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:
Aug. 22, 2017
Filed:
Mar. 06, 2014
Aurora Limited, St Albans, GB;
Andrew Johnson, St Albans, GB;
Ju Tang Wang, Xixiang, CN;
Aurora Limited, St Albans, Hertfordshire, unknown;
Abstract
Optical lens () for a LED comprising a lens body () having: —a light-entering section (), where light from the LED enters the lens (), having a cross-sectional dimension (D) and recessed to accommodate a LED; —a light-emitting front face (); —a frusto-conical shape (), extending along a central axis between the light-entering section () and the light-emitting front face (), the outer surface of which incorporating a plurality of densely-distributed convex facets (); —a height (H) along said central axis; —a cross-sectional width (D) at the level of the light-emitting front face (). This optical lens enhances light utilization efficiency, avoids creating spots with chromatic aberration hence greatly improves color rendering.