Journal article
Noncontact Measurement for Radius of Curvature of Unpolished Lens
International journal of optics, v 2014(2014), pp 1-7
01 Jan 2014
Abstract
A noncontact mathematical model to measure radius of curvature (ROC) of an unpolished spherical lens was proposed and also proved by experiments. This model gives ROC as a function of arcs radii and their separation distance, where the radii of the corresponding arcs could be acquired by taking coordinates of points on the arcs when two parallel lines of light project onto a lens surface. Our experiments demonstrated that the measured maximum relative error was 0.027% for a concave surface with a 38.19 mm ROC and 0.021% for a convex surface with a 97.75 mm ROC, which were all in agreement with those of theory prediction error. The suggested method presented a fast noncontact method for testing ROC of lens during coarse grinding and fine grinding.
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Details
- Title
- Noncontact Measurement for Radius of Curvature of Unpolished Lens
- Creators
- Haifeng Liang - Xian Technol Univ, Coll Photoelect Engn, Xian 710032, Shaanxi, Peoples R ChinaHualou Liang - School of Biomedical Engineering, Science, and Health Systems (1997-)
- Publication Details
- International journal of optics, v 2014(2014), pp 1-7
- Publisher
- Hindawi Publishing Group
- Number of pages
- 7
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000215267200004
- Scopus ID
- 2-s2.0-84911943844
- Other Identifier
- 991019320513004721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Optics