Browse > Article

Development of a Small Radiant Sequential Production System for Aspheric Lens  

Kuk, Kum-Hoan (Department of Control and Instrumentation Engineering, Gyeong-sang National Univ.)
Jeong, Jun-Hyo (Department of Control and Instrumentation Engineering, Gyeong-sang National Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.27, no.12, 2010 , pp. 67-74 More about this Journal
Abstract
The fabrication method of aspheric lens is changed from machining to press molding so as to improve the productivity. In the case of the press molding method, the temperature control of the molding die is most impotent, because the temperature of each molding die determines the quality of lens. But any practical method for direct measuring of the lens temperature and the die internal temperature is yet unknown. Besides, in the case of the press molding system in which the heating and pressing and cooing of a die is done at one work station, the cycle time for the system is yet too long. The paper shows an improved structure of radiant sequential system in which the heating and pressing and cooing of dies is done at individual work station so as to cut down the cycle time. To know the die internal temperature, numerical results are given using ANSYS. An experimental radiant sequential system is developed and tested. Finally, the Taguchi method is applied in order to optimize the setting conditions of individual work station.
Keywords
Aspheric Lens; Press Molding; Sequential Production; Radiant Method; Convective Method;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Kim, S. H., Beak, K. Y., Kim, Y. N. and Yang, I. Y., "Defect Evaluation of Optical Lens by Resonent Ultrasound Spectroscopy," Proceedings of the Korean Society for Precision Engineering Autumn Conference, pp. 1491-1495, 2004.
2 Yoshizo, K., "The Present Condition of Glass-Molding Press Machine," New Glass, Vol. 13, No. 2, pp. 38-42, 1998.
3 Kuk, K. H., Kim, K. S. and Chong, D. Y., "Development of a Small Radiant Production System for Aspheric Lens," Proceedings of the Korean Society for Precision Engineering Spring Conference, pp. 293-294, 2009.
4 Takaki, K., Yonemoto, T., Inoue, T. and Nakamura, S., "A Method for Forming an Optical Element and an Apparatus for Manufacturing the Same," Panasonic Co., Ltd., No. 10-0207170
5 Tanioka, T., Masaki, H., Urusibata, K., Komiyama, Y., Kanamo, T. and Maszki, I., "Method and Apparatus for Press Forming Glass Products," Toshiba Machine Co., Ltd., No. 10-0193374
6 Chong, D. Y. and Kuk, K. H., "Development of Robot System for Production of Glass Lens by Ultra-precise Control of Force and Temperature," Ministry of Knowledge Economy, pp. 6-9, 2009.
7 Makoto, U., "Manufacturing of Optical Glass Lens by Press-Molding Method," New Glass, Vol. 13, No. 2, pp. 32-37, 1998.
8 Kim, S. S., Lee, Y. C., Lee, D. G., Kim, H. J. and Kim, J. H., "Ultra-precision Grinding Optimization of Mold Core for Aspheric Glass Lenses using DOE and Compensation Machining," Journal of the Korean Society for Precision Engineering, Vol. 24, No. 6, pp. 45-50, 2007.   과학기술학회마을
9 Park, K. and Han, C. Y., "Numerical Analysis for the Injection Molding of an Aspheric Lens for a Photo Pick-up Device," Journal of the Korean Society for Precision Engineering, Vol. 21, No. 11, pp. 163-170, 2004.   과학기술학회마을