Research on a diamond turning method for large aspherical mirrors

Cheng-Shun Han; Long-Jiang Zhang; Yong Ren; Tao Sun

doi:10.1117/12.866843

13 October 2010 Research on a diamond turning method for large aspherical mirrors

Cheng-Shun Han, Long-Jiang Zhang, Yong Ren, Tao Sun

Proceedings Volume 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 76540D (2010) https://doi.org/10.1117/12.866843
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

Large size aspherical optic surfaces have gained significant importance and indispensability because of their desirable properties, and the fast growing demand needs urgently efficient and economical fabrication methods. A precision diamond turning machine with rotating tool feed and fast tool servo systems special for turning large asphercial mirrors is introduced, and a method to determine the best-fit sphere for this diamond turning method is also presented. A precise in-site measurement of the processing optical mirror is planned to construct on this machine tool in order to enhance the precision and efficiency, and reduce the production cost. The lateral shearing interferometer is known for being made small and having almost common-path beams that makes insensitive to mechanical vibrations and air turbulence, so it can be very suitable for measurement on the spot.

Citation Download Citation

Cheng-Shun Han, Long-Jiang Zhang, Yong Ren, and Tao Sun "Research on a diamond turning method for large aspherical mirrors", Proc. SPIE 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 76540D (13 October 2010); https://doi.org/10.1117/12.866843

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