| 20090140171 | Optical Beam Pointing System For Setting Irradiation Position For Radiation - An optical beam pointing system for setting an irradiation position and which is capable of automatically performing positional adjustments of visible light beams with respect to an aiming center. The system uses opposed pointers disposed on opposite sides of an irradiation center, each pointer including a light-projecting portion for projecting a beam aimed at the irradiation center, a light-receiving portion for generating a detection signal, and a control portion. | 06-04-2009 |
