Request InfoAltechnaAltechna has released a line of elliptical flat mirrors ranging in size from 12.7 to 50.8 mm whose apertures become circular when the mirror is rotated 45° around the minor axis. The mirrors are available in four types of metallic coatings: aluminum, which provide reflection in the UV, visible and mid-IR wavelength ranges; protected silver, which provide the highest reflectivity in the visible range; protected gold, which are efficient in the IR range; and dielectric coated, which provide high reflectivity.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra February 2022 IssueAthermalized Beam CollimatorOptical Surfaces Ltd. has announced an athermalized beam collimator design to deliver stable, high performance across a wide temperature range. 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This webinar,...PHOTONICS DICTIONARY+ TERMSEDU.photonics.com 3/5/2018paraboloidal mirrorA concave mirror that has the form of a paraboloid of revolution. The paraboloidal mirror may have only a portion of a paraboloidal surface through which the axis does not pass, and is known as an...EDU.photonics.com 3/5/2018Geometrical opticsThe area of optics in which the propagation of light is described by geometrical lines (or rays) governed by Fermat's Principle. Geometrical optics is useful as long as the objects in which the light...EDU.photonics.com 9/8/2009divergence1. In optics, the bending of rays away from each other. 2. In lasers, the spreading of a laser beam with increased distance from the exit aperture. Also called beam spread. 3. In a binocular...EDU.photonics.com 9/8/2009convergence1. In optics, the bending of light rays toward each other, as by a convex or positive lens. 2. Turning in the eyes to view a near object. 3. In a television picture tube, the crossing of the...VIDEOSPhotonics.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.com 9/30/2019About AlluxaGet a tour of our factory and the inside scoop on everything Alluxa has to offer.Photonics.com 6/19/2018Tech Transfer Programs Bridge Gap Between Industry and ResearchTechnology Transfer Programs are often a concerted effort to share skills, knowledge, technologies, methods of manufacturing, samples of manufacturing, and facilities among governments or...Photonics.com 11/17/2017Binding Light in Optics and Photonics - LIGHT MATTERS 11.2017Tune into this month's edition of Light Matters for 'Part 1' of an exclusive interview with SPIE CEO, Eugene Arthurs, as he speaks about his upcoming retirement. We’ll also take you to Rochester,...PHOTONICS BUYERS' GUIDE CATEGORIESGold CoatingsMetallic CoatingsA metallic coating is a thin layer of metals deposited on the surface of a substrate. The film may serve as a reflector, beamsplitter, neutral density filter or electromagnetic interference filter.Silver CoatingsStatic Control Products and MaterialsCOMPANIESPhotonics Buyers' GuideLaCroix Precision OpticsOptics that Defend, Build, Cure and Discover The LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have placed LaCroix Precision Optics...Photonics Buyers' GuideOPCO Laboratory Inc.We, at OPCO Laboratory, are an extension of your team. With over 40 years of optical design and manufacturing experience, we provide total solutions from prototypes through production. Being...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' GuideMLD Technologies LLCExperts In Thin-film Coating Design We practice a design-before-quote approach to help customers refine specifications and minimize technical risk. We understand how coated optical elements...