| 摘要 |
PURPOSE:To prevent a laser treatment apparatus using an invisible beam semiconductive laser from erroneously radiating laser beam, by providing a detecting lamp near a through hole which laser rays radiated from a probe with a semiconductive laser pass through. CONSTITUTION:An invisible beam semiconductive laser 10 and an optical lens 7 for making laser beam paralleled and a detecting light LED 11 are attached to a base stand 8 and are fixed to a probe case 9. A prism 6, for making an optical axis of the paralleled laser beam and that of the light of the LED 11 coaxial, is fixed to the probe case 9 as well. The paralleled laser beam are focused on a point F through an optical lens 4, which is fixed with a translucent cap 5 fixed to the probe case 9. Because of a large radiation area, even when the light of the LED 11 passes through an optical lens system contained in the LED 11, it is radiated at a large spreading angle shown as B to the cap 5 and is reflected irregularly, thus becoming visible. |
