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:
Apr. 04, 2023
Filed:
Sep. 24, 2019
No.59 Institute of China Ordnance Industry, Chongqing, CN;
Shenzhen University, Shenzhen, CN;
University of Science and Technology Liaoning, Liaoning, CN;
Qiang Chen, Chongqing, CN;
Feng Gong, Shenzhen, CN;
Zhiwen Xie, Liaoning, CN;
Kangsen Li, Shenzhen, CN;
Xinfang Huang, Liaoning, CN;
Yuanyuan Wan, Chongqing, CN;
No.59 Institute of China Ordnance Industry, Chongqing, CN;
Shenzhen University, Shenzhen, CN;
University of Science and Technology Liaoning, Anshan, CN;
Abstract
A micro- and nano-hot embossing method for an optical glass lens array, including: preparing a mold with a micro-hole array by micro EDM, where the micro-hole array matches an optical glass lens array and the mold is made of a hard metal material which is conductive and meets strength and temperature requirements; preparing a nano nitride-based graded composite coating on a surface of the mold by magnetron sputtering; and pre-fabricating a glass preform and then placing the glass preform on the surface of the mold; heating the glass preform and hot embossing by a glass molding machine in vacuum; cooling in nitrogen atmosphere; and demolding to produce the optical glass lens array. The micro- and nano-hot embossing method of the present invention improves the surface quality of the optical glass lens array and reduces the cost and difficulty for manufacturing.