System and method for laser machining of three-dimensional structures
US8552338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2008 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Feb 3, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method of laser machining rotates a workpiece about an axis of rotation, and translates the workpiece in a first direction along the axis of rotation. A mask defining a shape is translated in a second direction opposite the first direction, and a laser beam is directed at the mask such that the laser beam is scanned across the mask and at least a portion of the laser beam passes through the mask and toward the workpiece. The mask and the workpiece are translated with coordinating opposing motion to cause the laser beam to be imaged onto the workpiece with a shape or pattern corresponding to a shape or pattern defined by the mask. Rotation of the workpiece and the shape of the image on the workpiece produce different vectorial intensities such that material of the workpiece is removed to different respective depths to form a three-dimensional structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.