Patent ID: 8316835
Filing Date: 2012-11-27
Classification: F41A,F41B

Abstract:
1. A pneumatic marker comprising: a body member having a breech defining a longitudinal bore, the longitudinal bore having a central axis, the breech having a hole; a transmitter having an outer surface, the transmitter configured to emit a signal through the outer surface; and a lens disposed in the hole in the breech and being positioned below the central axis to receive the signal after the signal exits through the outer surface of the transmitter, the lens having at least a first surface and a second surface, the signal passing through the first and second surfaces and into the bore so as to sense a paintball within the bore, at least a portion of one of the first and second surfaces being adjacent to the bore and substantially matching a radius of the bore, at least a portion of each of the first and second surfaces having complementary curved contours so that a path of the signal entering the lens is substantially parallel to a path of the signal exiting the lens.