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. 21, 2019
Filed:
Aug. 22, 2014
Signify Holding B.v., Eindhoven, NL;
Oliver Dross, Eindhoven, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
An optical system for producing uniform illumination on a target, comprising a lens body (), a recess () formed on a bottom side of the lens body () at a central region thereof accommodating a light source arranged in an integration zone (), the recess () having a side entry surface () and a central entry surface (), a total internal reflection surface () provided at a side surface of the lens body (), wherein the total internal reflection surface () comprises a plurality of first lenslets (); and an exit surface () provided at a top side of the lens body (), the exit surface () comprising a plurality of second lenslets (), wherein each of the first lenslets () forms a pair () with each of the second lenslets (), wherein the first lenslet () of the pair () focuses light from the integration zone () upon the second lenslet () of the pair (), and wherein the second lenslet () of the pair () focuses the target upon the first lenslet () of the pair (), such that the lens () produces uniform illumination on the target.