| 摘要 |
PROBLEM TO BE SOLVED: To provide an image projection device capable of suppressing temperature rise of an operation part, even when the operation part is disposed above or right above a light source.SOLUTION: An operation part 83 is disposed in an upper surface of an image projection device and above a light source, at least a part of a take-in port 84 and at least a part of an exhaust port are arranged to be placed between the light source and the operation part, and a concave mirror is arranged so that air flowing from the take-in port 84 to the exhaust port 85 flows along a rear surface of a curved surface mirror 42 having a concave shape.SELECTED DRAWING: Figure 21 |
