Have any companies explored fixed, or movable mirrors as a simple way to maximize the light on the panels? Since mirrors are much lower cost than the panels I a

Have any companies explored fixed, or movable mirrors as a simple way to maximize the light on the panels? Since mirrors are much lower cost than the panels I am surprised that no one faces the PV system away from the sun, and then points 3 mirrors at each panel. In places that aren't space constrained this seems like a much more efficient approach. We have a heliostat for a piece of artwork [1] that keeps the sun hitting the same spot with only slight variations in angle over the year, and it only requires a single motor and gear train. I am aware that the solar furnace type systems all use mirrors, but I haven't seen any PV systems that use this approach. [1] http://www.janetsaadcook.com/BU/BU-1.htm#BUarc http://www.janetsaadcook.com/BU/BU-1.htm#BUarc