The Progressive addition lens is used increasingly extensive with its advantages of meeting the requirements of distant and near vision at the same time. Started from the surface equations of progressive addition lens, combined with evaluation method of spherical power and cylinder power, the relationship equations between the surface sag and optical power distribution are derived. According to the requirements on difference of actual and nominal optical power from Chinese National Standard, the tolerance analysis and evaluation of prototype progressive addition surface with addition of 2.5m⁻¹ ( 7.5m⁻¹ ~ 10m⁻¹ ) is given in detail. The tolerance analysis method provides theoretical proof for lens processing control accuracy, and the processing feasibility of lens is evaluated much more reasonably.

Date Published: 19 October 2016
PDF: 10 pages
Proc. SPIE 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation, 101540M (19 October 2016); doi: 10.1117/12.2246464

Published in SPIE Proceedings Vol. 10154:
Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation
Min Xu; Ji Yang, Editor(s)