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Method and apparatus for production of three-dimensional objects by photosolidification

  • US 4,752,498 A
  • Filed: 03/02/1987
  • Issued: 06/21/1988
  • Est. Priority Date: 03/02/1987
  • Status: Expired due to Term
First Claim
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1. In the method of preparing three-dimensional objects from an uncured photopolymer by treating the photopolymer with radiation to solidify the polymer, the improvement which comprises irradiating said uncured photopolymer by transmitting radiation through a transmittent material in contact with the uncured photopolymer, said material being a material which does not interfere with the solidified photopolymer'"'"'s ability to subsequently cross-link.

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