LED illumination for cold storage compartments
    1.
    发明授权
    LED illumination for cold storage compartments 有权
    LED照明用于冷藏室

    公开(公告)号:US06726341B2

    公开(公告)日:2004-04-27

    申请号:US09976327

    申请日:2001-10-12

    IPC分类号: F25D2700

    摘要: A storage compartment is equipped with a light emitting diode (LED) light source for illuminating contents inside the compartment. The LED light source includes a LED light engine outside the compartment and a light guide inside the compartment. The light guide is optically coupled to be LED light engine to bring light from the LED light engine into the compartment for providing illumination inside the compartment. The LED light engine may include red, green, and blue LEDs that contribute to the illumination inside the compartment. Respective outputs of the red, green, and blue LEDs may be separately controllable to allow a variably controlled color point of illumination inside the compartment. Total output of the LED light engine may be controllable to vary intensity of illumination inside the compartment.

    摘要翻译: 储物室配备有用于照明隔室内的内容物的发光二极管(LED)光源。 LED光源包括隔室外的LED光引擎和隔间内的光导。 光导光学器件被光学耦合为LED光引擎,以将来自LED光引擎的光引入隔室,以在隔间内提供照明。 LED光引擎可以包括有助于隔室内的照明的红色,绿色和蓝色LED。 红色,绿色和蓝色LED的相应输出可以是单独的可控的,以允许隔室内的可变控制的照明色点。 LED光引擎的总输出可以被控制以改变隔间内的照明强度。

    Method for maintaining light characteristics from a multi-chip LED package
    3.
    发明授权
    Method for maintaining light characteristics from a multi-chip LED package 有权
    用于保持来自多芯片LED封装的光特性的方法

    公开(公告)号:US06998594B2

    公开(公告)日:2006-02-14

    申请号:US10179352

    申请日:2002-06-25

    IPC分类号: G01J1/32

    CPC分类号: H05B33/0869

    摘要: The present invention provides a method, system and structure for maintaining light characteristics from a multi-chip LED package. This may be done by selecting a desired light output and restricting light from a plurality of light emitting diodes in the multi-chip LED package. It may also be done by measuring the restricted light, comparing the measured output light to the desired light and by adjusting current to LEDs in the multi-chip LED package based on the measured light.

    摘要翻译: 本发明提供一种用于保持来自多芯片LED封装的光特性的方法,系统和结构。 这可以通过选择期望的光输出并且限制来自多芯片LED封装中的多个发光二极管的光来实现。 也可以通过测量受限光,将测量的输出光与期望的光进行比较,并且基于测量的光通过调整多芯片LED封装中的LED的电流来完成。

    LED luminaire with light sensor configurations for optical feedback
    4.
    发明授权
    LED luminaire with light sensor configurations for optical feedback 有权
    具有光传感器配置的LED灯具,用于光学反馈

    公开(公告)号:US06741351B2

    公开(公告)日:2004-05-25

    申请号:US09876661

    申请日:2001-06-07

    IPC分类号: G01N2125

    摘要: White light emitting LED luminaire incorporates an array of red, green and blue emitting LEDs and a feedback arrangement to maintain a desired color balance. The feedback arrangement includes photodiodes positioned and enabled to separately measure the light output of each RGB color component. In one embodiment, a single photodiode or array of photodiodes is positioned to intercept reflected light from a partially reflecting element placed in the path of the combined output of the LED array. Individual colors are measured sequentially by pulsing the LEDs and photodiodes or by the use of color filters. In an alternate embodiment, each LED has an associated photodiode, either incorporated into the LED package or in a separate package.

    摘要翻译: 白光发光LED灯具包含红色,绿色和蓝色发射LED阵列和反馈装置,以保持所需的色彩平衡。 反馈装置包括光电二极管,其被定位并且能够分别测量每个RGB颜色分量的光输出。 在一个实施例中,单个光电二极管或阵列的光电二极管被定位成截取来自放置在LED阵列的组合输出的路径中的部分反射元件的反射光。 通过脉冲LED和光电二极管或通过使用滤色器来依次测量单独的颜色。 在替代实施例中,每个LED具有相关联的光电二极管,或者并入LED封装或单独封装中。

    Combined display-camera for an image processing system
    5.
    发明授权
    Combined display-camera for an image processing system 有权
    用于图像处理系统的组合显示摄像机

    公开(公告)号:US07034866B1

    公开(公告)日:2006-04-25

    申请号:US09718246

    申请日:2000-11-22

    IPC分类号: H04N5/232 H04N5/222

    CPC分类号: H04N7/144 H04N5/374

    摘要: An image processing system includes a combined display-camera having an array of interspersed display elements and camera elements, arranged substantially in a common plane of a flat panel or other display. Each of at least a subset of the camera elements has one or more imaging angles associated therewith, with the one or more imaging angles being selected to provide a desired imaging operation for the combined display-camera. The imaging angles of the camera elements can be selected to provide an imaging operation which approximates that of a lens-based single-camera system, a pin-hole camera system or other type of system. Each of the camera elements may include multiple image sensors, such that different imaging angles can be set for the different image sensors of a given camera element, and different perspectives of a scene can be generated in the image processing system.

    摘要翻译: 一种图像处理系统包括具有散布的显示元件和相机元件阵列的组合显示照相机,其基本上布置在平板或其他显示器的公共平面中。 相机元件的至少一个子集中的每一个具有与其相关联的一个或多个成像角度,其中选择一个或多个成像角度以为组合的显示相机提供期望的成像操作。 可以选择相机元件的成像角度以提供近似于基于镜头的单相机系统,针孔相机系统或其他类型的系统的成像操作。 每个相机元件可以包括多个图像传感器,使得可以为给定相机元件的不同图像传感器设置不同的成像角度,并且可以在图像处理系统中生成场景的不同视角。

    Apparatus for mixing light from different color LEDs
    6.
    发明授权
    Apparatus for mixing light from different color LEDs 失效
    用于混合来自不同颜色LED的光的装置

    公开(公告)号:US06264346B1

    公开(公告)日:2001-07-24

    申请号:US09406287

    申请日:1999-09-24

    IPC分类号: F21V500

    摘要: A faceted surface has first and second facets which deflect respective first and second light beams to produce first sub-beams which alternate with second sub-beams. The faceted surface may be a reflector having first facets at 120° to second facets for mixing light beams which are incident at 120° to each other. 100% of reflected sub-beams from each source alternate with 100% of sub-beams from the other source. The faceted surface may also be a refractor which is part of a transparent block having two parallel faceted surfaces. A first refractive surface refracts parallel light beams to produce diverging beams which are each split into spaced apart sub-beams by the second refractive surface. 50% of refracted sub-beams originating from each source alternate with 50% of refracted sub-beams of each adjacent source.

    摘要翻译: 分面具有第一和第二小平面,其使相应的第一和第二光束偏转以产生与第二子光束交替的第一子光束。 分面表面可以是具有在120°至第二面的第一面的反射器,用于混合彼此以120°入射的光束。 来自每个源的反射子光束的100%与来自另一个源的100%的子光束交替。 分面表面也可以是折射器,其是具有两个平行的刻面的透明块的一部分。 第一折射表面折射平行光束以产生发散光束,每个光束通过第二折射表面分裂成间隔开的子光束。 源于每个源的折射子束的50%与每个相邻源的50%的折射子光束交替。

    LED/phosphor-LED hybrid lighting systems
    7.
    发明授权
    LED/phosphor-LED hybrid lighting systems 有权
    LED /荧光粉 - LED混合照明系统

    公开(公告)号:US06692136B2

    公开(公告)日:2004-02-17

    申请号:US10302315

    申请日:2002-11-22

    IPC分类号: F21V900

    摘要: A hybrid lighting system for producing white light including at least one light emitting diode and phosphor-light emitting diode. The hybrid lighting system exhibits improved performance over conventional LED lighting systems that use LEDs or phosphor-LEDs to produce white light. In particular, the hybrid system of the invention permits different lighting system performance parameters to be addressed and optimized as deemed important, by varying the color and number of the LEDs and/or the phosphor of the phosphor LED.

    摘要翻译: 一种用于产生包括至少一个发光二极管和荧光发光二极管的白光的混合照明系统。 与使用LED或荧光体LED产生白光的传统LED照明系统相比,混合照明系统具有改进的性能。 特别地,通过改变荧光体LED的LED和/或荧光体的颜色和数量,本发明的混合系统允许不同的照明系统性能参数被解决和优化为重要的。

    Led luminaire with electrically adjusted color balance
    9.
    发明授权
    Led luminaire with electrically adjusted color balance 有权
    LED灯具具有电调色彩平衡

    公开(公告)号:US06445139B1

    公开(公告)日:2002-09-03

    申请号:US09663050

    申请日:2000-09-15

    IPC分类号: G05F100

    摘要: A luminaire comprises an array of LEDs that include at least one LED in each of a plurality of colors. Supplied to the LEDs for each color is an electrical current that, during a measuring period, comprises a measuring drive pulse having at least a first boost portion and a turn-off portion. The LEDs relating to each color have a light output which has a nominal continuous value during ordinary operation and increases during the boost portion and is interrupted during the turn-off portion. The array has a combined light output when current is supplied to all of the LEDs in the array. A photodiode is arranged to measure the combined light output which selectively turning off the electrical current to the LEDs so that the photodiode measures the light output for each color separately in response to the measuring drive pulse. The average light output during the measuring period is substantially equal to the nominal continuous light output during the ordinary operation so as to avoid visible flickers.

    摘要翻译: 一种照明器包括LED阵列,其包括多种颜色中的每一种中的至少一个LED。 为每种颜色提供给LED的是电流,其在测量周期期间包括具有至少第一升压部分和关断部分的测量驱动脉冲。 与各种颜色相关的LED具有在正常操作期间具有标称连续值的光输出,并且在升压部分期间增加并且在关断部分期间中断。 当电流提供给阵列中的所有LED时,该阵列具有组合的光输出。 布置光电二极管以测量组合光输出,其选择性地关闭到LED的电流,使得光电二极管响应于测量驱动脉冲分别测量每种颜色的光输出。 测量期间的平均光输出基本上等于在普通操作期间的标称连续光输出,以避免可见的闪烁。