非球面透镜它们可以更精确地控制光线在透镜内的传播路径,有时一个非球面透镜就可以替代原本需要多个标准透镜元素才能实现的效果。结果是,这样的透镜更轻便、更紧凑。
Material | optical glass,N-BK7 , Fused Silica, sapphire,Si,Ge,CaF2,LiF,BaF2,ZnS,ZnSe,Znse,ZnS |
Dimensions | 3-400mm |
Dimension Tolerance | ±0.01mm |
Thickness Tolerance | ±0.01mm |
Center thickness | >1mm |
Focal Length tol. | ±1% |
Centration | 3 arc minutes |
Surface Quality | 80/50 60/40 40/20 20/10 10/5 |
Clear Aperture | >90% |
Coating | AR/AR, customized available |