Alignment and Testing for a Freeform Telescope

Howe, Andrew ; Hovis, Clark ; Khreishi, Manal ; Ohl, Raymond

关键词: TELESCOPES;    MIRRORS;    METROLOGY;    COLLIMATION;    ALIGNMENT;    INTERFEROMETRY;    APERTURES;    CUBESATS;   

RP-ID  :  GSFC-E-DAA-TN62021

学科分类：原子、分子光学和等离子物理

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Currently there is a strong desire to make Earth science less expensive. Freeform optics make these missions less expensive because they allow an optical designer to use fewer mirrors to create roughly the same effect. The main issue with using freeforms is how closely the substrate can be milled to its prescription. Over this summer, our team looked at two freeforms made by Corning Inc.using a brand new process to determine how close these optics are to their set prescriptions and how well NASA could align them.