| 摘要 |
<p>A lighting device, includes: a luminescent module, which is used for sending out the light beam; an ultrasonic module, which can send out the ultrasonic signal and receive the echoed ultrasonic signal; a signal processing unit, which can convert the echoed ultrasonic signal into a digital control signal; a light control unit, which receives the control signal transmitted by the signal processing unit to control the luminescent module; an indication device controlling unit, which receives the control signal transmitted by the signal processing unit and transmits the control signal; and an indication device, the indication device controlling unit sends a signal to which after receiving the control signal transmitted by the signal processing unit, to show the current operation circumstance of the lighting device to the user.</p> |
