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	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
著作权人	INTELLECTUAL DISCOVERY CO., LTD.
专利号	GB2466892B
国家	英国
文献子类	授权发明
其他题名	Phosphor-converted LED devices having improved light distribution uniformity
英文摘要	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).
公开日期	2011-02-23
申请日期	2006-08-11
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/37243]
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. 2011-02-23.

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