| 摘要 |
The present invention relates to a light source apparatus having a structure for improving the uniformity of the cooling effect on a plurality of light-emitting elements. The light source apparatus (1) comprises a front case (3) that stores an ultraviolet LED (10) and a cooling structure for cooling the front case (3). The respective ultraviolet LEDs (10) are held in the front case (3) via a heat conducting structure. The cooling structure is realized by a rear case (9), and in the rear case (9), by the front case (3) blocking an introduction opening of a circuit board (26), an internal space (9b) with the circuit board (26) arranged is formed. In the rear case (9), an inlet (9d) and an outlet (9e) for introducing and discharging a cooling gas into and from the inside of the space (9b) are formed, and the front case (3) as a whole is cooled via one end face (3e) that is directly in contact with the cooling gas introduced into the space (9b). Thus, since the cooling effect by introduction of the cooling gas is exerted, in a direct sense, to the front case (3) that holds all ultraviolet LEDs (10) integrally, the uniformity of the cooling effect on the respective ultraviolet LEDs (10) is improved. |
