视场光阑

有效视场的大小与视场光阑存在线形关系，同时也受由主镜、目镜组成的放大倍率的影响。

The true field of view depends on the linear scale of that field stop , as determined by the magnification of the eyepiece in that telescope .

在设计上，采用大口径物镜以提高回波信号强度，采用雪崩光电二极管（APD）作为光电探测器件，通过干涉滤光片和视场光阑降低系统背景噪声以提高回波信号信噪比。

In design , we use large aperture lens to enhance the signal power , use avalanche photodiode ( APD ) as a photoelectric detector , using interference filter and the field diaphragm to reduce system background noise to improve signal to noise ratio of echo signal .

合并小农场成一大农场视场光阑-调制盘组合

The aBsorption of small farms into a Big one field stop reticle combination

利用视场光阑实现多镜头成像拼接

Achieve multi-lens image stitching by using eyesight diaphragm