硅透镜在从近红外到长波红外的广泛光谱范围内表现出色。它们具有相对较高的折射率，能够精确控制通过硅透镜的光线的路径，并确保准确聚焦和准直光线。硅的色散率低，能够以相似的角度折射不同波长的光，从而最小化色差。硅的吸收率低，确保硅透镜吸收很少的光线，从而实现高透射效率和最小的能量损失。硅透镜可以高度抛光，以减少表面不规则性对光线的偏转，从而提高光学清晰度
| Material | optical glass,N-BK7 , Fused Silica, sapphire,Si,Ge,CaF2,LiF,BaF2,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% |
| Bevel | Protective bevel as needed |
| Coating | as per your request |
