@Gray i don't really know what you mean, all I can say is the beam is constant and the receiver gives a constant stream of 1s to the digital pin input while un-interrupted and whenever an object/person interrupts the beam the receiver then gives a constant stream of 0s.
I need however to alter the code so that when the beam is interrupted that I get a single pulsed increment per cover/uncover event pair as lloyd stated. So that the display counts only on the initial interruption of the beam and not while its being interrupted.