Design of telecentric beam path for zoom projection optics

变焦距投影光学系统中的远心光路设计

The telecentric optic system is suitable for different depths of measuring field and real-time changed position of imaging object being tested .

该方法适合于在一个测量视场的多测量面不重合问题，以及测量对象的相对位置实时变化等视觉测量问题。

The thesis analyzes the impact of changing zoom rate caused by out-of-focus and uses telecentric optics system to eliminate the impact approximately .

分析了离焦产生的光学系统放大倍率改变对调焦的影响后，引入远心光学系统来近似消除这种影响。

The adjusting of the measuring system : The metrical impaction of aberration in the telecentric lens is analyzed using image processing method .

测量系统的调试：通过图像像素当量法初步分析了远心镜头的畸变对测量的影响。

The optical system only consists of three germanium lenses with a “ negative-positive-positive ” reversed telephoto telecentric structure in the image space .

采用负-正-正型式的反远距像方远心光路镜头结构，仅有三块非球面锗透镜构成。