Request Info4D Technology CorporationEnabling the measurement of 300-mm-diameter optics, a system from 4D Technology has been designed around a standard, 100-mm aperture AccuFiz interferometer for large afocal optics and large-diameter curved surfaces. The suite of 300-mm components includes a compact 100- to 300-mm beam expander that can be used in a horizontal or look-down measurement configuration. Kinematic mounting and a visible coarse alignment laser quickly positions the reference and test optics for rapid test setup. 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Usually...Far-Infrared LasersA far-infrared laser is a laser with output over a wide range of wavelengths spanning the far-infrared region of the spectrum (30 to 1000 µm); typically, it consists of a metal or dielectric...Long-Wavelength Injection LasersCOMPANIESPhotonics Buyers' Guide4D Technology Corporation4D Technology designs and manufactures laser interferometers, surface roughness profilers, snapshot micropolarizer cameras, and handheld surface gauges, for accurate measurement of optics, optical...Photonics 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' GuideExcelitas Technologies Corp.Excelitas Technologies® Corp. is a leading industrial technology manufacturer focused on delivering innovative, market-driven photonic solutions to meet the illumination, optical, optronic,...