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:
Jul. 13, 2021
Filed:
Sep. 30, 2016
Suzhou Ptc Optical Instrument Co., Ltd, Jiangsu, CN;
Xiuxin Shang, Jiangsu, CN;
Xudong Wang, Jiangsu, CN;
Xiupu Wang, Jiangsu, CN;
Fei Yan, Jiangsu, CN;
Xiang Tang, Jiangsu, CN;
You Wang, Jiangsu, CN;
Suzhou PTC Optical Instrument Co., Ltd, Jiangsu, CN;
Abstract
The invention provides a glass surface stress meter and multiple-tempered glass surface stress meter, and the glass surface stress meter includes a light source (), a light refraction element () and an imaging unit. The light refraction element () is provided at a light-emitting direction of the light source () for placing a measured glass (). The light from the light source () comes into the imaging unit to imaging after refracted by the light refractive element (). The imaging unit includes lens group () and a imaging sensor (). A front end of the lens group is provided at the light-refraction direction of the light refraction element () and a back-end is provided with the imaging sensor.