Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Radiant energy controlled regulation of the current supply...
Patent
1986-10-02
1987-06-30
Dixon, Harold
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Radiant energy controlled regulation of the current supply...
315175, 315307, 315320, H05B 3702
Patent
active
RE0324507
ABSTRACT:
Disclosed is a lighting control system which switches a light fixture on or off, depending upon the amount of ambient light. The control system particularly allows natural light from the sun to be used to the greatest extent possible to supplement electric lighting and vice versa. The system incorporates a photocell light sensor, control circuit, power source, and switching unit. The photocell light sensor is mounted in optical communication with a source of ambient light. In response to the detection by the sensor of a predetermined light level, the control circuit activates the switching unit which is interposed in a circuit furnishing electrical power to a light fixture. The power source supplies power to the control circuit at a voltage of no greater than 20 volts at a current of no greater than 8 amps.
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Light-O-Matic TM brochures; Novitas, Inc., 1523 26th St., Santa Monica, Calif., 90404.
Lights-Out TM brochures; Novitas, Inc., 1523 27th St., Santa Monica, Calif. 90404.
Enertron, Inc. brochure; Raleigh Industrial Center, 1100 Wicomico St., Baltimore, Md. 21230.
Dixon Harold
Kaser Bruce A.
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