Request InfoVEE GEE Scientific LLCVee Gee Scientific Inc. offers the DR-M series of Abbe refractometers from Atago. These instruments offer high-level refractive index analysis of optical glass, polymers, resins, coatings, film and other materials that require measurement at wavelengths other than 589 nm. They feature Abbe number and refractive index measurement at any wavelength between 450 and 1100 nm when using optical interference filters. The Abbe number measurement (vD and vE) is automatic and displayed on a digital readout at 0.1 resolution. Other features include a menu-driven LCD, primary and secondary prisms,...See full productRelated content from Photonics MediaPRODUCTSPhotonics Showcase July 2023 IssueDual-Band Infrared AR CoatingsInfrared imaging systems require simultaneous performance MWIR (midwave, typically 3 to 5 μm) and LWIR (longwave, typically 8 to 12 or 7.5 to 13.5 μm) spectral bands. 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