US Patent 9702671 Device and method for illuminating an arrow nock

Devices and methods for illuminating an arrow nock or bolt end are disclosed. A lighted nock has a nock body that includes an arrow attachment portion and a proximate end having a portion adapted to receive a bowstring in a drawn position. A light source assembly is at least partially disposed within the nock body. The light source assembly includes a slide switch operably connected to a light source and a power source. The light source is activated when the bowstring is released from the drawn position, thereby causing the slide switch to move away from the proximate end and close an electrical circuit formed by the light source and the power source.