专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

US20080252197A1 Color temperature tunable white light source 有权
标题翻译：色温可调白光源
公开(公告)号：US20080252197A1
公开(公告)日：2008-10-16
申请号：US11787107
申请日：2007-04-13
申请人： Yi-Qun Li , Yi Dong , Xiofeng Xu
发明人： Yi-Qun Li , Yi Dong , Xiofeng Xu
IPC分类号： H01J1/62 , H01J61/38
CPC分类号： H05B33/086 , F21K9/00 , H05B33/0818 , H05B33/0827
摘要： A color temperature tunable white light source comprises: first and second LED arrangements operable to emit light of first and second wavelength range respectively that are configured such that their combined light output, which comprises light generated by the source, appears white in color. One or both LED arrangements comprises a phosphor provided remote to an associated LED operable to generate excitation radiation and to irradiate the phosphor such that it emits light of a different wavelength range, wherein the light emitted by the LED arrangement comprises the combined light from the LED and phosphor. The color temperature of output white light is tunable by controlling the relative light outputs of the LED arrangements by for example controlling the relative magnitude of the drive currents of the LEDs or a duty cycle of a pulse width modulated drive current.
摘要翻译：色温可调白光源包括：第一和第二LED装置，其可操作以分别发射第一和第二波长范围的光，所述第一和第二波长范围被配置为使得它们的组合光输出（其包括源产生的光）看起来是白色的。一个或两个LED布置包括荧光体，远离相关联的LED，其可操作以产生激发辐射并照射磷光体，使得其发射不同波长范围的光，其中由LED装置发射的光包括来自LED的组合光和磷光体。通过例如控制LED的驱动电流的相对幅度或脉冲宽度调制的驱动电流的占空比来控制LED配置的相对光输出，可以调节输出白光的色温。

52. 发明授权

US08883528B2 Methods of producing light emitting device with phosphor wavelength conversion 有权
标题翻译：用磷光体波长转换制造发光器件的方法
公开(公告)号：US08883528B2
公开(公告)日：2014-11-11
申请号：US12239357
申请日：2008-09-26
申请人： Yi-Qun Li , Yi Dong
发明人： Yi-Qun Li , Yi Dong
IPC分类号： H01L21/00 , H01L33/44 , B29C39/02 , B29C39/10 , H01L33/50 , B29C39/00 , H01L33/00 , H01J1/62 , H01J63/04 , B29L11/00
CPC分类号： H01L33/505 , B29C39/006 , B29C39/025 , B29C39/10 , B29L2011/00 , H01L33/44 , H01L2224/32245 , H01L2224/48091 , H01L2224/48247 , H01L2224/49107 , H01L2224/73265 , H01L2224/8592 , H01L2924/181 , H01L2933/0041 , H01L2924/00014 , H01L2924/00 , H01L2924/00012
摘要： A method of fabricating a light emitting device comprises: mounting a light emitting diode chip in a package; heating the light emitting diode chip package assembly to a pre-selected temperature; and dispensing a pre-selected volume of a mixture of at least one phosphor and a light transmissive thermosetting material (silicone, epoxy) on a surface of the chip. The pre-selected volume and temperature are selected such that the phosphor/material mixture flows over the entire light emitting surface of the chip before curing. In an alternative method, using a light transmissive UV curable material such as an epoxy, the phosphor/material mixture is irradiated with UV radiation after a pre-selected time to cure the material. The pre-selected volume and pre-selected time are selected such that the phosphor/material mixture flows over at least the light emitting surface of the chip before curing.
摘要翻译：一种制造发光器件的方法包括：将发光二极管芯片安装在封装中; 将发光二极管芯片封装组件加热到预选温度; 以及在所述芯片的表面上分配预先选定体积的至少一种荧光体和透光热固性材料（硅树脂，环氧树脂）的混合物。选择预选择的体积和温度使得磷光体/材料混合物在固化之前流过芯片的整个发光表面。在替代方法中，使用透光的UV可固化材料如环氧树脂，在预先选定的时间之后，用紫外线辐射照射磷光体/材料混合物以固化材料。选择预选择的体积和预先选择的时间，使得磷光体/材料混合物在固化之前至少流过芯片的发光表面。

53. 发明授权

US08203260B2 Color temperature tunable white light source 有权
标题翻译：色温可调白光源
公开(公告)号：US08203260B2
公开(公告)日：2012-06-19
申请号：US11787107
申请日：2007-04-13
申请人： Yi-Qun Li , Yi Dong , Xiaofeng Xu
发明人： Yi-Qun Li , Yi Dong , Xiaofeng Xu
IPC分类号： H01J1/62
CPC分类号： H05B33/086 , F21K9/00 , H05B33/0818 , H05B33/0827
摘要： A color temperature tunable white light source comprises: first and second LED arrangements operable to emit light of first and second wavelength range respectively that are configured such that their combined light output, which comprises light generated by the source, appears white in color. One or both LED arrangements comprises a phosphor provided remote to an associated LED operable to generate excitation radiation and to irradiate the phosphor such that it emits light of a different wavelength range, wherein the light emitted by the LED arrangement comprises the combined light from the LED and phosphor. The color temperature of output white light is tunable by controlling the relative light outputs of the LED arrangements by for example controlling the relative magnitude of the drive currents of the LEDs or a duty cycle of a pulse width modulated drive current.
摘要翻译：色温可调白光源包括：第一和第二LED装置，其可操作以分别发射第一和第二波长范围的光，所述第一和第二波长范围被配置为使得它们的组合光输出（其包括源产生的光）看起来是白色的。一个或两个LED布置包括荧光体，远离相关联的LED，其可操作以产生激发辐射并照射磷光体，使得其发射不同波长范围的光，其中由LED装置发射的光包括来自LED的组合光和磷光体。通过例如控制LED的驱动电流的相对幅度或脉冲宽度调制的驱动电流的占空比来控制LED配置的相对光输出，可以调节输出白光的色温。

54. 发明授权

US07737636B2 LED assembly with an LED and adjacent lens and method of making same 有权
标题翻译：具有LED和相邻透镜的LED组件及其制造方法
公开(公告)号：US07737636B2
公开(公告)日：2010-06-15
申请号：US11800977
申请日：2007-05-07
申请人： Yi-Qun Li , Yi Dong , Wei Shan
发明人： Yi-Qun Li , Yi Dong , Wei Shan
IPC分类号： H01J1/62
CPC分类号： H01L33/54 , H01L25/0753 , H01L33/50 , H01L2924/0002 , H01L2924/00
摘要： An LED assembly having an LED and a lens disposed adjacent to a light emitting surface of the LED. The area of cross-section of the lens projected onto the light emitting surface of the LED is substantially equal to or less than the area of the LED's light emitting surface. The light emitting device can comprise an array of LEDs and an array of lenses, in which at least one lens is associated with each member of the LED array and wherein the area of a cross-section of each lens projected onto the light emitting surface of its associated LED is substantially equal to or less than the area of the LED's light emitting surface.
摘要翻译：一种具有LED和与LED的发光表面相邻设置的透镜的LED组件。投影到LED的发光表面上的透镜的横截面的面积基本上等于或小于LED的发光面的面积。发光器件可以包括LED阵列和透镜阵列，其中至少一个透镜与LED阵列的每个构件相关联，并且其中每个透镜的横截面的面积投影到发光表面上其相关联的LED基本上等于或小于LED的发光表面的面积。

55. 发明申请

US20100052560A1 COLOR TUNABLE LIGHT SOURCE 审中-公开
标题翻译：彩色可调光源
公开(公告)号：US20100052560A1
公开(公告)日：2010-03-04
申请号：US12617575
申请日：2009-11-12
申请人： Yi-Qun Li , Yi Dong , Xiaofeng Xu , Ian Collier
发明人： Yi-Qun Li , Yi Dong , Xiaofeng Xu , Ian Collier
IPC分类号： H05B41/16
CPC分类号： H05B33/086 , F21K9/64 , H05B33/0818
摘要： A color tunable light source comprising: a first LED arrangement operable to emit light of a first color and a second LED arrangement operable to emit light of a second color, the LED arrangements being configured such that their combined light comprises the output of the source and control means operable to control the color of light emitted by the source by controlling the relative light outputs of the two LED arrangements wherein the control means is operable to dynamically switch the outputs of the LED arrangements and the color is tunable by controlling a duty cycle of the drive current. One or both LED arrangements can comprise at least one phosphor and an associated LED that is operable to irradiate the phosphor with excitation radiation of a first wavelength range such that the phosphor emits light of a different wavelength range.
摘要翻译：一种颜色可调光源，包括：可操作以发射第一颜色的光的第一LED布置和可操作以发射第二颜色的光的第二LED布置，所述LED布置被配置为使得它们的组合光包括源的输出和控制装置可操作以通过控制两个LED装置的相对光输出来控制由源发射的光的颜色，其中控制装置可操作地动态地切换LED装置的输出，并且颜色可通过控制LED的占空比来调节驱动电流。一个或两个LED布置可以包括至少一个磷光体和相关联的LED，其可操作以用第一波长范围的激发辐射照射荧光体，使得荧光体发射不同波长范围的光。

56. 发明申请

US20080151143A1 Light emitting diode based backlighting for color liquid crystal displays 审中-公开
标题翻译：用于彩色液晶显示器的基于发光二极管的背光
公开(公告)号：US20080151143A1
公开(公告)日：2008-06-26
申请号：US11974927
申请日：2007-10-15
申请人： Yi-Qun Li , Gordon Liu , Yi Dong
发明人： Yi-Qun Li , Gordon Liu , Yi Dong
IPC分类号： G02F1/13357 , H05B33/00
CPC分类号： H01L25/0753 , G02F1/133603 , G02F1/133609 , G02F2001/133614 , H01L33/50 , H01L2224/48091 , H01L2224/48247 , H01L2924/00014
摘要： A liquid crystal display backlight comprises: at least one blue light emitting diode (LED) operable to contribute blue light to white light generated by the backlight; a phosphor material which absorbs a portion of the blue light and emits green light which contributes green light to the white light generated by the backlight; and at least one red LED operable to contribute red light to the white light generated by the backlight. In one arrangement the red LED is replaced with a second phosphor material which absorbs a portion of the blue light and emits red light which contributes to the white light generated by the backlight. Many packaging configurations are possible.
摘要翻译：液晶显示器背光源包括：至少一个蓝色发光二极管（LED），其可操作以将蓝色光提供给由背光产生的白光; 吸收蓝色光的一部分并发出对由背光产生的白色光产生绿色光的绿色光的荧光体材料; 以及至少一个红色LED，其可操作以将红色光提供给由背光产生的白光。在一种布置中，红色LED被第二种磷光体材料代替，第二种磷光体材料吸收蓝色光的一部分并发出有助于由背光产生的白光的红色光。许多包装配置是可能的。

57. 发明申请

US20080111141A1 Light emitting diode assembly and method of fabrication 有权
标题翻译：发光二极管组件及其制造方法
公开(公告)号：US20080111141A1
公开(公告)日：2008-05-15
申请号：US11800977
申请日：2007-05-07
申请人： Yi-Qun Li , Yi Dong , Wei Shan
发明人： Yi-Qun Li , Yi Dong , Wei Shan
IPC分类号： H01L33/00 , H01L21/00
CPC分类号： H01L33/54 , H01L25/0753 , H01L33/50 , H01L2924/0002 , H01L2924/00
摘要： An LED assembly comprises an LED and a lens disposed adjacent to a light emitting surface of the LED. The area of cross-section of the lens projected onto the light emitting surface of the LED is substantially equal to or less than the area of the LED's light emitting surface. The light emitting device can comprise an array of LEDs and an array of lenses, in which at least one lens is associated with each member of the LED array and wherein the area of a cross-section of each lens projected onto the light emitting surface of its associated LED is substantially equal to or less than the area of the LED's light emitting surface.
摘要翻译： LED组件包括LED和与LED的发光表面相邻设置的透镜。投影到LED的发光表面上的透镜的横截面的面积基本上等于或小于LED的发光面的面积。发光器件可以包括LED阵列和透镜阵列，其中至少一个透镜与LED阵列的每个构件相关联，并且其中每个透镜的横截面的面积投影到发光表面上其相关联的LED基本上等于或小于LED的发光表面的面积。

58. 发明授权

US09410083B2 Phosphor composition with self-adjusting chromaticity 有权
标题翻译：具有自调色度的荧光粉组合物
公开(公告)号：US09410083B2
公开(公告)日：2016-08-09
申请号：US12910644
申请日：2010-10-22
申请人： Yi-Qun Li , Yi Dong
发明人： Yi-Qun Li , Yi Dong
IPC分类号： H01J63/04 , C09K11/77 , C09K11/88 , H01L33/50
CPC分类号： C09K11/7734 , C09K11/7731 , C09K11/7774 , C09K11/883 , H01L33/504
摘要： Disclosed herein are “smart” phosphor compositions capable of regulating the chromaticity of their emission to substantially constant values even with variations in the excitation radiation they receive to induce photoluminescence. One phosphor of the smart composition demonstrates an increase in emission intensity increases as the wavelength of the excitation radiation is increased. The other phosphor shows a decrease in emission intensity with increasing excitation wavelength. Constant chromaticity in this context is defined as a change in CIE x or y coordinate of less than about five percent over a 10 nm range of excitation wavelengths.
摘要翻译：这里公开的是“智能”荧光粉组合物，其能够将其发射的色度调节到基本恒定的值，即使它们接收的激发辐射的变化也可以诱导光致发光。智能组合物的一种荧光体显示随着激发辐射的波长增加，发射强度增加。另一种荧光体显示随着激发波长的增加发射强度的降低。在此上下文中的恒定色度被定义为在10nm激发波长范围内CIE x或y坐标的变化小于约百分之五。

59. 发明授权

US08302336B2 Light emitting sign and display surface therefor 有权
标题翻译：发光标志和显示表面
公开(公告)号：US08302336B2
公开(公告)日：2012-11-06
申请号：US13102833
申请日：2011-05-06
申请人： Yi-Qun Li , Yi Dong , James Caruso , Charles Edwards
发明人： Yi-Qun Li , Yi Dong , James Caruso , Charles Edwards
IPC分类号： G09F13/04
CPC分类号： G09F13/22 , G09F13/0404 , G09F13/20
摘要： A light emitting sign comprising a light box housing a plurality of blue LEDs operable to generate blue excitation light and a light emitting display surface overlaying the light box opening. The light emitting display surface comprises a light transmissive substrate configured as a light transmissive window such that light generated by the sign is emitted from the substrate and a phosphor overlaying at least a portion of one face of the substrate. The phosphor is configured to absorb at least a portion of the blue light generated by the LEDs and, in response, to emit light of a selected color.
摘要翻译：一种发光标志，包括容纳可操作以产生蓝色激发光的多个蓝色LED的灯箱和覆盖所述灯箱开口的发光显示表面。发光显示表面包括被配置为透光窗的透光基板，使得由符号产生的光从基板发射，并且荧光体覆盖基板的一个面的至少一部分。磷光体被配置为吸收由LED产生的蓝光的至少一部分，并且作为响应，以发射所选颜色的光。

60. 发明申请

US20110209367A1 LIGHT EMITTING SIGN AND DISPLAY SURFACE THEREFOR 有权
标题翻译：发光标志及其显示表面
公开(公告)号：US20110209367A1
公开(公告)日：2011-09-01
申请号：US13102898
申请日：2011-05-06
申请人： Yi-Qun Li , Yi Dong , James Caruso , Charles O. Edwards
发明人： Yi-Qun Li , Yi Dong , James Caruso , Charles O. Edwards
IPC分类号： G09F13/20 , G09F13/16
CPC分类号： G09F13/22 , G09F13/0404 , G09F13/20
摘要： A light emitting sign comprising a plurality of blue LEDs operable to generate blue excitation light and a light emitting display surface comprising a light transmissive substrate and at least one phosphor overlaying at least a portion of one face of the substrate. The phosphor is configured to absorb at least a portion of the blue light generated by the LEDs and, in response, to emit light of a selected color other than blue. Regions of the display surface intended to generate blue light do not include the phosphor.
摘要翻译：包括可操作以产生蓝色激发光的多个蓝色LED的发光标志和包括透光基板和覆盖基板的一个面的至少一部分的至少一个荧光体的发光显示表面。磷光体被配置为吸收由LED产生的蓝光的至少一部分，并且作为响应，发射除了蓝色之外的所选颜色的光。用于产生蓝光的显示面的区域不包括荧光体。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式