| 摘要 |
<p>Apparatus for aligning a working laser beam with respect to a working area comprises a manipulatable guide having a hand manipulator including a focussing lens for manipulating and focussing the beam on the working area; and a laser generating a low-energy visible laser beam which is directed through the guide and focussing manipulator with the working laser beam. The low-energy laser beam has a divergence angle not substantially greater than that of the working laser beam and includes sections on opposite sides of and equally spaced from the center of the working laser beam such that the focal point of the sections of the low-energy laser beam, when focussed to a single point by the focussing lens, also designates the focal point of the working laser beam.</p> |
