Method and device for automatic control of illumination devices

Communications: electrical – Land vehicle alarms or indicators – External signal light system

Reexamination Certificate

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Details

C307S010800, C315S082000, C315S149000, C340S309160

Reexamination Certificate

active

07049950

ABSTRACT:
A method and an apparatus for automatic control of illumination devices, in particular of a motor vehicle, include a brightness sensor which delivers first signals, the illumination devices are switched off after a time interval that begins at the point in time at which the first signals exceed or fall below a first threshold. The length of the time interval is modifiable, and in particular, is capable of being extended.

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patent: 1 006 020 (2000-06-01), None
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patent: 2 312 504 (1997-10-01), None

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