Browse > Article
http://dx.doi.org/10.7736/KSPE.2016.33.11.893

Study on Ultra-Precision Grinding Processing for Aspheric Glass Array Lens WC Core  

Ko, Myeong Jin (Department Seonam Regional Division, Korea Institute of Industrial Technology)
Park, Soon Sub (Department Seonam Regional Division, Korea Institute of Industrial Technology)
Publication Information
Journal of the Korean Society for Precision Engineering / v.33, no.11, 2016 , pp. 893-898 More about this Journal
Abstract
Plastic array lens are cheap to manufacture; however, plastic is not resistant to high temperatures and moisture. Optical glass represents a better solution but is a more-expensive alternative. Glass array lens can be produced using lithography or precision-molding techniques. The lithography process is commonly used, for instance, in the semiconductor industry; however, the manufacturing costs are high, the processing time is quite long, and spherical aberration is a problem. To obtain high-order aspherical shapes, mold-core manufacturing is conducted through ultra-precision grinding machining. In this paper, a $4{\times}1$ mold core was manufactured using an ultra-precision machine with a jig for the injection molding of an aspherical array lens. The machined mold core was measured using the Form TalySurf PGI 2+ contact-stylus profilometer. The measurement data of the mold core are suitable for the design criterion of below 0.5 um.
Keywords
Aspheric glass array lens; Ultra-Precision grinding; WC core; Surface roughness; Form accuracy;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Park, S. S., Hwang, Y., Lee, K. Y., Kim, G. H., and Won, J. H., “Design and Development of Asymmetry Glass Array Lens,” J. Korean Soc. Precis. Eng., Vol. 25, No. 12, pp. 39-46, 2008.
2 Lee, S. K., Miyamoto, Y., Kuriyagawa, T., and Syoji, K., “Effect of Minimizing Hydrodynamic Pressure in Ultra-Precision Mirror Grinding,” International Journal of Machine Tools and Manufacture, Vol. 44, No. 10, pp. 1031-1036, 2004.   DOI
3 Severi, M. and Mottier, P., “Etching Selectivity Control during Resist Pattern Transfer into Silica for the Fabrication of microlenses with Reduced Spherical Aberration,” Optical Engineering, Vol. 38, No. 1, pp. 146-150, 1999.   DOI
4 Park, S. S., Lee, K. Y., Hwang, Y., and Kim, H. M., "Research on Ultra-Precision Grinding Method," Proc. of KSPE Autumn Conference, pp. 393-394, 2006.
5 Park, S. S. and Lee, H. J., “Research on Ultra-Precision Grinding Method,” J. Korean Soc. Precis. Eng., Vol. 23, No. 6, pp. 14-21, 2006.
6 Suzuki, H., Kodera, S., Maekawa, S., Morita, N., Sakuri, E., et al., "Study on Precision Grinding of Micro Aspherical Surface Feasibility Study of Micro Aspherical Surface by Inclined Rotational Grinding," Journal of Japan Society for Precision Engineering, Vol. 64, pp. 619-623, 1998.   DOI