Automatic length detection lighting device

    公开(公告)号:US11991804B2

    公开(公告)日:2024-05-21

    申请号:US17926329

    申请日:2021-05-20

    IPC分类号: H05B45/10 H05B45/12 H05B45/40

    CPC分类号: H05B45/40 H05B45/12

    摘要: A lighting device comprising a lighting unit comprising a plurality of lighting modules and a termination module, wherein the termination module is configured to have an electrical characteristic different from that of each lighting module, such that it draws a different amount of current in response to an applied drive voltage. The present invention suggests automatically determining a lighting module count of the lighting unit upon detection of the termination module, by measuring a change of a current passing through the lighting unit while sequentially activating the modules of the lighting unit.

    Drive circuit for a light-emitting diode light source

    公开(公告)号:US11930574B2

    公开(公告)日:2024-03-12

    申请号:US17750647

    申请日:2022-05-23

    摘要: A controllable lighting device may utilize a controllable impedance circuit to conduct a load current through an LED light source. The controllable impedance circuit may be coupled in series with a first switching device, which may be rendered conductive and non-conductive via a pulse-width modulated signal to adjust an average magnitude of the load current. The controllable lighting device may further comprise a control loop circuit that includes a second switching device. The second switching device may be rendered conductive and non-conductive in coordination with the first switching device to control when a feedback signal is provided to the control loop circuit and used to control the LED light source. The control loop circuit may be characterized by a time constant that is significantly greater than an operating period of the load current.

    CONTROL DEVICE HAVING BUTTONS WITH MULTIPLE-LEVEL BACKLIGHTING

    公开(公告)号:US20240015870A1

    公开(公告)日:2024-01-11

    申请号:US18473407

    申请日:2023-09-25

    摘要: 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.

    LIGHTING APPARATUS
    5.
    发明公开
    LIGHTING APPARATUS 审中-公开

    公开(公告)号:US20230363064A1

    公开(公告)日:2023-11-09

    申请号:US18142701

    申请日:2023-05-03

    摘要: A lighting apparatus includes rectifier, current source and multiple LED module. The rectifier converts an alternative current source to a direct current. The current source receives the direct current to generate a first driving current, a second driving current and a third driving current according to a control command received from a serial communication channel. Each LED module of the multiple LED modules has a package frame and a LED chip. At least three different fluorescent powders are filled in the package frame so that each LED module emits a first light, a second light and a third light from three light areas above the LED chip.

    Automotive lighting device and method

    公开(公告)号:US11743991B2

    公开(公告)日:2023-08-29

    申请号:US17425399

    申请日:2020-01-30

    申请人: VALEO VISION

    摘要: The invention provides an automotive lighting device for an automotive vehicle. This device comprises a voltage regulator, a temperature sensor and a controlled light group. The controlled light group comprises a plurality of light sources and a light driver, the light driver comprising terminals and being configured to selectively activate or deactivate current flow in each terminal, in such a way that each light source is connected to one of the terminals. The controlled light group is fed by a voltage output value of the voltage regulator, the temperature sensor is arranged to sense a temperature in a zone of the lighting device and send information to the voltage regulator and the voltage regulator comprises a control driver to modify the voltage output value when receiving information from the temperature sensor.

    LED CIRCUITS AND ASSEMBLIES
    9.
    发明申请

    公开(公告)号:US20220248516A1

    公开(公告)日:2022-08-04

    申请号:US17728516

    申请日:2022-04-25

    申请人: Lynk Labs, Inc.

    IPC分类号: H05B45/42 H05B45/40 H05B45/37

    摘要: An LED lighting device is disclosed. The LED lighting device includes a first LED circuit and at least one additional LED circuit. The first LED circuit and the at least one additional LED circuit include at least two phosphor coated discretely packaged LEDs connected in series. The phosphor coated discretely packaged LEDs in the first LED circuit emit a different color of light than the phosphor coated discretely packaged LEDs in the at least one additional LED circuit. The LED lighting device also includes a switch configured to be actuated by an end user and provide the end user with a means to produce a change in brightness of at least one of the first LED circuit or the at least one additional LED circuit, or switch at least one of the first LED circuit and the at least one additional LED circuit on or off.

    MULTI-VOLTAGE AND MULTI-BRIGHTNESS LED LIGHTING DEVICES AND METHODS OF USING SAME

    公开(公告)号:US20220232683A1

    公开(公告)日:2022-07-21

    申请号:US17712658

    申请日:2022-04-04

    申请人: Lynk Labs, Inc.

    IPC分类号: H05B45/40 H05B45/42 H05B45/00

    摘要: An LED lighting device is disclosed. The example LED lighting device includes a first LED circuit having at least two phosphor coated LEDs connected in series and at least one additional LED circuit having at least two phosphor coated LEDs connected in series. The LED lighting device also includes a switch having user selectable positions for providing user control to select DC voltage level options to change a DC voltage level that is delivered to at least one of the first LED circuit or the at least one additional LED circuit. One user selectable position decreases a brightness level individually of the first LED circuit and the at least one additional LED circuit. Another user selectable position individually disconnects the first LED circuit and the at least one additional LED circuit from a mains power source.