VY Optics Photoelectric Technology Co.,Ltd. offers all types of windows made from different materials. Special size and materials are also available upon request. In addition, we provide a variety of single layer or multiplayer anti-reflecting coating on optical windows. Specification of our optical windows as follow: *Material: BK7 or other materials *Length tolerance:+/-0.01 *Width tolerance:+/-0.01 *Center thickness tolerance:0.005mm *Surface quality:80-50 to 10-5 Scratch/Dig *Surface flatness:<lambda to lambda/20 *Parallelism<=1min -- 2sec *Clear Apenture:80% -- 100%
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