US 7,495,376 B2
Light source device, lighting device, and liquid crystal display device
Yoko Matsubayashi, Nara (Japan); Shinichiro Hataoka, Osaka (Japan); Masaki Hirohashi, Kyoto (Japan); Nobuhiro Shimizu, Nara (Japan); Norikazu Yamamoto, Kyoto (Japan); and Teruaki Shigeta, Osaka (Japan)
Assigned to Panasonic Corporation, Osaka (Japan)
Appl. No. 10/582,224
PCT Filed Dec. 09, 2004, PCT No. PCT/JP2004/018406
§ 371(c)(1), (2), (4) Date Apr. 20, 2007,
PCT Pub. No. WO2005/057611, PCT Pub. Date Jun. 23, 2005.
Claims priority of application No. 2003-410065 (JP), filed on Dec. 09, 2003; application No. 2004-221311 (JP), filed on Jul. 29, 2004; and application No. 2004-229210 (JP), filed on Aug. 05, 2004.
Prior Publication US 2007/0274078 A1, Nov. 29, 2007
Int. Cl. H01J 1/88 (2006.01); H01J 11/00 (2006.01)
U.S. Cl. 313—243  [313/238; 313/607] 18 Claims
OG exemplary drawing
 
1. A light source device, comprising:
a bulb inside which a discharge medium is sealed;
an internal electrode disposed at an end portion inside the bulb;
an external electrode disposed outside the bulb;
a dielectric member disposed on a first portion of the bulb so as to be interposed between the bulb and the external electrode, the first portion of the bulb being an outside surface of the bulb in the vicinity of the internal electrode; and
a holder member holding the external electrode so that a second portion of the bulb and the external electrode are opposed to each other with a predetermined distance of a space therebetween, the second portion being an outside surface of the bulb, wherein the second portion does not overlap the first portion of the bulb.