Request InfoSumita Optical Glass Inc.A new optical glass, K-PSFn3, is available from Sumita Optical Glass Inc. in preforms such as gobs, balls and discs for precision molding and the production of aspheric lenses. The glass contains no lead and is chemically resistant. Suitable for molding at 420 to 600 °C, K-PSFn3 displays indices of refraction of nd = 1.83917 and ne = 1.84746, and Abbe numbers of VD = 23.9 and VE = 23.7.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra November 2023 IssueLEDiL Optics KitThe New Energy LEDiL Optics Kit (NELOK) from NewEnergy consists of a single LED mounted on a printed circuit board and attached to a heatsink along with 15 lenses, three each from five lens families....Photonics.com 4/5/2024Ruggedized LensesThe 1.4-in., 45-MP MPT-R Series and 1-in., 20-MP MPZ-R Series (shown) from Computar® are 45-MP and 20-MP ruggedized lenses for harsh environments. 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