| 摘要 |
PURPOSE: An optical scope is provided to extend eye-relief and to reduce the injury or the danger caused by shooting. CONSTITUTION: An optical formula scope includes an ocular(110), an object lens(120), a reticle(130), a field lens(140) and an image erecting optical system(150). The field lens is arranged between the ocular and the object lens. The gap between the ocular and user`s eyes is longer than that of the eye-relief. |
