OPTICAL COUPLER FOR A LIGHT EMITTING DEVICE WITH ENHANCED OUTPUT BRIGHTNESS
    1.
    发明申请
    OPTICAL COUPLER FOR A LIGHT EMITTING DEVICE WITH ENHANCED OUTPUT BRIGHTNESS 审中-公开
    具有增强输出亮度的发光装置的光耦合器

    公开(公告)号:WO2009025950A1

    公开(公告)日:2009-02-26

    申请号:PCT/US2008/070772

    申请日:2008-07-22

    Inventor: YANG, Yi XU, Li LI, Yi

    CPC classification number: G02B6/4298 G02B6/4214

    Abstract: A light source is described where the light emitted by a solid-state light emitting device such as an LED is coupled into an optical waveguide such as an optical fiber. A highly reflective coupler (reflector) is disposed around the LED and a segment of the waveguide adjacent the LED. Light emitted from the LED that falls outside of the numerical aperture of the waveguide leaks out of the waveguide, but is reflected back to the waveguide by the reflector. The reflected light is re-reflected or scattered by the LED or the substrate the LED is mounted on, and the re-reflected or scattered light that falls within the numerical aperture of the waveguide is coupled into the waveguide. As a result, light coupling efficiency is increased and the output brightness of the light at the other end of the fiber is enhanced.

    Abstract translation: 描述了由诸如LED的固态发光器件发射的光耦合到诸如光纤的光波导中的光源。 在LED周围设置高反射耦合器(反射器)以及邻近LED的波导段。 落在波导的数值孔径之外的LED发出的光从波导泄漏出去,但是被反射器反射回波导。 反射光被LED或LED安装在其上的基板重新反射或散射,并且落入波导的数值孔径内的再反射或散射的光耦合到波导中。 结果,光耦合效率提高,光纤另一端的光的输出亮度提高。

    MULTICOLOR ILLUMINATION DEVICE USING MOVING PLATE WITH WAVELENGTH CONVERSION MATERIALS
    2.
    发明申请
    MULTICOLOR ILLUMINATION DEVICE USING MOVING PLATE WITH WAVELENGTH CONVERSION MATERIALS 审中-公开
    使用具有波长转换材料的移动板的多媒体照明装置

    公开(公告)号:WO2009017992A1

    公开(公告)日:2009-02-05

    申请号:PCT/US2008/070555

    申请日:2008-07-18

    Inventor: LI, Yi XU, Li

    Abstract: A multicolor illumination device using an excitation light source and a multi-segmented moving plate with wavelength conversion materials (e.g. phosphors). The exciting light source is a light emitting diode or a laser diode emitting in the UV and/or blue region. The wavelength conversion materials absorb the excitation light and emit longer wavelength light. Each segment of the moving plate contains a different wavelength conversion material or no wavelength conversion material. The plate is supported to move so that different segments are exposed to the excitation light at different times. The plate may be a wheel or rectangular in shape and rotates or oscillates linearly. When the plate moves, light of different colors is generated sequentially in time by the different wavelength conversion materials in different segments of the plate. The multicolor illumination device may be used in a projector system having a microdisplay imager for image display.

    Abstract translation: 使用激发光源的多色照明装置和具有波长转换材料(例如荧光体)的多分段移动板。 激发光源是在UV和/或蓝色区域中发射的发光二极管或激光二极管。 波长转换材料吸收激发光并发射较长波长的光。 移动板的每个段包含不同的波长转换材料或不具有波长转换材料。 支撑板移动,使得不同的段在不同时间暴露于激发光。 该板可以是轮或矩形的形状并且线性旋转或振荡。 当板移动时,通过板的不同段中的不同波长转换材料在时间上顺序地产生不同颜色的光。 多色照明装置可以用于具有用于图像显示的微型显示器成像器的投影仪系统中。

    HIGH BRIGHTNESS ILLUMINATION DEVICE USING DOUBLE-SIDED EXCITATION OF WAVELENGTH CONVERSION MATERIALS
    3.
    发明申请
    HIGH BRIGHTNESS ILLUMINATION DEVICE USING DOUBLE-SIDED EXCITATION OF WAVELENGTH CONVERSION MATERIALS 审中-公开
    使用波长转换材料双面激励的高亮度照明装置

    公开(公告)号:WO2011127286A1

    公开(公告)日:2011-10-13

    申请号:PCT/US2011/031582

    申请日:2011-04-07

    Inventor: LI, Yi YANG, Yi HU, Fei

    Abstract: An illumination devices using excitation light and a wavelength conversion material to generated converted light for illumination, where the wavelength conversion material is excited by multiple excitation lights from both sides to achieve increased brightness. The excitation lights incident on the two sides of the wavelength conversion material may have the same color or different colors. Light separation structures are provided on both sides of the wavelength conversion material to separate the excitation light and the converted light. Light separation may be based on color difference or etendue difference of the excitation light and converted light. In one particular example, wavelength conversion material is formed on a surface of an LED which acts as the first excitation light source, and a second excitation light is delivered through a light separation structure onto the other side of the wavelength conversion material.

    Abstract translation: 使用激发光和波长转换材料以产生用于照明的转换光的照明装置,其中波长转换材料由两侧的多个激发光激发以实现增加的亮度。 入射到波长转换材料两侧的激发光可以具有相同的颜色或不同的颜色。 在波长转换材料的两侧设置光分离结构,以分离激发光和转换的光。 光分离可以基于激发光和转换光的色差或光度差。 在一个具体示例中,波长转换材料形成在用作第一激发光源的LED的表面上,并且第二激发光通过光分离结构输送到波长转换材料的另一侧。

    HIGH RECYCLING EFFICIENCY SOLID STATE LIGHT SOURCE DEVICE
    4.
    发明申请
    HIGH RECYCLING EFFICIENCY SOLID STATE LIGHT SOURCE DEVICE 审中-公开
    高循环效率固体光源设备

    公开(公告)号:WO2013040584A1

    公开(公告)日:2013-03-21

    申请号:PCT/US2012/055801

    申请日:2012-09-17

    Inventor: HU, Fei LI, Yi YANG, Yi

    Abstract: A light source device includes a LED light source or wavelength conversion material having a near Lambertian light emitting surface. The light source device includes a light recycling system to reflect small-angle lights (lights closer to the normal direction of the light emitting surface) back to the light source, and a collection system for collecting and outputting large-angle lights (lights farther away from the normal direction). The lights reflected by the light recycling system is scattered by the emitting surface in all directions, where the large-angle scattered lights are collected by the light collection system and the small-angle scattered light is reflected by the light recycling system again. A second excitation light source without wavelength conversion material or a second light source with its own wavelength conversion material may be provided, and the second light is directed to the light emitting surface by appropriate optical components.

    Abstract translation: 光源装置包括具有近朗伯光发射表面的LED光源或波长转换材料。 光源装置包括将小角度光(靠近发光面的法线方向的光)反射回光源的光回收系统,以及用于收集和输出大角度灯(更远的光线)的收集系统 从正常方向)。 由光回收系统反射的光被各个方向的发射面散射,其中大角度散射光被光收集系统收集,小角散射光再次被光再循环系统反射。 可以提供没有波长转换材料的第二激发光源或具有其自身的波长转换材料的第二光源,并且第二光通过适当的光学部件被引导到发光表面。

    HIGH EFFICIENT LIGHT COUPLING OF SOLID-STATE LIGHT SOURCE INTO ETENDUE MAINTAINED OPTICAL WAVEGUIDE/FIBER
    5.
    发明申请
    HIGH EFFICIENT LIGHT COUPLING OF SOLID-STATE LIGHT SOURCE INTO ETENDUE MAINTAINED OPTICAL WAVEGUIDE/FIBER 审中-公开
    固体光源的高效光耦合保持光电波导/光纤

    公开(公告)号:WO2006102846A1

    公开(公告)日:2006-10-05

    申请号:PCT/CN2006/000552

    申请日:2006-03-30

    Applicant: LI, Yi XU, Li

    Inventor: LI, Yi XU, Li

    CPC classification number: G02B6/4298 G02B6/04 G02B6/4206 G02B6/4249

    Abstract: A brightness maintaining low loss fiber delivering light system includes solid-state light emitting device, such as but not limited to LED; mounting base assembly for the light emitting device; a low loss light collecting assembly, structure integration assembly; optical waveguide such as fiber; and a fiber combiner in the system with multiple light emitting devices. The light emitting device, light collecting assembly and fiber are bonded directly to each other or by optically index matching transparent material. The etendue of the light emitting device and the fiber are selected so that the light brightness through the system is maintained or even increased. The light collecting assembly may use a high reflective coating surface or the total internal reflection at an interface. The system of multiple fibered light emitting devices output includes each individual brightness maintaining low loss fiber delivering light unit and the combiner of multiple fibers. This combiner can be fibers bundled together or fused together. The fiber core bundle or fused fiber core bundle includes a light concentration assembly as an alternative.

    Abstract translation: 亮度维持低损耗光纤传输光系统包括固态发光器件,例如但不限于LED; 用于发光装置的安装基座组件; 低损耗聚光组件,结构集成组件; 光波导如光纤; 以及具有多个发光器件的系统中的光纤组合器。 发光器件,光收集组件和光纤直接彼此键合或通过光学折射率匹配透明材料。 选择发光器件和光纤的光密度,使得通过系统的光亮度被维持甚至增加。 光收集组件可以使用高反射涂层表面或在界面处的全内反射。 多个光纤发光器件输出的系统包括每个单独的亮度维持低损耗光纤传输光单元和多个光纤的组合器。 该组合器可以是纤维束在一起或融合在一起。 纤维芯束或熔融纤维芯束包括作为替代的光浓度组件。

    BRIGHTNESS ENHANCEMENT METHOD AND APPARATUS OF LIGHT EMITTING DIODES
    6.
    发明申请
    BRIGHTNESS ENHANCEMENT METHOD AND APPARATUS OF LIGHT EMITTING DIODES 审中-公开
    亮度增强方法和发光二极管的设备

    公开(公告)号:WO2008036958A2

    公开(公告)日:2008-03-27

    申请号:PCT/US2007/079254

    申请日:2007-09-22

    Inventor: XU, Li LI, Yi

    CPC classification number: H01L33/44 H01L33/46

    Abstract: A light source with enhanced brightness includes an angle-selective optical filter and a light emitting diode (LED) having a high reflective layer. The angle-selective filter is located on the top surface of emitting diode to pass lights at specified angles. According to one embodiment, the angle-selective filter comprises index-alternating layers. With a reflective polarizer, the light source can produce polarized light with enhanced brightness.

    Abstract translation: 具有增强亮度的光源包括角度选择性滤光器和具有高反射层的发光二极管(LED)。 角度选择滤光片位于发光二极管的顶面,以指定角度通过光。 根据一个实施例,角度选择滤光器包括折射率交替层。 使用反射偏振器,光源可以产生增强的亮度的偏振光。

Patent Agency Ranking