Backlight for a color LCD
    1.
    发明授权
    Backlight for a color LCD 失效
    背光用于彩色LCD

    公开(公告)号:US06791636B2

    公开(公告)日:2004-09-14

    申请号:US09854014

    申请日:2001-05-10

    IPC分类号: G02F11335

    摘要: In one embodiment, a color, transmissive LCD uses red, green, and blue LEDs as the light source. The red LED is optically coupled to a first edge of a rectangular light guide; the green LED is optically coupled to a second edge of the light guide; and the blue LED is optically coupled to a third edge of the light guide. Three sets of deformities in the light guide selectively direct the R, G, and B light out of the front surface of the light guide. The R, G, and B LEDs are constantly on and there is no color filtering. In another embodiment, a blue light LED is optically coupled to one or more edges of a light guide, and phosphor strips are placed on a surface of the light guide coinciding with the red and green pixel columns. Deformities below the red and green phosphor strips and below the blue pixel areas direct blue light to the backs of the phosphor strips and to the blue pixel areas. If an ultraviolet light LED is used, phosphor strips for the blue pixel areas would also be used.

    摘要翻译: 在一个实施例中,彩色透射LCD使用红色,绿色和蓝色LED作为光源。 红色LED光耦合到矩形光导的第一边缘; 绿色LED光耦合到光导的第二边缘; 并且蓝色LED光学耦合到光导的第三边缘。 光导体中的三组畸形将R,G和B光选择性地引导出光导的前表面。 R,G和B LED不断打开,没有颜色过滤。 在另一个实施例中,蓝光LED光耦合到光导的一个或多个边缘,并且磷光体条放置在与红色和绿色像素列重合的光导的表面上。 红色和绿色荧光带下方的蓝色像素区域之下的变形将蓝色光引导到荧光带的背面和蓝色像素区域。 如果使用紫外光LED,也将使用用于蓝色像素区域的荧光体条。

    Color isolated backlight for an LCD
    2.
    发明授权
    Color isolated backlight for an LCD 失效
    彩色隔离背光用于LCD

    公开(公告)号:US06768525B2

    公开(公告)日:2004-07-27

    申请号:US09728883

    申请日:2000-12-01

    IPC分类号: G02F11335

    CPC分类号: G02F1/133621 Y10S385/901

    摘要: A color, transmissive LCD is described herein which uses red, green, and blue LEDs as the light source. The R, G, and B LEDs are coupled to separate light guides, one light guide for each color. These light guides may take the form of three overlying plastic or glass sheets. In another embodiment, thin fiber optic cables arranged parallel to each other on a supporting surface are used as the light guides, and each fiber optic cable is optically coupled to only one R, G, or B LED in a repeating pattern. The light guides contain deformities to emit light coinciding with the positions of the red, green, and blue pixels. The R, G, and B LEDs are constantly on, and there is no color filtering.

    摘要翻译: 本文描述了使用红色,绿色和蓝色LED作为光源的彩色透射型LCD。 R,G和B LED耦合到分离的光导,每个颜色的一个光导。 这些导光板可以采用三层覆盖塑料或玻璃板的形式。 在另一个实施例中,使用在支撑表面上彼此平行布置的细光纤电缆作为光导,并且每个光纤电缆以重复图案光耦合到仅一个R,G或B LED。 光导包含变形以发射与红色,绿色和蓝色像素的位置一致的光。 R,G和B LED不断打开,没有颜色过滤。

    LED-based illumination device with color converting surfaces
    4.
    发明授权
    LED-based illumination device with color converting surfaces 有权
    具有颜色转换表面的基于LED的照明装置

    公开(公告)号:US08449129B2

    公开(公告)日:2013-05-28

    申请号:US13560827

    申请日:2012-07-27

    IPC分类号: F21V9/16

    摘要: An illumination module includes a color conversion cavity with a first interior surface having a first wavelength converting material and a second interior surface having a second wavelength converting material. A first LED is configured to receive a first current and to emit light that preferentially illuminates the first interior surface. A second LED is configured to receive a second current and emit light that preferentially illuminates the second interior surface. The first current and the second current are selectable to achieve a range of correlated color temperature (CCT) of light output by the LED based illumination device.

    摘要翻译: 照明模块包括具有第一内表面的颜色转换腔,其具有第一波长转换材料和具有第二波长转换材料的第二内表面。 第一LED被配置为接收第一电流并发射优先照亮第一内表面的光。 第二LED被配置为接收第二电流并发射优先照亮第二内表面的光。 可以选择第一电流和第二电流来实现基于LED的照明装置的光输出的相关色温(CCT)的范围。

    LED BASED ILLUMINATION MODULE WITH A LENS ELEMENT
    5.
    发明申请
    LED BASED ILLUMINATION MODULE WITH A LENS ELEMENT 审中-公开
    基于LED的LED照明模块与镜头元件

    公开(公告)号:US20120327649A1

    公开(公告)日:2012-12-27

    申请号:US13527446

    申请日:2012-06-19

    IPC分类号: F21V13/02 F21V5/04

    摘要: An illumination module includes a plurality of Light Emitting Diodes (LEDs). The illumination module includes a reflective mask cover plate disposed over the LEDs. The reflective mask includes a patterned reflective layer with an opening area aligned with the active die area of the LEDs. The reflective mask may be a patterned reflective layer disposed between the plurality of LEDs and a lens element, wherein a void in the patterned reflective layer is filled with a material that mechanically and optically couples the plurality of LEDs and the lens element. The illumination module may include a color conversion cavity that envelopes a lens element that may include a dichroic filter. The lens element may have different surface profiles over different groups of LEDs.

    摘要翻译: 照明模块包括多个发光二极管(LED)。 照明模块包括设置在LED上的反射掩模盖板。 反射掩模包括具有与LED的有源管芯区域对准的开口面积的图案化反射层。 反射掩模可以是设置在多个LED和透镜元件之间的图案化反射层,其中图案化反射层中的空隙填充有机械地和光耦合多个LED和透镜元件的材料。 照明模块可以包括包围可以包括二向色滤光器的透镜元件的颜色转换腔。 透镜元件可以在不同的LED组上具有不同的表面轮廓。

    LED-BASED ILLUMINATION MODULES WITH THIN COLOR CONVERTING LAYERS
    7.
    发明申请
    LED-BASED ILLUMINATION MODULES WITH THIN COLOR CONVERTING LAYERS 有权
    基于LED的照明模块与薄彩色转换层

    公开(公告)号:US20120087124A1

    公开(公告)日:2012-04-12

    申请号:US13328974

    申请日:2011-12-16

    IPC分类号: F21V9/16

    摘要: An illumination module includes a plurality of Light Emitting Diodes (LEDs). The illumination module may include a reflective color converting element with a PTFE layer and a color converting layer fixed to the PTFE layer. The color converting layer includes phosphor particles embedded in a polymer matrix and has a thickness that is less than five times an average diameter of the phosphor particles. The illumination module may include a transmissive color converting element. The color converting elements may be produced by mixing a polymer binder with a solvent and phosphor particles to form a homogeneous suspension of the phosphor particles. The homogeneous suspension is applied to a surface to form an uncured color converting layer, which is heated to vaporize the solvent. The cured color converting layer includes the phosphor particles suspended in the polymer binder

    摘要翻译: 照明模块包括多个发光二极管(LED)。 照明模块可以包括具有PTFE层和固定在PTFE层上的颜色转换层的反射颜色转换元件。 颜色转换层包括嵌入聚合物基质中的荧光体颗粒,其厚度小于荧光体颗粒的平均直径的5倍。 照明模块可以包括透射颜色转换元件。 可以通过将聚合物粘合剂与溶剂和荧光体颗粒混合以形成荧光体颗粒的均匀悬浮液来制备颜色转换元件。 将均匀的悬浮液施加到表面以形成未固化的颜色转换层,其被加热以蒸发溶剂。 固化的颜色转换层包括悬浮在聚合物粘合剂中的荧光体颗粒

    Solid state illumination device
    8.
    发明授权
    Solid state illumination device 有权
    固态照明装置

    公开(公告)号:US08104922B2

    公开(公告)日:2012-01-31

    申请号:US12848151

    申请日:2010-07-31

    IPC分类号: F21V1/00

    摘要: A solid state illumination device includes a semiconductor light emitter mounted on a base and surrounded by sidewalls, e.g., in a circular, elliptical, triangular, rectangular or other appropriate arrangement, to define a chamber. A top element, which may be reflective, may be coupled to the sidewalls to further define the chamber. The light produced by the semiconductor light emitter is emitted through the sidewalls of the chamber. The sidewalls and/or top element may include wavelength converting material, for example, as a plurality of dots on the surfaces. An adjustable wavelength converting element may be used within the chamber, with the adjustable wavelength converting element being configured to adjust the surface area that is exposed to the light emitted by the semiconductor light emitter in the chamber to alter an optical property of the chamber.

    摘要翻译: 固态照明装置包括安装在基座上并被诸如圆形,椭圆形,三角形,矩形或其它适当布置的侧壁包围的半导体光发射器,以限定腔室。 可以是反射的顶部元件可以耦合到侧壁以进一步限定腔室。 由半导体光发射器产生的光通过室的侧壁发射。 侧壁和/或顶部元件可以包括波长转换材料,例如表面上的多个点。 可调节的波长转换元件可以在腔室内使用,可调节波长转换元件被配置为调节暴露于由腔室中的半导体光发射器发射的光的表面积,以改变腔室的光学性质。

    LED-BASED ILLUMINATION MODULES WITH PTFE COLOR CONVERTING SURFACES
    9.
    发明申请
    LED-BASED ILLUMINATION MODULES WITH PTFE COLOR CONVERTING SURFACES 有权
    基于LED的LED照明模块与PTFE颜色转换表面

    公开(公告)号:US20120002396A1

    公开(公告)日:2012-01-05

    申请号:US13223223

    申请日:2011-08-31

    IPC分类号: F21V9/16

    摘要: An illumination module includes a plurality of Light Emitting Diodes (LEDs) and a light conversion sub-assembly mounted near but physically separated from the LEDs. The light conversion sub-assembly includes at least a portion that is a polytetrafluoroethylene (PTFE) material that also includes a wavelength converting material. Despite being less reflective than other materials that may be used in the light conversion sub-assembly, the PTFE material unexpectedly produces an increase in luminous output, compared to other more reflective materials, when the PTFE material includes a wavelength converting material.

    摘要翻译: 照明模块包括多个发光二极管(LED)和安装在LED附近但物理分离的光转换子组件。 光转换子组件至少包括一部分,其还包括波长转换材料的聚四氟乙烯(PTFE)材料。 尽管与其他可能用于光转换子组件的材料相比,反射性较差,但是当PTFE材料包括波​​长转换材料时,与其他更多的反射材料相比,PTFE材料意外地增加了发光输出。

    LED-BASED ILLUMINATION MODULE ATTACHMENT TO A LIGHT FIXTURE
    10.
    发明申请
    LED-BASED ILLUMINATION MODULE ATTACHMENT TO A LIGHT FIXTURE 有权
    基于LED的照明模块连接到灯具

    公开(公告)号:US20110194285A1

    公开(公告)日:2011-08-11

    申请号:US13088710

    申请日:2011-04-18

    IPC分类号: F21S4/00

    摘要: A mounting collar on a light fixture provides a compressive force between the illumination module and a light fixture. For example, a mounting collar that is fixed to the light fixture may engage with an illumination module to deform elastic mounting members on the illumination module to generate the compressive force. The mounting collar may include tapered features on first and second members that are moveable with respect to each other and that when engaged generate the compressive force. The mounting collar may include elastic mounting members on first and second members that move with respect to each other, wherein the movement deforms the elastic mounting members to generate the compressive force. The mounting collar may include an elastic member, wherein movement movement of the mounting collar relative to a light fixture deforms the elastic member to generate the compressive force.

    摘要翻译: 灯具上的安装环提供照明模块和灯具之间的压缩力。 例如,固定到灯具的安装环可以与照明模块接合,以使照明模块上的弹性安装构件变形以产生压缩力。 安装套环可以包括可在第一和第二构件上相对于彼此移动的锥形特征,并且当接合时产生压缩力。 安装套环可以包括相对于彼此移动的第一和第二构件上的弹性安装构件,其中运动使弹性安装构件变形以产生压缩力。 安装套环可以包括弹性构件,其中安装环相对于灯具的移动运动使弹性构件变形以产生压缩力。