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Proceedings Paper

Mechanical design of the stressed-lap polishing tool
Author(s): Lei Wang; Yong-tian Zhu; Qing-feng Zhang
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Paper Abstract

We present an overview of the engineering design of stressed lap developed at Nanjing Institute of Astronomical Optics and Technology. Stressed lap consists of two parts: active deformable lap, driving-adjusting mechanism. The finite element model for active deformable lap is constructed, and the performance of lap deforming is discussed. Descriptions about mechanical structure of driving-adjusting mechanism are given. Now, stressed-lap polishing tool has been used to accomplish a fast parabolic mirror in Nanjing. The φ910mm F/2 parabolic mirror has been figured to an accuracy of 22 nm.

Paper Details

Date Published: 9 December 2005
PDF: 7 pages
Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 60241Y (9 December 2005); doi: 10.1117/12.666942
Show Author Affiliations
Lei Wang, Nanjing Institute of Astronomical Optics and Technology/National Astronomical Observatories (China)
Yong-tian Zhu, Nanjing Institute of Astronomical Optics and Technology/National Astronomical Observatories (China)
Qing-feng Zhang, Nanjing Institute of Astronomical Optics and Technology/National Astronomical Observatories (China)


Published in SPIE Proceedings Vol. 6024:
ICO20: Optical Devices and Instruments
James C. Wyant; X. J. Zhang, Editor(s)

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