| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a spot light source device equipped with a structure in which leakage light in the device is shielded, and elevation of inside temperature can be suppressed effectively. <P>SOLUTION: Between an intake port (54) and a variable aperture (112), a control plate (55) is installed. This control plate (55) functions as a shield member for preventing that illumination light (L) is directly irradiated to parts , and on the other hand, it functions as an exhaust device since it is arranged on a circulation path of the outside air which has been taken in from a fan (15) and which has proceeded to a space between a shield plate (50) and a control device (100) via the intake port (54) after having detoured the light source (2). As for the outside air taken in by a fan (15), temperature elevation of the device inside is effectively suppressed since it is positively exhausted by existence of the control plate (55). <P>COPYRIGHT: (C)2007,JPO&INPIT |
