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. 08, 2019
Filed:
Jan. 02, 2018
Osram Gmbh, Munich, DE;
Nicola Schiccheri, Padua, IT;
Alessandro Bizzotto, Castelfranco Veneto, IT;
Marco Munarin, Paese, IT;
OSRAM GMBH, Munich, DE;
Abstract
A lighting device, which may be employed e.g. as a retrofit bulb for vehicle lamps, includes a light radiation source, e.g. a LED source, and a beam-narrowing optical system facing the light radiation source, for propagating a narrowed light radiation beam of the same source along a longitudinal axis of the device. Arranged distally of the beam-narrowing optical system along said longitudinal axis, there is moreover provided a cascaded arrangement of: a light-condensing lens, a light-driving lens, a filament-like body including annular reflective surfaces extending around the longitudinal axis and exposed to light radiation from the light radiation source propagated through the light-condensing lens and the light-driving lens, a distal mirror member having a reflective surface facing towards the filament-like body, to reflect light radiation towards annular reflective surfaces in said plurality of annular reflective surfaces.