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Methods for curing partially polymerized parts

  • US 5,164,128 A
  • Filed: 04/02/1991
  • Issued: 11/17/1992
  • Est. Priority Date: 04/18/1988
  • Status: Expired due to Term
First Claim
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1. An apparatus for curing a stereolithographically-produced part produced form a material capable of selective physical transformation upon exposure to synergistic stimulation within a reactive range of wavelengths, the range including peak-absorptive wavelengths absorbed most strongly by the material, and off-peak-absorptive wavelengths absorbed substantially less strongly by the material, and the part comprising at least some of said material which is no more than partially transformed, comprising:

  • means for providing synergistic stimulation to said part including as a component synergistic stimulation at at least one of said off-peak-absorptive wavelengths, wherein said component has a corresponding energy, and wherein said corresponding energy of said component is such that any further transformation of said no more than partially transformed material upon exposure to said synergistic stimulation provided to said part will primarily occur in response to said component; and

    means for exposing said part to said provided synergistic stimulation whereupon at least some of said no more than partially transformed material substantially transforms.

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