Phosphor reflector assembly for remote phosphor LED device
    105.
    发明授权
    Phosphor reflector assembly for remote phosphor LED device 有权
    用于远程荧光粉LED装置的荧光体反射器组件

    公开(公告)号:US09028083B2

    公开(公告)日:2015-05-12

    申请号:US13991073

    申请日:2011-12-19

    摘要: Phosphor assemblies include a phosphor layer and a broadband reflector attached to the phosphor layer. The phosphor assembly can be combined with a short wavelength (e.g. blue) emitting LED and other optional components to provide a remote phosphor lighting system. At least some LED light passes through the phosphor layer before reaching the broadband reflector. The broadband reflector provides high reflectivity for both the LED light and the longer wavelength phosphor light. The degree of transparency or of transmission of the phosphor layer to LED light can be tailored to increase the broadband light output of the lighting system. Such increase can actually be achieved by decreasing the amount of phosphor used in the phosphor layer. The single pass transmission T of the phosphor layer to the LED light may be from 30 to 65%, and the reflectivity of the broadband reflector may be at least 90, 94, or 98%.

    摘要翻译: 荧光体组件包括磷光体层和连接到磷光体层的宽带反射器。 荧光体组件可以与短波长(例如蓝色)发射的LED和其它可选组件组合以提供远程磷光体照明系统。 至少一些LED光在到达宽带反射器之前通过荧光体层。 宽带反射器为LED灯和较长波长荧光灯提供高反射率。 可以调整荧光体层对LED光的透明度或透射度,以增加照明系统的宽带光输出。 这种增加实际上可以通过减少荧光体层中使用的荧光体的量来实现。 荧光体层对LED光的单程透射率T可以为30〜65%,宽带反射体的反射率可以为90〜94%〜98%。

    REMOTE PHOSPHOR LED DEVICE WITH BROADBAND OUTPUT AND CONTROLLABLE COLOR
    106.
    发明申请
    REMOTE PHOSPHOR LED DEVICE WITH BROADBAND OUTPUT AND CONTROLLABLE COLOR 有权
    具有宽带输出和可控彩色的远程磷光LED装置

    公开(公告)号:US20130264947A1

    公开(公告)日:2013-10-10

    申请号:US13991062

    申请日:2011-12-19

    IPC分类号: H01L33/50 H05B33/08

    摘要: A broadband light source includes a phosphor layer excited by light from multiple LEDs. A dichroic reflector reflects light from the LEDs onto the phosphor layer. First and second LEDs are responsible for first and second broadband portions respectively of a broadband output light of the source, each such broadband portion being broadband and nominally white. The device components are configured and arranged so that the first and second broadband light portions have different CIE color coordinates. These portions combine to yield a resultant color for the overall broadband light output of the source, which resultant color is a func tion of the relative amounts of the first and second broadband light portions. An open-loop or closed-loop controller can independently drive the LEDs to provide a desired mix of the broadband light portions so that the overall broadband light output has a color in a desired design space.

    摘要翻译: 宽带光源包括由来自多个LED的光激发的荧光体层。 二向色反射镜将来自LED的光反射到荧光体层上。 第一和第二LED分别负责源的宽带输出光的第一和第二宽带部分,每个这样的宽带部分是宽带的,并且名义上是白色的。 器件部件被配置和布置成使得第一和第二宽带光部分具有不同的CIE色坐标。 这些部分组合以产生源的总宽带光输出的合成颜色,所得到的颜色是第一和第二宽带光部分的相对量的函数。 开环或闭环控制器可以独立地驱动LED以提供宽带光部分的期望混合,使得整个宽带光输出具有期望的设计空间中的颜色。

    FRONT PROJECTION SCREEN WITH HIGH CONTRAST
    107.
    发明申请
    FRONT PROJECTION SCREEN WITH HIGH CONTRAST 审中-公开
    具有高对比度的前投影屏幕

    公开(公告)号:US20120013851A1

    公开(公告)日:2012-01-19

    申请号:US13143211

    申请日:2010-01-06

    IPC分类号: G03B21/60 G03B21/28 G02B5/02

    CPC分类号: G03B21/56

    摘要: A light diffusing optical construction is disclosed. The optical construction includes an asymmetric optical diffuser that scatters light in a first direction with a first viewing angle AH and in a second direction orthogonal to the first direction with a second viewing angle AV. The ratio AH/AV is at least about 2. The optical construction also includes a substantially specular reflector that reflects light that is not scattered by the asymmetric optical diffuser. The substantially specular reflector has a first average reflectance Ro in the visible at a substantially zero incident angle and a second average reflectance R45 in the visible at a substantially 45 degree incident angle. The ratio Ro/R45 is at least about 1.5. The optical construction also includes a light absorbing layer that absorbs light that is not reflected by the specular reflector.

    摘要翻译: 公开了一种光散射光学结构。 该光学结构包括一个不对称的光学漫射器,其以第一视角AH在第一方向上散射光,并在第二方向上以第二视角AV散射光。 比例AH / AV至少为2.光学结构还包括基本上镜面的反射器,其反射不被非对称光学漫射器散射的光。 基本上镜面的反射器在可见光中具有基本为零入射角的第一平均反射率Ro和可见光以大致45度入射角的第二平均反射率R45。 比率Ro / R45至少约为1.5。 光学结构还包括吸收未被镜面反射体反射的光的光吸收层。

    Multifunctional thick film reflective polarizer for displays
    108.
    发明授权
    Multifunctional thick film reflective polarizer for displays 有权
    多功能厚膜反光偏光镜用于显示

    公开(公告)号:US08035774B2

    公开(公告)日:2011-10-11

    申请号:US11911448

    申请日:2006-04-12

    IPC分类号: G02F1/1335

    摘要: Multilayer reflective polarizers are disclosed that utilize a thick film multilayer stack and that are suitable for use in liquid crystal display devices. The disclosed polarizers can be mechanically stiff and suitable for use as a plate or substrate for other light control films within the display. The polarizers can also include diffusing means to scatter transmitted light of the pass state, reflected light of the block state, or both.

    摘要翻译: 公开了使用厚膜多层堆叠并且适用于液晶显示装置的多层反射偏振器。 所公开的偏振器可以是机械刚性的并且适合用作用于显示器内的其它光控制膜的板或基板。 偏振器还可以包括用于散射通过状态的透射光,阻挡状态的反射光或两者的扩散装置。

    PLANARIZED LED WITH OPTICAL EXTRACTOR
    109.
    发明申请
    PLANARIZED LED WITH OPTICAL EXTRACTOR 审中-公开
    平面LED与光学提取器

    公开(公告)号:US20100051970A1

    公开(公告)日:2010-03-04

    申请号:US12515400

    申请日:2007-11-15

    IPC分类号: H01L33/00 H01L21/30 H01L21/50

    摘要: A light emitting article is disclosed and includes a light emitting diode having an n-layer or p-layer with a first refractive index value. A planarizing layer having a refractive index value equal to or greater than the first refractive index value is disposed on the n-layer or p-layer, and a patterned electrode is disposed on the n-layer or p-layer. An extractor having a light input surface is optically coupled to the planarizing layer.

    摘要翻译: 公开了一种发光制品,并且包括具有第一折射率值的n层或p层的发光二极管。 具有等于​​或大于第一折射率值的折射率值的平坦化层设置在n层或p层上,并且图案化电极设置在n层或p层上。 具有光输入表面的提取器光学耦合到平坦化层。