Sub-pixel grayscale three-dimensional printing
US10354445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | May 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques and systems for sub-pixel grayscale three-dimensional (3D) printing are described. A technique includes mapping a 3D digital model onto a 3D grid of voxels associated with a 3D printer; assigning a first intensity level to first voxels that are fully contained within the model, the first intensity level being sufficient to cure photoactive resin during a curing time; determining, based on geometric information provided by the model, containment degrees for second voxels that are partially contained within the model; assigning second intensity levels to the second voxels based respectively on the containment degrees, the second intensity levels being greater than a third intensity level and lesser than the first intensity level; assigning the third intensity level to third voxels that are outside of the model; and generating one or more graphic files based on the first, second, third voxels, and respectively assigned intensity levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.