The Application of Pentaprism Scanning Technology on the Manufacturing of M3MP
- Others:
- Cho, Myung Kyu
- Fan, Bin
Abstract
The PSS (pentaprism scanning system) has advantages of simple structure, needless of reference flat, be able of on-site testing, etc, it plays an important role in large flat reflective mirror's manufacturing, especially the high accuracy testing of low order aberrations. The PSS system measures directly the slope information of the tested flat surface. Aimed at the unique requirement of M3MP, which is the prototype mirror of the tertiary mirror in TMT (Thirty Meter Telescope) project, this paper analyzed the slope distribution of low order aberrations, power and astigmatism, which is very important in the manufacturing process of M3MP. Then the sample route lines of PSS are reorganized and new data process algorism is implemented. All this work is done to improve PSS's measure sensitivity of power and astigmatism, for guiding the manufacturing process of M3MP.
Additional Information
© 2016 SPIE. Society of Photo-Optical Instrumentation Engineers. We gratefully thank Virginia Ford, Glen Cole for their helpful advices about the manufacturing of M3MP. This work is financially supported by Natural Science Foundation of China No.61210015 and Chinese National 973 program No.2011CB013205.Attached Files
Published - 96821A.pdf
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Additional details
- Eprint ID
- 72670
- Resolver ID
- CaltechAUTHORS:20161208-141113765
- 61210015
- National Natural Science Foundation of China
- 2011CB013205
- Chinese National 973 program
- Created
-
2016-12-09Created from EPrint's datestamp field
- Updated
-
2021-11-11Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 9682