NOVELTY - The directional reflector has an outer deflecting prism (101) and an inner deflecting mirror (102). The orientation or configuration of the deflecting prism and the orientation or configuration deflecting mirror is adjusted such that light incident upon the directional reflector at a given angle of incidence is reflected at a desired exit angle. The deflecting prism is a fresnel prism and the deflecting mirror is a fresnel mirror and the exit angle is controlled by rotating the fresnel elements to effect the desired exit angle.    USE - Directional reflector for use in heliostat for concentrating solar energy such as sunlight on target areas such as central tower in thermal solar power generator and photovoltaic panel located inside building (all claimed).    ADVANTAGE - Allowing both elements to controllably rotate or otherwise change angle of deflection maximizes the degree of control over the angle of the exit beam, allowing the stacked devices of the invention to direct light to a fixed target even as the angle of incident light changes dramatically throughout the day. The reflector includes a lower physical profile and thus reduced wind load and lower weight, and consequently much less support structure is required. Modular heliostat arrays are easily placed on ground or roofs, requiring less expensive and complex installation. The optical elements of the invention are covered by a transparent or highly transmissive cover which protects the optical elements and actuating motors from the elements and facilitates easy cleaning of dust or other debris from the heliostat.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a method of directing sunlight to a target located in the interior of a building; and    (2) a heliostat.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the pair of circular optical elements comprising fresnel elements that has multiple parallel facets which are separated by grooves.    Deflecting prism (101)    Deflecting mirror (102)    Facet (103)    Groove (104)