Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1993-09-17
1994-12-20
Pellinen, A. D.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
307 101, 315 82, 315 77, 361175, B60L 114, H01H 4724, B60Q 102
Patent
active
053748522
ABSTRACT:
A lighting control apparatus for a motor vehicle, the motor vehicle having an electrical power supply, an ignition switch, lights, a lighting control switch for illuminating the lights, a wiper device, and a wiper control switch for actuating the wiper device, the lighting control apparatus automatically illuminating the lights whenever the wiper device is actuated, the lighting control apparatus including a photosensitive element electrically connected in series between the electrical power supply and the lights, the photosensitive element being illuminated by ambient light, the photosensitive element having a first substantially conductive state whenever the intensity of the ambient light is below a first threshold value, the photosensitive element additionally having a second substantially nonconductive state whenever the intensity of the ambient light exceeds a second threshold value, a shutter member movable between a first position substantially shielding the photosensitive element from the ambient light and a second position substantially exposing the photosensitive element to the ambient light, and a movement mechanism for moving the shutter member to the first position substantially shielding the photosensitive element from the ambient light whenever the wiper control switch actuates the wiper device.
REFERENCES:
patent: 4968895 (1990-11-01), Leclercq
patent: 4985660 (1991-01-01), Cronk
patent: 5027001 (1991-06-01), Torbert
patent: 5030884 (1991-07-01), Roussey et al.
patent: 5120981 (1992-06-01), Cope
patent: 5168196 (1992-12-01), Briggette, Sr. et al.
patent: 5187383 (1993-02-01), Taccetta et al.
Krishnan Aditya
Pellinen A. D.
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