By placing the reticule in the main optical path of the TV tracking lens, it can not only take the place of the auxiliary optical path in displaying line of sight, but also simplifies the structure of the lens.
By placing the reticule in the main optical path of the TV tracking lens, it can not only take the place of the auxiliary optical path in displaying line of sight, but also simplifies the structure of the lens.
将这种分化板置于电视跟踪镜头的主光路中，用以显示瞄准光标，可取代电视跟踪镜头的辅助光路，使镜头的结构得到简化。