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Methods of curing partially polymerized parts

  • US 5,076,974 A
  • Filed: 11/08/1988
  • Issued: 12/31/1991
  • Est. Priority Date: 04/18/1988
  • Status: Expired due to Term
First Claim
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1. A method for curing a stereolithographically-produced, partially polymerized part comprising a material that absorbs reactive electromagnetic radiation most strongly at peak-absorptive wavelengths and less strongly at off-peak absorptive wavelengths, comprising the steps of:

  • providing a source of electromagnetic radiation, including both peak-absorptive and off-peak absorptive wavelengths, for curing said part; and

    exposing said part to electromagnetic radiation while substantially screening the electromagnetic radiation at the peak-absorptive wavelengths, thereby curing the part with primarily off-peak absorptive wavelengths.

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