公开(公告)号：US20110068697A1

公开(公告)日：2011-03-24

申请号：US12762943

申请日：2010-04-19

Applicant: David Hum

Inventor： David Hum

IPC: H05B37/02 ,  H01L33/48 ,  H01L33/00 ,  H01L33/50

CPC classification number: H01L25/0753 ,  H01L25/167 ,  H01L33/50 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A light source having first and second LEDs and a phosphor layer that converts light generated by the first LED is disclosed. The first LED emits light at a first wavelength. The layer of phosphor is illuminated by the first LED, the phosphor being excited by light of the first wavelength to convert light of the first wavelength to a band of wavelengths having wavelengths between the first wavelength and a second wavelength. The second LED emits light at a third wavelength that is greater than the first wavelength. The phosphor is not substantially excited by light of the third wavelength. The combined light from the phosphor, and first and second LEDs is perceived as being white by a human observer.

Abstract translation: 公开了具有第一和第二LED的光源和转换由第一LED产生的光的荧光体层。 第一个LED以第一个波长发光。 荧光体层由第一LED照亮，荧光体被第一波长的光激发，以将第一波长的光转换成波长在第一波长和第二波长之间的波长带。 第二LED以比第一波长大的第三波长发光。 磷光体基本上不被第三波长的光激发。 来自荧光体和第一和第二LED的组合光被人类观察者感知为白色。

公开(公告)号：US07855394B2

公开(公告)日：2010-12-21

申请号：US12487453

申请日：2009-06-18

Applicant: Jianhua Li ,  Rene Helbing ,  David Hum

Inventor： Jianhua Li ,  Rene Helbing ,  David Hum

IPC: H01L33/00

CPC classification number: H01L33/507 ,  F21K9/00 ,  F21K9/64 ,  F21V29/506 ,  F21V29/70 ,  F21V29/83 ,  F21V29/85 ,  H01L25/0753 ,  H01L33/644 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A light source includes a substrate, a light emitting diode on the substrate, and a phosphor layer over the light emitting diode. A plate is on the phosphor layer. An attachment member is coupled to the plate and is configured to conduct heat away from the plate.

Abstract translation: 光源包括衬底，衬底上的发光二极管和发光二极管上方的磷光体层。 荧光层上有一个板。 附接构件联接到板上并且构造成将热量从板传导出去。