Patent ID: 8215796
Filing Date: 2012-07-10
Classification: F21V

Abstract:
1. A lighting device comprising: a shell; a first circuit; a light source set in the shell; an axis mounted in the shell; an effective amount of conducting liquid; a rotation device and a switch device rotatably connected to the shell via the axis, the switch device comprising a first storing cavity and a second storing cavity configured for accommodating the conducting liquid, wherein, the first storing cavity communicates with the second storing cavity; a plurality of pairs of first grooves formed in the first storing cavity, each of which set a pair of positive/negative terminals, and each of the pairs of positive/negative terminals are electronically connected to light source and the first circuit, and can be connected by the conducting liquid flowing over thereof; and a slide bar formed on the rotation device, and configured for pushing the conducting liquid inside of the first storing cavity; wherein, when the conducting liquid of the first storing cavity is pushed to the second storing cavity by the slide bar, every pair of the positive/negative terminals is disconnected in turn, and the first circuit in relation to the connected terminals is connected, and the light source is in turn exposed, and turned on; when the rotation device is gradually driven to exit the first storing cavity, thereby, the slide bar is exited from the first storing cavity, the conducting liquid of the second storing cavity flows into the first storing cavity, and every pair of the positive/negative terminals is connected in turn, thereby, the light source is hid and turned off.