| US 7,531,960 B2 | ||
| Light emitting device with blue light LED and phosphor components | ||
| Yoshinori Shimizu, Tokushima (Japan); Kensho Sakano, Anan (Japan); Yasunobu Noguchi, Tokushima (Japan); and Toshio Moriguchi, Anan (Japan) | ||
| Assigned to Nichia Corporation, Anan-shi (Japan) | ||
| Filed on Mar. 05, 2007, as Appl. No. 11/682,014. | ||
| Application 11/682014 is a division of application No. 10/609402, filed on Jul. 01, 2003, granted, now 7,362,048. | ||
| Application 10/609402 is a division of application No. 09/458024, filed on Dec. 10, 1999, granted, now 6,614,179. | ||
| Application 09/458024 is a division of application No. 09/300315, filed on Apr. 28, 1999, granted, now 6,069,440. | ||
| Application 09/300315 is a division of application No. 08/902725, filed on Jul. 29, 1997, granted, now 5,998,925. | ||
| Claims priority of application No. P 08-198585 (JP), filed on Jul. 29, 1996; application No. P 08-244339 (JP), filed on Sep. 17, 1996; application No. P 08-245381 (JP), filed on Sep. 18, 1996; application No. P 08-359004 (JP), filed on Dec. 27, 1996; and application No. P 09-081010 (JP), filed on Mar. 31, 1997. | ||
| Prior Publication US 2007/0159060 A1, Jul. 12, 2007 | ||
| Int. Cl. H05B 33/00 (2006.01) | ||
| U.S. Cl. 313—512 [257/103; 428/690] | 23 Claims |
| 1. A light emitting device which comprises;
a light emitting component having a gallium nitride based semiconductor; and
a resin containing at least one phosphor capable of absorbing a part of a first light of blue color emitting from the light
emitting component and emitting a second light of wavelength different from that of the absorbed first light, said emission
of the second light emitted from at least one fluorescent material and a light of an unabsorbed first light passes through
said fluorescent material from said light emitting component, said unabsorbed first light and said second light are capable
of overlapping each other to make white light;
wherein a concentration of the phosphor increases from the surface of a resin that contains the phosphor toward the light
emitting component, or the concentration of phosphor increases from the light emitting component toward the resin surface.
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