| 摘要 |
PURPOSE:To enable easy formation of a distributed thickness film having a large change rate in the film shape by projecting lights to the film while there are no objects to hinder the shape change of the film under the entire part of the film or right under part thereof at the time of changing the film shape by photoirradiation. CONSTITUTION:This method consists in increasing the change of the film shape at the time of manufacturing a short focus lens, low loss optical waveguide or the like. The film 11 contg. a photopolymn. reaction material is first formed on a substrate 10, then the material is turned over and light 13 is projected from above or below; for example, from below, by using a mask 12. Photoreaction is thereby induced in the irradiated part of the film 11, by which the film shape is changed. The film 11 is inflated downward by such reaction coupled with the effect of gravity to form lenses 14. The distributed thickness film having the large change rate of the film shape is easily formed in the above-mentioned manner. |
