尺寸 Dimension (mm)

12.7

尺寸公差 Dimension Tolerance (mm)

+0.0/-0.1

通光孔径 Clear Aperture

≥90%

有效焦距 EFL(mm)

12

焦距公差 EFL Tolerance

±1%

中心厚度 CT (mm)

3

中心厚度公差 CT Tolerance (mm)

±0.2

边缘厚度 ET (mm)

3.8

半径R1 Radius R1 (mm)

-24

材料 Material

H-K9L

偏心 Centration Error

≤3′

面型 Surface Flatness

λ/4@633nm

表面质量 Surface Quality

40/20, Commercially Polished (Rear Surface)

倒角 Bevel

0.3×45°

镀膜 Coating

Protected Aluminum