OPTICALLY CONTROLLED LIGHTING DEVICE AND CONTROL METHOD THEREOF

摘要

An optically controlled lighting device and a control method thereof are provided. The optically controlled lighting device includes a lighting main body, a dimming time controller and an optical detector. The control method includes the following steps. In a step (a), the lighting main body, including a controlling circuit and a light source, the dimming time controller and the optical detector are provided. In a step (b), the dimming time controller is enabled to respectively generate an on/off dimming signal, and the light source is respectively turned on/turned off during an on/off period respectively corresponding to the on/off dimming signal, wherein the off period is shorter than the time period for producing persistence of vision. In a step (c), an ambient light intensity is detected by the optical detector during the off period, the brightness of the light source is increased or decreased or the light source is turned off.

主权项

1. An optically controlled lighting device, comprising:
a lighting main body comprising a controlling circuit and a light source, wherein the light source is electrically connected with the controlling circuit; a dimming time controller coupled to the controlling circuit, and generating an on dimming signal and an off diming signal, wherein when the on dimming signal is transmitted to the controlling circuit, the light source is turned on during an on period corresponding to the on dimming signal, wherein when the off dimming signal is transmitted to the controlling circuit, the light source is turned off during an off period corresponding to the off dimming signal; and an optical detector coupled to the controlling circuit, and detecting an ambient light intensity, wherein the off period is shorter than a time period for producing persistence of vision, wherein if the ambient light intensity detected by the optical detector is different from a predetermined value, the light source is controlled by the dimming time controller.