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:
Jan. 02, 2001
Filed:
Nov. 20, 1998
Jonathan Ludlow, Lexington, MA (US);
Acuity Imaging, LLC, Nashua, NH (US);
Abstract
An inspection system and method for optically inspecting substantially the entire circumference of a cylindrical surface, such as a cigarette is provided. The system includes first and second moveable supports for supporting and transporting the cigarette so that a first side of the cylindrical surface of the cigarette is presented to a first visual inspection apparatus and a second side, which includes at least those portions of the cylindrical surface of the cigarette not included in the first side, is presented to a second visual inspection apparatus. Each visual inspection apparatus includes an illumination source for illuminating the presented side of the cigarette's surface. Each illumination source is configured to direct light onto the cigarette's surface substantially in the direction of the longitudinal axis of the cigarette at a low, acute angle with respect to the longitudinal axis. An image of each presented side of the cigarette is captured using an image capture device, which is preferably a time domain and integration (TDI) camera. The system also includes multiple inspection system processors for processing the captured images.