Patent ID: 6552668
Filing Date: 2003-04-22
Classification: G08G

Abstract:
An attachment to a traffic light apparatus for visual indication of a current traffic light signal duration comprising:a single display means without physically moving parts for sequentially reproducing on the same surface area colored visual images of the same color as the color of the current traffic light and with said surface area being reduced substantially in proportion with the time remaining till switching of said current traffic light signal to another traffic light signal, said single display means comprising a housing separated into a plurality of individual colored cells having light-impermeable walls from all sides, except for the sides that face the oncoming traffic, and having transparent walls on said sides that face oncoming traffic; said plurality of color cells being divided into green cells, red cells, and yellow cells; said transparent walls being formed by colored transparent plates, which define the color of respective color cells on which said color transparent plates are installed; said plurality of color cells being arranged in a matrix form with parallel horizontal and vertical rows with at least one light source in each said individual color cell.