×

Method of and apparatus for making a three-dimensional object by stereolithography

  • US 6,261,507 B1
  • Filed: 09/24/1999
  • Issued: 07/17/2001
  • Est. Priority Date: 04/25/1994
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of constructing a three-dimensional object, comprising:

  • a. forming a layer of a solidifiable medium adjacent to any previously formed cross-section of the three-dimensional object in preparation for forming a successive cross-section of the three-dimensional object;

    b. selectively exposing the layer of medium to prescribed stimulation to form the successive cross-section of the three-dimensional object; and

    c. repeating (a) and (b) a plurality of times to construct the three-dimensional object from a plurality of adhered cross-sections, wherein (a) further comprises forming at least a first portion of a first cross-section with a first pattern comprising a plurality of lines of exposure and forming at least a second portion of a second cross-section with a second pattern comprising a plurality of lines of exposure, the second pattern being different from the first pattern, and wherein at least some of the lines of the first pattern expose the medium in a tighter configuration near a boundary of the first cross-section and a looser configuration further away from the boundary of the first cross-section.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×