Method and apparatus for synchronous laser beam scanning
US7940444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Dec 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/123
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A scanner system. The system includes a mirror assembly having multiple reflective surfaces arranged to form one polygonal shape about an axis. A plurality of the multiple surfaces are each positionable to reflect radiation propagating from the source at a reflective angle and a position on the reflective surface to direct the radiation along a transmit path. When one reflective surface is so positioned, another surface is positioned to receive and reflect radiation along a detector signal path for processing. According to a related method for acquiring image data a mirror assembly is provided with multiple reflective surfaces sequentially arranged to form a polygonal shape about an axis. A beam of radiation is reflected from a first of the reflective surfaces and along a path in a first direction to a target region and a return signal propagates along the path in a second direction away from the target region. A portion of the return signal is reflected from a surface of a second of the reflective surfaces of the mirror assembly and along a path to a detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.