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.
Type:
Grant
Filed:
December 30, 2009
Date of Patent:
April 15, 2014
Assignee:
Focus Brite, LLC
Inventors:
W. Scott Tobey, Jeffrey J. Blanco, Dwayne D. Forsyth, Steven Devick
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.
Type:
Application
Filed:
December 30, 2009
Publication date:
November 3, 2011
Applicant:
FOCUS BRITE, LLC
Inventors:
W. Scott Tobey, Jeffrey J. Blanco, Dwayne D. Forsyth, Steven Devick