Request InfoKnight OpticalA new range of monochromatic light units from Knight Optical uses low-pressure sodium light sources to ensure a long operating life. The monochromatic light units are available in standard, enhanced and floor versions. The effective monochromatic wavelength is sodium 5896A, and λ2 is 0.3 microns. The devices are used for testing fringe patterns on the surface of optical flats.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra July 2023 IssueOptical Inspection SystemThe Mek iSpector in-line automatic optical inspection system from Marantz Electronics Ltd. is an entry-level system designed to cater to customers with low-volume and high-mix production. The...BioPhotonics Mar/Apr 2024 IssueMulti-LED for WearablesThe SFH 7018 is a red/green/IR LED package from ams OSRAM that can make photoplethysmography (PPG) measurements in smart watches, wristbands, and other wearable devices. 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