Lighting control apparatus of a control panel in an automobile
US5583484A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | May 15, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/349
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a lighting control apparatus of a control panel in an automobile, a brightness reduction characteristic of a control panel lighting unit relative to a brightness signal of a brightness control unit is previously set according to external operation. The brightness control unit gives a brightness signal for controlling a luminosity of an instrument panel and a luminosity of a control panel which is provided near the instrument panel to a luminosity corresponding to an operation of a dimmer knob. When the brightness signal is given from the brightness control unit, the brightness of the control panel lighting unit is controlled according to a set brightness reduction characteristic relative to the brightness signal of the brightness control unit. Thereby, it is possible to make the luminosity of the control panel relative to the instrument panel a desired brightness characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.