Patent ID: 7665979
Filing Date: 2010-02-23
Classification: B22F,B29C,B33Y,G02B,Y02P

Abstract:
1. Device for layerwise generative production of three-dimensional objects by acting of electromagnetic or particle radiation at respective positions corresponding to the cross-section of the object in the respective layer comprising: at least two building regions which are separated from each other for objects to be produced; a radiation source for emitting the electromagnetic or particle radiation toward the building regions, characterized by a switch device for switching a pathway of the radiation from the radiation source towards the building regions such that one building region is irradiated at a time, wherein the switch device comprises a switchable optical element or a beam switch, and a control device which controls the switch device to apply the radiation source for concurrent production of an object in each building region, such that during a process step in one building region which runs without participation of the radiation source, a process step with participation of the radiation source runs in another building region.