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. 31, 2010
Filed:
Nov. 02, 2005
Applicant:
Junming Tu, Bath, NY (US);
Inventor:
Junming Tu, Bath, NY (US);
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 17/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A quartz metal halide lamp includes an outer sealed envelope defining an interior space, and an arc tube disposed in the interior space. The arc tube has a fill space. A chemical fill is disposed in the fill space. The chemical fill includes sodium halide and lanthanide halide, with the lanthanide halide selected from the group consisting of europium iodide, europium bromide, praseodymium iodide, praseodymium bromide, ytterbium iodide, ytterbium bromide and combinations thereof. The lanthanide halide is between 2 and 6 weight percent of the chemical fill. Electrodes are partially disposed within the fill space.