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. 28, 1986
Filed:
Feb. 27, 1984
Albert G Choate, Honeoye Falls, NY (US);
Automation Gages, Inc., Rochester, NY (US);
Abstract
An annular Fresnel lens surrounds a tubular barrel or sleeve containing an objective lens system, which is focussed on an object that is positioned a predetermined distance beyond one end of the barrel. Four independently operable light sources are arranged in equi-angularly spaced relation around the outside of the lens barrel to direct light onto each of four mirrors, which are mounted in intersecting planes around the outside of the lens barrel to reflect light in four quadrants onto the side of the Fresnel lens remote from said object. The Fresnel lens focuses light from the mirrors obliquely onto the object, an image of which is thus projected by the objective lens through the lens barrel toward, for example, a video sensor, which forms part of a video inspection machine.