| 摘要 |
PROBLEM TO BE SOLVED: To provide an optically molded article which is reduced in fluctuations of strength depending on portion as the optically molded article with its thickness part being made hollow, wherein a high shape accuracy is obtained in the optical molding without any collapse in shape, and which can be applied as a suitable lost pattern for casting. SOLUTION: Respective layers obtained by parallel slicing a three-dimensional model of a design product into compound high density layers are laminately formed as a cured layers of photocurable resin in the optically molded article M. The thickness part of the design product is formed hollow, the hollow inside 1 is sectioned by a reinforcing wall 2 into a honeycomb shape seen from the direction of the optical molding, the sectioned small spaces 10 are communicated with each other through lacking parts 3 of the reinforcing walls 2, making the whole of the hollow inside 1 of the thickness part be in a communication condition.
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