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Evaluation on the Optimum Grinding of Aspheric Surface Micro Lens for Camera Phone  

Baek Seung-Yub (인하대학교 기계공학과 대학원)
Lee Eun-Sang (인하대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.15, no.2, 2006 , pp. 1-9 More about this Journal
Abstract
As consumers in optics, electronics, aerospace and electronics industry grow, the demand for ultra-precision aspheric surface lens increases higher. To enhance the precision and productivity of ultra precision aspheric surface micro lens, the development of ultra-precision grinding system and process for the aspheric surface micro lens are described. In the work reported in this paper, an ultra-precision grinding system for manufacturing the aspheric surface micro lens was developed by considering the factors affecting the ground surface roughness and profile accuracy. This paper deals with mirror grinding of an aspheric surface micro lens by resin bonded diamond wheel and spherical lens of BK7. The optimization of grinding conditions on ground surface roughness and profiles accuracy is investigated using the design of experiments.
Keywords
Aspheric surface; Ultra-precision grinding system; Profile accuracy; Design of experiments; Ground surface roughness; Profile error;
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1 Suzuki, H., Kodera, S., Maekawa, S., Morita, N., Sakura, E., Tanaka, T., Takeda, H., Kuriya gawa, T. and Shoji, k., 1998, 'Study on Precision Grinding of Micro Aspherical Surface,' JSPE, Vol. 64, No. 4, pp. 619-623
2 Baek, S. Y., Lee, E. S. and Lee, H. D., 2005, 'A Study on the Characteristic of Ultraprecision Grinding Machining Considering Ultra-fine Surface and 3D Contour Accuracy of Aspherical Surface Micro Lens,' Proc of 5th EUSPEN International Conference, Vol. 1, pp. 33-36
3 Hyun, D. H. and Lee, S. J., 2003, 'A Study on Grinding Characteristics of Aspherical Glass Lens Core of High-pixel Digital Camera in Diamond Grinding Process,' Transactions of the Korean Society of Machine Tool Engineers, Vol. 12, No. 2, pp. 31-36
4 Yang, M. Y. and Lee, T. M., 1997, 'New Biarc Interpolation for Ultra-precision Aspheric Surface Machining,' Proc. ASPE Annual Meeting, pp. 195-198
5 Foreman, J. W. and Jr., 1986, 'Simple Numerical Measure of the Manufacturability of Aspheric Optical Surfaces,' Applied Optics, Vol. 25, pp. 826-827   DOI
6 Doughty, G. and Smith, J., 1987, 'Microcomputercontrolled polishing machine for very smooth and deep aspherical surfaces,' Applied Optics, Vol. 26, No. 26, pp. 2421-2426   DOI
7 Arnold, J. B., Sterger, P. J. and Saito, T. T., 1975, 'Tool Feed Influence on the Machinability of $CO_2$ Laser Optics,' Applied Optics, Vol. 25, pp. 1777-1782
8 Shida, H., 1998, 'Development of Machining Technology on High Precision Plastic Opto-Element,' Rich Technical Rept, No. 24, pp. 99-105