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, 2012
Filed:
Nov. 15, 2005
Applicants:
Tadahiro Ohmi, Miyagi, JP;
Yasuyuki Shirai, Miyagi, JP;
Inventors:
Tadahiro Ohmi, Miyagi, JP;
Yasuyuki Shirai, Miyagi, JP;
Assignee:
Tohoku University, Sendai-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a fluorescent lamp, a fluorescent material has a particle size of not greater than 1 μm and a thickness of not greater than 5 μm. With this structure, ultraviolet ray of 254 nm is efficiently converted into visible light and the light obtained by conversion is efficiently emitted to the outside.