| 摘要 |
A sighting device for a bow. A light emitting diode (LED) or other initiator of light emits light to form a bright sight point in a line of sight of the bow when the bow is held in a position for shooting, wherein the initiator is spaced from the bright sight point at a position such that it does not obstruct the line of sight of the bow. The initiator is responsive to an indication of an electronic level or other indicator of orientation that the shooting instrument is within a predetermined angle, preferably about 1 degree, of side-wise tilt. Alternatively, a photo optic cable or other light transmitting flexible tubular member has a first end which receives light from a light emitting diode (LED) or other initiator of light and a second end at which the received light is emitted. The second end of the tubular member is positioned to provide the sight point.
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