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Plane and Parallel Window(BK7A, Fused silica, CaF2)  

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Plane and Parallel Window(BK7A, Fused silica, CaF2)

·General purpose plane windows ·Flat polished surfaces ·Apply any anti-reflecting coating These general purpose plane windows are polished to λ / 10 flatness except where indicated otherwise. They are intended for transmissive use and are parallel to better than 10 arc seconds. Select a coating appropriate to your application or contact us with your special coating requirements. Part No.                   Diameter                     Thickness                           Material                                 Flatness                     ·PW-1206B/U              ·12.7mm      &nb…