Process for the production of a three-dimensional object...

Details Process for the production of a three-dimensional object... Process for the production of a three-dimensional object...

2011-06-14

2011-06-14

Masinick, Michael D (Department: 2128)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C264S401000, C700S118000, C700S124000

Reexamination Certificate

active

07962238

ABSTRACT:
The invention relates to a process or device for the production of a three-dimensional object by layer-wise solidification of a material which is solidifiable under the application of electromagnetic irradiation by means of mask illumination, wherein the mask is produced using an image forming unit having a prescribed resolution, which is formed from a constant number of image forming elements (pixels) being discrete and being arranged in a spatially mutually fixed manner. For the improvement of the resolution along the outer and inner contours of the sectional areas of the object to be generated layer-wise in the sub-pixel range, a multiple illumination per layer is performed, which consists of a series of multiple images that are mutually shifted in the sub-pixel range in the image/construction plane, wherein a separate mask/bitmap is produced for each shifted image.

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