| 摘要 |
The invention provides a verticalness indicating apparatus for a bow in which the axial position of a pendulum member with respect to the housing in which the pendulum is mounted controls one or both of the color and intensity of light delivered via a light guide from the apparatus to one or more sight pins of a bow sight mounted on the bow. In this manner, the apparatus provides visual cues to the archer as to the vertical alignment of the bow contemporaneously with the archer's focus on the sight pin. |
