Fabrication of large off-axis asymmetry aspherics using stressed lap with orbital tool motion

Xiao Luo; Ligong Zheng; Xuejun Zhang

doi:10.1117/12.866652

13 October 2010 Fabrication of large off-axis asymmetry aspherics using stressed lap with orbital tool motion

Xiao Luo, Ligong Zheng, Xuejun Zhang

Proceedings Volume 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 765408 (2010) https://doi.org/10.1117/12.866652
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

The stressed-lap technique has been proven to be an effective method to meet the challenge of polishing large mirrors with highly aspheric figures. It has the advantage of high material removal and strong natural smoothing tendency over a wide range of spatial frequencies, only round mirrors could be processed with this technology. A solution is put forward in this paper by applying the CCOS (Computer controlled optical surfacing) removing strategy into the stressed lap technology, employing the stressed lap as the removing tool but moving the lap in the CCOS fashion, naming the stressed lap with orbital motion. With the new technology, almost any shape of mirror could be processed, the figuring ability could be improved and the changing rate of the force imposed on the lap turn out to be only 1/6 of the stressed lap with spinning motion based on simulation results, which conducing a lower response requirement of the lap with orbital motion.

Citation Download Citation

Xiao Luo, Ligong Zheng, and Xuejun Zhang "Fabrication of large off-axis asymmetry aspherics using stressed lap with orbital tool motion", Proc. SPIE 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 765408 (13 October 2010); https://doi.org/10.1117/12.866652

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available