| 摘要 |
PURPOSE: To enable automatic action or treatment on a desired region or substance with low energy, by estimating the time function distribution of incident light to a detecting equipment, and using the estimation for controlling an optical switch. CONSTITUTION: A light re-radiated, scattered or reflected from active substance M enters other lens 7 again through an optical waveguide 6, a lens 5 and a beam splitter 4 and converges on a detecting equipment 8. The detecting equipment 8 is cooperated with an estimation circuit 9 and can judge very quickly whether the active substance M is arranged on the tip of the optical waveguide 6, or whether the tip of the optical waveguide 6 is not directed to substance which must not be exposed to a laser pulse, at least, a laser pulse of maximum output power. For the judgement, the estimation circuit 9 estimates the change of function regarding time of an incident light to the detecting equipment 8. The estimation circuit 9 controls an optical switch 2 via a logic circuit 10 and an output line 12. Thereby accurate control of energy to substance to be treated is enabled. |
