| 摘要 |
PURPOSE:To reduce the heat loss caused by radiation from an inner discharge tube to the radial direction, and improve laser efficiency, by installing heat reflecting cylinders surrounding the outer periphery of the inner discharge tube, in an atmosphere heat insulating layer surrounding the inner discharge tube of a metal vapor laser equipment. CONSTITUTION:Heat reflecting cylinders 15, 16 doubly surrounding the outer periphery of an inner discharging tube 2 are buried in an atmosphere heat insulating layer 3 surrounding the outer periphery of the inner discharge tube 2. Each of the inner peripheral surfaces of the heat reflecting cylinders 15, 16 is constituted as heat reflecting mirror 15a or 16a on which high reflection coefficient material, e.g. gold, is vapor-deposited. By this constitution, the heat radiated from the inner discharge tube 2 in the radial direction is reflected in succession by the above heat reflecting cylinders 15, 16. Hence the heat loss from the inner discharge tube 2 can be prevented. |
