  We construct the light escape cones of isotropic spot sources of radiation
residing in special classes of reference frames in the Kerr-de Sitter (KdS)
black hole spacetimes, namely, in the fundamental class of 'non-geodesic'
locally non-rotating reference frames (LNRFs), and two classes of 'geodesic'
frames, the radial geodesic frames (RGFs), both falling and escaping, and the
frames related to the circular geodesic orbits (CGFs). We compare the cones
constructed in a given position for the LNRFs, RGFs, and CGFs. We have shown
that the photons locally counter-rotating relative to LNRFs with positive
impact parameter and negative covariant energy are confined to the ergosphere
region. Finally, we demonstrate that the light escaping cones govern the
shadows of black holes located in front of a radiating screen, as seen by the
observers in the considered frames. For shadows related to distant static
observers the LNRFs are relevant.

General Relativity and Quantum Cosmology