公开(公告)号：US20090189530A1

公开(公告)日：2009-07-30

申请号：US12297710

申请日：2007-04-23

Applicant: Ian Ashdown ,  Damien Loveland ,  Ingo Speier

Inventor： Ian Ashdown ,  Damien Loveland ,  Ingo Speier

IPC: H05B37/02

CPC classification number: H05B33/0869 ,  H05B33/0818

Abstract: The present invention provides a method and apparatus for optical feedback control for an illumination device, wherein the control signal for each array of one or more light-emitting elements corresponding to a particular colour, is independently configured using a modification signal whose frequency is different for each colour. Electronic filters whose center frequencies are substantially equal to the modification signal frequencies of the drive currents for the light-emitting elements are used to discriminate between the radiant flux corresponding to each of the different colours of light-emitting elements, from a sample of the mixed radiant flux output collected by one or more optical sensors. The output of an individual electronic filter is substantially directly proportional to the radiant flux output of the light-emitting elements of the associated colour, which together with the desired luminous flux and chromaticity of the output light, the controller can use to adjust the control signals.

Abstract translation: 本发明提供了一种用于照明装置的光学反馈控制的方法和装置，其中对应于特定颜色的一个或多个发光元件的每个阵列的控制信号使用修改信号独立地配置，该修改信号的频率不同于 每种颜色。 使用中心频率基本上等于发光元件的驱动电流的修正信号频率的电子滤波器，从混合的样品中鉴别与各种不同颜色的发光元件相对应的辐射通量 由一个或多个光学传感器收集的辐射通量输出。 单个电子滤波器的输出基本上与相关联的颜色的发光元件的辐射通量输出成正比，其与输出光的期望的光通量和色度一起，控制器可以用来调整控制信号 。

公开(公告)号：US20080215279A1

公开(公告)日：2008-09-04

申请号：US12001786

申请日：2007-12-11

Applicant: Marc Salsbury ,  Ian Ashdown ,  Duncan L. B. Smith ,  Shane P. Robinson ,  Ingo Speier

Inventor： Marc Salsbury ,  Ian Ashdown ,  Duncan L. B. Smith ,  Shane P. Robinson ,  Ingo Speier

IPC: G06F19/00

CPC classification number: H05B33/0869 ,  H05B33/0863

Abstract: The present invention provides a system and method for controlling one or more light-emitting elements which are driven by forward currents to generate mixed light for use, for example, through a luminaire. The system has one or more light sensors for acquiring feedback optical sensor data and a user interface for providing reference data representative of a desired mixed light. The system also has a controller for transforming either the sensor data or the reference data into the coordinate space of the other and to determine a difference between the sensor and the reference data in that coordinate space. The controller is configured to adjust the forward currents during operating conditions so that the sensor data matches the setpoint data. The present invention also provides a system and method that can at least partially compensate certain temperature induced effects when transforming the optical sensor or the reference data.

Abstract translation: 本发明提供一种用于控制由正向电流驱动的一个或多个发光元件以产生例如通过照明器使用的混合光的系统和方法。 该系统具有用于获取反馈光学传感器数据的一个或多个光传感器和用于提供表示期望的混合光的参考数据的用户界面。 该系统还具有用于将传感器数据或参考数据转换成另一个的坐标空间的控制器，并且确定该坐标空间中的传感器和参考数据之间的差异。 控制器配置为在运行条件下调整正向电流，以使传感器数据与设定值数据匹配。 本发明还提供一种系统和方法，其可以在变换光学传感器或参考数据时至少部分地补偿某些温度感应效应。

公开(公告)号：US07394210B2

公开(公告)日：2008-07-01

申请号：US11241787

申请日：2005-09-29

Applicant: Ian Ashdown

Inventor： Ian Ashdown

IPC: H05B37/02

CPC classification number: H05B33/0842 ,  H05B33/0863 ,  H05B33/0866 ,  H05B33/0872 ,  H05B37/0254

Abstract: The present invention provides a programmable lighting system comprising a plurality of light-emitting elements and a controller responsive to a hierarchically encoded data input stream. The controller determines and provides appropriate control signals for controlling the characteristics of the light generated by the plurality of light-emitting elements operatively coupled thereto. The data input stream may use a DMX512 or other network protocol and can be hierarchically encoded by varying the value of the START code of the data packets. When a DMX512 or other data packet with a NULL START code or “color” packet is received by the controller, the controller interprets the frames to be intensity control data wherein each frame can correspond to a particular light-emitting element or group of light-emitting elements. The color packet can provide data for the generation of a particular temporal color sequence or a temporal color sequence that is random or any other lighting sequence. When a DMX512 or other data packet with a non-NULL START code or “service” packet is received by the controller, the controller can interpret each START code value independently and can assign or modify one or more attributes of the controller, for example, the particular mode of operation, or an address or serial number may be assigned or modified based on the value of the START code.

Abstract translation: 本发明提供一种包括多个发光元件的可编程照明系统和响应于分层编码的数据输入流的控制器。 控制器确定并提供适当的控制信号，以控制由可操作地耦合到其上的多个发光元件产生的光的特性。 数据输入流可以使用DMX512或其他网络协议，并且可以通过改变数据包的START码的值进行分层编码。 当控制器接收到具有NULL START码或“彩色”数据包的DMX512或其他数据包时，控制器将帧解码为强度控制数据，其中每个帧可以对应于特定的发光元件或发光组， 发光元件。 颜色分组可以提供用于生成特定时间颜色序列或随机或任何其他照明序列的时间颜色序列的数据。 当控制器接收到具有非空START码或“服务”数据包的DMX512或其他数据包时，控制器可以独立地解释每个START码值，并且可以分配或修改控制器的一个或多个属性，例如， 可以基于START码的值来分配或修改特定操作模式，或地址或序列号。

公开(公告)号：US07319298B2

公开(公告)日：2008-01-15

申请号：US11314190

申请日：2005-12-21

Applicant: Paul Jungwirth ,  Shane P. Robinson ,  Ingo Speier ,  Ian Ashdown

Inventor： Paul Jungwirth ,  Shane P. Robinson ,  Ingo Speier ,  Ian Ashdown

IPC: G05F1/00

CPC classification number: H05B33/0869 ,  H05B33/086 ,  H05B33/0863 ,  H05B33/0872 ,  Y10S362/80

Abstract: The present invention provides a luminaire system capable of generating light of a desired chromaticity and luminous flux output during continuous operation with varying ambient operating temperature. The luminaire system can be further capable of maintaining a desired correlated colour temperature during dimming of the luminaire. The luminaire system comprises one or more arrays of light-emitting elements for generating light with a current driver system coupled thereto for selectively supplying electrical drive current to each of the arrays, wherein the current driver system is responsive to drive signals received from a controller. The luminaire system further comprises an optical sensor system for generating optical signals representative of chromaticity and luminous flux output of the light. A heat sensing system is operatively coupled to the one or more arrays for generating signals representative of the junction temperatures of arrays of light-emitting elements during operation. The luminaire system further comprises a controller that is operatively connected to the current driver system, the optical sensor system and the heat sensing system for receiving the signals generated by each of these systems and is configured to generate one or more drive signals for transmission to the current driver system in response to the optical signals and thermal signals received from the optical system and the heat sensing system, respectively, thereby enabling a desired level of control of the output light.

Abstract translation: 本发明提供了一种能够在具有变化的环境工作温度的连续操作期间产生期望的色度和光通量输出的光的照明系统。 在照明器的调暗期间，照明系统还能够保持期望的相关色温。 照明器系统包括一个或多个发光元件阵列，用于产生具有耦合到其上的电流驱动器系统的光，用于选择性地向每个阵列提供电驱动电流，其中当前驱动器系统响应于从控制器接收的驱动信号。 照明系统还包括用于产生表示光的色度和光通量输出的光信号的光学传感器系统。 热感测系统可操作地耦合到一个或多个阵列，用于在操作期间产生表示发光元件阵列的结温的信号。 灯具系统还包括可操作地连接到当前驱动器系统，光学传感器系统和热感测系统的控制器，用于接收由这些系统中的每一个产生的信号，并且被配置为产生一个或多个驱动信号以传输到 电流驱动器系统，分别响应从光学系统和热感测系统接收的光信号和热信号，从而实现对输出光的期望水平的控制。

公开(公告)号：US20060290624A1

公开(公告)日：2006-12-28

申请号：US11449564

申请日：2006-06-08

Applicant: Ian Ashdown

Inventor： Ian Ashdown

IPC: G09G3/32

CPC classification number: G02F1/133603 ,  G02F1/133609 ,  G02F1/133621 ,  G09G3/3413 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2360/145 ,  H05B33/0863 ,  H05B33/0869

Abstract: The present invention provides a method and apparatus for generating light having a desired chromaticity, wherein two or more light-emitting elements which emit light having a dominant wavelength different from the dominant wavelength of a desired chromaticity can be used to generate light having the desired chromaticity. In particular, the dominant wavelength of one light-emitting element is selected to be greater than that of the dominant wavelength of the desired chromaticity and the dominant wavelength of a second light-emitting element is selected to be less than the dominant wavelength of the desired chromaticity. Two or more light-emitting elements configured in this manner can be employed to generate one of each of the three or more display primaries required for a specific lighting application, for example backlighting of a display panel.

Abstract translation: 本发明提供一种用于产生具有期望色度的光的方法和装置，其中发射具有不同于期望色度的主波长的主波长的光的两个或更多个发光元件可用于产生具有期望色度的光 。 特别地，一个发光元件的主波长被选择为大于所需色度的主波长的主波长，并且第二发光元件的主波长被选择为小于所需色散的主波长 色度 可以使用以这种方式配置的两个或更多个发光元件来产生特定照明应用所需的三个或更多个显示原色中的每一个，例如显示面板的背光。

公开(公告)号：US07140752B2

公开(公告)日：2006-11-28

申请号：US10897990

申请日：2004-07-22

Applicant: Ian Ashdown

Inventor： Ian Ashdown

IPC: F21V23/04

CPC classification number: H05B33/086 ,  H05B33/0869 ,  H05B33/0872 ,  Y02B20/341

Abstract: The present invention provides an illumination system enabling dynamic color control of the illumination produced by the system. The illumination system comprises light-emitting elements for producing illumination, and at least one detecting device which collects information relating to the illumination, which is inherently non-linear. The illumination system also integrates a computing system which receives the information from the at least one detecting device and linearises this information using a multivariate function having a solution defining a hyperplane representing constant chromaticity for a given luminous intensity, and then determines a number of control parameters based on the information. The illumination system also integrates a controller for receiving the control parameters from the computing system and determining the control signals to be sent to the light-emitting elements in order to dynamically alter the characteristics of the illumination based on the collected information and the desired illumination result.

Abstract translation: 本发明提供了能够对系统产生的照明进行动态颜色控制的照明系统。 照明系统包括用于产生照明的发光元件，以及至少一个检测装置，其收集与本来是非线性的照明有关的信息。 照明系统还集成了从至少一个检测装置接收信息的计算系统，并且使用具有定义针对给定发光强度表示恒定色度的超平面的解的多元函数对该信息进行线性化，然后确定多个控制参数 根据信息。 照明系统还集成了用于从计算系统接收控制参数的控制器，并且确定要发送到发光元件的控制信号，以便基于收集的信息和期望的照明结果来动态地改变照明的特性 。

公开(公告)号：US20060239689A1

公开(公告)日：2006-10-26

申请号：US11339983

申请日：2006-01-25

Applicant: Ian Ashdown

Inventor： Ian Ashdown

IPC: H04B10/10

CPC classification number: H05B33/0803 ,  H04B10/1141 ,  H04B10/116 ,  H05B33/0818 ,  H05B33/086 ,  H05B33/0869 ,  Y02B20/346

Abstract: The present invention provides a method and apparatus of using light-emitting elements for illumination as well as communication of data, wherein potential flicker due to sub-fusion frequency data correlations can be reduced compared to prior art techniques, while reducing redundancy in the data transmission. The intensity of the illumination from the light-emitting elements is controlled by a dimming signal such as a pulse width modulation (PWM) signal or a pulse code modulation (PCM) signal, for example. An amplitude-modulated data signal is then superimposed on the dimming signal for communication of data. The dimming signal thus acts as a carrier signal for the data signal. A sensing means is then used to receive the data signal by detecting all or part of the illumination from the light-emitting elements. The data signal can subsequently be extracted from the detected illumination.

Abstract translation: 本发明提供了一种使用发光元件进行照明以及数据通信的方法和装置，其中与现有技术相比，可以减少与子融合频率数据相关的潜在闪烁，同时减少数据传输中的冗余 。 来自发光元件的照明强度例如由诸如脉冲宽度调制（PWM）信号或脉冲编码调制（PCM）信号的调光信号控制。 然后将幅度调制数据信号叠加在调光信号上用于数据通信。 因此，调光信号用作数据信号的载波信号。 然后通过检测来自发光元件的全部或部分照明来使用感测装置来接收数据信号。 随后可以从检测到的照明中提取数据信号。

公开(公告)号：US20060082331A1

公开(公告)日：2006-04-20

申请号：US11241787

申请日：2005-09-29

Applicant: Ian Ashdown

Inventor： Ian Ashdown

IPC: H05B37/02

CPC classification number: H05B33/0842 ,  H05B33/0863 ,  H05B33/0866 ,  H05B33/0872 ,  H05B37/0254

Abstract: The present invention provides a programmable lighting system comprising a plurality of light-emitting elements and a controller responsive to a hierarchically encoded data input stream. The controller determines and provides appropriate control signals for controlling the characteristics of the light generated by the plurality of light-emitting elements operatively coupled thereto. The data input stream may use a DMX512 or other network protocol and can be hierarchically encoded by varying the value of the START code of the data packets. When a DMX512 or other data packet with a NULL START code or “color” packet is received by the controller, the controller interprets the frames to be intensity control data wherein each frame can correspond to a particular light-emitting element or group of light-emitting elements. The color packet can provide data for the generation of a particular temporal color sequence or a temporal color sequence that is random or any other lighting sequence. When a DMX512 or other data packet with a non-NULL START code or “service” packet is received by the controller, the controller can interpret each START code value independently and can assign or modify one or more attributes of the controller, for example, the particular mode of operation, or an address or serial number may be assigned or modified based on the value of the START code.

Abstract translation: 本发明提供一种包括多个发光元件的可编程照明系统和响应于分层编码的数据输入流的控制器。 控制器确定并提供适当的控制信号，以控制由可操作地耦合到其上的多个发光元件产生的光的特性。 数据输入流可以使用DMX512或其他网络协议，并且可以通过改变数据包的START码的值进行分层编码。 当控制器接收到具有NULL START码或“彩色”数据包的DMX512或其他数据包时，控制器将帧解码为强度控制数据，其中每个帧可以对应于特定的发光元件或发光组， 发光元件。 颜色分组可以提供用于生成特定时间颜色序列或随机或任何其他照明序列的时间颜色序列的数据。 当控制器接收到具有非空START码或“服务”数据包的DMX512或其他数据包时，控制器可以独立地解释每个START码值，并且可以分配或修改控制器的一个或多个属性，例如， 可以基于START码的值来分配或修改特定操作模式，或地址或序列号。

公开(公告)号：US20050062446A1

公开(公告)日：2005-03-24

申请号：US10897990

申请日：2004-07-22

Applicant: Ian Ashdown

Inventor： Ian Ashdown

IPC: H05B33/08 ,  H05B37/00

CPC classification number: H05B33/086 ,  H05B33/0869 ,  H05B33/0872 ,  Y02B20/341

Abstract: The present invention provides an illumination system enabling dynamic colour control of the illumination produced by the system. The illumination system comprises a plurality of light-emitting elements which create illumination at a number of different wavelengths wherein the colour that can be produced by the illumination system is based on the colour gamut defined by the colours of the individual light-emitting elements being blended. The system further includes at least one detecting device in order to collect information relating to the illumination being created by the plurality of light-emitting elements, wherein this information can relate to the luminous flux being produced at the various wavelengths. A computing system is integrated into the illumination system, wherein this computing system provides a means for receiving the information from the at least one detecting device and determines control parameters based on a multivariate function having a solution defining the hyperplane representing constant luminous intensity and chroma. Under these conditions the computing system can essentially linearise the information from the detecting device, thereby determining a number of control parameters from the input information, for transmission to a controller. The controller integrated into the system subsequently determines the control signals to be sent to the light-emitting elements in order to control the illumination produced thereby. In this manner, the illumination system according to the present invention can detect the produced illumination and dynamically alter the produced colour or intensity, for example, based on the collected information and the desired illumination result.

Abstract translation: 本发明提供了能够对系统产生的照明进行动态颜色控制的照明系统。 照明系统包括多个发光元件，其产生多个不同波长的照明，其中可由照明系统产生的颜色基于由混合的各个发光元件的颜色所限定的色域 。 该系统还包括至少一个检测装置，以便收集与由多个发光元件产生的照明有关的信息，其中该信息可以涉及在各种波长下产生的光通量。 计算系统被集成到照明系统中，其中该计算系统提供用于从至少一个检测装置接收信息的装置，并且基于具有定义表示恒定发光强度和色度的超平面的解的多变量函数来确定控制参数。 在这些条件下，计算系统可以基本上将来自检测装置的信息线性化，从而根据输入信息确定多个控制参数，以便传输到控制器。 集成到系统中的控制器随后确定要发送到发光元件的控制信号，以便控制由此产生的照明。 以这种方式，根据本发明的照明系统可以例如基于所收集的信息和期望的照明结果来检测所产生的照明并动态地改变所产生的颜色或强度。

公开(公告)号：US09425368B2

公开(公告)日：2016-08-23

申请号：US14825607

申请日：2015-08-13

Applicant: Michael A. Tischler ,  Ian Ashdown ,  Tom Pinnington ,  Henry Ip

Inventor： Michael A. Tischler ,  Ian Ashdown ,  Tom Pinnington ,  Henry Ip

IPC: H01L33/50 ,  H01L33/32 ,  H01L23/00 ,  H01L33/48 ,  H01L33/54 ,  H01L33/62

CPC classification number: H01L33/508 ,  H01L24/97 ,  H01L33/32 ,  H01L33/486 ,  H01L33/501 ,  H01L33/502 ,  H01L33/504 ,  H01L33/505 ,  H01L33/54 ,  H01L33/62 ,  H01L2224/13 ,  H01L2224/48091 ,  H01L2924/01322 ,  H01L2924/07802 ,  H01L2924/07811 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/181 ,  H01L2933/0025 ,  H01L2933/0033 ,  H01L2933/0041 ,  H01L2933/005 ,  H01L2933/0066 ,  H01L2924/00014 ,  H01L2924/00

Abstract: In accordance with certain embodiments, regions of spatially varying wavelength-conversion particle concentration are formed over light-emitting dies.