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    DAYLIGHTING FOR DIFFERENT GROUPS OF LIGHTING FIXTURES
    11.
    发明申请
    DAYLIGHTING FOR DIFFERENT GROUPS OF LIGHTING FIXTURES 有权
    对不同的照明设备组合进行日常照明

    公开(公告)号：US20160302279A1

    公开(公告)日：2016-10-13

    申请号：US14681846

    申请日：2015-04-08

    Applicant: Cree, Inc.

    Inventor： Daniel J. Pope ,  Boris Karpichev

    IPC: H05B33/08 ,  H05B37/02

    CPC classification number: H05B33/0854 ,  H01L2224/48091 ,  H01L2224/48247 ,  H05B37/0218 ,  H05B37/0272 ,  Y02B20/46 ,  H01L2924/00014

    Abstract: Assume that the two groups of lighting fixtures are located in the same general area, employ daylighting, and provide light that can be sensed by each other. A first group will determine an actual lighting contribution provided by the second group and remove the actual lighting contribution provided by the second group when making daylighting decisions. As such, when the dimming level of the second group is changed, the first group will effectively ignore changes in the dimming level of the second group when making daylighting decisions, and vice versa. A group of lighting fixtures may include one or more lighting fixtures.

    Abstract translation: 假设两组照明装置位于相同的一般区域，采用采光，并提供彼此可以感测的光。 第一组将确定第二组提供的实际照明贡献，并在作出采光决定时，删除第二组提供的实际照明贡献。 因此，当第二组的调光水平改变时，第一组将在进行采光决定时有效地忽略第二组的调光水平的变化，反之亦然。 一组照明装置可以包括一个或多个照明装置。

    WALL CONTROLLER CONTROLLING CCT
    12.
    发明申请
    WALL CONTROLLER CONTROLLING CCT 有权
    墙控制器控制CCT

    公开(公告)号：US20150351191A1

    公开(公告)日：2015-12-03

    申请号：US14292363

    申请日：2014-05-30

    Applicant: Cree, Inc.

    Inventor： Daniel J. Pope ,  James McBryde

    IPC: H05B33/08

    CPC classification number: H05B33/0863 ,  H05B33/0806 ,  H05B33/0845

    Abstract: A wall controller that is used for controlling CCT is disclosed. A user input interface allows a user to provide a CCT parameter by pressing a button, entering a value, or the like. The user output interface can provide the user with an indication of a CCT level, which may represent an actual or current CCT level, a maximum or minimum CCT level setting, or the like for an associated lighting fixture. The communication interface facilitates communications with the associated lighting fixture. The control circuitry is configured to receive user input via the user interface; send a signal based on the user input toward the lighting fixture via the communication interface; and control the user output interface to provide the indication of the CCT level. The signal based on the user input may be indicative of an increase or decrease in CCT level, a specific CCT level, or the like.

    Abstract translation: 公开了一种用于控制CCT的墙壁控制器。 用户输入界面允许用户通过按下按钮，输入值等来提供CCT参数。 用户输出接口可以向用户提供CCT级别的指示，其可以表示相关联的照明器具的实际或当前CCT级别，最大或最小CCT级别设置等。 通信接口便于与相关照明灯具的通信。 控制电路被配置为经由用户接口接收用户输入; 通过通信接口将基于用户输入的信号发送到照明灯具; 并控制用户输出接口提供CCT级别的指示。 基于用户输入的信号可以指示CCT级别，特定CCT级别等的增加或减少。

    Ambient light monitoring in a lighting fixture
    15.
    发明授权
    Ambient light monitoring in a lighting fixture 有权

    公开(公告)号：US10161612B2

    公开(公告)日：2018-12-25

    申请号：US13838398

    申请日：2013-03-15

    Applicant: Cree, Inc.

    Inventor： Joseph P. Chobot ,  Daniel J. Pope

    IPC: F21S8/00 ,  F21V23/04 ,  H05B37/02 ,  F21Y103/10 ,  F21S2/00 ,  F21S8/02 ,  F21Y101/00 ,  F21Y115/10 ,  F21Y113/13

    Abstract: A lighting fixture employing a solid-state light source and an ambient light sensor is disclosed. The solid-state light source is placed within a light source housing and configured to emit light through a lens assembly that covers an opening into a mixing chamber provided within the light source housing. In one embodiment, the ambient light sensor is located within mixing chamber with the solid-state light source. In another embodiment, the ambient light sensor is located outside of the mixing chamber. In either embodiment, the ambient light sensor may be recessed within a waveguide, which aides in controlling the sensor distribution beam for the ambient light sensor. The sensor distribution beam essentially defines an area from which light reflected off of a task surface is accurately monitored via the ambient light sensor. The direction of the sensor distribution beam and the light emitted from the ambient light sensor may generally coincide.

    Ambient light sensor circuit
    18.
    发明授权
    Ambient light sensor circuit 有权

    公开(公告)号：US10349483B2

    公开(公告)日：2019-07-09

    申请号：US14928249

    申请日：2015-10-30

    Applicant: Cree, Inc.

    Inventor： Daniel J. Pope ,  Joseph P. Chobot

    IPC: H05B33/08 ,  H05B37/02 ,  G01J1/44 ,  G01J1/42

    Abstract: Ambient light sensor circuitry includes a photodetector, a controllable current source, and control circuitry. The photodetector is coupled between a supply voltage and an intermediate node and configured to provide a photodetector current proportional to an amount of light detected thereby to the intermediate node. The controllable current source is coupled between the intermediate node and ground and configured to shunt a portion of the photodetector current from the intermediate node to ground based on a current control signal. The control circuitry is coupled to the intermediate node and the controllable current source and configured to provide the current control signal to the controllable current source, receive a measurement signal from the intermediate node, adjust the current control signal such that the measurement signal does not exceed a maximum input threshold of the control circuitry, and provide an ambient light measurement signal based on the current control signal.

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