Abstract: The invention relates to a photovoltaic device (1) and a corresponding plant, of the kind comprising a plurality of photovoltaic panels (3), for transforming the incident solar radiation in direct electric current, at least one reflecting surface (2) and a reflecting focal element (8) for concentrating the incident solar radiation, positioned on a frame (4) supported by a support (5) having an electromechanical tracking system (7), in azimuth and/or in elevation, of the direction of origin of the solar rays, wherein said reflecting focal element (8) is further provided with shuttering means of the incident radiation on said reflecting focal element (8) and reflected by said reflecting focal element to said photovoltaic panels (3).

Abstract: The present invention is an improved book cover and removable reading light, the book cover having a central spine section having a longitudinal pocket therein and two outer covers each pivotally connected to opposite edges of the central spine section. An elongated reading light is removably mounted in the pocket of the central spine section, the reading light having a housing including a battery compartment for receiving batteries and a second compartment for receiving an extendable supporting arm for the reading light. The supporting arm and reading light are disposed for movement relative to the second compartment between an open position in which the supporting arm extends out of the second compartment and a closed position in which the supporting arm is disposed within the second compartment. In addition, the reading light is movably mounted relative to the supporting arm for directing light in different directions, as desired by the user.

Abstract: The present invention is an improved book cover and removable reading light, the book cover having a central spine section having a longitudinal pocket therein and two outer covers each pivotally connected to opposite edges of the central spine section. An elongated reading light is removably mounted in the pocket of the central spine section, the reading light having a housing including a battery compartment for receiving batteries and a second compartment for receiving an extendable supporting arm for the reading light. The supporting arm and reading light are disposed for movement relative to the second compartment between an open position in which the supporting arm extends out of the second compartment and a closed position in which the supporting arm is disposed within the second compartment. In addition, the reading light is movably mounted relative to the supporting arm for directing light in different directions, as desired by the user.