Exposure method for reducing distortion in models produced throu

Details Exposure method for reducing distortion in models produced throu Exposure method for reducing distortion in models produced throu

1993-04-12

1995-07-04

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

430320, 430394, 4251744, 264 22, 156 58, 427581, G03C 908

Patent

active

054299080

ABSTRACT:
A method for reducing curl in three dimensional computer generated models, created by the sequential exposure of adjacent layers of a photoformable composition, comprising exposing each layer twice, the first exposure being with an image modulated exposure further modulated to produce a series of isolated, anchored islets along the imaged areas, and the second exposure also being image modulated but without the additional modulation, so as to fuse the islets into a continuous solid image.

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Jacobs, Paul F., Ph.D., Rapid Prototyping & Manufacturing, Fundamentals of Stereolithography, Soc. Manuftrg Engrs., (1992), pp. 197-219.

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