半球透镜的工作原理主要是由于其曲率和对称性。当光线通过凸面时，它会经历折射过程，即光从一种介质过渡到另一种介质时会发生弯曲。这种光线的弯曲使得半球透镜在从聚焦光到在特定区域发散或汇聚光的应用中变得非常有用。这种多功能性使得半球透镜在各种行业中都非常有价值.
| 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 |
| Clear Aperture | >90% |
| Coating | AR/AR, customized available |
