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:
Aug. 18, 2020
Filed:
Dec. 23, 2016
South China University of Technology, Guangdong, CN;
Jin Xie, Guangdong, CN;
Long Zhang, Guangdong, CN;
SOUTH CHINA UNIVERSITY OF TECHNOLOGY, Guangdong, CN;
Abstract
The present invention provides a method for micro-grinding tip-accurately induced brittle fracture forming of a curved mirror surface. The method includes the steps of: grinding a surface of an optical glass material by means of a V-shaped tip of a diamond grinding wheel to form a V-shaped microgroove having a groove micro-tip; setting two supporting points with a distance of L therebetween on one side of the optical glass material where the microgroove is machined, providing a loading pressing head having a horizontal deviation distance of l between a loading point and the groove micro-tip on the other side of the optical glass material, and allowing the loading pressing head to perpendicularly apply a loading force F onto the optical glass material with a loading speed of v, and forming a penetrated smooth curved mirror surface within 0.3 millisecond via the loading point of the loading force F and under induction of the groove micro-tip.