| 摘要 |
PURPOSE:To enhance the safety for a laser treatment by enabling a laser beam to be surely applied only onto an affected part at a suitable degree without the necessity of labor and time for an operator. CONSTITUTION:An exciting laser device 15 irradiates exciting laser onto the outer surface of an organism that therefore emits fluorescence with which the image of the outer surface of the organism is picked up by a high sensitive camera 28. With the use of thus obtained fluorescent image, an irradiation setting circuit 35 prepares data concerning the position and the shape of an affected part. A laser beam emitted from a processing laser device 23 passes through a transmission area of an LCD 22 located on the path of the laser beam, and is then irradiated onto the organism. At this time, the transmission part of the LCD 22 is set similar to the position and the shape of the affected part in accordance with set data. Accordingly, laser beams incident upon an area other than the transmission area is blocked while only the laser beam incident upon the transmission area is irradiated onto the organism, that is, the processing laser beam is precisely irradiated only onto the affected part. |
