Paper Title:
An Investigation of Form Errors Predicted Model for Injection Moulded Aspheric VCD Lens
  Abstract

The aspheric VCD lens is hard to fabricate by injection moulding due to its small volume and high precision requirement. The processing conditions have critical effects on the quality of the moulded lenses. An optic lens needs precisely controlled surface contours, so determination of the processing conditions for lens moulding becomes very complicated. This study’s purpose is to investigate experimentally some effects of the moulding conditions on the form errors of injection moulded lens. An aspheric VCD lens was moulded using polymethyl methacrylate. Different combinations of moulding conditions were used focusing on moulding process parameters of the ram speed, the mould temperature, the melt temperature and the packing pressure, The predicted model of form errors was formulated by orthogonal and regression analysis. Finally, the predicted model is proven to be valid based on the residual diagnostic plots.

  Info
Periodical
Key Engineering Materials (Volumes 364-366)
Edited by
Guo Fan JIN, Wing Bun LEE, Chi Fai CHEUNG and Suet TO
Pages
123-127
DOI
10.4028/www.scientific.net/KEM.364-366.123
Citation
S. To, B. Y. Jiang, C. Weng, W. B. Lee, "An Investigation of Form Errors Predicted Model for Injection Moulded Aspheric VCD Lens", Key Engineering Materials, Vols. 364-366, pp. 123-127, 2008
Online since
December 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: L.J. Li, Fei Hu Zhang, S. Dong
Abstract:The roughness and profiles accuracy of aspheric surface are two key factors affecting the resolution and other characteristics of optical...
365
Authors: Shao Hui Yin, Ke Jun Zhu, Yu Fang Wang, Feng Jun Chen, Yu Wang
Abstract:Glass lens molding is an effective approach to produce precision micro aspheric glass lens at high efficiency. In this paper, a new two-step...
564
Authors: Hong Ying Wang, Xue Me Hu
Chapter 30: Automation, Mechatronics and Robotics
Abstract:From the machining errors and static dynamic error influence two aspects are discussed in this paper, the analysis of machining process on...
7649
Authors: S.M. Nasir, K.A. Ismail, Z. Shayfull
Chapter 1: Innovative Materials and Processing Technologies
Abstract:This study focuses on the analysis of plastic injection moulding process simulation using Autodesk Moldflow Insight (AMI) software in order...
12