| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image display device preventing image degradation. <P>SOLUTION: An image display device of the invention includes an air passage in a housing having air inlets 21a and air outlets 31a or 32a and formed by connecting the air inlets 21a and the air outlets 31a or 32a, and a cooling fan 23 included on the air passage, and at least a portion of a heat radiation unit 34 of a red laser light source device 2 with a lowest use temperature upper limit value is positioned on the air passage on an air inlet side of a heat radiation unit of another laser light source and immediately below the cooling fan 23. <P>COPYRIGHT: (C)2012,JPO&INPIT |
