System and method for canceling dark photocurrent in a color sensor circuit
    1.
    发明申请
    System and method for canceling dark photocurrent in a color sensor circuit 有权
    在彩色传感器电路中消除暗光电流的系统和方法

    公开(公告)号:US20050200732A1

    公开(公告)日:2005-09-15

    申请号:US10801204

    申请日:2004-03-15

    IPC分类号: G01J3/50 G01J3/46 H04N5/225

    摘要: A system and method for canceling dark photocurrent in a color sensor circuit is disclosed. A color sensor is described including a color sensor circuit, a dark color sensor circuit, and a differential amplifier circuit. The color sensor circuit receives photocurrent from a color component of a light input. The color sensor circuit outputs a first voltage indicating intensity of the color component. The dark color sensor circuit receives dark photocurrent and outputs a second voltage indicating an offset voltage. The differential amplifier circuit is coupled to the color sensor circuit and to the dark color sensor circuit. The differential amplifier circuit receives the first and second voltages and outputs a final output that cancels contributions of the offset voltage in the first voltage due to the dark photo current.

    摘要翻译: 公开了一种在彩色传感器电路中消除暗光电流的系统和方法。 描述了一种颜色传感器,其包括颜色传感器电路,深色传感器电路和差分放大器电路。 颜色传感器电路从光输入的颜色分量接收光电流。 颜色传感器电路输出指示颜色分量的强度的第一电压。 深色传感器电路接收暗光电流并输出指示偏移电压的第二电压。 差分放大器电路耦合到彩色传感器电路和暗色传感器电路。 差分放大器电路接收第一和第二电压,并输出由于暗光电流而消除第一电压中的偏移电压的贡献的最终输出。

    System and Method for Canceling Dark Photocurrent in a Color Sensor Circuit
    2.
    发明申请
    System and Method for Canceling Dark Photocurrent in a Color Sensor Circuit 有权
    在彩色传感器电路中取消暗光电流的系统和方法

    公开(公告)号:US20100277624A1

    公开(公告)日:2010-11-04

    申请号:US12832303

    申请日:2010-07-08

    IPC分类号: H04N9/64

    摘要: A system and method for canceling dark photocurrent in a color sensor circuit is disclosed. A color sensor is described including a color sensor circuit, a dark color sensor circuit, and a differential amplifier circuit. The color sensor circuit receives photocurrent from a color component of a light input. The color sensor circuit outputs a first voltage indicating intensity of the color component. The dark color sensor circuit receives dark photocurrent and outputs a second voltage indicating an offset voltage. The differential amplifier circuit is coupled to the color sensor circuit and to the dark color sensor circuit. The differential amplifier circuit receives the first and second voltages and outputs a final output that cancels contributions of the offset voltage in the first voltage due to the dark photocurrent.

    摘要翻译: 公开了一种在彩色传感器电路中消除暗光电流的系统和方法。 描述了一种颜色传感器,其包括颜色传感器电路,深色传感器电路和差分放大器电路。 颜色传感器电路从光输入的颜色分量接收光电流。 颜色传感器电路输出指示颜色分量的强度的第一电压。 深色传感器电路接收暗光电流并输出指示偏移电压的第二电压。 差分放大器电路耦合到彩色传感器电路和暗色传感器电路。 差分放大器电路接收第一和第二电压,并输出由于暗光电流而消除第一电压中的偏移电压的贡献的最终输出。

    System and method for canceling dark photocurrent in a color sensor circuit
    3.
    发明授权
    System and method for canceling dark photocurrent in a color sensor circuit 有权
    在彩色传感器电路中消除暗光电流的系统和方法

    公开(公告)号:US07773134B2

    公开(公告)日:2010-08-10

    申请号:US10801204

    申请日:2004-03-15

    IPC分类号: H04N9/64 H04N5/217

    摘要: A system and method for canceling dark photocurrent in a color sensor circuit is disclosed. A color sensor is described including a color sensor circuit, a dark color sensor circuit, and a differential amplifier circuit. The color sensor circuit receives photocurrent from a color component of a light input. The color sensor circuit outputs a first voltage indicating intensity of the color component. The dark color sensor circuit receives dark photocurrent and outputs a second voltage indicating an offset voltage. The differential amplifier circuit is coupled to the color sensor circuit and to the dark color sensor circuit. The differential amplifier circuit receives the first and second voltages and outputs a final output that cancels contributions of the offset voltage in the first voltage due to the dark photocurrent.

    摘要翻译: 公开了一种在彩色传感器电路中消除暗光电流的系统和方法。 描述了一种颜色传感器,其包括颜色传感器电路,深色传感器电路和差分放大器电路。 颜色传感器电路从光输入的颜色分量接收光电流。 颜色传感器电路输出指示颜色分量的强度的第一电压。 深色传感器电路接收暗光电流并输出指示偏移电压的第二电压。 差分放大器电路耦合到彩色传感器电路和暗色传感器电路。 差分放大器电路接收第一和第二电压,并输出由于暗光电流而消除第一电压中的偏移电压的贡献的最终输出。

    COLOR MANAGEMENT CONTROLLER FOR CONSTANT COLOR POINT IN A FIELD SEQUENTIAL LIGHTING SYSTEM
    4.
    发明申请
    COLOR MANAGEMENT CONTROLLER FOR CONSTANT COLOR POINT IN A FIELD SEQUENTIAL LIGHTING SYSTEM 审中-公开
    颜色管理控制器在场地顺序照明系统中的恒定色彩点

    公开(公告)号:US20080204382A1

    公开(公告)日:2008-08-28

    申请号:US11678230

    申请日:2007-02-23

    IPC分类号: G09G3/32

    摘要: A color management system for a field sequential lighting system. The color management system includes a plurality of light sources, a driver circuit, and a controller. The driver circuit is coupled to the plurality of light sources, and the controller is coupled to the driver circuit. The driver circuit drives the plurality of light sources. The controller generates first and second control signals for a first subframe of a temporal sequence of subframes. The first control signal corresponds to a first light source of a first color which is a primary color for the first subframe. The second control signal corresponds to a second light source of a second color which is a supplemental color for the first subframe. Embodiments of the color management system maintain a color point of the primary color of each subframe.

    摘要翻译: 一种现场顺序照明系统的色彩管理系统。 颜色管理系统包括多个光源,驱动电路和控制器。 驱动器电路耦合到多个光源,并且控制器耦合到驱动器电路。 驱动电路驱动多个光源。 控制器为子帧的时间序列的第一子帧生成第一和第二控制信号。 第一控制信号对应于作为第一子帧的原色的第一颜色的第一光源。 第二控制信号对应于作为第一子帧的补充颜色的第二颜色的第二光源。 颜色管理系统的实施例保持每个子帧的原色的色点。

    Luminary control system
    5.
    发明授权
    Luminary control system 有权
    照明控制系统

    公开(公告)号:US07030574B2

    公开(公告)日:2006-04-18

    申请号:US11106910

    申请日:2005-04-14

    IPC分类号: H05B37/00

    摘要: A light source and method for controlling the same. The light source utilizes a light generator that generates a light signal of a wavelength at an intensity that is set by a control signal. The control signal is controlled by a servo that monitors the light output of the light generator and compares the monitored value with a target value. When the target value is changed, the control signal is initially replaced by a predicted control signal based on the new target value rather than the error signal generated in the servo. This provides time for the servo to adjust to the new target value. In one embodiment, the control signal includes a periodic signal that switches between a value that causes the light generator to generate light of the wavelength and a second value at which the light generator does not generate light of the wavelength.

    摘要翻译: 一种光源及其控制方法。 光源利用光发生器,其产生以由控制信号设定的强度的波长的光信号。 控制信号由监视光发生器的光输出的伺服控制,并将监视值与目标值进行比较。 当目标值改变时,控制信号最初由基于新目标值的预测控制信号而不是伺服中产生的误差信号代替。 这为伺服器提供了调整到新目标值的时间。 在一个实施例中,控制信号包括周期性信号,该周期信号在导致光发生器产生波长的光的值和在光发生器不产生波长的光的第二值之间切换。

    Method and apparatus for controlling an LED based light system
    6.
    发明授权
    Method and apparatus for controlling an LED based light system 有权
    用于控制基于LED的光系统的方法和装置

    公开(公告)号:US07348949B2

    公开(公告)日:2008-03-25

    申请号:US10799216

    申请日:2004-03-11

    IPC分类号: G09G3/32 G09G3/36

    摘要: A technique for controlling a Light Emitting Diode (LED) based light system involves driving individual light sources that make up the LED-based light system at non-overlapping intervals so that light source-specific feedback signals can be generated in response to the emitted light. The light source-specific feedback signals are then used to individually adjust the light sources to achieve desired luminance and chrominance characteristics of the emitted light.

    摘要翻译: 用于控制基于发光二极管(LED)的光系统的技术包括以非重叠的间隔驱动构成基于LED的光系统的各个光源,使得可以响应于发射的光而产生光源特定的反馈信号 。 然后将光源特定的反馈信号用于单独调节光源以实现发射光的所需亮度和色度特性。

    Pre-configured light modules
    8.
    发明授权
    Pre-configured light modules 有权
    预配置的光模块

    公开(公告)号:US06967447B2

    公开(公告)日:2005-11-22

    申请号:US10740949

    申请日:2003-12-18

    摘要: The present invention includes a light source having N light generators, a receiver, and an interface circuit. Each light generator emitting light of a different wavelength, the intensity of light generated by the kth generator is determined by a signal Ik coupled to that light generator. The receiver receives a color coordinate that includes N color components, Ck, for k=1 to N, wherein N is greater than 1. The interface circuit generates the Ik for k=1 to N from the received color components and a plurality of calibration parameters. The calibration parameters depend on manufacturing variations in the light generators. The calibration parameters have values chosen such that a light signal generated by combining the light emitted from each of the light generators is less dependent on the manufacturing variations in the light generators than a light signal generated when Ik is proportional to Ck for k=1 to N.

    摘要翻译: 本发明包括具有N个光发生器,接收器和接口电路的光源。 发射不同波长的光的每个发光体,由第k个发光器产生的光的强度由耦合到该光发生器的信号I N k来确定。 对于k = 1到N,接收机接收包括N个颜色分量C k的颜色坐标,其中N大于1.接口电路产生I k个/ 对于从接收到的颜色分量的k = 1到N和多个校准参数。 校准参数取决于光发生器中的制造变化。 校准参数具有选择的值,使得通过将从每个光发生器发射的光组合而产生的光信号相对于在发光器中的制造变化而言较少地取决于当I < 与k = 1到N成比例。

    Illumination and Color Management System
    9.
    发明申请
    Illumination and Color Management System 有权
    照明和色彩管理系统

    公开(公告)号:US20090090843A1

    公开(公告)日:2009-04-09

    申请号:US11869077

    申请日:2007-10-09

    IPC分类号: G01J1/32

    CPC分类号: H05B33/0869 H05B33/0818

    摘要: Systems and methods for illumination and color management in a system having a plurality of color sources and a plurality of color sensors, wherein there are more color sources than color sensors are described herein. An embodiment of the method includes emitting a plurality of different colors of light from at least two of the color sources, wherein the plurality of colors consist of different intensities of light emitted by the plurality of color sources. Colors of light emitted by the at least two color sources are detected using at least one of the color sensors. The color rendering index for each of the plurality of colors emitted is determined. A color of light to be emitted by the light sources is selected. The intensities of light to be emitted by the color sources is selected, based at least in part on the color rendering index, to achieve the selected color of light.

    摘要翻译: 本文描述了具有多个颜色源和多个颜色传感器的系统中的照明和颜色管理的系统和方法,其中存在比颜色传感器更多的颜色源。 该方法的实施例包括从至少两个颜色源发射多种不同颜色的光,其中多种颜色由多个颜色源发射的不同强度的光组成。 使用至少一个颜色传感器检测由至少两个颜色源发射的光的颜色。 确定发射的多种颜色中的每一种的显色指数。 选择由光源发射的光的颜色。 至少部分地基于显色指数来选择由颜色源发射的光的强度,以实现所选择的光的颜色。

    System and method for producing white light using a combination of phosphor-converted white LEDs and non-phosphor-converted color LEDs
    10.
    发明授权
    System and method for producing white light using a combination of phosphor-converted white LEDs and non-phosphor-converted color LEDs 有权
    使用磷光体转换的白色LED和非磷光体转换的彩色LED的组合产生白光的系统和方法

    公开(公告)号:US07256557B2

    公开(公告)日:2007-08-14

    申请号:US11273122

    申请日:2005-11-14

    IPC分类号: H01J1/60

    摘要: A system and method for generating white light involves using a combination of phosphor-converted white LEDs and non-phosphor-converted color LEDs to produce white light and adjusting the emitted light in response to feedback signals. Generating white light using a combination of phosphor-converted white LEDs and non-phosphor-converted color LEDs produces white light with an improved CRI and a wide SPD. Adjusting the emitted light in response to feedback allows luminance and chrominance characteristics of the white light to be controlled as the performance of the LEDs changes over time. The emitted light can be adjusted on a per-color basis and/or on a per-group basis, where a group of LEDs includes a combination of at least one phosphor-converted white LED and at least one non-phosphor-converted color LED.

    摘要翻译: 用于产生白光的系统和方法涉及使用磷光体转换的白色LED和非磷光体转换的彩色LED的组合来产生白光并响应于反馈信号调节发射的光。 使用磷光体转换的白色LED和非磷光体转换的彩色LED的组合产生白光,产生具有改进的CRI和宽的SPD的白光。 响应于反馈调整发射光,可以随着LED的性能随时间而变化,来控制白光的亮度和色度特性。 发射的光可以在每个颜色的基础上和/或每组的基础上进行调整,其中一组LED包括至少一种磷光体转换的白色LED和至少一种非磷光体转换的彩色LED 。