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:
Apr. 15, 2014
Filed:
Dec. 30, 2009
W. Scott Tobey, Lombard, IL (US);
Jeffrey J. Blanco, Oglesby, IL (US);
Dwayne D. Forsyth, Deer Park, IL (US);
Steven Devick, Downers Grove, IL (US);
W. Scott Tobey, Lombard, IL (US);
Jeffrey J. Blanco, Oglesby, IL (US);
Dwayne D. Forsyth, Deer Park, IL (US);
Steven Devick, Downers Grove, IL (US);
Focus Brite, LLC, Oakbrook Terrace, IL (US);
Abstract
A device may include a magnifying lens having a focal length that defines a focal plane, a light source providing visible light directed toward the focal plane, and a controller. The controller may be programmed to receive a signal indicative of the distance from the device to an object, cause the light source to emit light at a first brightness if the distance is at least substantially equal to the focal length of the lens, and cause the light source to emit light at a second brightness, dimmer than the first brightness, if the distance is not at least substantially equal to the focal length of the lens.