| 摘要 |
Four scales optical sight for grenade launcher is periscope and monocular sight observation, which serves to guide grenade to the target. The optical system of the site contains a prism reverse system makes watching (4) which consists of two bonded prisms, one of which has a "roof" and draws the image without changing the direction and course of radiation. Four rock optical sight for grenade contains a revolving disk (5) with four rocks, whose network (measurement marks) are marked according to the type of grenades and their external ballistics of flying. |
