| 摘要 |
PURPOSE:To enhance working accuracy by providing a correcting lens so as to make the occupying position of the focal point of the working light agree with the occupying position of the focal point of guide light emitted from optical fibers. CONSTITUTION:When a housing part 2 is made to be an operating state, a CO2 gas laser light beam and an He-Ne laser light beam are emitted from oscillator tubes 2a and 2b. The CO2 gas laser light beam is once converged by a convex lens 2e and inputted into the incident end of the working optical fiber 5a and emitted from the emitting end at a specified expanding angle. Then the image of the emitted CO2 gas laser light is formed at the focal point P by a condenser convex lens 7a. Meanwhile, the He-Ne gas laser light beam is once converged by a convex lens 2f, inputted into the incident end of the guide light optical fiber 5b, and emitted from the emitting end at a specified expanding angle. The image of the emitted He-Ne gas laser light beam is once formed at the focal point Q on the optical axis of a condenser convex lens 7a, and thereafter formed on the focal point P. |
