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:
Mar. 04, 2025
Filed:
Dec. 22, 2021
Beijing Tongmei Xtal Technology Co., Ltd., Beijing, CN;
Beijing Tongmei Xtal Technology Co., Ltd., Beijing, CN;
Abstract
The present invention provides a method for detecting surface haze of materials, comprising: optionally, preliminary inspection, which is conducted on materials, to identify the materials with no visible surface defects; and surface haze inspection, to detect the surface haze of the materials; wherein an optical filter module is configured in surface haze inspection setup to filter off the photoluminescence signal of the materials in the light path to the detector, so as to avoid the photoluminescence signal being detected by the detector. The invention further provides a setup for detecting surface haze of materials. By using the invented method and setup for detecting surface haze, it is possible to accurately obtain the surface haze value and/or distribution of the materials.