Request Info4D Technology CorporationEnabling the measurement of 300-mm-diameter optics, a system from 4D Technology has been designed around a standard, 100-mm aperture AccuFiz interferometer for large afocal optics and large-diameter curved surfaces. The suite of 300-mm components includes a compact 100- to 300-mm beam expander that can be used in a horizontal or look-down measurement configuration. Kinematic mounting and a visible coarse alignment laser quickly positions the reference and test optics for rapid test setup. Mounts provide highly repeatable tip, tilt and rotation control, while precise adjustments enable...See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra September 2022 IssueFizeau InterferometerThe AccuFiz® Fizeau interferometer from 4D Technology Corp. now features a 9-MP camera for higher slope tolerance through superior spatial resolution. 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It is a promising...PHOTONICS HANDBOOK ARTICLESPhotonics 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 HandbookUnderstanding Surface Quality: A Practical GuideSurface quality has become one of the most poorly understood specifications in the optics industry. A significant portion of the confusion stems from the two major competing (and largely...Photonics HandbookLaser Measurement Systems: Best PracticesGiven the pace at which technology advances, there always seems to be a learning curve. With the abundance of consumer electronics available, there typically is no right or wrong way to use these...WHITEPAPERSPhotonics.com 9/29/2023Accuracy in Optical DesignAnswering some common questions new users of optical design and analysis software have are “How accurate are the results?” or “Can I trust the results I get?” and discussing the importance of...Photonics.com 4/12/2024Mirrors for Big and Scary FS, PS LasersWhile high laser-induced damage threshold is a buzzword when talking femtosecond & picosecond optics, it is not (only) the nominal LIDT value that matters. Color-change effect is an arch-enemy and a...Photonics.com 4/5/2024Optics for Medical Laser ApplicationsHighly customized and application optimized laser optics for demanding applications from demanding markets.Photonics.com 4/20/2023Choosing a Portable Raman SpectrometerA good portable Raman spectrometer bridges the gap in performance, capability, and size between handheld and benchtop Raman spectroscopy. It enables new point-of-use applications in medicine and...WEBINARSPhotonics.com 10/8/2020Intelligent Motion Systems Based on Fast Optimization Algorithms and Hexapod 6-Axis MechanismsPART 1: Hexapods are 6-axis parallel-kinematic machines often employed to solve complex multi-axis precision positioning and motion applications in fields such as photonics, optics, metrology,...Photonics.com 3/21/2013Techniques in Biophotonic ImagingFREE WEBINAR Sponsored by: Hamamatsu & Applied Scientific Instrumentation Additional Questions & Answers from the webinar are below: Dr. Kimani C. Toussaint Jr. Quantitative...Photonics.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 9/23/2019Solving Challenges in Defect Inspection of Advanced OpticsOptical components such as lenses, mirrors, prisms, and windows undergo tight quality control to deliver optimal optical transfer function. Any scratch, dig, chip pinhole, or other defect will...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionarymirror mountA mirror mount is a mechanical device used to secure and precisely position mirrors in optical systems. Mirrors are essential components in optical setups for reflecting light or redirecting laser...Photonics DictionaryautocollimatorAn autocollimator is an optical instrument used for measuring small angular deviations with high precision. It operates on the principle of autocollimation, where a light source is directed onto a...Photonics Dictionaryscanning electron microscopyScanning electron microscopy (SEM) is an advanced imaging technique used in microscopy to obtain high-resolution, three-dimensional images of the surfaces of solid specimens. SEM achieves this by...Photonics DictionaryMach-Zehnder interferometerA Mach-Zehnder interferometer is an optical device used to measure the phase difference between two collimated beams of light. It is named after the physicists Ludwig Mach and Ludwig Zehnder, who...VIDEOSPhotonics.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.com 7/2/2018Light Tomorrow with TodayLuminate NY, the only optics, photonics and imaging (OPI) accelerator and investment fund in the world, announced the final winners at the Light Tomorrow with Today event in Rochester, NY. For the...Photonics.com 2/21/2018Photonics on the Showroom Floor and in the Lab - LIGHT MATTERS 02.2018On this month's episode of Light Matters, we take you on a brief tour of the Higgins Laboratories at Worcester Polytechnic Institute (WPI). Quinsigamond Community College and WPI received a $4M grant...PHOTONICS BUYERS' GUIDE CATEGORIESLong-Wavelength Injection LasersTi:Sapphire LasersA titanium:sapphire laser is a solid-state laser that is continuously tunable in the wavelength region from 700 to 1100 nm. It is suitable for both pulsed and continuous-wave operation. Usually...Beam ExpandersA beam expander is a system of optical components designed to increase the diameter of a radiation beam. Usually an afocal system.Far-Infrared LasersA far-infrared laser is a laser with output over a wide range of wavelengths spanning the far-infrared region of the spectrum (30 to 1000 µm); typically, it consists of a metal or dielectric...COMPANIESPhotonics 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' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideOptikos CorporationThe Optical Engineering Experts® Optikos designs and manufactures metrology products for measuring and assuring optical image quality; and provides optical engineering design, development,...Photonics Buyers' GuideExcelitas Technologies Corp.Excelitas Technologies® Corp. is a leading industrial technology manufacturer focused on delivering innovative, market-driven photonic solutions to meet the illumination, optical, optronic,...