Sunflower Home Heliostat
Unfortunately, they do not provide any information on how to combine this with a fresnel lens to repel squirrels.
The Sunflower Home Heliostat is the first affordable heliostat designed for ease of use for the homeowner. It is fully solar powered with a stand-alone design. Just set it up and aim it at your selected target to add pleasing natural light. There is no need for computer or network connections. The Sunflower’s break-through design offers easy set-up and low maintenance. It requires only a Phillips head screw driver to assemble.