of the entire component surface, within cycle time. The combination of projector, cameras, lighting, and the new software ZEISS ABIS...Photonics.com 4/21/2023Inductive EncoderThe field calibration incOder® product from Celera Motion is designed for applications that require precise angle measurements in adverse conditions. Applications include field robotics, camera...Photonics.com 2/13/2023Handheld Laser ScannerThe ZEISS T-SCAN hawk 2 handheld 3D laser scanner from Zeiss is a portable, reliable tool to capture data with metrology-grade precision in quality control or reverse engineering, maintenance,...Photonics.com 5/13/2022Metrology and Surface Imaging Software PlatformThe fully 64-bit TrueMap® 6 software platform for surface imaging and analysis from TrueGage contains multi-threaded algorithms, a redesigned user interface, and new capabilities. Users of...ARTICLESBioPhotonics.com March 2024 IssueLuminate NY Names Cohort Seven CompaniesEmpire State Development has named the 10 companies selected to participate in round seven of the Luminate NY accelerator program, investment fund, and competition. Each finalist will receive an...Photonics Spectra January 2023 IssueFrequency Comb Advancement Improves Speed, Precision of MeasurementsResearchers at NIST have developed a method to enable frequency combs to measure light pulse arrival times with greater sensitivity than was previously possible — potentially improving...Photonics.com 12/21/2022In-Place Machining Company Acquires East Coast MetrologyIn-Place Machining (IPM), a provider of measurement and alignment services, has acquired East Coast Metrology (ECM), a contract measurement company. The acquisition is part of IPM’s long-term...Vision Spectra Summer 2023 IssueTKH Vision Group Opens Vision Solution CenterTKH Vision has opened the TKH Vision Solution Center in Konstanz, Germany. The center, located at the Chromasens headquarters, will serve as a demonstration and experience center for TKH...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookInterferometry: Measuring with LightAn interferometer is an instrument that compares the position or surface structure of two objects. The basic two-beam division of amplitude interferometer components consists of a light source, a...Photonics HandbookMeasuring Aspheres: Selecting the Best TechniqueThe benefits of aspheric lenses are numerous: They allow for a reduction in spherical aberrations and are ideal for focusing or collimating light, as they can achieve a low ƒ-number. Aspheres...Photonics HandbookAspheric Lenses: Optimizing the DesignWith the understanding of aspheric lens manufacturing provided in part one of this article, designers have the tools to optimize their aspheres; the next step is to understand how to specify and...Photonics HandbookDynamic Interferometry: Getting Rid of the JittersConditions on the factory floor and in industrial cleanrooms with high-capacity air filtration systems can hamper the use of interferometry. Another problem is the testing of large-aperture mirrors...WHITEPAPERSPhotonics.com 9/1/2022Precision Motion and How to Achieve ItNanoscale motion requires fastidious attention to instrumentation, passive controls, and experiment design. Most users have experience in motion control within the sphere of the microscale. In this...Photonics.com 6/1/20223 Questions to Ask Before Buying Infrared InterferometryImportant considerations in obtaining infrared optical metrology, for measuring transmitted wavefront error, optical quality, and surface quality. The paper asks questions to help guide the reader in...Photonics.com 12/20/2022Seiwa Inspection SystemThis document outlines how Seiwa Optical's fully automated inspection equipment can increase the threshold, reduce chip loss, and decrease production costs of wafer manufacturing.Photonics.com 4/27/2022How the Neo Spectroradiometer Drastically Improves Filter QualityAdmesy develops spectroradiometers, colorimeters, and light meters. They are used in large volume 24/7 production testing as well as in smaller volume niche system manufacturing. One application...WEBINARSPhotonics.com 1/11/2022Computer-Generated Hologram Metrology Alignment: Challenges and SolutionsComputer Generated Hologram (CGH) metrology has several benefits, such as 1/100th wave accuracy and snapshot measurement time. However, alignment of aspheric and freeform parts in CGH setups can be...Photonics.com 4/25/2013Enabling Technology for Highly Aspheric or Free-Form Optics ManufacturingFree Webinar Additional Questions & Answers from the Webinar (below) Dr. Dae Wook Kim Assistant Research Professor College of Optical Sciences University of Arizona ...Photonics.com 11/15/2023High Quality Measurements of Mid Spatial Frequencies in Optical SurfacesModern computer numerical control (CNC) polishing has revolutionized optical component manufacturing by enabling both more precise and wilder surface shapes to be deterministically manufactured....Photonics.com 1/11/2023Minimizing Interferometric Measurement Variations During Optical ManufacturingOptical manufacturing has become increasingly challenging as specifications tighten for wavefronts, form, slopes, and mid-spatial frequency features. Interferometers are essential tools to control...PHOTONICS DICTIONARY+ TERMSPhotonics DictionaryRitchey-Common testAn interferometric method for describing the surface shape of large coated or uncoated optical flats. The procedure uses a commercially available small-aperture phase-shifting interferometer for...Photonics Dictionarymirror testingThe observation and measurement of the flatness of a mirror surface by contacting an optical flat with the mirror. The process generally is done before coating so as not to damage the delicate coated...Photonics Dictionaryoptical flatA piece of glass, pyrex or quartz having one or both surfaces carefully ground and polished plano, generally flat to less than a tenth of a wavelength. Optical flats are used in surface testing to...Photonics Dictionarycontact blockingAlso called color blocking. The formation of a block by making optical contact between a number of optical elements and a large optical flat.VIDEOSPhotonics.com 10/27/2022Introduction to Verifire Asphere+ - Zygo CorporationThe next era of fast, noncontact, high-resolution 3D metrology of aspheric optics is here! VFA+ pushes the boundaries of what is possible in the design and production of precise aspheric surfaces....Photonics.com 4/8/2019Lacroix - Measuring Aspheres in a 3D WorldThis video hits the key points made in our "Measuring Aspheres in a 3D World" white paper. The white paper provides a basic practical guide on the benefits of 3D measurements of aspheres as well as a...Photonics.com 10/9/2020Product Demo: Display Testing in AR and VR HeadsetsEvaluating the visual quality of displays as viewed through augmented and virtual reality headsets requires testing from the vantage point of the user. Radiant Vision Systems provides a comprehensive...Photonics.com 12/6/2022Telecentric Lenses - Shanghai OpticsTelecentric Lenses are widely used in metrology instruments, laser marking systems, and AOI (Automatic Optical Inspection) machines. Here’s a 360 view of one of our custom Telecentric Lenses which...PHOTONICS BUYERS' GUIDE CATEGORIESOptical FlatsAn optical flat is a piece of glass, pyrex, or quartz having one or both surfaces carefully ground and polished plano, generally flat to less than a tenth of a wavelength. Optical flats are used in...Fizeau InterferometersA fizeau interferometer is a type of interferometer noted for producing narrow multiple-beam interference fringes. As a result, when compared with the Twyman-Green, the Fizeau interferometer has...Optical Testing InstrumentsInfrared InterferometersCOMPANIESPhotonics Buyers' Guide4D Technology Corporation4D Technology designs and manufactures laser interferometers, surface roughness profilers, snapshot micropolarizer cameras, and handheld surface gauges, for accurate measurement of optics, optical...Photonics Buyers' GuidePrecision OpticalPrecision Optical: our name embodies who we are. Since 1959, Precision Optical has earned a widely recognized reputation for reliability, value, and quality precision optics for the most demanding...Photonics Buyers' GuideLaCroix Precision OpticsThe LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have guided LaCroix Precision Optics to become the premier precision optics...Photonics Buyers' GuideRainbow Research Optics LLCPrototype to Production Quantities | Challenging Designs | Fast Deliveries Since 1995, Rainbow Research Optics has been providing optical components, optical coatings, and optomechanical...