Dial plate with diffuse lighting
US7758195B2 · kind B2 · utility
3Cited by
11References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2008 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Jul 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S116/05
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for providing diffuse light to a dial plate of a meter is disclosed. The system includes a light-guide and a light source. The light from the light source enters the light-guide and exits the light-guide to illuminate a curved peripheral portion of a dial plate with a diffuse light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.