Image-shearing apparatus
US4287532A · kind A · utility
6Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Oct 15, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Image-shearing apparatus comprises a television camera tube for receiving an optical image from a microscope objective. Electrical circuitry receives the output signal from the camera tube and provides a display image in which a horizontal band is uniformly shifted relative to the remainder of the frame. The amount of lateral shift is adjustable, preferably in a calibrated manner. Then, by registering an edge portion of the image in the shifted band with an adjacent edge portion outside the band, the apparatus may be used with particular advantage in sizing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.