Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2002.02a
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- Pages.76-83
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- 2002
A Study on the Manufacturing Technology of the Aspheric Lens using Injection Molding
사출금형을 이용한 비구면 렌즈의 제조기술에 관한 연구
- Published : 2002.02.01
Abstract
The injection molding of the plastic optics is basically same as the conventional molding except it requires very intricate control of all the molding processing parameters. In the plastic optics, the problem of injection molding is the shrinkage. The shrinkage must be removed and predicted. This shrinkage is becoming more important than any other problems in precision molding because it can affect the focal length of a lens or the total performance of the optical system. This study focused on avoiding the shrinkage that the mold design allows for the optics. In making mold, the surface accuracy(P-V) of the lower and lower mold are