US 10,602,582 B2
Operation method of lighting system
Kuo-Tsun Lin, Taichung (TW)
Filed by Kuo-Tsun Lin, Taichung (TW)
Filed on May 10, 2019, as Appl. No. 16/409,095.
Claims priority of application No. 2018 1 0460707 (CN), filed on May 15, 2018.
Prior Publication US 2019/0357331 A1, Nov. 21, 2019
Int. Cl. H05B 33/08 (2020.01); H05B 37/02 (2006.01)
CPC H05B 33/0857 (2013.01) [H05B 37/0281 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An operation method of a lighting system that includes a controlling device for receiving an electrical signal from mains electricity, and a lighting device connected to the controlling device and including a plurality of light-emitting diodes (LEDs), the operation method comprising steps of:
outputting, by the controlling device operating in a normal mode, the electrical signal as a control signal to the lighting device;
entering, by the controlling device operating in the normal mode, the transition mode upon receiving a tuning signal from an input device;
generating, by the controlling device operating in the transition mode, a modified signal by modifying the electrical signal according to the tuning signal;
outputting, by the controlling device operating in the transition mode, the modified signal as the control signal to the lighting device;
entering, by the controlling device operating in the transition mode, the normal mode once a predetermined period of time has elapsed since the last time the controlling device receives the tuning signal; and
setting, by the lighting device, a color temperature of light emitted by the LEDs according to waveform of the control signal.