Optical processing turntable, wavelength conversion module and projection device

The invention discloses an optical processing turntable, a wavelength conversion module and a projection device. The optical processing turntable comprises a substrate and a driving assembly. The substrate has a holding hole, and a first side and a second side opposite to each other. The driving assembly passes through the holding hole and is arranged on the substrate so as to drive the substrate to rotate. The driving assembly is provided with two locking surfaces, wherein the two locking surfaces are respectively positioned on the first side and the second side of the substrate. By adopting the projection device of the optical processing turntable, noise generated by structural vibration can be effectively reduced, and the service life can be prolonged. 一种光学处理转盘、波长转换模块以及投影装置。光学处理转盘包括基板以及驱动组件。基板具有固持孔及彼此相对的第一侧与第二侧。驱动组件穿过固持孔而配置于基板上，以驱动基板旋转。驱动组件具有两锁固面，其中两锁固面分别位于基板的第一侧与第二侧。采用本发明的光学处理转盘的投影装置，则可有效地降低结构震动所产生的噪音，并可延长使用寿命。