Paper Title:
Error Evaluation of Aspheric Surfaces and Calibration of the Test Instrument
  Abstract

As aspheric surfaces are more often used in optical systems, suitable error evaluation methods and suitable accuracy calibration methods for related test instruments are urgently required. The two unsolved but important issues are addressed. For evaluation of aspheric surfaces, a scheme is proposed to separate the surface errors into radius error and local error. The effects of the two errors on image quality are discussed. For test instrument calibration, a practical method using a defocused spherical surface is described and verified with an absolute testing instrument based on laser deflectometry, which was developed at Beijing Institute of Technology. The feasibility of the schemes is shown and experimental results are presented.

  Info
Periodical
Key Engineering Materials (Volumes 295-296)
Edited by
Yongsheng Gao, Shuetfung Tse and Wei Gao
Pages
741-746
DOI
10.4028/www.scientific.net/KEM.295-296.741
Citation
Q. Hao, Q.D. Zhu, Y.T. Wang, "Error Evaluation of Aspheric Surfaces and Calibration of the Test Instrument", Key Engineering Materials, Vols. 295-296, pp. 741-746, 2005
Online since
October 2005
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: Michael F. Kuechel, Daniel M. Sykora
Abstract:Recent developments in next generation disc technology, cameras in mobile phones, zoom-lenses for small digital cameras and camcorders,...
1142
Authors: Chao Chang A. Chen, Chih Ching Lin, Rung Chen
Abstract:Contact stylus instrument has difficulties in tracing large slope angle (LSA) lens for surface profile measurement due to the dilation of...
312
Authors: Kun Pan, Yin Biao Guo, Xiao Long Ke, Shi Han Zhang
Abstract:In accordance with the requirements and characteristics of non-axisymmetric aspheric surface measuring, three measuring paths were put...
4351
Authors: Mu Zheng Xiao, Satomi Jujo, Satoru Takahashi, Kiyoshi Takamasu
Abstract:Large aspheric mirrors with diameter over 300 millimeters with high surface accuracy are wildly used in many areas such as astronomical...
604
Authors: Xiang Yang Lei, Hao Huang, Feng Yang, Xian Hua Chen, Qiao Xu
Abstract:In this paper, an on-machine profile measuring system for aspheric ground surface was presented, which involved data processing with improved...
1613