The present invention relates to heatsink technology for helping to dissipate thermal energy generated or absorbed with respect to optical focusing and/or concentrating systems such as projectors and spotlights as well as trough or dish reflectors. More specifically, the present invention relates to heat sink technology for helping to dissipate thermal energy generated by or absorbed in the proximity of the focus of optical concentrating elements of solar concentrator modules, wherein the heat sink includes a plurality of heat dissipating fins.