Method and apparatus for determining the shape of wire or like article
US4942618A · kind A · utility
39Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1989 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | Mar 16, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/19043
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for determining the shape of a wire or like article is provided in which a plurality of image pickup means are provided that view the wire through coaxial optical systems having their focal planes positioned differently from each other, the wire images imaged on the respective image pickup means are processed to determine the contrast and size of the images, and the results are used to determine the shape of the spatially disposed wire or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.