초록 ▼

An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, pa

An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially tailored to provide built-in supports for the object, reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.

대표청구항 ▼

A method for producing a three-dimensional object from a medium capable of selective physical transformation upon exposure to synergistic stimulation, comprising the following steps: forming a three-dimensional object having a first object surface spaced from a second surface by a spacing, and at le

A method for producing a three-dimensional object from a medium capable of selective physical transformation upon exposure to synergistic stimulation, comprising the following steps: forming a three-dimensional object having a first object surface spaced from a second surface by a spacing, and at least partially opposing the second surface; and forming a removable support substantially layer by layer in said spacing from a material, said support in cross-sectional width being thin, and comprising a solid extending along a path connecting said first and second surfaces, the path having a vertical path component which is greater than any horizontal path component, and also extending substantially more than said width along at least one of said first and second surfaces.