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. 22, 1995
Filed:
Apr. 12, 1994
Tsutomu Takizawa, Tokyo, JP;
Toyo Glass Company Limited, Tokyo, JP;
Abstract
An inspection apparatus which automatically inspects a bottom border portion of a transparent glass vessel for a foreign article accurately is disclosed. Light is projected and received by way of first and second polarization filters through a rotating glass vessel to image the vessel obliquely from below by a solid state image pickup elements of a camera. Brightness values of outputs of the elements of the camera are compared with threshold values for binary digitization and determined as abnormality values when they are higher. The threshold values are varied and the abnormality values are corrected in accordance with the positions of the elements of the camera, and then presence or absence of a foreign article is determined from the corrected abnormality values or the sum of them.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile