Oil light comes on at low rpms but is off when cruzing at 5000 rpm

[Michaelphilip]

Hey guys ive seen alot of oil light issues but mine seems to be slightly different my oil light chimes on at idle or low rpms but goes out while in the 5000 rpm range or riding down the highway ive seen lights that come on while in upper rpm but mine seems to be opposite i changes oil and filter level is right at the top of the glass and seems to not have any issues anywhere else just the light oh i should mention i got the bike about a week and a half ago and the oil light just started doing this in the last 2 days which is why i changed the oil yesterday thought it was due anyway was dark anyone have any ideas why ita doing this thanks for any help