| 摘要 |
An LED traffic signal lamp having function for displaying residual time is provided to convert the LED lamp which breaks down and into the other LED lamp by controlling the lighting of LED lamp. A traffic signal lamp using LED having the function for displaying residual time comprises a case(10), a light emitting diode module(20), a lighting-emitting area(30) and a controller(50). The light emitting diode module includes a light emitting diode module(21) for a traffic signal and a light emitting diode module for displaying the digit. The light emitting diode module for the traffic signal includes a light emitting diode lamp(211) which emits the background color. The light emitting diode module for displaying the digit has a light emitting diode lamp which emits the display color. The light emitting diode lamp for background color emits different color from the light emitting diode lamps for display color. The lighting-emitting area has an optical guiding hole and a radiation lens. |
