A two-sphere system with a two-lens zero-power corrector placed behind the secondary mirror was discussed.

讨论了双贴合无光焦度校正板放在次镜后的双反射球面系统。

youdao

A two-sphere system with a two-lens zero-power corrector placed behind the secondary mirror was discussed.

讨论了双贴合无光焦度校正板放在次镜后的双反射球面系统。

youdao