激光散光光弹仪是一种新型的实验应力分析仪器,本文着重介绍了该仪器在设计中考虑的一些光学和机械系统方面的问题,另外对散光光弹性法的基本原理也作了简单介绍。 Laser astigmatism light projectile is a new type of experimental stress analysis instrument. This article focuses on some optical and mechanical system problems considered in the design of the instrument. In addition, the basic principles of astigmatism photoelasticity method are briefly introduced.