The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2024
Filed:
Jul. 30, 2020
Soochow University, Suzhou, CN;
Xi Chen, Suzhou, CN;
Peiji Guo, Suzhou, CN;
Zhuocheng Dai, Suzhou, CN;
Yongxiang Zhu, Suzhou, CN;
Chenchao Li, Suzhou, CN;
SOOCHOW UNIVERSITY, Suzhou, CN;
Abstract
A method for numerical control milling, forming and polishing of a large-diameter aspheric lens to solve the problems of long time-consuming and severe tool wear in the machining of a meter-scale large-diameter aspheric surface is disclosed. An aspheric surface is discretized into a series of rings with different radii, and the rings are sequentially machined through generating cutting by using an annular grinding wheel tool; the rings are equally spaced, there are a total of N rings, and the width of any ring is jointly determined by the Nring, the (N−1)ring, positioning accuracy, and a generatrix equation of the aspheric lens, and the nring has a curvature radius of Rn=sqrt(R0−k*(n*dx)); and the aspheric surface is enveloped by a large number of rings.