Stereolithographic apparatus and method of use
US5247180A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1991 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Dec 30, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2035/0838
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A stereolithographic apparatus is disclosed comprising a vat, a working surface in the vat, an elevating mechanism for controlling the level of liquid within the vat relative to the working surface, an illumination source for emitting radiation, and an area array deformable mirror device. The illumination source emits radiation which is operable to harden a stereolithographic liquid, while the deformable mirror device is operable to reflect the incident radiation onto the surface of the liquid. The deformable mirror device can harden an entire lamina of liquid in one brief exposure interval increasing throughout without sacrificing resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.