Request InfoTower Optical Corp.Tower Optical Corp. is offering optical flats made from BK7 or fused silica. They are used as a reference against which the flatness of an unknown surface can be determined and also as windows. The fused silica types are available in single- and double-sided versions and maintain a flatness of λ/10 or λ/20. Their diameters range from 25 to 200 mm with λ/10 flatness. The BK7 types offer flatness of λ/4 or better.See full productRelated content from Photonics MediaPRODUCTSPromoted Content November 2022 IssueSpecialty Fiber Fused Silica PreformsOptical fibers are among the hidden champions of our time. Be it as a communication fiber for the internet or as a power transmission fiber in industrial material processing or minimally invasive...Promoted Content April 2022 IssueF-Theta Optical Scan LensStereolithography is an additive manufacturing process that is particularly suitable for the production of especially filigree components due to its high precision. 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