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1. (WO2018078027) DISPOSITIF D'ÉCLAIRAGE À GRADATION
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

1. A lighting device (10) comprising:

a light engine (12) comprising at least one solid state lighting element (11);

a controller (100) for controlling a dimming level of the light engine;

a wireless communication module (16) communicatively coupled to the controller for receiving a wireless dimming instruction from a wireless controller (20); and

a further communication module (15) communicatively coupled to the controller for connecting to a wired communication channel and for receiving a further dimming instruction from a further controller (30) wired to the further communication module through the wired communication channel;

wherein the controller is adapted to independently control the dimming level of the light engine in response to the wireless dimming instruction and the further dimming instruction;

wherein the controller (100) is adapted to enter a sleep mode in response to a sleep mode instruction, in said sleep mode, at least the wireless communication module or the further communication module is disabled.

2. The lighting device (10) of claim 1 , said sleep mode instruction is an instruction from a user or a disruption, said disruption being one of a disruption of wireless connection to the wireless controller (20) and a disruption of a power supply.

3. The lighting device (10) of claim 1 , wherein the lighting device further comprising an electric charge storage device and a power supply detector arranged to be coupled to a power supply,

wherein the controller (100) is adapted to enter a sleep mode powered by the electric charge storage device in response to a loss of a power supply to the lighting device detected with the power supply detector, in said sleep mode, at least the wireless communication module or the further communication module is disabled.

4. The lighting device (10) of claim 1 , further comprising a memory device (145), wherein the controller (100) is adapted to store a specified dimming level in the memory device.

5. The lighting device (10) of claim 4, wherein the specified dimming level is based on a wireless dimming instruction received from the wireless controller (20) or on a further dimming instruction received from the further controller (15).

6. The lighting device (10) of claim 5, wherein the controller (100) is adapted to store the specified dimming level in the memory device (145) in response to a disruption, said disruption being one of a disruption of wireless connection to the wireless controller (20) and a disruption of a power supply.

7. The lighting device (10) of claim 6, wherein the controller (100) is adapted to store an actual dimming level as the specified dimming level in the memory device (145) in response to said disruption.

8. The lighting device (10) of claim 6 or 7, further comprising a timer (150) for timing a duration of said disruption, wherein the controller (100) is adapted to store the specified dimming level in the memory device (145) if said timed duration does not exceed the disruption threshold and retain a previously stored specified dimming level if said timed duration exceeds the disruption threshold.

9. The lighting device (10) of any of claims 6-8, wherein the loss of wireless connection signals the wireless dimming instruction, and wherein the controller (100) is adapted to alter an actual dimming level at the time of the disruption to the wireless connection in a defined manner to obtain the specified dimming level.

10. The lighting device (10) of claim 7 or 8, wherein the loss of a power supply signals the further dimming instruction, and wherein the controller (100) is adapted to alter an actual dimming level at the time of the disruption to the power supply in a defined manner to obtain the specified dimming level.

11. The lighting device (10) of any of claims 5-10, wherein the controller (100) is further adapted to restore the specified dimming level stored in said memory device (145) upon restoration of said wireless connection or power supply.

12. The lighting device (10) of any of claims 1 -1 1 , wherein the controller (100) is further adapted to, in response to receiving a further dimming instruction from the further controller (20), control the wireless communication module (16) to send a synchronization instruction to the wireless controller (30) for synchronizing dimming level information on said wireless controller with the specified dimming level set in accordance with a received further dimming instruction.

13. The lighting device (10) of claim 3, wherein the electric charge storage device comprises a capacitor.

14. The lighting device (10) of any of claims 1 -13, wherein the controller (100) is adapted to exit said sleep mode in response to an instruction from a user or a restoration of a disruption, said restoration of the disruption being one of a restoration of wireless connection to the wireless controller (20) and a restoration of the power supply to the lighting device.

15. The lighting device (10) of any of claims 1-13, wherein the lighting device is a light bulb.