Mechanical design of the stressed-lap polishing tool

Details Mechanical design of the stressed-lap polishing tool Mechanical design of the stressed-lap polishing tool

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.6024..471w&link_type=abstract

ICO20: Optical Devices and Instruments. Edited by Wyant, James C.; Zhang, X. J. Proceedings of the SPIE, Volume 6024, pp. 47

Physics

Optics

Scientific paper

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.

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