Patent ID: 7449837

Claim:
A lamp comprising: a lamp tube that generates a light in response to an electric power provided from an external power supply; a first electrode disposed on a first end portion of the lamp tube, the first electrode corresponding to an external electrode having an insertion hole into which the first end portion of the lamp tube is received; a second electrode disposed on a second end portion of the lamp tube; and an insulating adhesive material that combines the lamp tube with the first electrode, the insulating adhesive material being disposed between the lamp tube and an end portion of the first electrode near the insertion hole, wherein the first electrode comprises: a capping portion that covers the first end portion of the lamp tube, the capping portion being connected to the lamp tube; and an insulating portion that has the insertion hole and is extended from the capping portion, the insulating adhesive material being coated on the insulating portion to combine the lamp tube with the insulating portion; and wherein an electrically conductive adhesive material is interposed between the capping portion and the lamp tube, the capping portion being combined with the lamp tube by the electrically conductive adhesive material.