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. 08, 2023
Filed:
Mar. 07, 2022
Applicant:
Artemide S.p.a., Milan, IT;
Inventors:
Carlotta Francesca Isolina Maria De Bevilacqua, Milan, IT;
Roberto Efrem Franzosi, Milan, IT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 5/04 (2006.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21V 5/04 (2013.01); F21Y 2115/10 (2016.08);
Abstract
An LED lighting device, extending along and about a central longitudinal axis, comprises at least one LED light source and a lens made of a transparent material, positioned along the axis; the lens having a concave inlet surface, facing the source, and a convex outlet surface, substantially aligned along the axis and extending about the axis; the inlet surface and the outlet surface have respective elliptic profiles, being defined by respective revolution surfaces generated by the rotation about the axis of respective ellipse portions belonging to a first and a second generatrix ellipses respectively.