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    • 7. 发明授权
    • Variable aperture peep sight for bows
    • 可变孔径窥视弓
    • US5325598A
    • 1994-07-05
    • US877049
    • 1992-04-30
    • David D. HallGarret Hull
    • David D. HallGarret Hull
    • F41G1/467
    • F41G1/467
    • A bowstring mounted peep sight is disclosed having a peep housing that is frictionally located between displaced bowstring filaments. The peep housing defines a peep hole and a transverse oriented receiving slot. Insertable aperture reducing discs are slidably inserted into the receiving slot to incrementally decrease the relative aperture of the peep hole. To prevent the inserts from being inadvertently dislodged from the receiving slot during use of the invention, one of the displaced bowstring elements is positioned so as to prevent the disc from sliding outwardly therefrom. Because of the design of the peep housing, lightweight materials can be utilized. Frusto conical recesses on both planar surfaces of the peep housing reduce incidental glare thereby increasing the clarity of the observed target.
    • 公开了一种弓弦安装的窥视瞄准镜,其具有摩擦地位于位移的弓弦之间的窥视外壳。 窥视罩定义窥视孔和横向定向的接收槽。 可插入孔径减小盘可滑动地插入到接收槽中以递增地减小窥视孔的相对孔径。 为了防止在使用本发明期间插入件不经意地从接收槽移出,位移的弓弦元件之一被定位成防止盘向外滑动。 由于窥视外壳的设计,可以使用轻质材料。 在窥视罩的两个平面表面上的锥形凹陷减少偶然的眩光,从而增加观察到的目标的清晰度。