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Light-sensing, light fixture control system

  • US 4,587,459 A
  • Filed: 12/27/1983
  • Issued: 05/06/1986
  • Est. Priority Date: 12/27/1983
  • Status: Expired due to Term
First Claim
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1. A light-sensing, light fixture control system that can be used in conjunction with a conventional high-voltage lighting system;

  • having a conventional high-voltage power source system;

    said control system comprised of;

    a light sensor mounted in optical communication with the ambient light near a light fixture;

    a switch interposed in a circuit furnishing electrical power to the light fixture;

    a power source for supplying voltage of no greater than 20 volts at an amperage of no greater than 8 amperes to a control circuit;

    said power source located immediately adjacent a conventional power source for electrical attachment thereto; and

    a control circuit electrically connected to the sensor and to the switch for activating the switch in response to detection of predetermined light levels by the light sensor;

    wherein the control circuit is further comprised of;

    high-level adjusting means for manually selecting a level of ambient light as detected by the sensor for activating the switch so as to open the circuit to the light fixture;

    low-level adjusting means for manually selecting a level of ambient light as detected by the sensor for activating the switch so as to close the circuit to the light fixture;

    said light sensor switch, control circuit, and power source for disposition to a conventional lighting system such that no additional high-voltage conduit is required.

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