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    CONTROL DEVICE HAVING BUTTONS WITH MULTIPLE-LEVEL BACKLIGHTING
    34.
    发明申请
    CONTROL DEVICE HAVING BUTTONS WITH MULTIPLE-LEVEL BACKLIGHTING 审中-公开

    公开(公告)号：US20190150244A1

    公开(公告)日：2019-05-16

    申请号：US16244556

    申请日：2019-01-10

    Applicant: Lutron Electronics Co., Inc.

    Inventor： Matthew Philip McDonald ,  Daniel L. Twaddell ,  Jason C. Killo

    IPC: H05B33/08 ,  H05B37/02 ,  H01H13/70

    CPC classification number: H05B33/0854 ,  H01H13/70 ,  H01H2219/039 ,  H03K17/9631 ,  H05B37/02 ,  H05B37/0218 ,  Y02B20/46

    Abstract: A control device may have a plurality of buttons that may be backlit to multiple levels, such as first, second, and third adjacent buttons positioned in order, and first, second, and third LEDs positioned to illuminate a respective button. The control device may be configured to illuminate the first LED to a first LED illumination intensity to illuminate the respective button to a first surface illumination intensity; illuminate the third LED to a second LED illumination intensity to illuminate the respective button to a second surface illumination intensity; and illuminate the second LED to a third LED illumination intensity to illuminate the respective button to the second surface illumination intensity. The third LED illumination intensity may be less than the second LED illumination intensity, which may be less than the first LED illumination intensity, and the second surface illumination intensity may be less than the first surface illumination intensity.

    Control device having buttons with automatically adjustable backlighting
    37.
    发明授权
    Control device having buttons with automatically adjustable backlighting 有权

    公开(公告)号：US10212777B2

    公开(公告)日：2019-02-19

    申请号：US15857058

    申请日：2017-12-28

    Applicant: Lutron Electronics Co., Inc.

    Inventor： Daniel L. Twaddell ,  Matthew Philip McDonald ,  Jason C. Killo ,  Jonathan Robert Quayle

    IPC: H05B33/08 ,  H01H13/83 ,  H05B37/02 ,  H02B15/00

    Abstract: A control device may comprise a plurality of buttons, a plurality of light sources located behind the respective buttons and configured to illuminate the buttons, a light detector circuit configured to measure an ambient light level around the control device, and/or a control circuit configured to control the light sources to adjust surface illumination intensities of the respective buttons in response to the measured ambient light level. Each button may comprise indicia indicating a function of the button. The control circuit set the first button as active and the second button as inactive in response to an actuation of the first button. The control circuit may, based on the measured ambient light level, control the light sources to illuminate the first button to an active surface illumination intensity, and to illuminate the second button to an inactive surface illumination intensity that is less than the active surface illumination intensity.

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