Figure 2. Is the schematic diagram that the spherical s-empty hole is equivalent to a concave lens for the s-light emitted by the s-galaxy outside the s-empty hole

From

The Characteristics of Huge Empty Holes Based on the Cosmic Model without Singularity

Shi-Hao Chen

Frontiers of Astronomy, Astrophysics and Cosmology. 2019, 5(1), 6-10