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:
Jul. 10, 2012
Filed:
May. 13, 2008
Applicants:
Edwin Charles Odell, Leicerster, GB;
Barry Preston, Melton Mowbray, GB;
Inventors:
Edwin Charles Odell, Leicerster, GB;
Barry Preston, Melton Mowbray, GB;
Assignee:
Ceravision Limited, Milton Keynes, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 17/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrodeless bulb has a hollow quartz tube, with a solid stem extending from one end and a short hollow tip extending from the other end. The hollow interior of the tube extends into the tip with the same diameter as in the tube, but the wall thickness of the tip is reduced from that of the tube. The bulb is charged with an amount of indium bromide and traces of other metal halides to adjust light spectrum and a filling of xenon gas.