Knob assemblies with encoder-controlled illumination
US9607792B2 · kind B2 · utility
0Cited by
20References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2014 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Mar 24, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A knob assembly includes a repositionable knob having an interior framework and a light-transmissive indicia, at least one light source for projecting light into the knob to back-illuminate the indicia, a position sensor for providing an output dependent on the position of the knob, and a controller receiving the output from the sensor and controlling the intensity of the at least one light source to compensate for any light blocked by the interior framework, and maintain a substantially uniform illumination of the light-transmissive indicia so that it is viewable from the exterior of the knob.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.