| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image display device capable of controlling the temperature of a laser element to a target temperature when the cooling capability of a Peltier device unit decreases. <P>SOLUTION: The image display device includes: the laser element that generates light for projecting and displaying an image on a display screen; a Peltier device unit that cools the laser element; a detecting unit that detects a temperature of the laser element; and a control unit that controls driving of the Peltier device unit so that the temperature detected by the detecting unit becomes the target temperature. The control unit controls driving of the laser element to reduce the light output of the laser element when a driving rate of the Peltier device unit exceeds a threshold indicating that the driving rate approaches a maximum value. <P>COPYRIGHT: (C)2011,JPO&INPIT |
