技术参数：参数标准等级精度等级材料UVgradeFusedSilicaUVgradeFusedSilica尺寸公差+0.0/-0.15+0.0/-0.1通光口径>90%>90%表面質量S/D=60/40S/D=20/10平行度<3minute<20seconds面形精度λ/2@633nmper25mmλ/10@633nmper25mm倒角0.25mmx45°0.25mmx45°AR镀膜按客户要求按客户要求)