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:
Jun. 16, 2015
Filed:
May. 18, 2011
Lukas Kuepper, Aachen, DE;
Michael Haacke, Aachen, DE;
Klaus Schoeller, Nideggen, DE;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
The invention describes a gas-discharge lamp () comprising a vessel (), which vessel is partially coated with an essentially rectangular stripe (S) arranged circumferentially on a surface of the vessel, and wherein a first long side () of the stripe is situated close to a base () of the lamp, and the width (w) of the stripe is such that a first angle (α) subtended at a lamp center between a radius (r) and a point on the first long side () of the stripe comprises at most 55°, and a second angle (α) subtended at the lamp center between the radius and a point on a second long side () of the stripe comprises at most 50°. The invention also describes a reflector for a lamp, comprising a reflective interior surface realized to deflect light originating from the lamp outward to give a specific beam profile with a bright/dark cutoff line and a shoulder, and wherein the lamp, in particular a lamp as described above, is positioned horizontally in the reflector, and wherein the reflective interior surface comprises at least one beam-shaping region realized to deflect a portion of the light emitted from the lamp between 7.5° and 15° below a horizontal plane, at a specific region within the beam profile.