| 摘要 |
A rotary wheel with a rowed-lights displaying device includes a rotary wheel, a set of rowed-lights, a detecting member and a controller. The set of rowed-lights set on the rotary wheel is provided with a row of lights controlled by the controller to turn on once while rotating for a preset angle along with the rotary wheel. The detecting member can detect the rotation speed of the rotary wheel and transmit the value of the speed to the controller that is able to calculate the time needed for the rotary wheel to rotate a preset angle to enable each light of the rowed-lights to precisely turn on/off as set up previously. Via the photogene theory, a person's eyes can see a complete message designed in advance by means of the lit rowed-rights on the rotary wheel.
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