光学元件标识升级公告
低群延迟色散介质膜，采用离子束溅射（IBS）工艺
波长范围从460 nm-1700 nm
更低的热膨胀系数和极高的热震动稳定
超快增强型银膜，低群延迟色散
光学材质：紫外熔融石英
工作波长：750 nm-1000 nm
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