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:
Nov. 28, 2006
Filed:
Jul. 30, 2004
Gary A. Lebens, Chaska, MN (US);
Gary A. Lebens, Chaska, MN (US);
PPT Vision, Eden Prairie, MN (US);
Abstract
A machine-vision system that provides quick changing and/or automatic adjustment of illumination angle, dispersion, intensity, and/or color of illumination. One such system includes a light source emitting polarized light, a machine-vision imager, an image processor operative to generate a quality parameter based on an image, and one or more of the means described above for selectively directing the light in a predetermined pattern based on its polarization and based on the quality parameter of the image. Some embodiments include an imager, a controllable light source, first and second optical elements that selectively direct light in first and second patterns, and a controller controlling the light characteristics using the first and/or second light patterns. One method includes setting one or more illumination parameters, illuminating the object based on the illumination parameters, obtaining an image, generating a quality parameter of a region of interest, and iterating using a different illumination parameters.