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 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 1/19/2021Lidar: Trends in Remote Detection and Measurement in Aerospace and DefenseActive optical technologies such as lidar have been scientifically evaluated in a broad range of fields. Nikolaus Schmitt provides a short overview of key application fields and lidar technologies...Photonics.com 7/20/2021Next-Generation Lasers and Detectors for Lidar and Range FindersJens Krause and Anand Pandy provide information on a broad range of emitters and detectors for your lidar designs. From laser levels and surveying equipment to advanced robotics, range finders, and...Photonics.com 1/11/2023Expanding Options for the Design and Manufacture of Aspheres and Freeform OpticsThe 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 DictionaryDall-Kirkham telescopeA telescope similar to the customary Cassegrain telescope, but having a primary mirror that is ellipsoidal and a secondary that is spherical.Photonics Dictionarystick machineA polishing machine with a lens mounted on a wooden stick, allowing a very wide sweep. It is used to polish hemispherical or hyper-hemispherical surfaces.Photonics Dictionaryastronomical mirrorAn astronomical mirror, also known as a telescope mirror or primary mirror, is a key component of a reflecting telescope. It serves as the primary optical element responsible for gathering and...Photonics Dictionaryballoon-borne astronomical systemAny instrument or system carried by a balloon to the upper atmosphere to measure and record atmospheric information, such as radiation observations, while reducing atmospheric interference.PHOTONICS BUYERS' GUIDE CATEGORIESMicrospheresWavefront SensorsLidar SystemsBall LensesCOMPANIESPhotonics 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...