球面透镜

材质

BK7, K9, 熔融石英, SF10, 硅, 氟化钙, 蓝宝石等

标准直径 (Φmm)

10.0, 12.7, 15.0, 20.0, 25.4, 30.0,   50.8, etc.

直径公差 (mm)

+0.0/-0.02 (General), +0.0/-0.02 (High   Precision)

近轴焦距公差 (mm)

±2%

光轴性

<3 arc min

通光孔径

>80% (Small Size), >95% (Large   Size)

面型 (per 25mm@632.8nm)

<1.5λ, (General), <λ/4 (High Precision)

IRR (@632.8nm)

<λ/4 (General), <λ/10 (High Precision)

表面质量

60/40 (General), 10/5(High Precision)

倒角 (face width ×   45°)

<0.25mm

镀膜

uncoated, AR,HR, PR Coating, etc.