Printing and inspection system using rotating polygon and optical fibers
US5828483A · kind A · utility
Inventors
Key dates
| Filing date | Feb 13, 1997 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | Feb 13, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/192
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for scanning or tracking, which includes a polygon rotatable about a rotational axis. The system further includes a fixed radiation source directing radiation at the polygon along a path whose extension would intersect the rotational axis of the polygon. The intersection of the extended path with the rotational axis of the polygon constitutes an original imaginary intersection point. The system includes a first scanned region onto which the radiation is projected, the projection being characterized in that radiation emanating from the radiation source is reflected from the polygon and is made to propagate, prior to impinging on the first scanned region, along a path which includes at least one additional path segment with the additional path segment passing through or directed at an additional intersection point, the additional intersection point being a real or imaginary image of the original intersection point. Finally, the system includes a bundle of radiation guides, such as optical fibers, which guide radiation between the first scanned region and a second scanned region remote from the first scanned region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.