Patent ID: 6984056

Claim:
A lighting device according to an embodiment of the present invention comprising: a first socket assembly having a first socket which is made of a soft and elastic bar shape conductor, on which a plurality of lamp inserting holes are formed along a longitudinal direction, and a first socket holder in which the socket is received and which is made of an insulator having higher rigidity than the socket wherein the first socket is made of a conductive rubber, which is molded by silicone rubber mixed with carbon black; a second socket assembly having a second socket which is made of a soft and elastic bar shape conductor and on which a plurality of lamp inserting holes are formed along a longitudinal direction, and a second socket holder in which the socket is received and which is made of an insulator having higher rigidity than the socket and is placed to face the first socket assembly; a plurality of fluorescent lamps having a glass lamp vessel each one end of which is inserted in one of the plurality of lamp inserting holes of the first socket in the first socket assembly, and each other end of which is inserted in one of the plurality of lamp inserting holes of the second socket in the second socket assembly wherein the plurality of fluorescent lamps is a dielectric barrier type discharge lamp having a glass lamp vessel, on both end of which an external electrode is formed; and a high frequency power source which supplies a high frequency voltage between the first socket in the first socket assembly and the second socket in the second socket assembly.