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:
Oct. 23, 2001
Filed:
Dec. 02, 1999
David V. Kerns, Jr., Waltham, MA (US);
J. Paul Moore, Leawood, KS (US);
PeakVision, LLC, Nashville, TN (US);
Abstract
A contact lens has at least one optical filter region that can be surrounded by a clear optical region. The one or more filter regions have a diameter such that an increasing percentage of visible light is transmitted to the pupil of the eye as lighting conditions change from high-intensity lighting environments to low-intensity lighting environments. The cooperation between the changing pupil and lens provides an automatic adjustment of light intensity perceived by the wearer in response to the changing light conditions. Different filtering characteristics are provided in the filter regions to enhance perception of light corresponding to light reflected by an object or background scene used in outdoor sporting and recreational activities, while attenuating other reflected light.