US Patent 9677859 Lighted arrow nock

A lighted arrow nock includes: a light emitting part having a light and a battery to allow the light to be moved forward and backward to and from battery to turn on and off the light; a driving circuit part disposed in the light to intermittently supply the power supplied from the battery to a light emitting diode chip of the light to allow the light to blink; an arrow coupling member having a cylindrical structure so that an outer peripheral surface thereof is inserted into the rear end of an arrow, while having the battery inserted into the inner space thereof; and a light operating member adapted to allow the light to be inserted into the lower portion thereof in the state of being inserted into the arrow coupling member and to move up and down.