Patent · US Expired

Boolean layer comparison slice

US5854748A · kind A · utility

24Cited by
12References
51Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 7, 1995
Grant dateDec 29, 1998
Priority date
Expiry dateJun 7, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B2219/49013
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method of and apparatus for slicing a three-dimensional object representation into a plurality of layer representations is described, wherein the layer representations are subsequently used to form the object layer-by-layer according to the principles of stereolithography. If not already provided in the object representation, a plurality of layer boundary representations are first formed, and then the boolean difference of successive layer boundary representations are computed to derive boundaries of up and down-facing regions, enabling different cure parameters to be specified for these different regions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.