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Proceedings Paper

Optimal tolerance allocation in the optical head of near-field recording system
Author(s): Jun-Hee Lee; Hyoung-Kil Yoon; Jaehwa Jeong; Dae-Gab Gweon; Wan-Doo Kim
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Paper Abstract

In this paper, error analysis and tolerance allocation methods for the optical head of NFR (Near Field Recording) system are presented. We fabricate the NFR system and test the reading & writing performance of the NFR system. The test results show that the performance is not good enough. In order to find the cause of the performance drop in the NFR system, assembly and manufacturing tolerances in the optical head of NFR system are simulated. The tolerances analysis result shows that it needs to allocate the tolerances of the optical head of NFR system. So we proposed optimal compound tolerance allocation method using WOW (worst on worst) method and Monte-Carlo method base on sensitive analysis of the optical system. We used two tolerance allocation methods to allocate the compound tolerance in the optical head of NFR system. The results show that WOW method is an over-design method and the Monte-Carlo method is the optimal method of tolerance allocation in optical system.

Paper Details

Date Published: 13 October 2006
PDF: 12 pages
Proc. SPIE 6368, Optoelectronic Devices: Physics, Fabrication, and Application III, 636811 (13 October 2006); doi: 10.1117/12.685709
Show Author Affiliations
Jun-Hee Lee, Korea Institute of Machinery and Materials (South Korea)
Hyoung-Kil Yoon, LG Electronics (South Korea)
Jaehwa Jeong, Korea Advanced Institute of Science and Technology (South Korea)
Dae-Gab Gweon, Korea Advanced Institute of Science and Technology (South Korea)
Wan-Doo Kim, Korea Institute of Machinery and Materials (South Korea)


Published in SPIE Proceedings Vol. 6368:
Optoelectronic Devices: Physics, Fabrication, and Application III
Joachim Piprek; Jian Jim Wang, Editor(s)

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