The full automatic light adjustment within a wide range is carried out by the integration time of CCD camera with an electron shutter and planar motor automatic iris controlled by video signal.

它采用视频信号控制带有电子快门的C C D摄象机的积分时间以及平面电机自动光圈，实现宽范围全自动调光。

youdao

The condenser is equipped with an iris diaphragm, a shutter controlled by a lever which is used to regulate the amount of light entering the lens system.

聚光镜装配有瞳孔膜，那是一个有贡杆控制的快门，用来调节进入镜头系统的光量。

youdao