Ring pointer illumination
US7677744B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2006 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Dec 10, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/6992
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An illuminated pointer assembly for a gauge scale having an outer periphery includes a pointer that moves about a periphery of the gauge scale and is illuminated by a light guide. The light guide is disposed on a plane below the pointer and the gauge scale. The light guide includes at least two LEDs that are disposed adjacent first and second ends of the light guide. The light guide also includes a plurality of reflective elements. The plurality of reflective elements is disposed in sets that are orientated with regard to each of the LEDs. The reflective elements provide for the transmission and direction of light within the light guide into the guide body portion of the pointer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.