Lighting device for illuminating switch arrangement on motor veh

Details Lighting device for illuminating switch arrangement on motor veh Lighting device for illuminating switch arrangement on motor veh

1987-11-19

1990-01-30

Goldstein, Herbert

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

307 108, 200313, 74484H, B60Q 100

Patent

active

048976334

ABSTRACT:
A lighting device for illuminating operation switches installed on a steering wheel inlcudes a light-emitting diode and an instrument light. The light-emitting diode is turned on by means of a constant-voltage generator which is connected to a power source via a light switch to apply voltage that is less than a predetermined value to said light-emitting diode via a slip ring in response to turning ON of the light switch. The instrument light is connected to the power source via the light switch and is turned on in response to turning ON of the light switch.

REFERENCES:
patent: 3852733 (1974-12-01), Sakurai
patent: 4453088 (1984-06-01), Moore
patent: 4464933 (1984-08-01), Santis
patent: 4578592 (1986-03-01), Nakazawa et al.
patent: 4638131 (1987-01-01), Kidd et al.
patent: 4658150 (1987-04-01), Mizuno et al.
patent: 4701629 (1987-10-01), Citroen
patent: 4728861 (1988-03-01), Kurihara et al.
patent: 4729254 (1988-03-01), Nogami et al.
patent: 4760218 (1988-07-01), Gutman

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