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:
Oct. 23, 2001
Filed:
Mar. 21, 2000
Applicant:
Inventors:
Hisashi Honda, Yokosuka, JP;
Seiji Ashida, Yokosuka, JP;
Assignee:
Toshiba Lighting & Technology Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J 6/188 ;
U.S. Cl.
CPC ...
H01J 6/188 ;
Abstract
The high-pressure discharge lamp of the present invention comprises a light-transmitting ceramic discharge vessel (,), power-supplying conductors (,), a pair of electrodes (,), seals (,) made of ceramic-sealing compound, and a discharge medium. The discharge vessel has an inner volume of 0.1 cc or less. The distal ends of the electrodes are arranged so as to maintain a distance d1 of 1.0 mm or more from the inner surface of the light-transmitting vessel on a plane which is perpendicular to the axis of the light-transmitting vessel and includes the distal ends of the electrodes.