Request InfoIDEX Health & ScienceThe Melles Griot Optics Group has unveiled additional Fizeau interferometer test optics to complement its line of Absolute Fizeau λ/40 transmission spheres. The Fizeau λ/50 concave and convex reference spheres enable users to record and store reference wavefronts for subtraction from interferometric test data, resulting in improved accuracy of their interferometer systems. The Fizeau λ/50 transmission flats increase the accuracy of Zygo-style Fizeau surface and wavefront-testing interferometers to λ/50 without the need to store, manipulate or subtract reference wavefronts...See full productRelated content from Photonics MediaPRODUCTSBioPhotonics Nov/Dec 2023 IssueLarge Format OpenStandThe H275LMT from Prior Scientific is an extended travel motorized focus tower compatible with a variety of optical components, providing users with up to 150 mm of motorized focus travel. 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