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. 14, 2001
Filed:
Sep. 25, 2000
Lasor AG, , DE;
Abstract
The invention relates to a method of determining the optical quality of and for detecting faults in flat glass, especially float glass, or other optically transparent materials, a video camera (,) being arranged to monitor an illuminating device (,) either through a glass (,) or by observing the reflection thereof on the glass or material, the focus being on the glass (,) and the material, respectively, and the video camera (,) generating signals in dependence on the quality of the glass (,), with these signals being evaluated, wherein an illuminating device (,) is used whose color and/or intensity is changed in a defined manner, the observation spot (,) of the video camera (,) in the faultless condition of the glass (,) is located substantially in the middle of the illuminating device (,), the illuminating device (,) has assigned thereto two video signals U,,U,, and a change of intensity of the video signals U,,U,is used for evaluating the quality of the glass (,).