  Shocks around clusters of galaxies accelerate electrons which upscatter the
Cosmic Microwave Background photons to higher-energies. We use an analytical
model to calculate this inverse Compton (IC) emission, taking into account the
effects of additional energy losses via synchrotron and Coulomb scattering. We
find that the surface brightness of the optical IC emission increases with
redshift and halo mass. The IC emission surface brightness,
32--34~mag~arcsec$^{-2}$, for massive clusters is potentially detectable by the
newly developed Dragonfly Telephoto Array.
