Adjustable lighting system for fluorescent lamp and sensing apparatus of the adjustable lighting system
AssigneeLin-Song Weng
InventorLin-Song Weng
Life of this patent
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Abstract
An adjustable lighting system for fluorescent lamp includes a lighting unit, a sensing apparatus and a control apparatus. The lighting unit can emit a light. The sensing apparatus can sense if a target exists and generate a sensing signal accordingly. The sensing apparatus further generates and outputs a modulating signal based on the sensing signal. The control apparatus can receive the modulating signal from the sensing apparatus, adjust a supporting current of a power source and supply the pulse width and phase level of the current to the lighting unit, to control the intensity of the light emitted by the lighting unit.
Claims13
An adjustable lighting system for fluorescent lamp, comprising:
- a light emitting unit, which is used to emit a light beam;
- a sensing apparatus, which is used to sense existence of a target object so as to generate a first sensing signal and sense an environmental brightness so as to generate a second sensing signal, and to generate a modulation signal based on the first sensing signal and the second sensing signal, wherein the sensing apparatus determines a range of the modulation signal based on the second sensing signal, and selects a specific modulation signal within the range based on the first sensing signal as the modulation signal, and sends out the modulation signal through a wired or radio frequency wireless way;
- and
- a control apparatus, which is connected to the light emitting unit and the sensing apparatus so as to receive the modulation signal from the sensing apparatus through the wired or radio frequency wireless way, wherein the control apparatus, based on the modulation signal, adjusts a pulse width and a phase level of current in a driving circuit is that is provided to the light emitting unit to control a light intensity emitted by the light emitting unit.
A sensing apparatus used in an adjustable lighting system of a fluorescent lamp, wherein the adjustable lighting system of the fluorescent lamp includes a light emitting unit and a control apparatus, the sensing apparatus comprising:
- a first sensing unit, which is used to generate a first sensing signal by sensing whether a target object exists in a neighborhood;
- a second sensing unit, which is used to generate a second sensing signal by sensing an environmental brightness in the neighborhood;
- a processing unit, which is connected to the first sensing unit and the second sensing unit and generates a modulation signal based on the first sensing signal and the second sensing signal, wherein the processing unit determines a range of the modulation signal based on the second sensing signal, and selects a specific modulation signal within the range based on the first sensing signal as the modulation signal;
- and
- an output unit, which is connected to the processing unit for outputting the modulation signal to the control apparatus through a wired or radio frequency wireless way, so that the control apparatus, based on the modulation signal, adjusts a pulse width and a phase level of a supplied current of a supplied voltage outputted to the light emitting unit so as to control a light intensity emitted by the light emitting unit.
Dependencies are inferred from the claim text.