(under subclass 459) Subject matter comprising a sensing means having a characteristic which changes in response to a change in a particular mode or location of the illumination means and wherein the change in characteristic produces a change in the position or intensity of the illumination means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276, for a condition responsive light source and a modifier, and subclass 802 for a position or condition responsive switch.
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307, Electrical Transmission or Interconnection Systems,
10.8, for a lighting circuit for a automobile.
315, Electric Lamp and Discharge Devices: Systems,
77+, for a lamp and discharge system as applied to a vehicle in general. 340, Communications: Electrical,
468+, for a condition responsive external signal light system. [figure] [caption]A - Vehicle; B - Headlamps; C - Power supply section; D - Lamp controller for turning on and off headlamps in response to signal generated from sensor "E"; E - Brightness sensor