| 摘要 |
PURPOSE:To reduce the cost of the whole cooling device by moving a piston forth and back and generating compressed air, and discharging to nearby an exposure lamp. CONSTITUTION:Air discharging means 39... which discharge air compressed by the movement of the piston 35 are provided at a part which communicates with a cylinder chamber D at specific intervals in the moving direction of an exposure lamp 16. Then, the discharging direction of the discharging means... is so set that the air compressed air is discharged toward the exposure lamp and a glass table 1 nearby the lamp 16 when a light source holding frame X moves to nearby each discharging means 39. Further, air sucking means 40... which suck the air in the space distance from the discharging space part into the cylinder chamber D when the piston 35 moves as shown by an arrow P in a return stroke after exposure are provided corresponding to the discharging means 39.... |
