Tag Optics Inc.Computer-controlled varifocal lenses by Tag Optics Inc. offer Z-direction tunability and are available for several imaging modalities, including biological microscopy. The lenses utilize dynamic density gradients to create an aspheric lens with low aberration and near diffraction-limited performance with no moving parts. They can change focal length in submicroseconds, provide an increase in depth of field greater than 30× and are a simple add-on to any optical system.See full productRelated content from Photonics MediaPRODUCTSBioPhotonics Jan/Feb 2023 IssueZinc Selenide OpticsHigh-quality zinc selenide (ZnSe) lenses, output couplers, and mirrors from Laser Research Optics are optimized at 1.06 μm for medical laser OEMs. The devices are manufactured to...Photonics.com 9/8/2022Zoom Microscope LensThe BS-1085 4K Apochromatic Monocular Zoom Microscope Lens from BestScope International Ltd. features an adopted apochromatic optical system. 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We also offer other interference filters including UV filters, visible filters, and...PHOTONICS BUYERS' GUIDE CATEGORIESCCTV LensesDiffraction-Limited LensesDiffraction-limited lenses are lenses with aberrations corrected to the point that residual wavefront errors are substantially less than one-quarter the wavelength of the energy being acted upon.Large-Format LensesRelay LensesRelay lenses are lenses or lens system used to transfer a real image from one point within an optical system to another, with or without magnifying it.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' 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' GuideCASTECH INC.CASTECH is a recognized leading supplier of nonlinear optical crystals, laser crystals and precision optical components for laser, telecom, medical, analysis and detector markets. Products...