  Recently, several new characteristics have been introduced to describe null
geodesic structure of stationary spacetimes, such as photon regions (PR) and
transversely trapping surfaces (TTS). The former are three-dimensional domains
confining the spherical photon orbits, while the latter are closed two-surface
of spherical topology which fill other regions called TTR. It is argued that in
generic stationary axisymmetric spacetime it is natural to consider also the
non-closed TTSs of the geometry of spherical cups, satisfying the same
conditions ("partial" TTS or PTTS), which fill the three-dimensional regions,
PTTR. We then show that PR, TTR and PTTR together with the corresponding
anti-trapping regions constitute the complete set of regions filling the entire
three-space (where timelike surfaces are defined) of Kerr-like spacetimes. This
construction provides a novel optical description of such spacetimes without
recurring to explicit solution of the geodesic equations. Applying this
analysis to Kerr-Newman metrics (including the overspinning ones) we reveal
four different optical types for different sets of the rotation and charge
parameters. To illustrate their properties we extend Synge analysis of photon
escape in the Schwarzschild metric to stationary spacetimes and construct
density graphs describing escape of photons from all the above regions.
