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. 04, 2022
Filed:
Sep. 18, 2020
Applicant:
Artemide S.p.a., Milan, IT;
Inventor:
Ernesto Gismondi, Milan, IT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); F21V 29/70 (2015.01); F21Y 103/33 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
G02B 6/0036 (2013.01); F21V 29/70 (2015.01); G02B 6/0051 (2013.01); G02B 6/0088 (2013.01); F21Y 2103/33 (2016.08); F21Y 2115/10 (2016.08);
Abstract
An LED lighting lamp comprises an essentially annular perimetric frame positioned about an axis; a plurality of LEDs arranged along a radially inner perimetric edge of the frame and angularly spaced apart from one another about the axis; and a substantially flat and completely transparent light-guide plate, having two opposite faces substantially perpendicular to the axis and a radially outer perimetric edge facing the LEDs; at least one face of the light-guide plate is provided with an engraving pattern, formed by a plurality of notches shaped so as to extract light from the light-guide plate through said at least one face.