G - Physics – 03 – F
Patent
G - Physics
03
F
96/247, 204/34,
G03F 7/20 (2006.01) B01J 19/12 (2006.01) B29C 67/00 (2006.01) G03F 7/00 (2006.01) G09B 25/00 (2006.01) H05K 3/00 (2006.01) H05K 3/46 (2006.01)
Patent
CA 1319340
METHOD AND APPARATUS FOR PRODUCTION OF THREE-DIMENSIONAL OBJECTS BY PHOTOSOLIDIFICATION ABSTRACT A method for forming three-dimensional objects com- prises irradiating an uncured photopolymer by transmit- ting an effective amount of photopolymer solidifying radiation through a radiation transmittant material which leaves the irradiated surface capable of further cross- linking so that when a subsequent portion is formed it will adhere thereto. In another embodiment other means of preserving subsequent cross-linking are used instead of the transmittant material. Using either method three- dimensional objects can be made layer by layer or point by point. SPECIFICATION This invention relates generally to improvements in a method and apparatus for production of three-dimensional objects. More specifically, it relates to a method and apparatus for forming three-dimensional objects by the irradiation of photopolymers that solidify in response to radiation. All of the commonly practiced processes for fabri- cating three-dimensional objects have disadvantages. For example, the mechanical removal of material to form such objects involves much energy, time and processing; the chemical machining to form such objects has depth limitations and the incapability of making complex shapes; and the thermal molding requires expensive molds; it is very inflexible and it takes much time and energy.
559649
Fudim Efrem V.
Na
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