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:
Jan. 24, 2017
Filed:
May. 09, 2014
Applicant:
General Electric Company, Schenectady, NY (US);
Inventors:
Agoston Boroczki, Budapest, HU;
Peter Horváth, Budapest, HU;
Assignee:
GENERAL ELECTRIC COMPANY, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J 61/33 (2006.01); H01J 61/30 (2006.01);
U.S. Cl.
CPC ...
H01J 61/33 (2013.01); H01J 61/302 (2013.01);
Abstract
The geometry of a High Intensity Discharge (HID) arc tube is controlled to improve lamp color control and temperature distribution. In some embodiments, conical sections located at the transition zones near the electrodes are included to provide funnel-like body-leg interface portions. The body-leg interface portions are shaped so as to advantageously control the temperature distribution along the internal surface of the discharge chamber wall so that it monotonically decreases resulting in a stable local cold spot location at the body-leg interface.