Method of and apparatus for making a three-dimensional object
US7867431B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 25, 2005 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Jan 16, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Prior to molding, an initial position of at least one movable reference mark, provided in the vicinity of an object of manufacture, is measured by a first position measuring means, and the initial position of the movable reference mark is measured by a second position measuring means provided in a processing means. During the course of molding, measurement of a position of the movable reference mark is carried out by the first position measuring means and the second position measuring means. Then, based on the initial position of the movable reference mark prior to molding and the position of the movable reference mark measured by the first and second position measuring means during the course of molding, an optical beam irradiating position of an optical beam and a processing position of the processing means are corrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.