发明授权
- 专利标题： White light emitting device with red and green-yellow phosphor
- 专利标题（中）： 白色发光装置，红色和绿色黄色荧光粉
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申请号： US13644440申请日： 2012-10-04
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公开(公告)号： US08907558B2公开(公告)日： 2014-12-09
- 发明人: Ryosuke Hiramatsu , Kunio Ishida
- 申请人： Ryosuke Hiramatsu , Kunio Ishida
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2012-058152 20120315
- 主分类号： H01L33/50
- IPC分类号： H01L33/50
摘要：
A white light emitting device includes a light emitting element having a peak wavelength at from 430 nm to 460 nm; and a fluorescent layer on the light emitting element containing a red fluorescent material and a green-yellow fluorescent material. The white light emitting device achieves high color rendering properties, a high average color rendering index Ra and a high luminescent efficiency, or a high white efficiency.
公开/授权文献
- US20130241396A1 WHITE LIGHT EMITTING DEVICE 公开/授权日：2013-09-19
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