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:
Mar. 31, 2009
Filed:
Jun. 10, 2006
Applicants:
Elliot Wyner, Peabody, MA (US);
Mary Berger, Manchester, NH (US);
Inventors:
Elliot Wyner, Peabody, MA (US);
Mary Berger, Manchester, NH (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 5/02 (2006.01); H01J 61/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A metal halide arc discharge lamp () having a lamp envelope () and an arc tube () mounted within the envelope; a shroud () surrounding the arc tube (); electrical lead-ins () for supplying electrical energy to the arc tube (); and a chemical fill within the arc tube to produce light when an arc is formed within the arc tube; the improvement comprising: the shroud () having a given thickness T and a given inside diameter ID having a relationship such that T is less than 2 mm and ID/T is less than 22.