Reflective imaging encoder
US7102123B2 · kind B2 · utility
22Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2003 |
| Grant date | Sep 5, 2006 |
| Priority date | — |
| Expiry date | Mar 14, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/34715
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Reflective image encoder. A reflective image encoder has an emitter such as one or more light emitting diodes, a diffuse reflective coder such as a code wheel or code strip reflecting a portion of the light from the emitter, an imaging lens forming an inverted image on to a detector. The reflective image encoder may include apertures on either or both sides of the imaging lens, and may include baffles to minimize stray light reaching the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.