Light emitting device having a nitride compound semiconductor and a phosphor containing a garnet fluorescent material
First Claim
1. A light emitting device comprising:
- a light emitting component capable of emitting blue light, anda coating member covering said light emitting component and containing a phosphor capable of absorbing a part of blue light emitted by said light emitting component and emitting light of wavelength different from that of the absorbed light,wherein the color of said phosphor is yellow and said coating member is colored opal by containing a dispersant.
1 Assignment
0 Petitions
Accused Products
Abstract
The white light emitting diode comprising a light emitting component using a semiconductor as a light emitting layer and a phosphor which absorbs a part of light emitted by the light emitting component and emits light of wavelength different from that of the absorbed light, wherein the light emitting layer of the light emitting component is a nitride compound semiconductor and the phosphor contains garnet fluorescent material activated with cerium which contains at least one element selected from the group consisting of Y, Lu, Sc, La, Gd and Sm, and at least one element selected from the group consisting of Al, Ga and In and, and is subject to less deterioration of emission characteristic even when used with high luminance for a long period of time.
-
Citations
8 Claims
-
1. A light emitting device comprising:
-
a light emitting component capable of emitting blue light, and a coating member covering said light emitting component and containing a phosphor capable of absorbing a part of blue light emitted by said light emitting component and emitting light of wavelength different from that of the absorbed light, wherein the color of said phosphor is yellow and said coating member is colored opal by containing a dispersant. - View Dependent Claims (7, 8)
-
-
2. A light emitting device comprising:
-
a light emitting component capable of emitting blue light, a coating member covering said light emitting component and containing a phosphor capable of absorbing a part of blue light emitted by said light emitting component and emitting light of wavelength different form that of the absorbed light, a molded member surrounding said light emitting component covered by said coating member, wherein the color of said phosphor is yellow and said molding member is colored opal by containing dispersant. - View Dependent Claims (3, 4, 5, 6)
-
Specification