Request InfoOptical Surfaces Ltd.Optical Surfaces Ltd. can design and supply aspheric lenses up to 600 mm in diameter and up to f/2.5, and with diffraction-limited performance of better than λ/4. The company says it can manufacture lenses with ultrasmooth slope errors, surface finish of 20/10 scratch/dig and typical surface micro-roughness of 1 nm rms. High-power laser coatings are available to maintain high transmission and to allow the lenses to be used with terawatt lasers that investigate fundamental plasma physics.See full productRelated content from Photonics MediaPRODUCTSPhotonics Showcase January 2023 IssueContinuously Variable FiltersContinuously Variable Filters (CVFs) — also known as Linear Variable Filters — from Delta Optical Thin Film offer unprecedented tunability over a large wavelength range, steep filter...Promoted Content August 2023 IssueMulti-Bandpass Optical FiltersThe commercial availability of Light-Emitting Diodes at almost any wavelength combined with Multi-Bandpass Filters have enabled a completely new type of instrumentation. These instruments allow...Promoted Content October 2022 IssueIR FiltersDSI designs and manufactures thin film coatings such as bandpasses, beamsplitters, ARs, and absorption coatings for use in the MWIR thru LWIR wavelength regions. 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