| 摘要 |
PURPOSE:To easily perform plural pattern workings by moving two layer opening part having a pattern respectively, forming a projection image on a laser light via the opening made as an optional pattern and projecting on a body to be worked through a projection lens. CONSTITUTION:The laser light condensed by a condensing lens 2 is made a parallel light by a collimeter lens 3, the optical path is changed by a dychroic mirror 7, the laser light is formed in the prescribed pattern by an opening 33 and projected on the body to be worked. An optional pattern is formed on the opening 33 by moving an upper layer 8 and lower layer 9 in parallel or with rotation respectively. An optional projection pattern can easily be formed with the device of this composition. |
