Abstract: It includes at least one module with a concave reflecting mirror surface which concentrates the light radiation towards certain devices in order to then obtain electrical or other type of energy. It also includes means for orienting that mirror surface according to the position of the sun. It is characterised in principle in that each module comprises a thin lightweight laminar body with an arched structure which incorporates the concave mirror surface, this laminar body being associated with certain stiffening supports which stabilise and stiffen that arched structure in order to maintain this shape, said structure being supported on some ground with the interposition of guide means by which the arched structure at least tilts towards one side or the other depending on the light sensor or timer which activates a device that positions each module in real time with the required orientation according to the position of the sun.

Abstract: The invention is designed to produce electric energy by means of sunlight which is received by at least one light receptor element. It is characterized in comprising at least one close module (1, 1?) filled with water or another liquid, with at least one upper curved transparent lamellar portion (2, 2?) which concentrates the sunlight; said module includes a light receptor element (3) which hangs from a vertical rod (4) connected by one end to a stationary rotation point (5). The light receptor element (3) is connected to the opposite end of the rod, and means are included to place the element at all times in the relevant position depending on the situation and orientation of the sun using a light photosensor (6) or timer.

Abstract: It comprises a first prism (10, 10a, 10b), with triangular base, on which is arranged at least one second transparent prism (2, 11) the combination defining a prismatic body which is arranged on the stereoscopic pair so that, when the user's eyes (13, 14) are positioned in front of the upper face of the prismatic body, each eye visualises the corresponding stereogram (3, 4) via the upper face of the prismatic body, reproducing the three-dimensional vision effect. In an embodiment of the invention the second prism (2, 11) is triangular and provision has been made for a third prism (12, 15) of identical configuration to the above, in which case the stereoscopic photographs/images (3, 4) are divided into halves A, B, C, D which are duly arranged for achieving three-dimensional visualisation. It comprises illumination equipment (5), some lenses (8, 8a) and a directional filter (9).

Abstract: It comprises a first prism (10, 10a, 10b), with triangular base, on which is arranged at least one second transparent prism (2, 11) the combination defining a prismatic body which is arranged on the stereoscopic pair so that, when the user's eyes (13, 14) are positioned in front of the upper face of the prismatic body, each eye visualises the corresponding stereogram (3, 4) via the upper face of the prismatic body, reproducing the three-dimensional vision effect. In an embodiment of the invention the second prism (2, 11) is triangular and provision has been made for a third prism (12, 15) of identical configuration to the above, in which case the stereoscopic photographs/images (3, 4) are divided into halves A, B, C, D which are duly arranged for achieving three-dimensional visualisation. It comprises illumination equipment (5), some lenses (8, 8a) and a directional filter (9).

Abstract: An electronic stereoscopic system provides registered images to a viewer's left eye and right eye to obtain a three-dimensional view. The system include a parallactic simulation for changing a viewing angle of the pixels of a liquid crystal screen, or another screen having directable pixels, so as to produce the three-dimensional view which does not require the use of filtering or blocking spectacles. The pixels are directable at a rate sufficient to provide a three-dimensional effect without perceived discontinuity. In an embodiment, the rate is equivalent to the frame of a standard television set.

Abstract: The invention is based upon the use of the characteristic of LCD screen which offer the possibility of directing the visibility angle of said screens as a function of the voltage applied. By directing said angle towards one eye or the other of the viewer alternatingly, as a function of previously recorded stereoscopic images and at a sufficiently high rate so that the viewer cannot perceive discontinuities, a tri-dimensional effect in the image received by said viewer is obtained. The block diagram of one of the invention includes an image generating system 2 connected to an LCD screen 1 and to an image synchronization block 3 which is connected to an angle generator system 4, the latter providing the necessary voltages to the screen 1 in order to direct the image from the screen to one or the other eye of the viewer.