| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To lower the surface temperature of a case in a projector which advances in miniaturization, because such trouble is caused that temperature on the surface of the case of the projector gets high due to the heat of a light source part and that a user feels unpleasant when he (she) touches the case with his (her) hand. <P>SOLUTION: By applying vacuum heat insulating material 12 which is obtained by enclosing core material 13 composed of silica powder and conductive powder in a bag 14 made of non-woven fabric, covering it with casing material 15 and vacuum-enclosing it, whose performance is high and which is thin and has heat resistance between a lamp 3 being a light source part and the case 2, the surface temperature of the case 2 is lowered without increasing the size of the projector 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
