C.r.f. Societa Consortile Per Azioni

Magneti Marelli

C.r.f. Societ&agrave; Consortile Per Azioni

Societa Consortile Per Azioni

S.i.sv El Societa' Italinana Per Lo Sviluppo Dell' Elettronica S.p.a.

Denis Bollea

Piermario Repetto

Davide Capello

Stefano Bernard

Piero Perlo

Cosimo Carvignese

Sabino Sinesi

Roberto Finizio

Bartolomeo Pairetti

Michele Antonipieri

Alberto Pairetti

Sara Padovani

Elena Balocco

Daniele Pullini

Luca Liotti

Pietro Perlo

Stefano Alacqua

Gianfranco Innocenti

Marco Pizzi

Rossella Monferino

Guido Ghisio

Daniele Marenco

Gianluca Rotaris

Giovanni Brusco

Mario Repetto

Giorgio Calvi

Gianluca Monchiero

Described herein is a system and a method for the automatic adjustment of rear-view devices of a vehicle travelling a lane or road, based on shooting scenes representing an environment surrounding the vehicle in the travel direction and on the identification of at least one from among a collection of predetermined shapes and indicia along the road indicating a road intersection between the lane or road traveled by the vehicle and an incident lane or road, whereby the movement of at least one rear-view device is actuated for representing to the driver a rear and side scene with respect to the vehicle comprising the incident lane or road.

System and method for driving assistance at road intersections

A method of fabrication of transparent LED devices, of the type comprising the operations of: i) providing a series of conductive paths on a transparent underlayer; ii) connecting said conductive paths to electronic control means; iii) associating to said underlayer an array of LED sources addressable individually or in groups through said conductive paths, in which i) said LED sources are integrated in the form of chips, i.e., of elements obtained by dividing up a semiconductor wafer and without package, via technologies of the chip-on-board type; ii) said method envisages the use of the flip-chip technique for die bonding, i.e., the electrical connection of the chip to the underlayer.

Method for manufacture of transparent devices having light emitting diodes (LED)

A light concentrator is described, for a device for the conversion of solar radiation into electrical, thermal or chemical energy, capable of conveying the radiation towards a surface of the conversion device. The concentrator comprises at least one portion of Fresnel lens of rotational symmetry, one face of which has a plurality of crests disposed concentrically about a center so as to form a segmented transverse profile of the portion of Fresnel lens. The profile is formed in such a manner that the focal distance of the Fresnel lens is variable in dependence on the radial distance from the center of the lens. The variation of the focal distance is determined such that, when the Fresnel lens is illuminated by polychromatic radiation, the superposition of the distributions of irradiance, produced by the lens at the individual wavelengths constituting the spectrum of the incident radiation, generates a substantially uniform distribution of polychromatic irradiance on the conversion device.

Multifocal light concentrator for a device for the conversion of radiation, and in particular for the conversion of solar radiation into electrical, thermal or chemical energy

Described herein is a transparent device for display of information superimposed on a background, said device comprising a plurality of LED sources, addressable individually or in groups through a series of conductive paths deposited on a transparent underlayer and connected to a control electronics, in which: i) said LED sources are integrated in the form of dice, i.e., of elements obtained by dividing up a semiconductor wafer and without package; and ii) at least one of said conductive paths is with interrupted stretches and replaced by stretches of metal wire, bonded to said paths through a wire-bonding operation.

Transparent LED display and method for manufacture thereof

Described herein is a transparent-display device for motor vehicles, to be used for presentation of information to the driver and/or to the passengers, said device comprising a plurality of LED sources, addressable individually or in groups through a series of conductive paths, deposited on a transparent underlayer and connected to a control electronics, in which: i) said LED sources are integrated in the form of dice, i.e., of elements obtained by dividing up a semiconductor wafer and without package; ii) said dice are integrated on, and electrically connected to, said underlayer via technologies of the chip-on-board type; and iii) said transparent underlayeris pre-arranged for being at least in part superimposed on the windscreen of the vehicle, in such a way that at least part of the information presented to the user is superimposed on the background, said background being visible to the user through said windscreen.

Transparent LED display

A system for the production of electrical energy, comprising: a combustion chamber () made of material that is able to withstand high temperatures, an injection device () connected to said combustion chamber () by means of an injection conduit (), means () for supplying combustion support substance into the combustion chamber () and means () for the removal of gaseous combustion products, means () for the selective emission of radiation onto the outer surface of the combustion chamber (). The combustion chamber () is enclosed in a conversion chamber () within which are maintained sub-atmospheric pressure conditions, so that a substantial part of the heat developed by the combustion reaction is converted into electromagnetic radiation.

Micro-combustor system for the production of electrical energy

A luminous display for automotive satellite navigation systems includes a panel equipped with light sources, for example made up of LEDs, arranged in a pre-ordered configuration of discrete segments, which can be combined with one another according to paths corresponding to the representation of a plurality of encoded generally arrow-shaped pictograms, each of which indicates a respective direction to follow indicated by the navigation system. The path to follow is highlighted with respect to possible alternative paths represented by the pictograms.

Luminous display for automotive satellite navigation systems

An optical module for projecting a light beam comprises a solid body of transparent material into which a light source is sunk and which is delimited by an annular surface and by a central surface, and a substantially annular reflecting surface arranged around the solid body. The central and annular surfaces are suitable for receiving respective distinct portions of the luminous flux produced by the source. The reflecting surface may have a reflecting coating or may form part of a transparent body, in which case it works by total internal reflection. The reflecting surface reflects a portion of luminous flux refracted by the annular surface and shapes the flux into a predetermined distribution of luminous intensity about the principal axis. The annular surface is designed in a manner such as to reduce the overall thickness of the module by moving the refracted ray away from the principal axis. The central surface shapes the other portion of the luminous flux emitted by the source into a predetermined distribution of luminous intensity about the principal axis. The surfaces cooperate so as to shape the luminous flux as a whole emerging from the source into a distribution of luminous intensity having divergences which may be different in two directions that are perpendicular to one another and to the principal axis.

Module for projecting a light beam

An optical element and module for the projection of a light beam, and motor vehicle lamp including a plurality of such modules An optical element for the projection of a light beam comprises a solid body () of transparent material in which is formed a cavity () able to receive a light source (), the cavity () extending along the principal axis (z) of the transparent body () and being delimited by a radially inner surface () and a terminal surface () of the transparent body (). The surfaces () are able to receive separate respective portions (I, II) of the light flux generated by the source (). The transparent body () further has a radially outer surface () which surrounds the radially inner surface (). The radially outer surface () reflects the portion of the light flux (I) coming from the radially inner surface () along a direction substantially parallel to the principal axis (z). The transparent body () has, on the opposite side, a central surface () and an annular surface () surrounding the central surface (), able to receive that portion (II) of the light flux and the reflected portion of the light flux (I) respectively and to transmit these light flux portions (I, II) in directions having predetermined orientations with respect to the principal axis (z). At least one of the surfaces () is rotationally asymmetric with respect to the principal axis (z) of the transparent body (). The surfaces () cooperate in such a way as to shape the overall light flux (I, II) emitted by the central and annular surfaces () into a light intensity distribution having different divergences in two 25 directions perpendicular to one another and to the principal axis (z).

Optical element and module for the projection of a light beam, and motor vehicle lamp including a plurality of such modules

A module for projecting a light beam comprises: a light source suitable for producing the light beam, a substantially flat support surface on which the source is arranged in a manner such as to emit the light beam from only one side of the surface, and a curved reflecting surface which extends on one side of the support surface and has its concavity facing towards the support surface, and which is capable of reflecting the light beam originating from the source in a principal direction substantially parallel to the support surface of the source, the reflecting surface being divided into a plurality of reflecting areas suitable for receiving respective portions of the light beam. The plurality of reflecting areas comprises at least one area such that the portion of the light beam reflected by that area is substantially collimated in a vertical direction and has a small horizontal divergence &#x3b1; less than a first predetermined angular value &#x3b1;, and at least one area which is designed in a manner such that the portion of the light beam reflected by that area has a wide horizontal divergence &#x3b1; greater than a second predetermined angular value &#x3b1;. The area with wide horizontal divergence has a substantially elliptical horizontal cross-section parallel to the flat support surface with one of its foci substantially coinciding with the source and a substantially parabolic vertical cross-section with an axis substantially parallel to the flat support surface and with its focus substantially coinciding with the source.

A light-emitting device comprises a light source in the form of an incandescent filament, a substantial part of which is integrated in a host element having at least one portion structured according to nanometric dimensions. The nano-structured portion is in the form of a photonic crystal or of a Bragg grating for the purpose of obtaining an amplified or increased emission of radiation in the region of the visible.

Light emitting device with photonic crystal

An optical system for image projection, particularly for projection devices of the 'head-mounted'type, includes a display, an optical system for focusing an image formed by the display, and a light guide having an extended body, with two opposite, longitudinal, plane and parallel faces, and opposite ends which define first reflecting surface for coupling into the light guide and second reflecting surface for extracting the image from the light guide. Each light ray which propagates through the light guide undergoes at least three internal total reflections on the parallel plane faces of the light guide. At least a surface of the focusing optical system is a portion of a surface free of rotational symmetry axes. Moreover, the two reflecting surfaces of the light guide are portions of surfaces free of rotational symmetry axes. Finally, the inlet pupil of the light guide coincides with the outlet pupil of the focusing system.

Optical system for image transmission, particularly for projection devices of the head-mounted type

A module for projecting a light beam comprises a light source and a substantially flat support surface on which the source is arranged in a manner such as to emit light from only one side of the surface, and a reflector for reflecting the light emitted by the source. The reflector comprises a curved reflecting surface which extends on one side of the support surface, has a concavity facing towards the support surface, and can reflect the light coming from the source in a principal direction substantially parallel to the support surface of the source. An optical device for a module according to the invention and a vehicle front light assembly comprising a plurality of modules according to the invention form further subjects of the invention.

Module for projecting a light beam, an optical device for the module, and a vehicle front light assembly

An aircraft which is attachable to, for example, a cellular phone. The aircraft is provided with at least four rotors actuated with compressed fluid or by ring-shaped electric motors.

Microaircraft and cellular phone equipped with microaircraft

The lighting device comprises a light source and an associated hollow reflector of transparent material having an internal surface and an external surface which are close to and far away from the source respectively. The inner surface of the reflector has in cross section at least one transverse plane passing through the source a discontinuous profile forming a plurality of adjacent steps each of which has a first face through which rays originating from the source can pass and a second face essentially parallel to the rays originating from the source. The outer surface of the reflector has a profile comprising one or more arcs of curves. The reflector is constructed and positioned in such a way that in the said transverse plane most of the rays emitted by the source are reflected through the first face of the steps on its inner surface and strike its outer surface undergoing total internal reflection and after passing back through the reflector emerge from it through the second faces of the steps on its inner surface undergoing a second refraction.

Growing community of inventors

Orbassano, Italy

Denis Bollea