抛物面反射镜光轴的确定

介绍了一种确定抛物面反射镜光轴的新方法。当抛物面反射镜绕着机械旋转轴旋转时，利用2束平行光(一束与机械旋转轴平行的光和一束与机械旋转轴成一定角度的斜平行光)经抛物面反射镜反射的像点运动，调整抛物面反射镜的位置，使光轴与机械旋转轴重合。理论分析结果表明：其定轴的倾斜误差不大于1′，平移误差不大于5μm。该方法可用于抛物面反射镜检验，也可用于抛物面反射镜的调校工艺中。

Alignment for optical axis of parabolic mirror

A new method to align the optical axis of parabolic mirrors is introduced. The position of the mirror was adjusted to align its optical axis with the slewing axis by utilizing the movement of the image points of two parallel beams (one beam parallel to the slewing axis and another beam oblique to slewing axis with ■angle) reflected by the parabolic mirror,when the parabolic mirror is rotating on the mechanical axis. The theoretical analysis shows that the tilted error of the method is less than 1'and the deviation error is less than 5 μm. This method can be used to the detection and optical adjustment of parabolic mirrors.