公开(公告)号：US09897284B2

公开(公告)日：2018-02-20

申请号：US13851063

申请日：2013-03-26

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Wu Jiang ,  Zequn Mei

IPC: F21V7/00 ,  F21V9/10 ,  F21V5/04 ,  F21Y115/10 ,  F21Y113/13

CPC classification number: F21V9/08 ,  F21V5/04 ,  F21V7/0091 ,  F21V9/40 ,  F21Y2113/13 ,  F21Y2115/10

Abstract: An LED-based lamp can be made to have a form factor compatible with fixtures designed for MR16 lamps. Such a lamp can have a housing that provides an external electrical connection. Inside the housing is disposed a single emitter structure having a substrate with multiple light-emitting diodes (LEDs) arranged thereon. Different LEDs produce light of different colors (or color temperatures). For example, at least one LED can produce a warm white light, while at least one other LED produces a cool white light and at least one other LED produces a red light. A total-internal-reflection (TIR) lens is positioned to collect light emitted from the single emitter structure and adapted to mix the light from the LEDs to produce a uniform white light. A diffusive coating is applied to a front face of the TIR lens for further color mixing.

公开(公告)号：US09794999B2

公开(公告)日：2017-10-17

申请号：US14244789

申请日：2014-04-03

Applicant: LedEngin, Inc.

Inventor： Kachun Lee ,  Xiantao Yan ,  Zequn Mei

IPC: H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  H05B33/08 ,  H05B37/02

CPC classification number: H05B33/086 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/0827 ,  H05B33/0842 ,  H05B33/0845 ,  H05B33/0857 ,  H05B37/02 ,  Y02B20/346

Abstract: LED-based light source modules can incorporate color tunability and brightness control, allowing a user to select a desired color temperature and/or brightness and to change either or both dynamically. An emitter can include multiple independently addressable groups of LEDs, each emitting light of a different color. By controlling the relative operating current provided to each group, a desired color temperature can be achieved, and by controlling the absolute operating currents, the brightness of the output light can be controlled. Pulse width modulation (PWM) can be used to control the relative and absolute operating currents. Smooth, gradual transitions between brightness and/or color temperature settings in response to changes can be provided.

公开(公告)号：US20130210179A1

公开(公告)日：2013-08-15

申请号：US13842127

申请日：2013-03-15

Applicant: LEDENGIN, INC.

Inventor： Zequn Mei ,  Xianto Yan

IPC: H01L33/50

CPC classification number: H01L33/50 ,  H01L33/505 ,  H01L33/508 ,  H01L2933/0041

Abstract: A method for depositing a layer of phosphor-containing material on a plurality of LED (light-emitting diode) dies on a wafer includes disposing a layer of dry photoresist film over a plurality of LED dies on a wafer, disposing a mask layer over the dry photoresist film, and patterning the dry photoresist film to form a plurality of openings in the dry photoresist film to expose a top surface of each of the LED dies. The method also includes depositing a phosphor-containing material on the exposed top surface of each the LED dies using a screen printing process, and removing the patterned dry photoresist film.

Abstract translation: 在晶片上的多个LED（发光二极管）裸片上沉积含磷光体材料层的方法包括在晶片上的多个LED晶片上设置一层干的光致抗蚀剂膜，在其上设置掩模层 干燥的光致抗蚀剂膜，并且对干燥的光致抗蚀剂膜进行图案化以在干燥的光致抗蚀剂膜中形成多个开口以暴露每个LED管芯的顶表面。 该方法还包括使用丝网印刷工艺在每个LED管芯的暴露的顶表面上沉积含磷光体的材料，以及去除图案化的干燥光刻胶膜。

公开(公告)号：US09528665B2

公开(公告)日：2016-12-27

申请号：US13838812

申请日：2013-03-15

Applicant: LedEngin, Inc.

Inventor： Zequn Mei ,  Truc Phoung Thi Vu

IPC: H01L33/26 ,  F21K99/00 ,  H01L33/50

CPC classification number: F21K9/64 ,  H01L33/504 ,  H01L2933/0041 ,  H05B33/0866

Abstract: A method for fabricating light-emitting devices includes obtaining a plurality of light-emitting diode (LED) chips fabricated to emit blue light and preparing a phosphor-containing material comprising a matrix material having dispersed therein a mixture of a red phosphor and a green phosphor in a fixed ratio to each other. The method also includes disposing different thicknesses of the phosphor-containing material on different ones of the LED chips. The fixed ratio is chosen such that LED chips having different thicknesses of the phosphor-containing material emit light characterized by different points along the Planckian locus in a CIE chromaticity diagram.

Abstract translation: 一种制造发光器件的方法包括获得制造成发射蓝光的多个发光二极管（LED）芯片，并制备含有基体材料的含磷材料，其中分散有红色磷光体和绿色荧光体的混合物 以相互固定的比例。 该方法还包括将不同厚度的含磷光体材料设置在不同的LED芯片上。 选择固定比例使得具有不同厚度的含磷光体材料的LED芯片在CIE色度图中发射沿着普朗克轨迹的不同点的特征。

公开(公告)号：US20140084796A1

公开(公告)日：2014-03-27

申请号：US14091914

申请日：2013-11-27

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee ,  Zequn Mei

IPC: H05B33/08

CPC classification number: H05B33/0869 ,  H05B33/0827 ,  H05B33/086 ,  H05B33/0863

Abstract: The color of an LED-based lamp can be tuned to a desired color or color temperature. The lamp can include two or more independently addressable groups of LEDs associated with different colors or color temperatures and a total-internal-reflection (TIR) color-mixing lens to produce light of a uniform color by mixing the light from the different groups of LEDs. The color of the output light is tuned by controllably dividing an input current among the groups of LEDs. Tuning can be performed once, e.g., during manufacture, and the lamp does not require active feedback components for maintaining color temperature.

Abstract translation: 基于LED的灯的颜色可以调节到所需的颜色或色温。 灯可以包括与不同颜色或色温相关联的两个或更多个可独立寻址的LED组，以及全内反射（TIR）混色透镜，以通过混合来自不同组的LED的光来产生均匀颜色的光 。 通过可控地划分LED组中的输入电流来调节输出光的颜色。 调谐可以执行一次，例如在制造期间，并且灯不需要用于维持色温的主动反馈部件。

公开(公告)号：US09029879B2

公开(公告)日：2015-05-12

申请号：US13714399

申请日：2012-12-13

Applicant: LedEngin, Inc.

Inventor： Zequn Mei ,  Truc Phuong Thi Vu ,  Xiantao Yan

IPC: H01L33/50

CPC classification number: H01L33/50 ,  H01L2933/0041

Abstract: A method for depositing a layer of phosphor-containing material on a plurality of LED dies includes disposing a template with a plurality of openings on an adhesive tape and disposing each of a plurality of LED dies in one of the plurality of openings of the template. The method also includes forming a patterned dry film photoresist layer over the template and the plurality of LED dies. The photoresist layer has a plurality of openings configured to expose a top surface and side surfaces of each of the LED dies. Next, a phosphor-containing material is disposed on the exposed top surface of each the LED dies. The method further includes removing the photoresist layer and the template.

Abstract translation: 用于在多个LED管芯上沉积含磷材料层的方法包括：在胶带上设置具有多个开口的模板，并将多个LED管芯中的每一个设置在模板的多个开口中的一个中。 该方法还包括在模板和多个LED管芯上形成图案化的干膜光致抗蚀剂层。 光致抗蚀剂层具有多个开口，其被配置为暴露每个LED管芯的顶表面和侧表面。 接下来，在每个LED管芯的暴露的顶表面上设置含磷光体的材料。 该方法还包括去除光致抗蚀剂层和模板。

公开(公告)号：US20140300283A1

公开(公告)日：2014-10-09

申请号：US14244787

申请日：2014-04-03

Applicant: LedEngin, Inc.

Inventor： Kachun Lee ,  Xiantao Yan ,  Zequn Mei

IPC: H05B33/08

CPC classification number: H05B33/086 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/0827 ,  H05B33/0842 ,  H05B33/0845 ,  H05B33/0857 ,  H05B37/02 ,  Y02B20/346

Abstract: LED-based light source modules can incorporate color tunability and brightness control, allowing a user to select a desired color temperature and/or brightness and to change either or both dynamically. An emitter can include multiple independently addressable groups of LEDs, each emitting light of a different color. By controlling the relative operating current provided to each group, a desired color temperature can be achieved, and by controlling the absolute operating currents, the brightness of the output light can be controlled. Pulse width modulation (PWM) can be used to control the relative and absolute operating currents. Smooth, gradual transitions between brightness and/or color temperature settings in response to changes can be provided.

Abstract translation: 基于LED的光源模块可以包含颜色可调性和亮度控制，允许用户选择所需的色温和/或亮度，并且动态地改变其中一种或两种。 发射器可以包括多个可独立寻址的LED组，每组发射不同颜色的光。 通过控制提供给每个组的相对工作电流，可以实现期望的色温，并且通过控制绝对工作电流，可以控制输出光的亮度。 脉冲宽度调制（PWM）可用于控制相对和绝对工作电流。 可以提供响应于变化的亮度和/或色温设置之间的平滑，逐渐的过渡。

公开(公告)号：US20140264402A1

公开(公告)日：2014-09-18

申请号：US13838812

申请日：2013-03-15

Applicant: LEDENGIN, INC.

Inventor： Zequn Mei ,  Truc Phoung Thi Vu

IPC: H01L33/26

CPC classification number: F21K9/64 ,  H01L33/504 ,  H01L2933/0041 ,  H05B33/0866

Abstract: A method for fabricating light-emitting devices includes obtaining a plurality of light-emitting diode (LED) chips fabricated to emit blue light and preparing a phosphor-containing material comprising a matrix material having dispersed therein a mixture of a red phosphor and a green phosphor in a fixed ratio to each other. The method also includes disposing different thicknesses of the phosphor-containing material on different ones of the LED chips. The fixed ratio is chosen such that LED chips having different thicknesses of the phosphor-containing material emit light characterized by different points along the Planckian locus in a CIE chromaticity diagram.

Abstract translation: 一种制造发光器件的方法包括获得制造成发射蓝光的多个发光二极管（LED）芯片，并制备含有基体材料的含磷材料，其中分散有红色磷光体和绿色荧光体的混合物 以相互固定的比例。 该方法还包括将不同厚度的含磷光体材料设置在不同的LED芯片上。 选择固定比例使得具有不同厚度的含磷光体材料的LED芯片在CIE色度图中发射沿着普朗克轨迹的不同点的特征。

公开(公告)号：US08773024B2

公开(公告)日：2014-07-08

申请号：US14091914

申请日：2013-11-27

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee ,  Zequn Mei

IPC: H05B37/02

CPC classification number: H05B33/0869 ,  H05B33/0827 ,  H05B33/086 ,  H05B33/0863

Abstract: The color of an LED-based lamp can be tuned to a desired color or color temperature. The lamp can include two or more independently addressable groups of LEDs associated with different colors or color temperatures and a total-internal-reflection (TIR) color-mixing lens to produce light of a uniform color by mixing the light from the different groups of LEDs. The color of the output light is tuned by controllably dividing an input current among the groups of LEDs. Tuning can be performed once, e.g., during manufacture, and the lamp does not require active feedback components for maintaining color temperature.

Abstract translation: 基于LED的灯的颜色可以调节到所需的颜色或色温。 灯可以包括与不同颜色或色温相关联的两个或更多个可独立寻址的LED组，以及全内反射（TIR）混色透镜，以通过混合来自不同组的LED的光来产生均匀颜色的光 。 通过可控地划分LED组中的输入电流来调节输出光的颜色。 调谐可以执行一次，例如在制造期间，并且灯不需要用于维持色温的主动反馈部件。

公开(公告)号：US09560713B2

公开(公告)日：2017-01-31

申请号：US14244787

申请日：2014-04-03

Applicant: LedEngin, Inc.

Inventor： Kachun Lee ,  Xiantao Yan ,  Zequn Mei

IPC: H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  H05B33/08 ,  H05B37/02

CPC classification number: H05B33/086 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/0827 ,  H05B33/0842 ,  H05B33/0845 ,  H05B33/0857 ,  H05B37/02 ,  Y02B20/346

Abstract: LED-based light source modules can incorporate color tunability and brightness control, allowing a user to select a desired color temperature and/or brightness and to change either or both dynamically. An emitter can include multiple independently addressable groups of LEDs, each emitting light of a different color. By controlling the relative operating current provided to each group, a desired color temperature can be achieved, and by controlling the absolute operating currents, the brightness of the output light can be controlled. Pulse width modulation (PWM) can be used to control the relative and absolute operating currents. Smooth, gradual transitions between brightness and/or color temperature settings in response to changes can be provided.

Abstract translation: 基于LED的光源模块可以包含颜色可调性和亮度控制，允许用户选择所需的色温和/或亮度，并且动态地改变其中一种或两种。 发射器可以包括多个可独立寻址的LED组，每组发射不同颜色的光。 通过控制提供给每个组的相对工作电流，可以实现期望的色温，并且通过控制绝对工作电流，可以控制输出光的亮度。 脉冲宽度调制（PWM）可用于控制相对和绝对工作电流。 可以提供响应于变化的亮度和/或色温设置之间的平滑，逐渐的过渡。