Noncontact Measurement for Radius of Curvature of Unpolished Lens
Author
Source
International Journal of Optics
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-09-29
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Liang, Haifeng. 2014. Noncontact Measurement for Radius of Curvature of Unpolished Lens. International Journal of Optics،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1036758
Modern Language Association (MLA)
Liang, Haifeng. Noncontact Measurement for Radius of Curvature of Unpolished Lens. International Journal of Optics No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1036758
American Medical Association (AMA)
Liang, Haifeng. Noncontact Measurement for Radius of Curvature of Unpolished Lens. International Journal of Optics. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1036758
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036758