Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shinsuke Fujiwara0
Date of Patent
October 31, 2006
0Patent Application Number
110187400
Date Filed
December 20, 2004
0Patent Primary Examiner
Patent abstract
An ultraviolet type white color light emitting device (Q) including a 340 nm–400 nm ultraviolet InGaN-LED, a first fluorescence plate of ZnS doped with more than 1×1017cm−3 Al, In, Ga, Cl, Br or I for absorbing ultraviolet rays and producing blue light (fluorescence), a second fluorescence plate of ZnSSe or ZnSe doped with more than 1×1017 cm−3 Al, In, Ga, Cl, Br or I for absorbing the blue light, producing yellow light (fluorescence) and synthesizing white color light by mixing the yellow light with the blue light.
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