Patent ID: 7750549
Filing Date: 2010-07-06
Classification: B82Y,H01J

Abstract:
1. A field emission lamp comprising: a tube having a closed end and an open end; an anode layer substantially covering an entire inner surface of the tube; a fluorescence layer located on the anode layer including at least part of the anode layer corresponding to the closed end; an encapsulation board mated with the open end of the tube; a cathode down-lead pole located at the encapsulation board; a cathode fixing pole fixed at the closed end of the tube, and the cathode fixing pole is insulated by the surrounding anode layer; a cathode filament fixed between the cathode down-lead pole and the cathode fixing pole, the cathode filament having a carbon nanotube layer located on a surface thereof; an anode down-lead ring located at the anode layer adjacent or near the open end of the tube; and an anode down-lead pole located at the encapsulation board and electrically connected with the anode down-lead ring.