Xi'an Institute of Optics and Precision Mechanics,CAS
Phosphor-converted LED devices having improved light distribution uniformity | |
其他题名 | Phosphor-converted LED devices having improved light distribution uniformity |
SU LIN OON; HONG HUAT YEOH; SIEW IT PANG; MENG EE LEE; KIAN SHIN LEE | |
2011-02-23 | |
专利权人 | INTELLECTUAL DISCOVERY CO., LTD. |
公开日期 | 2011-02-23 |
授权国家 | 英国 |
专利类型 | 授权发明 |
摘要 | A Phosphor-Converted Light emitting diode Device (NPCLD) 500 or a method of making NPCLD 500 comprising concave base housing 506, Light Emitting Diode (LED) 508 (e.g. polymer, semiconductor or laser LED) having p-doped and n-doped semiconductor bodies 510, 512 (e.g. gallium nitride, indium-gallium-nitride or gallium-aluminium-indium-nitride with emission 420-490nm), phosphor body 522, first lens 526 having flat upper surface 528 and second lens 536 having convex upper surface 538 wherein first lens 526 and phosphor body 522 have a flat interface. Phosphor body 522 may have a flat upper surface 524 and may cover LED 508. The phosphor body (122, fig. 1 and 326, fig. 3) may have a convex upper surface (124, fig. 1 and 328, fig. 3). Lenses 526, 536 may be diffused lenses having dispersed titanium dioxide or silicon dioxide particles. First lens 526 may be placed on phosphor body 522 or the phosphor body (726, fig. 7) may be formed on the first lens (722, fig. 7) which covers the LED (708, fig. 7). The phosphor body 522 may comprise a phosphor (e.g. cerium-doped yttrium-aluminium garnet with emission 550-585nm) dispersed in an encapsulant (e.g. epoxy, silicone or acrylate resin). |
其他摘要 | 磷光体转换发光二极管器件(NPCLD)500或制造NPCLD 500的方法包括具有p掺杂和n掺杂半导体的凹形基座壳体506,发光二极管(LED)508(例如聚合物,半导体或激光LED)主体510,512(例如氮化镓,铟 - 氮化镓或镓 - 铝 - 铟 - 氮化物,发射420-490nm),磷光体主体522,具有平坦上表面528的第一透镜526和具有凸起上表面538的第二透镜536其中第一透镜526和荧光体522具有平坦的界面。磷光体522可以具有平坦的上表面524并且可以覆盖LED 508.磷光体(122,图1和326,图3)可以具有凸起的上表面(124,图1和328,图3)。 )。透镜526,536可以是具有分散的二氧化钛或二氧化硅颗粒的漫射透镜。第一透镜526可以放置在磷光体主体522上,或者磷光体主体(图7中的726)可以形成在覆盖LED(图7中的708)的第一透镜(722,图7)上。磷光体主体522可包括分散在密封剂(例如环氧树脂,硅树脂或丙烯酸酯树脂)中的磷光体(例如,具有发射550-585nm的铈掺杂的钇铝石榴石)。 |
授权日期 | 2011-02-23 |
申请日期 | 2006-08-11 |
专利号 | GB2466892B |
专利状态 | 失效 |
申请号 | GB2010005432 |
公开(公告)号 | GB2466892B |
IPC 分类号 | H01L33/50 | H01L33/54 | H01L51/50 | H01L51/52 | H01L33/62 |
专利代理人 | - |
代理机构 | - |
文献类型 | 专利 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/37244 |
专题 | 半导体激光器专利数据库 |
作者单位 | INTELLECTUAL DISCOVERY CO., LTD. |
推荐引用方式 GB/T 7714 | SU LIN OON,HONG HUAT YEOH,SIEW IT PANG,et al. Phosphor-converted LED devices having improved light distribution uniformity. GB2466892B[P]. 2011-02-23. |
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GB2466892B.PDF(1272KB) | 专利 | 开放获取 | CC BY-NC-SA | 请求全文 |
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