Optical device and optical machining system using the optical device
US5589955A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1993 |
| Grant date | Dec 31, 1996 |
| Priority date | — |
| Expiry date | Mar 18, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2225/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides an optical device with high light utilization efficiency that is capable of scribing patterns on curved surfaces, as well as flat surfaces, using a liquid crystal spatial light modulator. The invention offers an optical device with high light utilization efficiency and that is capable of three-dimensional formation of curved surfaces using a liquid crystal spatial light modulator. Additionally, the invention offers a widely applicable optical processing system that mounts these optical devices on robots. The invention includes at least a coherent light source, a liquid crystal spatial light modulator for controlling the wavefront of the light from the coherent light source, and a means that records the complex amplitude distribution on the liquid crystal spatial light modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.