| 摘要 |
The image projection apparatus includes a temperature detector (S2) that detects a temperature inside of the apparatus, and a controller (36) that performs a protection operation when the temperature detected by the temperature detector (S2) is higher than a predetermined temperature. The controller (36) measures an elapsed time from when a power of the apparatus is turned on, and changes the predetermined temperature (A, B , (C)) in accordance with the elapsed time. This apparatus can avoid mistaken activation or inactivation of a protection function at the time of re-lighting of the light source due to the influence of the residual heat after the light source is turned off. |
