可變密度濾光片
尺寸:............................................................φ50 x 2mm (ID:φ7.5)
公差: 外徑公差:...........................................................+0/-0.25mm
內孔公差: ..........................................................+0.25/-0mm
厚度公差: .............................................................±0.25mm
鍍膜區域角度誤差: .................................................................±1º
設計波長: .................................................................380-1200nm
鍍膜: ...........................................................................ND (正面)
面形: .....................................................................λ/[email protected]
光潔度: .............................................................................60-40
平行度: .......................................................................<3 arc min
光強誤差:..................................................................±5% (兩極處)
線性誤差: ............................................................................±5%
倒角: ........................................................................0.2 x 0.2mm
漸變方向: ..........................................................................逆時針
