Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/43938
Title: Large-scale fabrication of micro-lens array by novel end-fly-cutting-servo diamond machining
Authors: Zhu, Z
To, S 
Zhang, S
Issue Date: 2015
Publisher: Optical Society of America
Source: Optics express, 2015, v. 23, no. 16, p. 20593-20604 How to cite?
Journal: Optics express 
Abstract: Fast/slow tool servo (FTS/STS) diamond turning is a very promising technique for the generation of micro-lens array (MLA). However, it is still a challenge to process MLA in large scale due to certain inherent limitations of this technique. In the present study, a novel ultraprecision diamond cutting method, as the end-fly-cutting-servo (EFCS) system, is adopted and investigated for large-scale generation of MLA. After a detailed discussion of the characteristic advantages for processing MLA, the optimal toolpath generation strategy for the EFCS is developed with consideration of the geometry and installation pose of the diamond tool. A typical aspheric MLA over a large area is experimentally fabricated, and the resulting form accuracy, surface micro-topography and machining efficiency are critically investigated. The result indicates that the MLA with homogeneous quality over the whole area is obtained. Besides, high machining efficiency, extremely small volume of control points for the toolpath, and optimal usage of system dynamics of the machine tool during the whole cutting can be simultaneously achieved.
URI: http://hdl.handle.net/10397/43938
EISSN: 1094-4087
DOI: 10.1364/OE.23.020593
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