Study on Design and Diamond Turning of Optical Freeform Surface for Progressive Addition Lenses
Joint Authors
Wei, Yi
Zhai, Peng
Chen, Xiaoyi
He, Lei
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-22
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Optical freeform surface components have attracted much attention due to their high degree of design freedom and small size.
However, the design and processing difficulty of such components limit its wide application in optics industry.
In recent years, diamond turning has been considered an efficient method for processing optical freeform surfaces, but the research on tool path generation of this processing method is not systematic.
Progressive addition lens (PAL) is a typical optical freeform surface and is widely used to correct people’s vision problems.
Firstly, this paper introduces a method of designing PAL.
Then, an optimized tool path generation method for diamond turning of the optical freeform surface is proposed, the equal angle method is used to select the discrete points, and a tool nose radius compensation method suitable for both slow slide servo (SSS) and fast tool servo (FTS) is adopted.
Finally, the turning experiment is carried out with a single point diamond lathe, and a PAL surface with a roughness of 0.087 μm was obtained.
The power and astigmatism distributions were measured using a Rotlex freeform verifier to verify the rationality of the optical design.
American Psychological Association (APA)
Wei, Yi& Zhai, Peng& Chen, Xiaoyi& He, Lei. 2020. Study on Design and Diamond Turning of Optical Freeform Surface for Progressive Addition Lenses. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1194070
Modern Language Association (MLA)
Wei, Yi…[et al.]. Study on Design and Diamond Turning of Optical Freeform Surface for Progressive Addition Lenses. Mathematical Problems in Engineering No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1194070
American Medical Association (AMA)
Wei, Yi& Zhai, Peng& Chen, Xiaoyi& He, Lei. Study on Design and Diamond Turning of Optical Freeform Surface for Progressive Addition Lenses. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1194070
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194070