Analog indicator with self-luminescent pointer
US5523922A · kind A · utility
12Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1993 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Mar 24, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K35/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An analog indicator for an automotive vehicle is provided. This indicator includes a self-luminescent indicating pointer and a dial plate on which a fluorescent layer is formed. When an input signal indicative of a indicating parameter is changed, the pointer radiates an ultraviolet ray onto the fluorescent layer on the dial plate so that it glows. An observer can thus visually identify a value indicated by the pointer or displacement of the pointer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.