Photoelectrical encoder
US5670781A · kind A · utility
14Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 1996 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Feb 8, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/347
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An encoder including a scale and a light source for illuminating the scale, and a sensing device displaceable relative to the scale in a measuring direction for generating measuring signals, with the sensing device including a transparent carrier provided with a scanning grating, photosensors for converting a position-dependent modulated light into electrical scanning signals defining the measuring signals, and strip conductors provided on a surface of the transparent carrier for forming an electrical connection with the photosensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.