Multiple parallel source scanning device
US6559438B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Jun 30, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical scanner employs a scanning head provided with an array of light-emitting apertures. According to one embodiment, for example, light is directed through wave-guides or optical fibers, embedded in the scanning head, to the apertures. The head is oscillated by a micro electro-mechanical systems (MEMS) motor. This generates a rapidly sweeping array of light spots on the scanned surface. Light is projected to a scanned surface and collected through the same apertures. In an alternate embodiment, scanning head is provided with separate optical fibers, one for each light spot. Each fiber is vibrated by a separate MEMS motor and individually oscillated in synchrony.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.