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. 30, 2016
Filed:
Aug. 24, 2011
Juergen Flechsig, Plauen, DE;
Martin Tobias Polster, Pausa, DE;
Hans-alo Dohmen, Aldenhoven, DE;
Ralph Kecke, Plauen, DE;
Juergen Flechsig, Plauen, DE;
Martin Tobias Polster, Pausa, DE;
Hans-Alo Dohmen, Aldenhoven, DE;
Ralph Kecke, Plauen, DE;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
The invention describes a lamp (A,B,C,D) comprising a glass envelope () enclosing a light generating means (), and an axially and/or circumferentially graded absorption coating (A,B,C,D) applied to a surface of the glass envelope (), wherein the graded absorption coating (A,B,C,D) exhibits a smooth transition in a transition region (A,C,D) from a first coated region (A,B,C,D) on the glass envelope () to a second coated region (A,B,C,D) on the glass envelope (). The invention further describes a lighting assembly () comprising a lamp according to any of claimstoand a reflector () for collecting and shaping any light passing through the graded absorption coating (A,B,C,D) of the lamp (A,B,C,D). The invention also describes a method of manufacturing a lamp (A,B,C,D) comprising a glass envelope () enclosing a light generating means (), which method comprises applying an axially and/or circumferentially graded absorption coating (A,B,C,D) to a surface of the glass envelope () such that the graded absorption coating (A,B,C,D) exhibits a smooth transition in a transition region (A,B,C,D) from a first coated region (A,B,C,D) to a second coated region (A,B,C,D).