| 摘要 |
The present invention relates to a signal light having a function of displaying a remaining time, comprising a red signal light for a stop signal; a green signal light for a start signal, an arrow mark signal light and a signal frequency control circuit for alternatively flashing on off signal lights according to a signal frequency designated for each signal light. The green signal light includes a number display counter for displaying the remaining time in a number form, and the arrow mark signal light includes a circular stick counter for displaying the remaining time in a circular stick graph form. With these constitutions, a driver is able to easily see and determine the signal lights visually and identify a next process signal frequency, thereby preventing, in advance, an accident due to earlier departure of a vehicle. |
