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:
Dec. 28, 1976
Filed:
Jan. 30, 1976
Applicant:
Inventors:
Takao Toryu, Chigasaki, J;
Akiyasu Kagami, Ninomiya, J;
Takashi Hase, Kamakura, J;
Junro Koike, Machida, J;
Tetsuo Sakai, Tokyo, J;
Hiroshi Murakami, Yokohama, J;
Iwao Oishi, Kawasaki, J;
Assignee:
Dai Nippon Toryo Co., Ltd., Tokyo, J;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
313487 ; 313185 ; 313214 ; 313226 ;
Abstract
A luminous device includes a cell, electrodes having a discharge gap of from 0.1 to 3.0 mm, a phosphor and a gas at a pressure of 30 to 300 nm, the gas having discharge emission spectra below 200 nm. The phosphor is one of various cerium activated yttrium silicates or europium activated orthophosphates and is disposed in the cell for exposure to the emission discharge of the gas. The device gives off blue light with higher emission efficiency and chroma saturation.