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:
May. 03, 2011
Filed:
Jul. 28, 2008
Applicants:
Arlene Hecker, Beverly, MA (US);
Jeffrey Holt, Exeter, NH (US);
Dana Caldwell, Middleton, MA (US);
Inventors:
Assignee:
OSRAM SYLVANIA Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 17/18 (2006.01); C03C 8/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high intensity discharge lamp includes an arc tube with a chemical fill, capillaries extended from the arc tube, electrodes fed through the capillaries into the arc tube, and a frit seal that seals the capillaries, where the frit seal includes silica (SiO) in a range of more than 0 wt % to less than 5 wt %, alumina (AlO), and one of dysprosia (DyO) and yttrium oxide (YO). This frit seal material can withstand a higher operating temperature so that the length of the capillaries can be reduced compared to those sealed with conventional frit seal material.