公开(公告)号：US20130127331A1

公开(公告)日：2013-05-23

申请号：US13715385

申请日：2012-12-14

申请人： KOITO MANUFACTURING CO., LTD.

发明人： Yasuaki TSUTSUMI ,  Masanobu MIZUNO ,  Takashi ONISHI

IPC分类号： C09K11/77 ,  B32B3/30 ,  B32B3/26 ,  H05B33/12

CPC分类号： C09K11/7774 ,  B32B3/266 ,  B32B3/30 ,  C04B35/44 ,  C04B35/62645 ,  C04B35/62695 ,  C04B2235/3225 ,  C04B2235/3229 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/602 ,  C04B2235/604 ,  C04B2235/764 ,  H01L25/0753 ,  H01L33/501 ,  H01L33/505 ,  H01L33/508 ,  H01L2224/16225 ,  H01L2924/10158 ,  H01L2933/0041 ,  H05B33/12

摘要： In a plate-shaped fluorescent member configured to convert the wavelength of the light emitted by a semiconductor light emitting element, the fluorescent member is formed of an inorganic material having a refractive index of 1.5 or more and a light transmittance at the emission peak wavelength of the semiconductor light emitting element of less than 20%. A concave portion is formed, of the surfaces of the fluorescent member, on the surface on the side where the light in the semiconductor light emitting element is mainly emitted. In the fluorescent member, the light transmittance of the light having a wavelength of 380 nm to 500 nm may be less than 20%. The concave portion may be a groove. The concave portion may be a plurality of holes that are scattered.

摘要翻译： 在被配置为转换由半导体发光元件发射的光的波长的板状荧光部件中，荧光部件由折射率为1.5以上的无机材料形成，发光峰值波长的光透射率为 半导体发光元件小于20％。 荧光部件的表面在半导体发光元件的主要发光侧的表面上形成凹部。 在荧光部件中，波长380nm〜500nm的光的透光率可以小于20％。 凹部可以是凹槽。 凹部可以是散布的多个孔。