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. 30, 1989
Filed:
Oct. 27, 1987
Hitoshi Imamura, Yokohama, JP;
Junichi Nakajima, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Toshiba Electric Equipment Corporation, Tokyo, JP;
Abstract
A cathode is arranged at one end of an envelope of a fluorescent lamp, and a plurality of anodes are arranged at the other end. A discharge path-forming structure is disposed between the cathode and anodes. The structure comprises a vessel having an open end at the position adjacent to the anodes and an inner space, and also comprises a dividing element for dividing the inner space into a plurality of divided discharge paths each including a corresponding anode. A fluorescent material layer is coated on the inner surface of the vessel in a manner whereby the lamp generates different color light beams.