04954822 is referenced by 106 patents and cites 3 patents.

A traffic control device includes a housing having a display structure. The display structure includes a non-reflective support panel supporting a plurality of light emitting diode elements arranged in a configuration defining a traffic control symbol. The light emitting diode elements are high intensity limited dispersion L.E.D.'s which emit light in an attenuated angular spread about a central axis. The light emitting diode elements are supported on with their control axis generally parallel to each other and generally perpendicular to the support panel.

Title
Traffic signal using light-emitting diodes
Application Number
7/240072
Publication Number
4954822
Application Date
September 2, 1988
Publication Date
September 4, 1990
Inventor
Arnold Borenstein
2818 W. Chase, Chicago, 60645
IL, US
Agent
Laff Whitesel Conte & Saret
IPC
G08G 1/07
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