| 摘要 |
PROBLEM TO BE SOLVED: To provide a phototherapy apparatus prevented from radiating noxious ultraviolet rays with wavelength less than 280 nm and radiating useful ultraviolet rays of 280-400 nm and infrared rays of 650-1,500 nm. SOLUTION: This phototherapy apparatus comprises a xenon lamp 11, a lamp holder 13, reflection mirrors 15 reflecting light in the side of a radiation window part 2, a filter part 5 transmitting the light with a prescribed wavelength range alone and a control circuit part 20 including a lamp drive circuit, a control circuit, a display circuit and the like. This apparatus is also provided with a cooling fan 17 for cooling the lamp 11 and the circumferential members, and a distance measuring sensor 3 for measuring the distance toward a part to be radiated. The light with the noxious wavelength range out of the light emitted from the xenon lamp 11 is shut off by a filter part 5, corrected into an appropriate intensity and radiated from the radiation window part 2 to the part to be irradiated. COPYRIGHT: (C)2004,JPO&NCIPI
|
