光学球罩可以由多种材料制成,包括用于可见光和红外光的锌硒、锌硫或锗。对于仅需要传输可见光的情况,如相机传感器或气象学应用,BK7或熔融石英是不错的选择。BK7具有良好的化学耐久性,并为300纳米到2微米的波长范围提供出色的透射率。对于紫外光范围,可以使用紫外级熔融石英。这些熔融石英穹顶能够承受高压,非常适合水下应用。
Material | optical glass,BK7 ,Fused silica, Ge,Si,CaF2, ZnSe,ZnS,MgF2,sapphire |
Diameter | 0.3-500mm |
Height | 0.1-50mm |
Diameter Tolerance | ±0.01 mm |
Thickness Tolerance | ±0.01mm |
Surface Quality | 60/40,40/20,20/10 |
Clear Aperture | >90% |
Coating | Custom,AR coating,BBAR coating, AF/AS coating,Hydrophobic Coating(as per your request) |
Bevel | 0.1~0.3mm x 45 degree |