| 摘要 |
PURPOSE:To prevent a resin coating layer of a light transmitting plate from deteriorating, to enhance the durability of an apparatus, to improve peeling properties, and to smoothly execute an optically shaping method by disposing the focus of a luminous flux at a position except the resin coating layer. CONSTITUTION:A luminous flux 14 is so focused that its focus F is disposed in a vessel. The luminous flux 14 is so focused that its focus F is disposed on a light transmitting plate 13. Thus, the focus F of the luminous flux 14 is deviated from a resin coating layer 13a so as not to locally concentrically emit the energy of the luminous flux 14 on the resin coating layer 13a. As a result, it can prevent the resin coating layer 13a from early deteriorating. |
