DIN ISO 9345-2-2005 光学和光学仪器.显微镜.相对机械参考面的象距.第2部分:完全修正光学系统
Optics and optical instruments - Microscopes - Imaging distances related to mechanical reference planes - Part 2: Infinity-corrected optical systems (ISO 9345-2:2003)
Specification of the imaging distances of objectives," eyepieces and the focal length of ""normal"" tube lenses of microscopes with infinity-corrected optical systems.#",,#