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. 27, 2012
Filed:
Oct. 13, 2008
Hisaya Takahashi, Kanagawa, JP;
Atsushi Namba, Tokyo, JP;
Toshiya Arakawa, Tokyo, JP;
Mikio Ono, Tokyo, JP;
Hisaya Takahashi, Kanagawa, JP;
Atsushi Namba, Tokyo, JP;
Toshiya Arakawa, Tokyo, JP;
Mikio Ono, Tokyo, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided herein is a light-emitting apparatus capable of achieving both improved durability and higher brightness with an inexpensive and simple construction. A heat resistant glass substrateis mounted in a vacuum chamber, and while an anode electrode(and a light emitter) is mounted on the glass substrate, the glass substrateis separated from a glass substrate. This precisely protects the vacuum chamberfrom thermal damage due to light emission upon excitation, even when the current density between the cathode electrodeand the anode electrodeis controlled at a high level to cause the light emitterto emit light at high brightness. Accordingly, this eliminates the need to make the entire vacuum chamberexcessively heat-resistant, permitting construction from an inexpensive material such as soda-lime glass; consequently both improvements in the durability of the light-emitting apparatusand enhancement in brightness thereof can be accomplished with an inexpensive and easy construction.