Abstract: The current invention is a Method and Mechanism to Increase Efficiencies of Energy or Particle Beam Collectors. Light may go through a transparent, open, 1-way, low emission, or transparent top that may focus light below from a thin film that is designed to be a Fresnel focusing surface that angles most of the light to a collector(s). With a 1-way mirror, or low emission film or glass top surface, light may go into the light collector unit, but most to all doesn't leave the unit. Light that gets in the light collector/concentrator units and doesn't get totally focused on the collector(s) from the top, may hit the bottom or sides, which each may be a compact linear Fresnel reflector, Fresnel reflector, photovoltaic or other energy collection, or total reflective surface, and be focused to the collector(s) from the surface, or reflected to eventually be incident on the collector(s).