Ranging module

Provided in the invention is a ranging module comprising a light emitter, a reflection unit, and a light receiver. The light emitter emits a first light beam and an object reflects the first light beam to form a second light beam. The reflection unit oscillates to reflect the first light beam or the second light beam. The light receiver receives the second light beam to calculate a distance between the ranging module and the object. When the reflection unit oscillates, a first angle or a second angle is formed between a reference line and the axis of the reflection unit. When the first angle is formed between the reference line and the axis, the first light beam is reflected to the object by the reflection unit. When the second angle is formed between the reference line and the axis, the second light beam is reflected to the light receiver by the reflection unit. 种测距模块，包括光发射器、反射单元以及光接收器。该光发射器发出第光束，其中物体反射该第光束以形成第二光束。该反射单元进行摆动，从而反射该第光束或该第二光束。该光接收器接收该第二光束，以计算出该测距模块与该物体间的距离。当该反射单元进行摆动时，基准线与通过该反射单元的轴线夹有第角度或第二角度。当该