Scanner with flexibly supported light emitter
US5661290A · kind A · utility
18Cited by
53References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1996 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Feb 7, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To reduce the size and weight of an optical scanner, the present invention provides a mirrorless beam scanning unit. A flexible support structure, such as one or more strips of mylar, movably mounts the light emitter in response to a motive force, for example as might be applied by a combination of a permanent magnet coupled to the light emitter and a fixedly mounted electromagnet driven by an alternating current signal. Reciprocation of the light emitter during emission of light by the light emitter causes the light to scan a surface, such as a surface beating a bar code label.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.