Request InfoQED Technologies Inc.QED Technologies Inc. has released the SSI-A, a metrology tool for aspheres. It makes full-aperture interferometric measurements without the need for dedicated null lenses by taking several subapertures over the entire work surface and stitching the results together into a lattice to synthesize a full-aperture map. It automatically selects an appropriate transmission sphere; defines the lattice; measures wedge, centration and radius; moves the workpiece and nulls the interference fringes; and automatically sets the pixel scale setting, without lateral calibration. It measures almost any...See full productRelated content from Photonics MediaPRODUCTSPromoted Content January 2024 IssuePrecision Optics + AssembliesSince 1947, three generations of family leadership have guided LaCroix Precision Optics to become the premier precision optics manufacturer in America. Our relationship-driven approach to delivering...Promoted Content March 2023 IssueCustom Precision OpticsSince 1947, three generations of family leadership have positioned LaCroix Precision Optics as the premier manufacturer of precision optics in America. Our relationship-driven approach to delivering...Photonics.com 3/27/2023Electron Beam Metrology SystemApplied Materials’ VeritySEM® 10 CD-SEM metrology system is designed to precisely measure the critical dimensions of semiconductor device features patterned with EUV and emerging High-NA...Photonics Spectra September 2023 IssueCompact Optical Alignment SystemTRIOPTICS’ OptiCentric® Compact is designed for manual centration testing and lens alignment. Featuring IOS 5 cleanroom capability the system is well-suited for cementing lenses or bonding...ARTICLESPhotonics Spectra July 2023 IssueHolography Lends a Whole New Dimension to MetrologyAll optical imaging systems, from smartphone cameras to extreme-ultraviolet photolithography optics, are under increasing pressure to support higher resolution, broader spectral range, or higher...Photonics Spectra September 2022 IssueLarge Aspheres Manage High-Power Laser EnergyLaser system output power is constantly increasing. The maximum attainable peak power of laser pulses has increased by a factor of about 1000 every 10 years1. This pace of progress is similar to the...Photonics Spectra December 2022 IssueMicrolens Array Fabrication Method Reduces Device CostsThough aspheric microlens arrays (AMLAs) play an important role in advanced optical sensing, communications, imaging, and other industrial and biomedical applications, the fabrication of the elements...Photonics.com 1/24/2024LaCroix Precision Optics Adds Assembly, Design DepartmentsLaCroix Precision Optics has added optical assembly and design departments in a move that the company said solidifies its status as a vertically integrated optics firm. According to LaCroix president...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 HandbookAspheric Lenses: Design ConsiderationsAspheric surfaces are powerful tools that combine the optical corrections of multiple lenses into a single element (Figure 1) and affect performance in ways that spherical optics cannot. For example,...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 HandbookPositioning System Performance: Understanding the RulesAbbe Error — Linear off-axis errors introduced by angular deviations coupled to a moment arm at the point of interest on stage mounted devices (θ in Figure 1). The effect of Abbe error...WHITEPAPERSPhotonics.com 1/10/2024Spectral, Spatial and Temporal Optimization of Solid-State Light Engine OutputSpecifications for illumination systems for biomedical imaging and industrial metrology generally converge on spectral, spatial and temporal light output characteristics. This article describes some...Photonics.com 11/6/2023Fast Shaping Control of X-Ray Beams Using a Closed-Loop Adaptive Bimorph Deformable MirrorHigh-speed adaptive correction of optics, based on real-time metrology feedback, has benefitted numerous scientific communities for several decades. However, it remains a major technological...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 1/10/2024Laser Light Engine Output StabilityIn this white paper, Dr. Iain Johnson, Lumencor’s Director of Technical Support, tests Lumencor’s laser-based CELESTA Light Engine for consistency, power, and stability using continuous wave...WEBINARSPhotonics.com 1/18/2023Key Considerations for Part and Sample Holding in Interferometric CharacterizationInterferometry is a powerful tool when used to characterize optical surface form errors, as well as accumulated errors, when measuring transmitted wavefronts. Opticians and engineers have many...Photonics.com 8/28/2019High-End Asphere Design for ManufacturabilityIn this webinar, Edmund Optics’ asphere experts will discuss the benefits of using aspheres in optical system design and the factors to take into account during the design process. You will...Photonics.com 4/29/2020Innovation Along the Value Chain: Creating Optics for Metrology ApplicationsToday, process innovation is as important as product innovation to the creation of a competitive product. The entire value chain, from the definition of the specifications based on the needs of the...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 DICTIONARY+ TERMSPhotonics Dictionaryfreeform opticsFreeform optics refers to the design and fabrication of optical surfaces that do not follow traditional symmetric shapes, such as spheres or aspheres. Unlike standard optical components with...Photonics Dictionaryhelium-neon laserA helium-neon (HeNe) laser is a type of gas laser that emits visible red light at a wavelength of 632.8 nm. It operates based on the principle of stimulated emission of photons from excited helium...Photonics Dictionarymagnetorheological finishingMagnetorheological finishing (MRF) is a precision optics polishing technique used for shaping and finishing optical surfaces to achieve extremely high levels of smoothness and accuracy. It is...Photonics Dictionaryfrequency combA frequency comb is a precise and regular series of equally spaced spectral lines, or frequencies, that are generated with great accuracy. The term "frequency comb" is often associated with the Nobel...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 9/6/2022LaCroix Precision Optics - Company OverviewLaCroix Precision Optics is a customer-driven, world-class manufacturer of custom precision optics. Our core competencies include spherical lenses, aspheres, achromats, windows, wedges, prisms, and...Photonics.com 3/4/2024Specifying Optical Coatings - LaCroix Precision OpticsOptical coatings modify the reflectance, transmittance, and absorptive properties of optic substrates to make them much more efficient and functional. From an optical manufacturer's perspective,...Photonics.com 3/4/2024Designing for Manufacturability with Fluorides and Other High Expansion Materials - LaCroix Precision OpticsAs the demand for fluorides and other high expansion materials increases, it is important to understand the risks/challenges involved with these materials and how they affect various factors such as...PHOTONICS BUYERS' GUIDE CATEGORIESAspheric LensesAn aspheric lens is a type of lens whose surface profiles deviate from the traditional spherical shape. Unlike spherical lenses, which have a constant curvature across their surfaces, aspheric lenses...Diamond-Turned OpticsDiamond-turned optics refer to optical components fabricated through the diamond turning process. In this process, a cutting tool with a diamond tip is used to precisely shape the material into the...Freeform OpticsFreeform optics refers to the design and fabrication of optical surfaces that do not follow traditional symmetric shapes, such as spheres or aspheres. Unlike standard optical components with...TransmissometersCOMPANIESPhotonics 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' GuideOptimax Systems Inc.Optimax is America’s largest optics manufacturer. On the cutting edge of future applications, Optimax implements an engineered solutions approach to help our customers achieve breakthroughs in...Photonics Buyers' GuideFresnel Technologies Inc.Fresnel Technologies Inc. is an expert manufacturer of molded plastic optics, including Fresnel lenses and related optical components, as well as infrared transmitting materials and optics made from...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,...