| 摘要 |
PROBLEM TO BE SOLVED: To excite a laser medium and cool a laser head by using all spectra of sun light, and to oscillate a sun-light excited laser by wastelessly utilizing the irradiation energy of sun light. SOLUTION: Sun light is demultiplexed into infrared, red and other light by a dichroic mirror or the like, the infrared light is used for temperature difference electric generation with use of a semiconductor thermoelectric element, the red light is used for solar cell electric generation, and powers obtained from these rays are used as a power supply of a Peltier cooling element for cooling a laser rod with use of a coolant silicone oil or water. Demultiplexed ultraviolet light is converted to a visible ray with use of a phosphor to excite a laser medium together with direct incident visible light. Consequently, a laser can be continuously oscillated with a high efficiency. COPYRIGHT: (C)2008,JPO&INPIT |
