Request InfoDIOPTIC GmbHDioptic GmbH has introduced the LRT (large radius test) system for interferometric characterization of spheric and toric mirror surfaces with radii of curvature up to several meters. Tuning of the spherical test wave generated by the system is accomplished by combining a diffractive Fizeau null lens and an achromat. The range of radii that can be tested is between 1 m and ∞, convex or concave. Travel distance of the achromat is 600 mm, and maximum test mirror diameter is 60 mm. A GUI drives the stepping motor moving the achromat, computes the radius of the mirror from the adjusted...See full productRelated content from Photonics MediaPRODUCTSPromoted Content March 2024 IssueOptimize Your Lens Production with TRIOPTICSCompliance with opto-geometric lens parameters and the precise centration and alignment of a lens are crucial for the image quality of the optical system. TRIOPTICS offers products and solutions to...WEBINARSPhotonics.com 10/26/2023Miniaturized Tunable Objective Lenses Enable Next-Level EndoscopyThe laparoscopy market will account for 16 billion USD by 2030 at a compound annual growth rate of about 9%. North America's share of the market will count for more than 30%. This growth has been...Photonics.com 9/20/2023Unlocking the Future of Low-SWaP Thermal Imaging: Design Challenges and PerformanceNissim Asida reviews recent breakthroughs in IR zoom lens development, addressing the demanding requirements for reduced size, weight, and power (SWaP) while enabling high-resolution vision and...Photonics.com 11/15/2023Novel Testing Methods for AR/MR Devices and Smart Glasses with Vision CorrectionRoughly 65 percent of people wear prescription lenses of some kind. This requires makers of AR/MR devices to consider the use of customizable optics that match each user’s unique prescription....Photonics.com 1/10/2023Nanostructured, Ultrabroadband Antireflective Coatings for Glass and PolymersThe idea of employing higher-order surfaces in optical systems to improve performance has been around for decades. Designing and fabricating aspheric lenses in larger quantities and at a quality...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionaryrectilinear systemAn optical system that is corrected for distortion and spherical aberration and therefore forms the image of a straight line as a straight line.Photonics Dictionaryshort wavelength infraredShort wavelength infrared (SWIR) refers to the portion of the infrared spectrum that encompasses wavelengths roughly between 1,000 and 3,000 nanometers (nm). In the electromagnetic spectrum, infrared...Photonics DictionaryspherometerAn instrument for measuring the radius of curvature of a spherical lens or mirror surface. It may consist of a ring resting on the surface, with a micrometer plunger in the middle of the ring to...Photonics DictionaryaspherizingThe modification of the spherical surfaces in an optical system to correct for spherical aberration.PHOTONICS BUYERS' GUIDE CATEGORIESOptical Testing SoftwarePolished Molds for Glass and PlasticWavefront SensorsAspheric 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...COMPANIESPhotonics 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' 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' GuideShanghai Optics Inc.ISO 9001 & ISO 13485 certified and D&B DUNS # 113515303 Shanghai Optics is an unparalleled custom system solution provider offering advance precision custom optical design, engineering,...Photonics Buyers' GuidePFG Precision OpticsAt PFG Precision Optics our first priority has always focused on advancing technical competence to provide superior optical products to our customers. We produce a broad offering of very high...