Optical scanning apparatus
US4555727A · kind A · utility
9Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1983 |
| Grant date | Nov 26, 1985 |
| Priority date | — |
| Expiry date | Sep 14, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Scanning apparatus comprising a base, a light source mounted on the base, a camera mounted on the base and arranged to observe a workpiece surface to be scanned and an optical waveguide arranged in light receiving relationship with the light source for directing light to the workpiece surface, the optical waveguide being operative to provide uniform, homogeneous diffuse illumination of the workpiece surface, thereby to prevent definition of shadows thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.