| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lamp unit which can maintain thinness and a size of an irradiating surface good enough as compared with those of a flat type discharging tube housed in a lamp unit and has an excellent heat radiating property. <P>SOLUTION: The lamp unit 10 is composed of a chassis 11, a flat type discharging tube 50 arranged on a surface side 11a of the chassis 11, and a lighting-up circuit board 12 of the flat type discharging tune 50 arranged on a rear side 11b of the chassis 11. The surface 11a of the chassis 11 and a light emitting surface S of the flat type discharging tube and its opposite side are bonded with a heat conductive adhesive agent 14 in-between. On the rear side 11b of the chassis 11, the lighting-up circuit board 12 is fixed by a supporting column 13 as a fixing portion, and circuit components 12a, 12b, 12c, 12d composing an electric circuit provided on the surface side 12a of the lighting-up circuit board 12 are pinch-inserted into spaces with a predetermined distance HO. <P>COPYRIGHT: (C)2009,JPO&INPIT |
