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:
May. 10, 2016
Filed:
Oct. 31, 2014
Gianni R. Boccoleri, Lantana, TX (US);
David P. Chase, Southlake, TX (US);
Robert L. York, Lantana, TX (US);
Paul Huy Nguyen, Flower Mound, TX (US);
Gianni R. Boccoleri, Lantana, TX (US);
David P. Chase, Southlake, TX (US);
Robert L. York, Lantana, TX (US);
Paul Huy Nguyen, Flower Mound, TX (US);
STRYKER CORPORATION, Kalamazoo, MI (US);
Abstract
A Fresnel lens including a plurality of sawtooth-shaped projections, with each projection including a first surface at a first angle and a second surface at a second angle. Each first surface has top and bottom edges and each second surface has top and bottom edges. Each projection has a top intersection where the top edge of the first surface intersects the top edge of the second surface. Adjacent projections have a bottom intersection where the bottom edge of the second surface of a first one of the adjacent projections intersects the bottom edge of the first surface of a second one of the adjacent projections. The lens portion is opaque at the top intersection of the projections, at the bottom intersection of adjacent projections, and on the first surface between the top intersection and the bottom intersection.