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US 6,713,967 B1Granted
Vehicular lighting control system
AssigneeDaimlerChrysler AG
InventorsJohn M Gaynier, Lisa A Gronowski, Joseph G. Machak
Life of this patent
Estimating the term…
Abstract
A vehicular interior lighting system features a lamp assembly having two input terminals, each connected to a power source via two control switches. The lamp assembly further includes a lighting element connected at one end to an input terminal and at the other end to dual position manual switch that is connected in parallel to a diode. This configuration allows the lighting element to be illuminated from either the control switches or via the manual switch, depending on the polarity.
Claims6
A vehicle lamp assembly comprising:
- first and second terminals adapted to be coupled to an electric power source;
- a lighting element having a first end and a second end, the first end coupled to the first terminal;
- a dual position manual switch coupled between the second end of the lighting element and the second terminal;
- and
- a diode coupled between the second end of the lighting element and the second terminal, whereby the diode is operative to supply current to the lighting element wherever the electric power supply has a first polarity with respect to the first and second terminals, and the manual switch is operative in an ON state to supply current to the lighting element whenever the electric power supply has a second polarity opposite to the first polarity with respect to the first and second terminals.
2 more elements
Dependencies are inferred from the claim text.