Request InfoMetrology ConceptsThe INTERFIRE II product line of IR interferometers spans NIR, SWIR, MWIR and LWIR wavelengths. These compact phase-shifting interferometers offer single- or dual-wavelength operation and are supported with a wide range of optical accessories for testing infrared material and optical systems.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra July 2023 IssueMetrology SystemThe MESO™ metrology solution from Imagine Optic is designed for at-wavelength testing of flat surfaces. The system offers shop floor measurements for quality control and in situ process...Promoted Content May 2022 IssuePhaseCam MWIRThe PhaseCam MWIR is a dual-port, midwave infrared interferometer that measures optical surface shape and wavefront error at a 3.39 µm infrared wavelength with incredibly fast acquisition for...Vision Spectra Summer 2023 IssueTelecentric LensesThe TC4MHRP and TC4MHRP CORE high-resolution telecentric lenses from Opto Engineering are designed for sensors up to 4/3-in. With a large optical aperture, the optics offer low distortion, high...Vision Spectra Summer 2023 IssueSwir LensThe Ophir LightIR 10-135 mm and 18-225 mm MWIR f/3.6 continuous zoom lenses from MKS Instruments Inc. are compact, high-performance, motorized continuous zoom lenses. The lightweight thermal...ARTICLESPhotonics.com 6/29/2022Nonlinear Optical Sensor Avoids Precision/Speed Trade-OffAn optical measurement method devised by a team of AMOLF researchers aims to simplify and streamline the ability to capture measurements from signals that are barely larger than the noise contained...Photonics Spectra October 2022 IssueDefined Limits Help to Solidify Use of Spaceplates in Optical SystemsResearchers at Cornell University have proposed a definition for the fundamental and practical limits of spaceplates, a technology developed to support the miniaturization of optical systems....Photonics.com 9/28/2022G&H to Supply Periscopes for UK Tank ProgramG&H has won a contract to supply periscope technology as part of the U.K.’s Challenger 3 program, to upgrade the British army’s main battle tanks. Rheinmetall Electronics UK awarded...Photonics Spectra August 2022 IssueLiquid Silica Resin Optimizes 3D Printing for Complex Micro-OpticsA liquid silica resin (LSR) developed by researchers at the University of Arizona has proven successful as a 3D-printing medium for complex micro-optics. The organic-inorganic hybrid material has...PHOTONICS HANDBOOK ARTICLESPhotonics 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 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 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 HandbookUltraviolet Filters: Past and PresentIn their earliest forms, UV bandpass filters that were optimized for wavelengths less than 400 nm, such as the Schott UG or the Hoya U-series, were constructed of absorbing compounds in glass. Such...WHITEPAPERSPhotonics.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 5/22/2023Dual-Band Infrared Bandpass FiltersDual-Band IR filters for the MWIR and LWIR provide high performance in-band and out-of-band.Photonics.com 5/22/2023Bullseye® Apodizing FiltersBullseye Apodizing filters are customizable density gradient filters that change radially from the center to the outside of the optical component. These filters are used to eliminate undesirable...Photonics.com 8/10/2022Linear Apodizing FiltersThe Linear Apodizing filters are used to eliminate undesirable intensity variations in optical systems such as in spectrometers. 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The resulting data allows correction for attenuation...Photonics Dictionarygrating beamsplitterA grating beamsplitter is an optical device that utilizes the principles of diffraction to split a beam of light into multiple beams, often redirecting them at specific angles. It is based on the...VIDEOSPhotonics.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 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 10/27/2022Zygo Management Re-Brand PodcastHear first-hand from our management team about the thought process behind Zygo's rebrand and how it went down.Photonics.com 4/28/2020Compact MEMS-FPI Sensor for Portable NIR SpectrometersHamamatsu’s MEMS-FPI spectrum sensors utilize a built-in MEMS Fabry-Perot interferometer and InGaAs PIN photodiode to measure NIR spectra. With their high sensitivity to NIR wavelengths and their...PHOTONICS BUYERS' GUIDE CATEGORIESInfrared InterferometersOptical CollimatorsOptical TestingOptical testing uses a variety of methods and tools to determine the surface contour and performance of optical components and systems.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...COMPANIESPhotonics 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' 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' 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' GuideRadiant Vision Systems, Test & MeasurementRadiant Vision Systems engineers advanced imaging systems to evaluate light, color, manufacturing integrity, and surface quality of illuminated displays, backlit components, light sources,...