| 摘要 |
<p>The present invention generally relates to a traffic signal lamp using LEDs, for sending all traffic signals with a desired minimum number of modules by mounting polychromatic LEDs which can emit at least 3 colors on modules of the signal lamp, and for reducing traffic accidents caused by unrecognizable traffic signals by enabling a driver to more clearly recognize the traffic signals through lighting of colors and forms required for the corresponding traffic signals over a wide range.</p> |
