Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
  • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
  • F24S20/50—Rollable or foldable solar heat collector modules
  • F24S20/55—Rollable or foldable solar heat collector modules made of flexible materials
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
  • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
  • F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
  • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
  • F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
  • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
  • F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
  • H02S30/00—Structural details of PV modules other than those related to light conversion
  • H02S30/10—Frame structures
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
  • H10F71/00—Manufacture or treatment of devices covered by this subclass
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
  • H10F77/00—Constructional details of devices covered by this subclass
  • H10F77/10—Semiconductor bodies
  • H10F77/16—Material structures, e.g. crystalline structures, film structures or crystal plane orientations
  • H10F77/169—Thin semiconductor films on metallic or insulating substrates
  • H10F77/1698—Thin semiconductor films on metallic or insulating substrates the metallic or insulating substrates being flexible
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
  • H10F77/00—Constructional details of devices covered by this subclass
  • H10F77/40—Optical elements or arrangements
  • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
  • H10F77/484—Refractive light-concentrating means, e.g. lenses
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
  • H10F77/00—Constructional details of devices covered by this subclass
  • H10F77/40—Optical elements or arrangements
  • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
  • H10F77/488—Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
  • H10F77/00—Constructional details of devices covered by this subclass
  • H10F77/60—Arrangements for cooling, heating, ventilating or compensating for temperature fluctuations
  • H10F77/63—Arrangements for cooling directly associated or integrated with photovoltaic cells, e.g. heat sinks directly associated with the photovoltaic cells or integrated Peltier elements for active cooling
  • H10F77/67—Arrangements for cooling directly associated or integrated with photovoltaic cells, e.g. heat sinks directly associated with the photovoltaic cells or integrated Peltier elements for active cooling including means to utilise heat energy directly associated with the photovoltaic cells, e.g. integrated Seebeck elements
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
  • Y02B10/00—Integration of renewable energy sources in buildings
  • Y02B10/20—Solar thermal
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E10/00—Energy generation through renewable energy sources
  • Y02E10/40—Solar thermal energy, e.g. solar towers
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E10/00—Energy generation through renewable energy sources
  • Y02E10/40—Solar thermal energy, e.g. solar towers
  • Y02E10/44—Heat exchange systems
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E10/00—Energy generation through renewable energy sources
  • Y02E10/50—Photovoltaic [PV] energy
  • Y02E10/52—PV systems with concentrators
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/4935—Heat exchanger or boiler making
  • Y10T29/49355—Solar energy device making

Definitions

• the present invention relates to solar thermal and / or photovoltaic collectors and more particularly to the visual integration of these sensors by making it possible to visualize an image on their surface.
• the discrete visual integration of solar collectors is particularly useful in objects whose main function is to shield, at least partially, the sun's rays, as for example in the case of blinds, sunshades, parasols, shades and others.
• solar collectors can also be useful in a wider range of supports, such as buildings, roofs, walls, tiles, glazing, transport vehicles, including boats and planes , advertising panels and screens, electronic screens, clothing, and generally on any flat or non-planar support.
• a first problem is due to the generally dark appearance of known solar collectors, which hinders a good visual integration of these sensors on supports of different color to that of the sensors. Indeed, most solar collectors are uniform in color and dark because they consist of materials that are themselves uniform in color and dark as crystalline silicon or amorphous for photovoltaic sensors, and as copper or aluminum covered titanium or a black absorbent for solar thermal collectors.
• the present invention therefore aims to solve these two problems and to provide on the one hand a substantially transparent solar collector, from a visual point of view, and on the other hand to provide a flexible and adaptable solar collector supports no plans.
• the aim of the invention is to solve both problems simultaneously and to propose a solar collector that is both substantially transparent to visible light and sufficiently flexible in large areas to be easily applied to non-planar supports.
• the invention therefore relates to a device for capturing the light energy of a light source, characterized in that it comprises firstly at least one light energy sensor, and a transparent plate disposed between the light source and said sensor and whose first face is structured by a network of slots having their opening either on the side of the front face of the transparent plate exposed to the light source, or on the side of its rear face, so as to to allow flexing of the transparent plate, while the second face of the transparent plate contains pixel areas of an image, and areas of transparency.
• the slots arranged directly in the face of the transparent plate which faces the light source allow a bending or even a winding of the device about an axis substantially parallel to the longitudinal axis of the slots.
• the second result is that certain incident light rays coming from the light source are reflected on the walls of the slots and redirected towards the light energy sensor, for example a photovoltaic sensor, and consequently the device captures more energy. while ensuring that the sensors remain invisible to an observer in a wider angular field.
• the surfaces of said first face of the transparent plate which are located between two consecutive slots are planar. But according to another embodiment of the device, these surfaces may have a prism shape.
• the transparent plate is for example mineral glass, organic glass, a polymer such as PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), or polycarbonate, or silicone.
• the slots of the transparent plate are for example parallel to each other and the distances between them are all identical.
• the depth of the slots is such that it leaves a thickness of material between the bottom of the slot and the rear face of the plate. This thickness of material is sufficiently small to allow deformation or bending at this point but without causing breakage. But the slots may also be through, the plate then consisting of a plurality of transparent rules separated by an air gap and fixed on a flexible support for bending the device.
• the solar collector can be of any kind, for example thermal and / or photovoltaic or chemical. If it is photovoltaic, it can be in crystalline or amorphous silicon or in thin or organic layers. If it is thermal it can be made of copper, aluminum, PVC (polyvinyl chloride), traversed by a coolant or by a gas like the air.
• the solar collector can be rigid or even flexible, even along a single axis. Of course the solar collector will be connected to an electrical or hydraulic circuit to allow its proper operation and recovery of the energy generated.
• the pixelated areas and transparency areas of the transparent plate have a shape, a size and are positioned relative to the slots so that at certain viewing angles an observer looking at the front will only see the pixelated areas that will combine between them to allow the visualization of an image on all the surface of the plate, whereas under other angles the direct or indirect solar radiation will be refracted on the surface of the plate, will cross the zones of transparency then will activate the solar sensor which is behind the plate.
• the opposite faces inside each slot are sufficiently polished so that these surfaces have the property of reflecting certain light rays coming from inside the plate.
• This optical reflection is due to the difference in refractive index between the transparent material of the plate and the air that is contained in the slots. Part of the rays coming from a light source, especially from the sun, will thus be reflected on the walls of the slits and will pass through the zones of transparency, while other solar rays will pass directly through the zones of transparency without being reflected on the surface. slots.
• the amount of light that will pass through the areas of transparency and reach the solar collector will then be greater than the amount of light that would have passed through the areas of transparency if the slits did not exist, which will have the effect of increasing the yield of energy production of the device.
• the mirror-like optical reflection on the walls of the slits also acts for the outgoing rays coming from the pixelated zones, which allows an observer to visualize all the pixelated zones, therefore an entire image, at much greater angles than if the slits did not exist.
• the visual integration of the device on a support will be effective over a wider angular range than in the absence of slots.
• the presence of slits induces the property of making the plate capable of bending along these slots and even, if the slots are straight and parallel, to wind around a cylinder whose axis of rotation is parallel to the longitudinal axis of the slots. Thanks to these slots, the rigidity of the plate is no longer proportional to its thickness, which allows the plate to use large thicknesses, for example of one or more millimeters while having good flexibility.
• the thickness of the plate then allows to have pixelated areas whose dimensions can be of the same order of magnitude as the thickness of the plate which will facilitate their manufacture and the accuracy of their positioning.
• the slots have their opening either on the side of the front face exposed to the light source or on the side of the rear face.
• the side of the plate where the opening of the slots is located determines the direction of bending or winding of this plate, namely that this bending or winding will be around an axis which will be the opposite side to the opening of the slots.
• the slots are preferably perpendicular to the surface of the plate, but to control the viewing angles and the transparency angles, the slots may be inclined with respect to the perpendicular to the plate by a non-zero angle.
• the front face of the transparent plate will have undergone antireflection treatment.
• the front plate is covered by another plate or a transparent film, rigid or flexible, so as to protect the slots against the incrustation of soiling.
• This protection plate can also be treated on its external face against reflections.
• the solar collectors cover only the areas of transparency and not pixelated areas.
• the solar collectors such as thin-film photovoltaic cells, may have the same shape and size as the transparency areas, and alternate with them.
• the pixelated zones consist of electronic pixels generated by backlit components.
• LCDs Liquid Crystal Display
• electroluminescent ones such as LEDs ("Light Emitting Diode”) or OLEDs ("Organic Light Emitting Diode”)
• LEDs Light Emitting Diode
• OLEDs Organic Light Emitting Diode
• even reflecting pixels of the colored filter type on a mirror surface or still pixels whose color is determined by an optical diffraction grating effect, or whose color reflection is determined by a light interference effect.
• the support of the electronic pixels may be rigid or flexible.
• the electronic pixel carriers although not shown, will contain all the electrical connections necessary for their operation.
• the solar cells preferably photovoltaic cells
• the solar cells are positioned on one of the two faces of the slots and the pixelated areas cover all or part of the rear face of the plate.
• the slots delimit (or are delimited by) cylindrical shapes whose longitudinal axes are perpendicular to the plate.
• the base of the cylindrical shapes may be circular or polygonal, for example hexagonal, and contains a pixelated zone and / or a zone of transparency, with at the rear of the plate a solar thermal or photovoltaic sensor.
• an observer will then see only the pixelated zones, so overall an image, while solar rays, direct or after reflection on the walls of the cylinders, will reach the solar collector after having crossed the areas of transparency .
• the cylindrical shapes in question may be miniaturized and take the dimensions and characteristics of optical fibers such as diameters of less than 500 microns.
• the pixelated areas are not covered by the solar panels and are wholly or partly transparent to the light, which will allow an observer positioned on the rear side of the plate to receive at least one part of the light, especially solar, received by the front side of the plate.
• the slit air knives completely separate the different parts of the plate from each other, and a transparent film is then adhered to the entire rear face of the plate in order to keep these parts in position relative to one another. to others.
• This transparent film may be rigid or flexible, the latter case will then fold the plate at the air blades and thus obtain the general flexibility of the plate.
• the invention finds its main applications in the case where the light source is the sun, and said light energy sensor is then a solar collector of thermal, photovoltaic, or chemical type.
• the subject of the invention is also a method of manufacturing a device as above, characterized in that it comprises the steps of:
• the method of manufacturing the device comprises the steps of:
• the manufacturing method comprises steps of supplying a transparent plate having two parallel planar faces configured as above with zones of transparency and pixelated zones, then arranging in one or both sides a network slits by molding, thermoforming, or extruding.
• Figure 1 is an elevational view in section of a solar collector element according to the invention
• Figure 2 is an elevational view in section of the solar collector of Figure 1, in a curved position;
• Figure 3 is a cross-sectional view of a set of solar collectors according to Figures 1 and 2, wound around an axis;
• FIG. 4 is an elevational view in section of a first variant of solar collector according to Figure 1;
• Figure 5 is an elevational view in section of a second variant of solar collector according to Figure 1;
• FIG. 6 is a perspective view showing another alternative embodiment of a solar collector according to the invention.
• Figure 7 is a perspective view schematically showing the steps of producing a solar collector according to Figure 1;
• FIG 8 is a view by schematically showing the steps of an alternative method of producing the solar collector according to the invention.
• the figures are not to scale, the relative thickness of the device being exaggerated to better show the structure.
• a transparent plate 1 made of glass or organic glass has its flat front face and structured by a series of slots 2 whose two faces are flat and polished.
• these slots 2 are perpendicular to the two front and rear faces of the transparent plate 1, and these slots may preferably be rectilinear and parallel to each other.
• front face of the transparent plate is meant that which directly faces an observer and receives directly the light radiation of a light source, including the sun as shown.
• the areas of the front face that are located between two consecutive slots and which are shown planar could equally well take another form, for example the shape of prisms, as these prisms are shaped so that the incident light reaches the areas of transparency 4 or pixel areas 3, either directly or after reflection on the wall of a slot 2.
• the depth 8 of the slots 2 is preferably less than the thickness of the plate 1 so as to leave a material thickness 1 between the bottom of each slot 2 and the rear face of the plate, this thickness of material 11 being quite low to allow some bending of the plate without breaking it.
• the surface delimited by two consecutive slots comprises a transparent area 4 and a pixel area 3, also called pixelated area.
• these two respective zones 4, 3 may preferably be transparency bands and image bands parallel to the longitudinal axis of the slots.
• the incident light rays 6 will refract on the front face of the plate 1, then reach the areas of transparency 4 at the rear of the plate before reaching the solar sensor 5, while from other angles an observer 7 can see the pixels 3 through the plate.
• the rear face of the transparent plate 1 is entirely covered by a solar sensor 5 which thus also covers the pixelated areas 3 of the image.
• the solar collectors 5 cover only the transparent areas 4 of the plate 1, and not its image areas.
• the solar collector (s) 5 can be of any type, thermal or photovoltaic, rigid or flexible.
• the distance between the consecutive slots 2 and their thickness 8 can be varied. the scope of the skilled person according to each specific application given.
• the image zones 3 are typically pixels that emit colored light.
• This light may be light from ambient light reflected on colored substrates, such as printed or painted paper or film, mirror-like reflective substrates covered with colored filters, or whose color is determined by a color effect. optical diffraction grating, or whose color reflection is determined by a light interference effect.
• This light can also be light from an electronic light source (such as LEDs, OLEDs or LCDs), provided with a backlight. food electrical of these lighting devices is not illustrated.
• Figure 2 illustrates the device of Figure 1 in a bending position. During this bending, the slots 2 whose walls were parallel in Figure 1, now deviate from each other to form an opening angle which is larger than the bending is important.
• the photovoltaic film of the solar collector 5 is itself flexible in this example, so that its surface remains close to the rear face of the plate.
• Figure 3 illustrates the device according to the invention in a winding position about an axis or a cylinder.
• the sunscreen device according to the invention is wound around a cylinder 25 which can rotate about its longitudinal axis 26.
• the opening of the slots 2 is oriented towards the outside of the winding, and the longitudinal axis of the slots is parallel to the winding axis 26.
• FIG. 4 illustrates the device according to the invention in a particular embodiment where the slots 2 are inclined relative to the perpendicular to the surface of the transparent plate 1.
• the plate 1 is then structured on its front face by slots 2 whose walls are inclined at an angle (A) with respect to the perpendicular to the surface of the plate.
• the rear face of the plate 1 still contains, as in the embodiment according to FIG. 1, alternating image zones 3 and transparency zones 4 between the slots 2.
• a solar sensor 5, for example photovoltaic, is positioned at the rear of the camera. the plate and covers it over its entire surface.
• FIG. 5 schematizes an alternative embodiment of the device according to the invention, in which the surfaces of solar collectors 12 are positioned no more on the back of the transparent plate, but directly on one side of each slot 2.
• the rear face of the transparent plate 1 always comprises, between the slots 2, image zones 3 and transparency zones 4.
• an observer 13 placed in front of the sunscreen will see by transparency the image areas 3 of the plate 1. It will also see a possible support disposed behind the plate, through the areas of transparency 4. But the observer 13 does not will almost no solar collectors 12 which are positioned or glued here on the lower wall of the slots 2, insofar as these slots are substantially in the extension of its axis of vision.
• the solar rays 6 or the ambient light coming from above are refracted on the surface of the transparent plate 1 and reach the solar collectors 12 situated on the slits and which are in this example in a horizontal position.
• the sunscreen shown provides a possibility of bending or winding around an axis parallel to the longitudinal axis of the slots 2.
• FIG. 6 represents a variant of the device according to the invention when the slots 2 are no longer bounded by planar faces, but by cylindrical shapes 14.
• the transparent plate 1 is then structured on its front face by slots or interstices whose walls are non-planar and delimit for example outlines that take the form of circles.
• the result is a juxtaposition of cylinders 14 whose longitudinal axis is perpendicular to the transparent plate 1, and whose height is slightly less than the thickness of said plate
• each cylinder 14 At the base of each cylinder 14 are positioned a transparency zone 16 and a pixel zone 15. Part of the light entering each cylinder 14 is directed towards the zone of transparency 16 and reaches the solar sensor 5 located behind it, while that an observer, under certain viewing angles, will only see the pixels 15, and therefore globally an image. Finally, at certain angles of incidence, the incident light passing through the zones of transparency 16 will reach the solar collector 5 and will therefore produce energy, whereas an observer observing the structure from other angles, will not be able to see the areas of transparency 16 and the solar collector 5 behind, but will see only the pixel areas 15 and therefore an image, separate from the solar collector.
• FIG. 7 represents the principle of a method of manufacturing a device according to the invention.
• a laser beam is used for making the slots 2 of the transparent plate 1.
• the front face of a transparent plate 1 is subjected to a laser beam 17 so as to create slots 2 whose depth 8 is less than or equal to the thickness of the plate 1.
• the slots 2 are preferably rectilinear and perpendicular to the surface of the plate 1.
• the distance 20 between the bottom of the slots 2 and the rear face of the plate is sufficiently small to allow bending at this point without breakage.
• a first variant of the manufacturing method consists in printing the pixel areas 3 on a transparent film 25 and in bonding this film to the rear of the plate 1 by matching the pixel areas 3 with the zones delimited by two consecutive slots 2 .
• This film 25 can also advantageously serve to maintain the various parts in place, particularly in an embodiment in which the depth of the slots 8 is equal to the thickness of the transparent plate 1.
• Behind the plate 1 is positioned or glued the solar collector 5 which, in this non-limiting example, is flat and covers the entire plate.
• Figure 8 shows the principle of an alternative method of manufacturing the device according to the invention. It consists, to make the transparent plate 1 and the slots 2, to juxtapose a series of transparent rules 24, which are glued on a transparent film 25 serving as a support.
• the section of the transparent rules 24 is for example square.
• the rulers 24 are juxtaposed next to each other leaving an air film between two adjacent rulers, thus producing slots 2 as previously explained.
• the transparent film 25 may itself be flexible. It will have been previously printed strips of rectilinear images 3 and parallel to the longitudinal axis of the rules. The width of the image bands 3 will for example be half the width of the rules 24.
• Each image band 3 is positioned in front of a ruler 24.
• Transparency bands 4 appear between two consecutive image bands 3.
• a solar sensor 5 is supplied and positioned at the rear of this device. This solar collector 5 will have its active face turned towards the rules 24.
• the solar collector 5 may be glued to the structure, or separated by an air knife if it is a thermal sensor.
• a flexible transparent polyester film of 30 cm by 70 cm of sides and 0.1 mm thick is printed on one of its faces with strips of pixels 1 mm wide which are spaced apart by bands of transparency of 1 mm wide.
• the other side of the film is self-adhesive. Pixel bands are predominantly orange in color. It supplies 35 transparent rules in PM A 70 cm long whose section is square and each side is 2 mm. These rules are then placed side by side on the printed film on the side of its self-adhesive side so that the face of the rulers which is stuck to the film completely covers a strip of pixels and a band of transparency.
• the film on which the rules were glued is mechanically fastened to the surface of a photovoltaic solar collector of the same dimensions as said film and so that said film is in contact with the solar collector.
• the solar collector is then positioned on the orange tiles of a roof facing South, or instead of the tiles it covers, so that the longitudinal axis of the rulers is horizontal and so that the image bands are up the roof.
• This configuration is only a simplified example of manufacturing and visual integration of a black solar panel on an orange roof that uses the method object of the invention.
• the printing is done with UV inks and the image strips and the transparency strips are parallel to the width already plate.
• the unglued side of said plate is scanned by a laser beam so as to create rectilinear slots parallel to the image bands, these slots are positioned above a junction between image band and transparency band, and are spaced apart from each other. 1 mm so that the space between two slots includes exactly one image band and a transparency band.
• the depth of the slots is 1 mm.
• the plate thus structured by the slots becomes flexible and can be wound around a hollow, rigid metal tube 5 cm in diameter and positioned parallel to the slots. The whole is the essential part of a roll-up photovoltaic awning.
• the awning When the awning is unrolled in front of a window on the first floor of a dwelling, its surface is arranged vertically and an observer placed below will only see the white image bands, therefore the surface of the overall white blind, while the solar radiation which comes mainly from the top will completely cross the plate and activate the photovoltaic effect of the sensor.
• the production of the electric current produced by the awning can for example charge a battery which will be used to power an electric motor for the winding and automated unwinding of the blind.
• This configuration is only a simplified example of the manufacture and visual integration of a photovoltaic blind placed in front of a building window, and which uses the device and method objects of this invention.
• the device object of the invention will make it possible to make the solar collectors sufficiently flexible to be able to give them various shapes and / or to wind them around for example a cylinder, while retaining thicknesses compatible with industrial fabrications.
• the device that is the subject of the invention will moreover allow viewing angles of the images and the angles of capture of the solar radiation over a larger angular range, which can be in total up to 180 °.
• the invention is particularly adapted to the visual integration of solar collectors in blinds, sunshades, sunshades, parasols, shades, roofs, walls, tiles, glazing, transport vehicles , including boats and airplanes, advertising panels and screens, electronic displays, clothing, and generally any imagery, including electronic images, and on all flat or non-flat surfaces.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Sustainable Development (AREA)
• Sustainable Energy (AREA)
• Thermal Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Photovoltaic Devices (AREA)
• Illuminated Signs And Luminous Advertising (AREA)
• Devices For Indicating Variable Information By Combining Individual Elements (AREA)
• Curtains And Furnishings For Windows Or Doors (AREA)
• Manufacturing & Machinery (AREA)
• Photometry And Measurement Of Optical Pulse Characteristics (AREA)

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• 2011
  • 2011-10-18 FR FR1103192A patent/FR2981438B1/fr active Active
• 2012
  • 2012-10-16 JP JP2014536306A patent/JP2015502511A/ja not_active Ceased
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• 2014
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