Abstract: An improved photocontrol system for electrical lamps comprising the combination of photoelectric means responsive to the intensity of the ambient light for controlling the turning the lamps on and off, and an electronic timer for turning off the lamps at a preset time interval, after they have been turned on.
December 11, 1974
Date of Patent:
February 15, 1977
Electrotec de Occidente, S.A.
Antonio De Avila-Serafin, Francisco Javier Diaz-Romo