In order to reduce the effect of line-structured laser source on the m easuring accuracy, a unidirectional expanding optical path for the nonlinear sou rce is presented, which can accomplish shaping and intensity correction of Gauss ian beam.

• 为了减小线结构光传感器光源对测量精度的影响，设计了一种集整形和能量校正为一体的非线性光源单向扩展光路。