A magnetic actuator, comprising a first magnet having a first magnetic axis and having a first magnetic field, a second magnet having a second magnetic axis and having a second magnetic field, the first and second magnets defining, at least in part, a magnetic assembly; and a coil actuator assembly at least partially disposed about the magnetic assembly, wherein the first and second magnetic fields collectively approximate a curve. A tilt platform assembly, comprising a support base: a tilt platform pivotally coupled to the support base: at least one coil actuator assembly, mounted to one of the support base or the tilt platform; and at least one magnet assembly mounted to the other of the support base or tilt platform, and being disposable within the at least one coil actuator assembly, the at least one magnetic assembly comprising at least two magnets having respective magnetic fields angularly offset from one another and that collectively approximate a curve.