Optical shaft angle encoder
US4266125A · kind A · utility
29Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1978 |
| Grant date | May 5, 1981 |
| Priority date | — |
| Expiry date | Dec 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/34715
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical comparator has three bifurcated and truncated lenses, each lens having two siamesed and truncated elements having closely spaced optical axes. This results in an optical encoder having a low sensitivity to eccentricity errors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.