Scanning device for pixel-by-pixel photoelectric measurement of a measured object
US6028682A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1997 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Dec 4, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0468
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The scanning device comprises a measuring table (T) to which measured object B can be fixed for measurement, measurement carriage (W) with a photoelectric scanning device (100) which can be linearly moved over the surface of the measuring table by means of a drive unit (A), a control unit (S) for the measuring carriage (W), the scanning device (100) and the drive unit (A), and a processing unit (C) for processing and analyzing the measuring signals generated by scanning device (100) from scanned pixels (8) of measured object (B). Scanning device (100) in turn comprises a plurality of measuring heads (120) for pixel-by-pixel measurement of a corresponding plurality of pixels (8) of measured object (B) lying in a row one behind the other and along a corresponding plurality of scanning tracks (5a, 5b) which are parallel to motion direction (X) of measuring carriage (W) such that measured object (B) is sequentially scanned, pixel by pixel, in a grid-like scanning pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.