| 摘要 |
A scanning mechanism including a scanning unit, a rail and a transmission element is disclosed. The scanning unit has a connecting portion and a supporting portion, the scanning unit is slidely disposed on the rail through the supporting portion. The transmission element is connected to the connecting portion of the scanning unit to drive the scanning unit sliding along the rail, and the orthogonal projection of the connecting portion on the rail and the orthogonal projection of the supporting portion on the rail are overlapped with each other.
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