EP3063586A1 - Optical device giving a raised appearance to an image that partially covers a luminous energy sensor - Google Patents

Optical device giving a raised appearance to an image that partially covers a luminous energy sensor

Info

Publication number
EP3063586A1
EP3063586A1 EP14802934.1A EP14802934A EP3063586A1 EP 3063586 A1 EP3063586 A1 EP 3063586A1 EP 14802934 A EP14802934 A EP 14802934A EP 3063586 A1 EP3063586 A1 EP 3063586A1
Authority
EP
European Patent Office
Prior art keywords
sensor
transparent plate
image
bands
angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14802934.1A
Other languages
German (de)
French (fr)
Inventor
Olivier Gagliano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sunpartner Technologies SAS
Original Assignee
Sunpartner Technologies SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunpartner Technologies SAS filed Critical Sunpartner Technologies SAS
Publication of EP3063586A1 publication Critical patent/EP3063586A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/028—Viewing or reading apparatus characterised by the supporting structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/14—Advertising or display means not otherwise provided for using special optical effects displaying different signs depending upon the view-point of the observer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
    • G09F27/007—Displays with power supply provided by solar cells or photocells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0543—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the refractive type, e.g. lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/324—Colour aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/398—Synchronisation thereof; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2213/00—Details of stereoscopic systems
    • H04N2213/001—Constructional or mechanical details
    • 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
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention relates to optical devices that give a relief aspect to image areas placed in front of a light energy sensor.
  • the discrete visual integration of light energy sensors such as solar collectors, typically of dark appearance, is particularly useful in objects whose main function is to shield, at least partially, solar rays, as for example in blinds, sunshades, parasols, shade houses and others.
  • a good visual and functional integration of solar collectors can also be useful in a wider range of supports, such as buildings, roofs, walls, tiles, glazing, transport vehicles, including buildings and airplanes. advertising billboards, watches, portable electronic display devices, clothing, backpacks and in general on any plan or non-plan support.
  • Patent WO / 2007 / OS5721 (Sunpartner Technologies) and WO / 2010/067029 (Saint-Gobain Glass) are already known more particularly from optical devices composed of a network of rectilinear lenses and an array of image zones placed opposite each other. lenses that allow an observer to view alternately either the image reconstructed by the lenses or solar collector which is placed behind the device. The visualization of the image or of the solar collector then depends on the angle of observation with respect to the optical surface, when the lenses are rectilinear and cylindrical, this alternation repeats around every 25 °.
  • the present invention aims to solve these problems and to overcome the aforementioned drawbacks of the state of the art, by proposing a new optical device structure. Rather than seeking to completely mask the sensor, this new integration approach consists in making part of its surface visible, partially covering it with an image and giving an illusion of three-dimensionality and / or relief to said system. so that the sensor becomes attractive or fun for the observer. Objects of the invention
  • the object of the invention is constituted by a device as defined in the claims.
  • the device according to the invention comprises at least:
  • an optically structured transparent plate disposed between said external light source and said sensor, comprising a first face referred to as a "front face” that is oriented toward said external light source and a second face as “a face” back “which is oriented towards said sensor, said transparent plate being optically structured on one of its two faces at least by a plurality of optical elements rectilinear and parallel to each other;
  • Said device is characterized in that the longitudinal axis of the image bands is inclined at a non-zero angle with respect to the longitudinal axis of the optical elements of the transparent plate, so that said images seen through the transparent plate appear with an aspect of relief, while the energy output of the sensor remains substantially constant regardless of the angle of incidence of said external light on the device.
  • the total area of the image bands is substantially identical to the total surface of the transparency bands.
  • the angle of inclination between the longitudinal axis of the lenses and the longitudinal axis of the image bands is between 35 'and 70 ", so that the appearance of said images remains substantially constant according to the viewing angle of the device, Said strips are fixed or animated picture and consist of a multitude of pixels opaque, reflective or semi-transparent, printed or electronically generated by retro-éciairés components, electroluminescent or reflective.
  • Said strips are fixed or animated picture and consist of a multitude of pixels opaque, reflective or semi-transparent, printed or electronically generated by retro-éciairés components, electroluminescent or reflective.
  • Said image bands may be positioned between the sensor and the rear face of the transparent plate, or downstream of said sensor, the downstream term referring to the direction of propagation of light from the external light source to the device.
  • Said image bands may also be in contact with said sensor and / or said rear face of the transparent plate, or separated from these surfaces by a material of refractive index different from that of the transparent plate. In this way, it is possible to position the image strips either directly on the back of the transparent cover. either on a transparent support which is then disposed against said rear face of the transparent plate. In the latter case, said transparent support can be separated from said rear face of the transparent plate and / or said sensor either by air or by an adhesive optical refractive index close to that of the transparent plate.
  • the first solution gives the possibility of replacing the image of the device without changing the transparent plate or the sensor while the second solution avoids parasitic reflections and losses of light energy at the interfaces.
  • the light energy sensor is a solar collector of thermal type, photovoltaic, chemical or mixed, yaw or curved, rigid or flexible.
  • this luminous energy sensor is composed of solid or semitransparent active zones contiguous or separated from each other by zones of transparency.
  • the optical elements of the transparent plate are:
  • the optical structuring of the transparent plate can be carried out on only one of its faces or both, with geometric shapes that can be identical or different.
  • the transparent plate, the image bands and the sensor are contained in planes which are advantageously parallel to each other, but can undergo a deformation such that these plane surfaces become curved surfaces, in particular in the case of a flexible device.
  • the optical elements of the transparent plate and the image bands are organized into networks of elementary structures.
  • the elementary term qualifies the smallest pattern of the network which, once repeated, constitutes said network and the regular spacing between two identical points of two adjacent elementary patterns defines the pitch of the network.
  • the color and shape of these patterns depend on both the color of the sensor, the shape of the network of optical elements of the transparent plate and finally of the color and the shape of the image band network,
  • the transparent plate and the image bands are fixed or mobile with respect to the sensor, for example undergoing translation and / or rotation.
  • the transparent plate consists of a solid, liquid or gaseous transparent material, such as mineral glass, organic glass, or a polymer of the PMMA, PET or polycaronate type, and can be flat or curved, rigid or flexible, colored in its mass or colorless.
  • one of the two faces of said at least one transparent plate is covered with a functional surface having an additional function other than the simple transmission of light, for example an antireflection effect, anti-fouling or Sun Creme.
  • the image bands are illuminated by one or more light sources, most of the light propagates in the thickness of the transparent plate which acts as a waveguide , or in an additional transparent plate placed upstream or downstream of the transparent plate, the upstream and downstream terms referring to the direction of propagation of the light from the light source to the device.
  • the light energy sensor is a photovoltaic sensor provided with electron collection gates on the surface of said sensor, and a portion of the surface of said image bands is constituted by the visible face. electron harvesting grids.
  • thee light energy sensor is replaced by any non-functional support, as a dark appearance of light energy sensor.
  • any non-functional support as a dark appearance of light energy sensor.
  • FIGS. 1a and 1 show schematically the structure of a device according to the state of the art
  • FIGS. 2a, 2b and 2c show schematically the structure of a device according to the invention
  • FIGS. 3a, 3b and 3c show in a view from above the appearance of the device according to the invention in function of various angles of observation and respective orientations of the transparent plate and the image bands;
  • FIGS. 5a and 5b compare the electrical output as a function of the angle of incidence of the light for a device known from the state of the art and for the device which is the subject of the invention.
  • FIG. 1 corresponds to a three-dimensional view ( Figure 1a) and a cross-sectional view ( Figure 1b) of a known device according to the patent application WO / 2007/08572.
  • This device 14 comprises a transparent plate 1 optically structured and disposed between an observer 8 and a light energy sensor 5.
  • the front face 2 of said transparent plate 1 is composed of a network of cylindrical rectilinear lenses of plano-convex types.
  • the rear face 6, plane contains a network of image bands 3 and bands of transparency 4.
  • the longitudinal axis of said bandos (3,4) is parallel to the longitudinal axis of the lenses, and the pitch of the lens array is the same as the pitch of the image band network.
  • FIG. 1a the longitudinal axis of said bandos (3,4) is parallel to the longitudinal axis of the lenses, and the pitch of the lens array is the same as the pitch of the image band network.
  • 1b is a cross-sectional view of the device, namely a section along a plane which contains the straight line represented by the double arrow of FIG. 1a and which is orthogonal to the longitudinal axis of the lenses of the transparent plate 1.
  • a first observer 8 'positioned facing the device with an angle of observation with respect to the normal to the lenses sees a light beam T coming from an image band 3. In this position, it therefore sees in appearance the entirety of the image 10 reconstituted by the set of image bands 3.
  • a second observer 8 "whose viewing angle of the device is - however, sees the light beam 7" which has been reflected on the surface of the sensor S and which passes through a region of transparency 4 of the image. In this respect, the second observer 8 "therefore only sees the apparent surface 11 of the sensor 5, generally of a dark color.
  • the known device according to FIG. 1 therefore has the disadvantage of a discontinuity of the viewing ranges of the image zones 3 which cover the sensor 5, and by symmetry of the control ranges and therefore of the energy production of said sensor 5, represented in FIG. 5b and commented thereafter.
  • FIG. 2 illustrates a three-dimensional view (FIG. 2a and two cross-sectional views (FIGS. 2b and 2c) of a device according to the invention.
  • the device consists of a sensor 5 of the light energy coming from a source external light, a plurality of image bands 3 and transparency strips 4, and an optically structured transparent plate 1.
  • the front face 2 of said transparent plate 1 is composed of a network of cylindrical rectilinear lenses, planar-convex types, which advantageously have their focal plane located in the plane of the rear face 6 of the transparent plate 1.
  • the rear face 6, plane contains a network of image bands 3 of width!
  • the longitudinal axis of the image bands 3 is inclined at an angle ⁇ not impaired with respect to the longitudinal axis of the lenses, as shown in Figure 2a.
  • the networks of lenses and image bands 3 are defined p their steps, respectively p and d, which materialize the distance between two lenses or between two adjacent image bands 3.
  • FIG. 2b is a cross-sectional view of the device according to a plane which contains the straight line represented by the double arrow of FIG. 3a and which is orthogonal to the longitudinal axis of the lenses of the transparent plate 1.
  • ⁇ 2 compared to normal to the lentilies
  • an observer 8 sees both light beams 7 'and 7 "respectively reflected by the sensor 5 and by image bands 3.
  • the device according to the invention therefore allows an observer 8 , whatever its angle of observation, to simultaneously see fe sensor 5 and image zones 3, which eliminates discontinuities S appearance of the device known in the state of the art corresponding to Figure 1.
  • the viewer 8 sees his right eye 13 'images different from those seen by his left eye 13 ", as illustrated in FIG. 2c, which allows the observer's brain 8 to recompose a three-dimensional image
  • the right eye 13 * perceives both visible zones 1 of the sensor 5 and image zones 10 ', while the left eye sees only image areas 10 ". It is this phenomenon that gives the image covering the sensor 5 a look-up aspect.
  • FIG. 3 illustrates in plan view three particular embodiments of the device according to the invention 16 shown diagrammatically in FIG. 2, for which the distance between two adjacent image bands 3 is equal to the pitch p between two adjacent rectilinear lenses, and FIG. width 1 of the image bands 3 is equal to half of the pitch p.
  • the three illustrations correspond to different viewing angles.
  • the appearance of the device seen from above changes as a function of the viewing angle ⁇ and the respective orientation of the transparent plate 1 and the image band 3, this orientation being defined by the angle d inclination a.
  • An apparent image area 10 is the visual impression of the observer who sees the image bands 3 through the optically structured transparent plate 1.
  • the complementary zones seen by the observer thanks to the zones of transparency 4 are called apparent zones 1 of the sensor.
  • the resulting network 12b is illustrated in Figure 3b.
  • an illusion of apparent image bands 10b and of apparent sensor bands 1b is obtained.
  • These apparent image bands 10b are the resultant of several associated image bands 3, so that the width of said apparent image bands 10b is a multiple of the width 1 of the image bands 3.
  • the width of the apparent bands 10b is 5 mm and the pitch of the network of strips is 9 mm.
  • the shape of the apparent network 12c remains identical to the network 12b, but shifts in space. Indeed, the set of positions of the apparent image bands 10b observed at an angle ⁇ of 30 ° (FIG. 3b) correspond to those of the apparent sensor bands 11c at an angle ⁇ do 40 ° (FIG. 3c).
  • the device according to the invention therefore makes it possible to improve the visual integration of light energy sensors 5 on supports, regardless of their angular viewing ranges, and whatever the orientation of the device with respect to the source. from light. Moreover, the method of producing such a device does not require very precise registration between the image zones 3 and the transparent plate 1, the appearance of the device does not change significantly when the angle of inclination varies from a few degrees.
  • the device consists of a network of image bands 3 printed on a transparent support 9 placed between a transparent plate 1 optically structured and a sensor 5 of light energy.
  • the front face 2 of said transparent plate 1 is flat whereas the rear face ⁇ is composed of a network of cylindrical rectilinear lenses.
  • the longitudinal axis of the image bands 3 is inclined at an angle ⁇ not affected relative to the longitudinal axis of the lenses.
  • the flatness of the front face 2 avoids clogging of the lenses and facilitates the cleaning of the external surface of the device without the need to add an additional plate that would increase the thickness and cost of the device. device.
  • this surface provides the user with a smooth appearance, which is advantageous in many applications, for example a mobile phone shell.
  • This aspect can be modulated by a micro structuring of the front face 2, so as to extend the range of touches.
  • printing of the strips image 3 on a support 9 which is not glued to the adjacent elements of the device allows to change the appearance of image bands 3, for example their shapes or colors, at lower cost only by replacing the support 9 and not the plate 1,
  • FIG. 5a schematically shows the two devices 14 and 15 respectively defined in FIGS. 1a and 2a, equipped with photovoltaic sensors 5 which are illuminated by a light source 6 whose trajectory is imposed in the plane (OXZ).
  • FIG. 5b shows on the same graph the two electrical production curves of the photovoltaic sensors 6 as a function of the angle of incidence ⁇ of the light, for the known device of the state of the art 14 (continuous line) and for the device object of the invention (point-tilled line).
  • the minimum output corresponds, in effect, to the light source 16 of all the image bands 3, in which configuration the photovoltaic sensor 5 receives only a small amount of light and therefore produces little.
  • the maximum output for it corresponds to the illumination of a multitude of areas of the photovoltaic sensor 5 through the transparency strips 4, said sensor 5 consequently receiving a high light intensity.
  • the device 15 has a small variation in energy production, which does not exceed 12% compared to the average value between the maximum production and the minimum production.
  • the electrical output is therefore substantially constant as a function of the angle of incidence P of the external light 16.
  • the invention achieves the goals set. It describes a device having optical characteristics to give the illusion of relief to an image placed on the surface of a light energy sensor, without the disadvantages of devices known to date.
  • the device which is the subject of the invention will make it possible to improve the visual integration, in particular of light energy sensors, or other elements of the same aspect, independently
  • the invention is particularly adapted to the visual integration of solar panels on the back of displays of display devices such as portable computers and billboards, on the shells of mobile phones, watches, toys, computer keyboards. , blinds, sunshades, sunshades, sunshades, shades, roofs, walls, tiles, transport vehicles, including boats and airplanes, clothing, backpacks and in general on any imaged medium, including electronic images, and on any flat or curved surface.

Abstract

The invention relates to a device comprising at least: (a) a sensor (5) of luminous energy from an external light source; (b) a transparent plate (1) arranged between said external light source and said sensor (5), comprising a first surface referred to as "front surface" (2) which is oriented towards said external light source and a second surface referred to as "rear surface" (6) which is oriented towards said sensor (5), said transparent plate (1) being optically structured on one of the two surfaces thereof (2&6) at least by a plurality of straight optical elements that are parallel to one another; (c) a plurality of image strips (3) separated by transparency strips (4); said device being characterised in that the longitudinal axis of the image strips (3) is tilted by an angle (a) other than zero relative to the longitudinal axis of the optical elements of the transparent plate (1), such that said images (3) viewed through the transparent plate (1) appear with a certain relief, while the energy production of the sensor (5) remains substantially constant regardless of the angle of incidence of said external light on the device.

Description

Dispositif optique donnant un aspect de relief à une image qui recouvre partiellement un capteur d'énergie lumineuse  Optical device giving a relief aspect to an image that partially overlaps a light energy sensor
Domaine technique de l'invention Technical field of the invention
La présente invention se rapporte à des dispositifs optiques qui donnent un aspect de relief à des zones image placées devant un capteur d'énergie lumineuse. The present invention relates to optical devices that give a relief aspect to image areas placed in front of a light energy sensor.
Etat de la technique State of the art
L'intégration visuelle discrète des capteurs d'énergie lumineuse tels que les capteurs solaires, typiquement d'aspect sombre, est particulièrement utile dans des objets qui ont pour fonction principale de faire écran, au moins partiellement, aux rayons solaires, comme par exemple dans des stores, des pare-soleils, des parasols, des ombrières et autres. Mais une bonne intégration visuelle et fonctionnelle des capteurs solaires peut aussi être utile dans une gamme plus vaste de supports, comme les bâtiments, les toitures, les murs, les tuiles, les vitrages, les véhicules de transport, y compris les bsteaux et les avions, les panneaux publicitaires, les montres, les dispositifs d'affichage électronique portables, les vêtements, les sacs à dos et d'une manière générale sur tout support plan ou non pian.  The discrete visual integration of light energy sensors such as solar collectors, typically of dark appearance, is particularly useful in objects whose main function is to shield, at least partially, solar rays, as for example in blinds, sunshades, parasols, shade houses and others. But a good visual and functional integration of solar collectors can also be useful in a wider range of supports, such as buildings, roofs, walls, tiles, glazing, transport vehicles, including buildings and airplanes. advertising billboards, watches, portable electronic display devices, clothing, backpacks and in general on any plan or non-plan support.
Le besoin d'intégrer visuellement des capteurs solaires, notamment des cellules photovoltaïques d'aspect sombre ou noir, dans noire environnement nécessite de les recouvrir d'une couleur ou d'une image semi-transparente, tout en diminuant le moins possible les performances des capteurs solaires. On connaît déjà plus particulièrement des brevets WO/2007/OS5721 (Sunpartner Technologies) et WO/2010/067029 (Saint-Gobain Glass) des dispositifs optiques composés d'un réseau de lentilles rectilignes et d'un réseau de zones image placées en regard des lentilles qui permettent à un observateur de visualiser alternativement soit l'image reconstituée par les lentilles soit te capteur solaire qui est placé derrière le dispositif. La visualisation de l'image ou du capteur solaire dépend alors de l'angle d'observation par rapport à la surface optique, l orsque les lentilles sont rectilignes et cylindriques, cette alternance se réitère environs tous les 25°. The need to visually integrate solar collectors, especially dark or black photovoltaic cells, in black environment requires to cover them with a color or a semi-transparent image, while decreasing as little as possible the performance of solar collectors. Patent WO / 2007 / OS5721 (Sunpartner Technologies) and WO / 2010/067029 (Saint-Gobain Glass) are already known more particularly from optical devices composed of a network of rectilinear lenses and an array of image zones placed opposite each other. lenses that allow an observer to view alternately either the image reconstructed by the lenses or solar collector which is placed behind the device. The visualization of the image or of the solar collector then depends on the angle of observation with respect to the optical surface, when the lenses are rectilinear and cylindrical, this alternation repeats around every 25 °.
Une des principales limitations de ce système tient au fait que, selon la position relative de l'observateur par rapport au dispositif, ledit observateur ne voit pas de manière continue la même image. De surcroît, il faut une distance minimale entre l'observateur et fe dispositif pour que l'ensemble des zones image soient vues dans leur intégralité, il existe donc des positions d'observation pour lesquelles l'observateur ne voit que le capteur ou une image tronquée, ce qui nuit à la pleine intégration dudit capteur. Enfin, la lumière extérieure n'atteint ie capteur solaire que pour des angles cTincidence donnés, ce qui nécessite de positionner de manière adéquate le dispositif par rapport à la trajectoire du soleil. Les phénomènes décrits précédemment limitent les applications du système connu à des systèmes fixes dont les zones angulaires d'observation et de production sont restreintes. One of the main limitations of this system is that, depending on the relative position of the observer with respect to the device, said observer does not see the same image continuously. In addition, a minimum distance between the observer and the device is required for all the image areas to be seen in their entirety, so there are observation positions for which the observer sees only the sensor or an image. truncated, which hinders the full integration of said sensor. Finally, the outside light does not reach the solar collector only for given angles of incidence, which requires to adequately position the device relative to the path of the sun. The phenomena described above limit the applications of the known system to fixed systems whose angular areas of observation and production are restricted.
Une autre limitation de ce dispositif provient de son procédé de fabrication, qui nécessite un calage extrêmement précis entre les zones image et le réseau de lentilles rectiiignes, en particulier pour l'alignement des bandes image par rapport à l'axe longitudinal des lentilies. Ce calage est d'autant plus difficile à obtenir que la résolution du réseau de lentilles, c'est-à- dire le nombre de lentilles par unité de longueur, est faible. En effet, il n'existe pas de moyen autre que manuel pour réaliser cet alignement, ce qui est un frein réel à la commercialisation de tels dispositifs, Another limitation of this device comes from its manufacturing process, which requires an extremely precise wedging between the image areas and the network of rectiiignes lenses, in particular for the alignment of the image bands with respect to the longitudinal axis of the lentilies. This setting is all the more difficult to obtain that the resolution of the lens array, that is to say the number of lenses per unit length, is low. Indeed, there is no other way than manual to achieve this alignment, which is a real obstacle to the marketing of such devices,
La résolution simultanée des problèmes mentionnés précédemment permettrait donc d'améliorer l'intégration des capteurs d'énergie lumineuse indépendamment de leurs plages angulaires d'observation et de faciliter le procédé de fabrication d'un tel dispositif, tout en maintenant sensiblement constante la proportion de la surface active apparente des capteurs par rapport â leur surface totale de ces capteurs solaires quelle que soit l'orientation du dispositif par rapport à la source de lumière, ce qui revient aussi à dire que pour une orientation donnée du dispositif, la production électrique du capteur sera également constante. Simultaneous resolution of the problems mentioned above would therefore make it possible to improve the integration of the light energy sensors independently of their angular viewing ranges and to facilitate the manufacturing process of such a device, while keeping the proportion of the apparent active surface of the sensors with respect to their total surface area of these solar collectors regardless of the orientation of the device with respect to the light source, which also means that for a given orientation of the device, the electrical output of the sensor will also be constant.
La présente invention vise à résoudre ces problèmes et à remédier aux inconvénients précités de l'état de la technique, en proposant une nouvelle structure de dispositif optique. Plutôt que de chercher à masquer entièrement le capteur, cette nouvelle approche d'intégration consiste à rendre visible une partie de sa surface, a la recouvrir partiellement d'une image et à donner une illusion de tridimensionnalitê et/ou de relief audit système, de sorte que le capteur devienne attractif ou ludique pour l'observateur. Objets de l'invention The present invention aims to solve these problems and to overcome the aforementioned drawbacks of the state of the art, by proposing a new optical device structure. Rather than seeking to completely mask the sensor, this new integration approach consists in making part of its surface visible, partially covering it with an image and giving an illusion of three-dimensionality and / or relief to said system. so that the sensor becomes attractive or fun for the observer. Objects of the invention
L'objet de l'invention est constitué par un dispositif tel que défini dans les revendications. Le dispositif selon l'invention comporte au moins :  The object of the invention is constituted by a device as defined in the claims. The device according to the invention comprises at least:
(a) un capteur de l'énergie lumineuse provenant d'une source de lumière extérieure ; (a) a light energy sensor from an external light source;
(b) une plaque transparente structurée optiquement disposée entre ladite source de lumière extérieure et ledit capteur, comprenant une première face appelée « face avant » qui est orientée vers ladite source de lumière extérieure et une deuxième face appelée « face arrière » qui est orientée vers ledit capteur, ladite plaque transparente étant structurée optiquement sur i'une de ses deux faces au moins par une pluralité d'éléments optiques rectilignes et parallèles les uns aux autres ; (b) an optically structured transparent plate disposed between said external light source and said sensor, comprising a first face referred to as a "front face" that is oriented toward said external light source and a second face as "a face" back "which is oriented towards said sensor, said transparent plate being optically structured on one of its two faces at least by a plurality of optical elements rectilinear and parallel to each other;
(c) une pluralité de bandes image séparées par des bandes de transparence ;  (c) a plurality of image bands separated by transparency bands;
Ledit dispositif est caractérisé en ce que l'axe longitudinal des bandes image est incliné d'un angle non nul par rapport à l'axe longitudinal des éléments optiques de la plaque transparente, de manière que lesdites images vues au travers de la plaque transparente apparaissent avec un aspect de relief, tandis que la production énergétique du capteur reste sensiblement constante quel que soit l'angle d'incidence de ladite lumière extérieure sur le dispositif. Said device is characterized in that the longitudinal axis of the image bands is inclined at a non-zero angle with respect to the longitudinal axis of the optical elements of the transparent plate, so that said images seen through the transparent plate appear with an aspect of relief, while the energy output of the sensor remains substantially constant regardless of the angle of incidence of said external light on the device.
Suivant différents modes de réalisation du dispositif, la surface totale des bandes image est sensiblement identique à la surface totale des bandes de transparence. Dans des modes de réalisation particuliers, l'angle d'inclinaison entre l'axe longitudinal des lentilles et l'axe longitudinal des bandes image est compris entre 35' et 70", de sorte que l'apparence desdites images reste sensiblement constante en fonction de l'angle d'observation du dispositif, Lesdites bandes image sont fixes ou animées et sont constituées d'une multitude de pixels opaques, réfléchissants ou semi-transparents, imprimés ou générés électroniquement par des composants rétro-éciairés, électroluminescents, ou réfléchissants. Ainsi, en jouant sur la taille des zones de transparence entre les bandes image ou sur la transparence des pixels qui les constituent, il est possible de moduler la quantité d'énergie lumineuse susceptible d'atteindre la surface du capteur. According to different embodiments of the device, the total area of the image bands is substantially identical to the total surface of the transparency bands. In particular embodiments, the angle of inclination between the longitudinal axis of the lenses and the longitudinal axis of the image bands is between 35 'and 70 ", so that the appearance of said images remains substantially constant according to the viewing angle of the device, Said strips are fixed or animated picture and consist of a multitude of pixels opaque, reflective or semi-transparent, printed or electronically generated by retro-éciairés components, electroluminescent or reflective. Thus, by varying the size of the transparency zones between the image bands or the transparency of the pixels constituting them, it is possible to modulate the amount of light energy that can reach the surface of the sensor.
Lesdites bandes image peuvent être positionnées entre le capteur et ia face arrière de la plaque transparente, ou en aval dudit capteur, le terme aval faisant référence à la direction de propagation de la lumière depuis la source de lumière extérieure vers le dispositif. Said image bands may be positioned between the sensor and the rear face of the transparent plate, or downstream of said sensor, the downstream term referring to the direction of propagation of light from the external light source to the device.
Lesdites bandes image peuvent également être en contact avec ledit capteur et/ou ladite face arrière de la plaque transparente, ou séparées de ces surfaces par un matériau d'indice de réfraction différent de celui de la plaque transparente. De cette manière, il est possibie de positionner les bandes image soit directement sur la face arrière de la pfaque transparente. soit sur un support transparent qui est ensuite disposé contre ladite face arrière de la plaque transparente. Dans ce dernier cas, ledit support transparent peut être séparé de ladite face arrière de ia plaque transparente et/ou dudit capteur soit par de l'air, soit par une colle optique d'indice de réfraction proche de celui de la plaque transparente. La première solution donne la possibilité de remplacer l'image du dispositif sans changer la plaque transparente ou le capteur alors que la deuxième solution évite les réflexions parasites et les pertes d'énergie lumineuse aux interfaces. Said image bands may also be in contact with said sensor and / or said rear face of the transparent plate, or separated from these surfaces by a material of refractive index different from that of the transparent plate. In this way, it is possible to position the image strips either directly on the back of the transparent cover. either on a transparent support which is then disposed against said rear face of the transparent plate. In the latter case, said transparent support can be separated from said rear face of the transparent plate and / or said sensor either by air or by an adhesive optical refractive index close to that of the transparent plate. The first solution gives the possibility of replacing the image of the device without changing the transparent plate or the sensor while the second solution avoids parasitic reflections and losses of light energy at the interfaces.
L'invention trouve ses principales applications dans le cas où le capteur d'énergie lumineuse est un capteur solaire de type thermique, photovoitaïque, chimique ou mixte, pian ou courbe, rigide ou flexible. Selon une variante supplémentaire de réalisation, iedit capteur d'énergie lumineuse est composé de zones actives pleines ou semi-transparentes, jointives ou séparées les unes des autres par des zones de transparence. The invention finds its main applications in the case where the light energy sensor is a solar collector of thermal type, photovoltaic, chemical or mixed, yaw or curved, rigid or flexible. According to a further variant embodiment, this luminous energy sensor is composed of solid or semitransparent active zones contiguous or separated from each other by zones of transparency.
Selon des modes de réalisation retenus, les éiéments optiques de la plaque transparente soni : According to embodiments retained, the optical elements of the transparent plate are:
(a) des lentilles convexes ou concaves, symétriques ou asymétriques ;  (a) convex or concave, symmetrical or asymmetrical lenses;
(b) des prismes.  (b) prisms.
Il en résulte que ia structuration optique de la plaque transparente peut être réalisée sur une seule de ses faces ou bien sur les deux, avec des formes géométriques qui peuvent être identiques ou différentes  As a result, the optical structuring of the transparent plate can be carried out on only one of its faces or both, with geometric shapes that can be identical or different.
Suivant différents modes de réalisation du dispositif, la pfaque transparente, les bandes image et le capteur sont contenus dans des plans avantageusement parallèles entre eux, mais peuvent subir une déformation telle que ces surfaces plan s deviennent des surfaces courbes, notamment dans le cas d'un dispositif souple. According to different embodiments of the device, the transparent plate, the image bands and the sensor are contained in planes which are advantageously parallel to each other, but can undergo a deformation such that these plane surfaces become curved surfaces, in particular in the case of a flexible device.
Dans un mode de réalisation particulier, les éléments optiques de ia plaque transparente et les bandes image sont organisés en réseaux de structures élémentaires. Le terme élémentaire qualifie le plus petit motif du réseau qui, une fois répété, constitue ledit réseau et l'espacement régulier entre deux points identiques de deux motifs élémentaires adjacents définit le pas du réseau. De cette façon, il est possible de transformer la surface uniforme du capteur d'énergie lumineuse en une surface constituée de motifs réguliers, La couleur et la forme de ces motifs dépendent à la fois de la couleur du capteur, de la forme du réseau des éiéments optiques de la plaque transparente et enfin de ta couleur et de ia forme du réseau de bandes image, In a particular embodiment, the optical elements of the transparent plate and the image bands are organized into networks of elementary structures. The elementary term qualifies the smallest pattern of the network which, once repeated, constitutes said network and the regular spacing between two identical points of two adjacent elementary patterns defines the pitch of the network. In this way, it is possible to transform the uniform surface of the light energy sensor into a surface consisting of regular patterns. The color and shape of these patterns depend on both the color of the sensor, the shape of the network of optical elements of the transparent plate and finally of the color and the shape of the image band network,
Selon des modes de réalisation retenus, la plaque transparente et les bandes image sont fixes ou mobiles par rapport au capteur, en subissant par exemple des mouvements de translation et/ou de rotation. According to embodiments retained, the transparent plate and the image bands are fixed or mobile with respect to the sensor, for example undergoing translation and / or rotation.
La plaque transparente est constituée d'un matériau transparent solide, liquide ou gazeux, comme ie verre minéral, le verre organique, ou encore un polymère de type PMMA, PET ou polycarhonate, et peut être plane ou courbe, rigide ou flexible, colorée dans sa masse ou incolore. The transparent plate consists of a solid, liquid or gaseous transparent material, such as mineral glass, organic glass, or a polymer of the PMMA, PET or polycaronate type, and can be flat or curved, rigid or flexible, colored in its mass or colorless.
Dans un mode de réalisation particulier non représenté, l'une des deux faces de ladite plaque transparente au moins est recouverte d'une surface fonctionnelle présentant une fonction supplémentaire autre que la simple transmission de la lumière, par exemple un effet antireflets, anti encrassement ou anti-UV. In a particular embodiment not shown, one of the two faces of said at least one transparent plate is covered with a functional surface having an additional function other than the simple transmission of light, for example an antireflection effect, anti-fouling or Sun Creme.
Selon une variante supplémentaire de réalisation du dispositif non représentée, ies bandes image sont éclairées par une ou plusieurs sources d'éclairage dont l'essentiel de la lumière se propage dans l'épaisseur de la plaque transparente qui joue le rôle de guide d'ondes, ou dans une plaque transparente additionnelle placée en amont ou en aval de la plaque transparente, les termes amont et aval faisant référence à la direction de propagation de la lumière depuis la source d'éclairage vers le dispositif. Dans une autre variante avantageuse du dispositif selon l'invention, le capteur d'énergie lumineuse est un capteur phqtovoltaïque pourvu de grilles de collecte d'électrons en surface dudii capteur, et une partie de la surface desdites bandes image est constituée par la face visible des grilles de collecte d'électrons. De cette manière, la réalisation du dispositif est simplifiée puisque les zones image sont directement inclues dans te capteur fors de sa fabrication, ce qui évite une étape supplémentaire d'impression desdites zones image. According to a further alternative embodiment of the device not shown, the image bands are illuminated by one or more light sources, most of the light propagates in the thickness of the transparent plate which acts as a waveguide , or in an additional transparent plate placed upstream or downstream of the transparent plate, the upstream and downstream terms referring to the direction of propagation of the light from the light source to the device. In another advantageous variant of the device according to the invention, the light energy sensor is a photovoltaic sensor provided with electron collection gates on the surface of said sensor, and a portion of the surface of said image bands is constituted by the visible face. electron harvesting grids. In this way, the embodiment of the device is simplified since the image areas are directly included in the sensor during its manufacture, which avoids an additional step of printing said image areas.
Selon une autre variante dégradée de l'invention, te capteur d'énergie lumineuse est remplacé par un support non fonctionnel quelconque, de même aspect sombre qu'un capteur d'énergie lumineuse. Dans ce cas on arrive bien entendu à obtenir le même effet d'intégration visuelle dudit support que dans le cas d'un capteur d'énergie lumineuse, mais sans que le dispositif ne produise d'énergie. According to another degraded variant of the invention, thee light energy sensor is replaced by any non-functional support, as a dark appearance of light energy sensor. In this case, of course, we obtain the same effect of visual integration of said support as in the case of a light energy sensor, but without the device producing energy.
Figures figures
L'invention sera mieux comprise à l'aide de sa description détaillée, en relation avec les figures, dans lesquelles :  The invention will be better understood with the aid of its detailed description, in relation to the figures, in which:
- les figures 1a et 1 montrent schématiquement ta structure d'un dispositif selon l'état de la technique ; - les figures 2a, 2b et 2c montrent schêmatiquement la structure d'un dispositif selon l'invention ; - Figures 1a and 1 show schematically the structure of a device according to the state of the art; FIGS. 2a, 2b and 2c show schematically the structure of a device according to the invention;
- les figures 3a, 3b et 3c montrent en vue de dessus l'apparence du dispositif selon l'invention en Fonction de divers angles d'observation et d'orientations respectives de la plaque transparente et des bandes image ;  FIGS. 3a, 3b and 3c show in a view from above the appearance of the device according to the invention in function of various angles of observation and respective orientations of the transparent plate and the image bands;
- la figure 4 montre schêmatiquement la structure d'une autre variante de réalisation du dispositif selon l'invention ;  - Figure 4 schematically shows the structure of another embodiment of the device according to the invention;
- les figures 5a et 5b comparent la production électrique en fonction de l'angle d'incidence de la lumière pour un dispositif connu de l'état de i'art ot pour le dispositif objet de l'invention.  FIGS. 5a and 5b compare the electrical output as a function of the angle of incidence of the light for a device known from the state of the art and for the device which is the subject of the invention.
Les figures ne sont pas à l'échelle, les épaisseurs relatives des composants du dispositif étant volontairement exagérées pour mieux faire apparaître sa structure. Liste des repères utilisés sur les figures The figures are not to scale, the relative thicknesses of the components of the device being deliberately exaggerated to better reveal its structure. List of landmarks used in the figures
Description détaillée detailed description
On se réfère à la figure 1 , qui correspond à une vue tridimensionnelle (figure 1a) et à une vue en coupe transversale (figure 1b) d'un dispositif connu selon la demande de brevet WO/2007/08572 . Ce dispositif 14 comporte une plaque transparente 1 structurée optiquement et disposée entre un observateur 8 et un capteur 5 d'énergie lumineuse. La face avant 2 de ladite plaque transparente 1 est composée d'un réseau de lentilles rectilignes cylindriques, de types plan-convexes. La face arriére 6, plane, contient un réseau de bandes image 3 et de bandes de transparence 4. Comme représenté sur la figure 1 a, l'axe longitudinal desdites bandos (3,4) est parallèle à l'axe longitudinal des lentilles, et le pas du réseau de lentilles est le même que le pas du réseau de bandes image. i-a figure 1b est une vue en coupe transversale du dispositif, à savoir une coupe selon un plan qui contient la droite matérialisée par la double flèche de la figure 1a et qui est orthogonal à Taxe longitudinal des lentilles de la plaque transparente 1 . Un premier observateur 8' positionné face au dispositif avec un angle d'observation par rapport à la normale aux lentilles voit un faisceau lumineux T issu d'une bande image 3. Dans cette position, il voit donc en apparence l'intégralité de l'image 10 reconstituée par l'ensemble des bandes image 3. Par symétrie vis-à-vis du premier observateur 8', un deuxième observateur 8" dont l'angle d'observation du dispositif est - voit en revanche le faisceau lumineux 7" qui a été réfléchi à la surface du capteur S et qui traverse une zone d© transparence 4 de l'image. Sous cet angle, le second observateur 8" ne voit donc que la surface apparente 11 du capteur 5, généralement de couleur sombre. Referring to Figure 1, which corresponds to a three-dimensional view (Figure 1a) and a cross-sectional view (Figure 1b) of a known device according to the patent application WO / 2007/08572. This device 14 comprises a transparent plate 1 optically structured and disposed between an observer 8 and a light energy sensor 5. The front face 2 of said transparent plate 1 is composed of a network of cylindrical rectilinear lenses of plano-convex types. The rear face 6, plane, contains a network of image bands 3 and bands of transparency 4. As shown in Figure 1a, the longitudinal axis of said bandos (3,4) is parallel to the longitudinal axis of the lenses, and the pitch of the lens array is the same as the pitch of the image band network. FIG. 1b is a cross-sectional view of the device, namely a section along a plane which contains the straight line represented by the double arrow of FIG. 1a and which is orthogonal to the longitudinal axis of the lenses of the transparent plate 1. A first observer 8 'positioned facing the device with an angle of observation with respect to the normal to the lenses sees a light beam T coming from an image band 3. In this position, it therefore sees in appearance the entirety of the image 10 reconstituted by the set of image bands 3. By symmetry vis-à-vis the first observer 8 ', a second observer 8 "whose viewing angle of the device is - however, sees the light beam 7" which has been reflected on the surface of the sensor S and which passes through a region of transparency 4 of the image. In this respect, the second observer 8 "therefore only sees the apparent surface 11 of the sensor 5, generally of a dark color.
Le dispositif connu selon la figure 1 a donc pour inconvénient une discontinuité des plages de vision des zones image 3 qui recouvrent le capteur 5, et par symétrie des plages d'éciairement et donc de production d'énergie dudit capteur 5, représentées sur la figure 5b et commentées par la suite.  The known device according to FIG. 1 therefore has the disadvantage of a discontinuity of the viewing ranges of the image zones 3 which cover the sensor 5, and by symmetry of the control ranges and therefore of the energy production of said sensor 5, represented in FIG. 5b and commented thereafter.
La figure 2 illustre une vue tridimensionnelle (figure 2a et deux vues en coupe transversale (figures 2b et 2Ê) d'un dispositif selon l'invention, Le dispositif est constitué d'un capteur 5 de l'énergie lumineuse provenant d'une source de lumière extérieure, d'une pluralité de bandes image 3 et de bandes de transparence 4, et d'une plaque transparente 1 structurée optiquement. La face avant 2 de ladite plaque transparente 1 est composée d'un réseau de lentilles rectilignes cylindriques, de types plan-convexes, qui ont avantageusement leur plan focal situé dans Se plan de la face arrière 6 de la plaque transparente 1. La face arrière 6, plane, contient un réseau de bandes image 3 de largeur ! séparées par des bandes de transparence 4. Selon l'invention, l'axe longitudinal des bandes images 3 est incliné d'un angle a non nui par rapport à l'axe longitudinal des lentilles, comme représenté sur la figure 2a. Les réseaux de lentilles et de bandes images 3 sont définis par leurs pas, respectivement p et d, qui matérialisent la distance entre deux lentilles ou entre deux bandes images 3 adjacentes. FIG. 2 illustrates a three-dimensional view (FIG. 2a and two cross-sectional views (FIGS. 2b and 2c) of a device according to the invention. The device consists of a sensor 5 of the light energy coming from a source external light, a plurality of image bands 3 and transparency strips 4, and an optically structured transparent plate 1. The front face 2 of said transparent plate 1 is composed of a network of cylindrical rectilinear lenses, planar-convex types, which advantageously have their focal plane located in the plane of the rear face 6 of the transparent plate 1. The rear face 6, plane, contains a network of image bands 3 of width! separated by transparency bands 4 According to the invention, the longitudinal axis of the image bands 3 is inclined at an angle α not impaired with respect to the longitudinal axis of the lenses, as shown in Figure 2a. The networks of lenses and image bands 3 are defined p their steps, respectively p and d, which materialize the distance between two lenses or between two adjacent image bands 3.
La figure 2b est une vue en coupe transversale du dispositif selon un pian qui contient la droite matérialisée par la double flèche de la figure 3a et qui est orthogonal à l'axe longitudinal des lentilles de la plaque transparente 1. Selon un même angle d'observation Θ2 par rapport à la normale aux lentilies, un observateur 8 voit à la fois des faisceaux lumineux 7' et 7" réfléchis respectivement par le capteur 5 et par des bandes image 3. Le dispositif selon l'invention permet donc à un observateur 8, quel que soit son angle d'observation, de voir simultanément fe capteur 5 et les zones images 3, ce qui élimine les discontinuités S d'apparence du dispositif connu dans l'état de la technique correspondant à la figure 1. De plus, quelle que soit sa position, l'observateur 8 voit de son ceil droit 13' des images différentes de celles perçues par son œil gauche 13", comme illustré à la figure 2c, ce qui permet au cerveau de l'observateur 8 de recomposer une image tridimensionnelle. Par exempte, l'œil droit 13* perçoit â la fois des zones apparentes 1 du capteur 5 et des zones image 10', alors que l'œil gauche ne voit que des zones image 10". C'est ce phénomène qui donne à l'image recouvrant le capteur 5 un aspect de refief. FIG. 2b is a cross-sectional view of the device according to a plane which contains the straight line represented by the double arrow of FIG. 3a and which is orthogonal to the longitudinal axis of the lenses of the transparent plate 1. According to the same angle of observation Θ2 compared to normal to the lentilies, an observer 8 sees both light beams 7 'and 7 "respectively reflected by the sensor 5 and by image bands 3. The device according to the invention therefore allows an observer 8 , whatever its angle of observation, to simultaneously see fe sensor 5 and image zones 3, which eliminates discontinuities S appearance of the device known in the state of the art corresponding to Figure 1. In addition, regardless of its position, the viewer 8 sees his right eye 13 'images different from those seen by his left eye 13 ", as illustrated in FIG. 2c, which allows the observer's brain 8 to recompose a three-dimensional image For example, the right eye 13 * perceives both visible zones 1 of the sensor 5 and image zones 10 ', while the left eye sees only image areas 10 ". It is this phenomenon that gives the image covering the sensor 5 a look-up aspect.
La figure 3 illustre en vue en plan trois modes de réalisation particuliers du dispositif selon l'invention 16 schématisé sur la figure 2. pour lesquels te pas d entre deux bandes images 3 adjacentes est égal au pas p entre deux lentilles rectilignes adjacentes, et la largeur 1 des bandes images 3 est égale à la moitié du pas p. Les trois illustrations correspondent à des angles d'observation différents. FIG. 3 illustrates in plan view three particular embodiments of the device according to the invention 16 shown diagrammatically in FIG. 2, for which the distance between two adjacent image bands 3 is equal to the pitch p between two adjacent rectilinear lenses, and FIG. width 1 of the image bands 3 is equal to half of the pitch p. The three illustrations correspond to different viewing angles.
Comme cela est montré sur les figures 3a. 3b et 3c, l'apparence du dispositif vu de dessus change en fonction de l'angle d'observation Θ et de l'orientation respective de la plaque transparente 1 et des band s image 3, cette orientation étant définie par l'angle d'inclinaison a. On appelle zone image apparente 10 l'impression visuelle de l'observateur qui voit les bandes image 3 à travers la plaque transparente 1 structurée optiquement. Les zones complémentaires vues par l'observateur grâce aux zones de transparence 4 sont appelées zones apparentes 1 du capteur.  As shown in Figures 3a. 3b and 3c, the appearance of the device seen from above changes as a function of the viewing angle Θ and the respective orientation of the transparent plate 1 and the image band 3, this orientation being defined by the angle d inclination a. An apparent image area 10 is the visual impression of the observer who sees the image bands 3 through the optically structured transparent plate 1. The complementary zones seen by the observer thanks to the zones of transparency 4 are called apparent zones 1 of the sensor.
Poui un angle d'observation Θ de 0° et un angle d'inclinaison a de 61Γ (figure 3a). on obtient une illusion d'entrelacement ries zones images apparentes 10a et des zones apparentes du capteur 11a sous ia forme d'un réseau apparent 12a à maiilage cubique. Les paramètres qui décrivent la forme dudit réseau apparent 12a sont directement corrélés aux paramètres p, d, 1 et a précédemment définis. Poui Θ a viewing angle of 0 ° and an angle of inclination of 61Γ (Figure 3a). an illusion of interlacing of the apparent image areas 10a and apparent areas of the sensor 11a is obtained in the form of an apparent cube-like network 12a. The parameters which describe the shape of said apparent network 12a are directly correlated with the parameters p, d, 1 and a previously defined.
En gardant le même angle d'observation Θ de 0° et en modifiant l'angle d'inclinaison a pour qu'il soit de 10°, la forme du réseau apparent change. Le réseau résultant 12b est illustré sur la figure 3b. On obtient dans cette configuration une illusion de bandes images apparentes 10b et de» bandes apparentes de capteur 1 b. Ces bandes images apparentes 10b sont ia résultante de plusieurs bandes image 3 associées, de telle sorte que fa largeur desdites bandes image apparentes 10b est un multiple de la largeur 1 des bandes image 3. A titre d'exempte non limitatif, un dispositif selon l'invention a été réalisé avec p = 1 ,6 mm, d = ,6 mm et 1 = 0,8 mm. Dans le mode de réalisation de ta figure 3b. la largeur des bandes apparentes 10b est de 5 mm et le pas du réseau de bandes est de 9 mm.  Keeping the same observation angle Θ of 0 ° and changing the angle of inclination a so that it is 10 °, the shape of the apparent network changes. The resulting network 12b is illustrated in Figure 3b. In this configuration, an illusion of apparent image bands 10b and of apparent sensor bands 1b is obtained. These apparent image bands 10b are the resultant of several associated image bands 3, so that the width of said apparent image bands 10b is a multiple of the width 1 of the image bands 3. By way of non-limiting example, a device according to FIG. The invention has been realized with p = 1.6 mm, d = .6 mm and 1 = 0.8 mm. In the embodiment of Figure 3b. the width of the apparent bands 10b is 5 mm and the pitch of the network of strips is 9 mm.
En gardant le même angle d'inclinaison a de 10" mais en modifiant cette fois l'angle d'observation 0 pour qu'il soit de 40° ffîouie 3c), la forme du réseau apparent 12c reste identique au réseau 12b, mais se décale dans l'espace. En effet, l'ensemble des positions des bandes images apparentes 10b observées sous un angle Θ de 30° (figure 3b) correspondent à celles des bandes apparentes de capteur 11c sous un angle Θ do 40° (figure 3c), Ce décalage apparent est périodique sur des plages d'observation de 40", Ces trois modes de réalisation montrent qu'en jouant sur la nature des réseaux de zones image et de zones apparentes du capteur, et sur l'angle d'observation du dispositif par un observateur, celui-ci peut avoir l'illusion d'une variabilité des zones image apparentes 10 et des zones apparentes du capteur 11 alors que, dans le même temps, les proportions de surface desdites zones (10,11) restent constantes. Cette variabilité concerne la forme, la luminosité et les positions absolues desdites zones image apparentes 10 et desdites zones apparentes du capteur 11 dans le référentiel de l'observateur en mouvement, Avantageusement, on se placera dans des configurations telles qu'il y ait peu de variabilité de l'image observée dans le référentiel de l'observateur en mouvement, Pour des surfaces totales de bandes images 3 identiques à la surface totale des bandes de transparence 4, une faible variabilité est observée lorsque l'angle d'inclinaison a est compris entre 35° et 70°. Il est à noter que si l'on remplaçait le capteur solaire par un dispositif de même apparence mais sans fonction de production d'énergie, on conserverait la même variabilité d'apparence des zones image apparentes 10 (et donc la même intégration visuelle), mais sans production d'énergie par le dispositif, Keeping the angle of inclination at 10 "but this time changing the viewing angle θ to 40 ° (3c), the shape of the apparent network 12c remains identical to the network 12b, but shifts in space. Indeed, the set of positions of the apparent image bands 10b observed at an angle Θ of 30 ° (FIG. 3b) correspond to those of the apparent sensor bands 11c at an angle Θ do 40 ° (FIG. 3c). This apparent shift is on beaches periodic observation 40 "These three embodiments show that by varying the nature of the image areas of networks and exposed areas of the sensor, and on the angle of observation of the device by an observer, this may have the illusion of a variability of the apparent image areas 10 and the apparent areas of the sensor 11 while, at the same time, the surface proportions of said zones (10, 11) remain constant. shape, brightness and absolute positions of said apparent image areas 10 and said apparent areas of the sensor 11 in the reference frame of the moving observer, Advantageously, one will place oneself in such configurations that there is little var the image observed in the reference frame of the moving observer, For total surfaces of image bands 3 identical to the total surface of the transparency bands 4, a small variability is observed when the angle of inclination a is understood between 35 ° and 70 °. It should be noted that if the solar collector was replaced by a device of the same appearance but without a function of energy production, the same variability in the appearance of the apparent image areas 10 (and therefore the same visual integration) would be retained, but without energy production by the device,
Le dispositif selon l'invention permet donc d'améliorer l'intégration visuelle des capteurs 5 d'énergie lumineuse sur des supports, indépendamment de leurs plages angulaires d'observation, et ce quelle que soit l'orientation du dispositif par rapport à la source de lumière. Par ailleurs, le procédé de réalisation d'un tel dispositif ne nécessite pas de calage très précis entre les zones image 3 et la plaque transparente 1 , l'apparence du dispositif ne changeant pas significativement lorsque l'angle d'inclinaison a varie de quelques degrés. The device according to the invention therefore makes it possible to improve the visual integration of light energy sensors 5 on supports, regardless of their angular viewing ranges, and whatever the orientation of the device with respect to the source. from light. Moreover, the method of producing such a device does not require very precise registration between the image zones 3 and the transparent plate 1, the appearance of the device does not change significantly when the angle of inclination varies from a few degrees.
Seion une variante supplémentaire de réalisation illustrée à ia figure 4. le dispositif est constitué d'un réseau de bandes image 3 imprimées sur un support transparent 9 posé entre une plaqua transparente 1 structurée optiquement et un capteur 5 de l'énergie lumineuse. A la différence du mode de réalisation schématisé sur la figure 2a, la face avant 2 de ladite plaque transparente 1 est plane alors que la face arrière β est composée d'un réseau de lentilles rectîlignes cylindriques. L'axe longitudinal des bandes image 3 est incliné d'un angle a non nui par rapport à l'axe longitudinal des lentilles. Seion a further variant embodiment shown in Figure 4. the device consists of a network of image bands 3 printed on a transparent support 9 placed between a transparent plate 1 optically structured and a sensor 5 of light energy. Unlike the embodiment shown diagrammatically in FIG. 2a, the front face 2 of said transparent plate 1 is flat whereas the rear face β is composed of a network of cylindrical rectilinear lenses. The longitudinal axis of the image bands 3 is inclined at an angle α not affected relative to the longitudinal axis of the lenses.
Un tel dispositif a plusieurs avantages. La planéité de la face avant 2 évite l'encrassement des lentilles et facilite le nettoyage de la surface externe du dispositif sans qu'il soit nécessaire de rajouter une plaque supplémentaire qui augmenterait l'épaisseur et le coût du dispositif. Dans le même temps, cette surface procure au toucher un aspect lisse pour l'utilisateur, ce qui est avantageux dans de nombreuses applications, par exemple une coque de téléphone portable. Cet aspect peut être modulé par une micro structuration de la face avant 2, de façon à étendre fa gamme de touchers. Enfin, l'impression des bandes image 3 sur un support 9 qui n'est pas collé aux éléments adjacents du dispositif permet de changer l'apparence des bandes images 3, par exemple leurs formes ou leurs couleurs, à moindres coûts en remplaçant uniquement le support 9 et non la plaque 1, Such a device has several advantages. The flatness of the front face 2 avoids clogging of the lenses and facilitates the cleaning of the external surface of the device without the need to add an additional plate that would increase the thickness and cost of the device. device. At the same time, this surface provides the user with a smooth appearance, which is advantageous in many applications, for example a mobile phone shell. This aspect can be modulated by a micro structuring of the front face 2, so as to extend the range of touches. Finally, printing of the strips image 3 on a support 9 which is not glued to the adjacent elements of the device allows to change the appearance of image bands 3, for example their shapes or colors, at lower cost only by replacing the support 9 and not the plate 1,
La figure 5a montre schématiquement les deux dispositifs 14 et 15 définis respectivement aux figures 1a et 2a, dotés de capteurs photovoltaïques 5 qui sont éclairés par une source lumineuse 6 dont on impose la trajectoire dans le plan (OXZ). FIG. 5a schematically shows the two devices 14 and 15 respectively defined in FIGS. 1a and 2a, equipped with photovoltaic sensors 5 which are illuminated by a light source 6 whose trajectory is imposed in the plane (OXZ).
La figure 5b présente sur un même graphe les deux courbes de production électrique des capteurs photovoltaïques 6 en fonction de l'angle d'incidence β de la lumière, pour le dispositif connu de l'état de l'art 14 (ligne continue) et pour le dispositif objet de l'invention 15 (ligne en points-tillés). On s'intéresse à ta variation de la production électrique en fonction de l'angle d'incidence β, c'est pourquoi les valeurs de production sont normées. On observe alors que la production électrique varie jusqu'à près de 80% par rapport à la valeur moyenne crête à crête pour le dispositif 14, les productions minimale et maximale alternant tous les 30' environ. La production minimale correspond à i'éctairement par la source lumineuse 16 de l'ensemble des bandes image 3. configuration dans laquelle le capteur photovoltaïque 5 ne reçoit qu'une faible quantité de lumière et produit donc peu. La production maximale quant a elle correspond à l'éclairement d'une multitude de zones du capteur photovoltaïque 5 à travers les bandes de transparence 4, ledit capteur 5 recevant par conséquent une forte intensité lumineuse. En comparaison, le dispositif 15 présente une faible variation de la production énergétique, qui n'excède pas 12% par rapport à la valeur moyenne entre la production maximale et la production minimale. Dans le dispositif objet de l'invention 16, la production électrique est donc sensiblement constante en fonction de l'angle d'incidence P de la lumière extérieure 16. Avantages de l'invention  FIG. 5b shows on the same graph the two electrical production curves of the photovoltaic sensors 6 as a function of the angle of incidence β of the light, for the known device of the state of the art 14 (continuous line) and for the device object of the invention (point-tilled line). We are interested in the variation of the electrical production as a function of the angle of incidence β, which is why the production values are standardized. It is then observed that the electrical output varies up to almost 80% relative to the average peak-to-peak value for the device 14, the minimum and maximum productions alternating every 30 'approximately. The minimum output corresponds, in effect, to the light source 16 of all the image bands 3, in which configuration the photovoltaic sensor 5 receives only a small amount of light and therefore produces little. The maximum output for it corresponds to the illumination of a multitude of areas of the photovoltaic sensor 5 through the transparency strips 4, said sensor 5 consequently receiving a high light intensity. In comparison, the device 15 has a small variation in energy production, which does not exceed 12% compared to the average value between the maximum production and the minimum production. In the device according to the invention 16, the electrical output is therefore substantially constant as a function of the angle of incidence P of the external light 16. Advantages of the invention
Il résulte de ce qui précède que l'invention atteint les buts fixés. Elle décrit un dispositif ayant des caractéristiques optiques pour donner l'illusion de relief à une image placée à la surface d'un capteur d'énergie lumineuse, sans présenter les inconvénients des dispositifs connus à ce jour.  It follows from the foregoing that the invention achieves the goals set. It describes a device having optical characteristics to give the illusion of relief to an image placed on the surface of a light energy sensor, without the disadvantages of devices known to date.
Le dispositif objet de l'invention va permettre d'améliorer l'intégration visuelle, notamment, des capteurs d'énergie lumineuse, ou d'autres éléments de même aspect, indépendamment The device which is the subject of the invention will make it possible to improve the visual integration, in particular of light energy sensors, or other elements of the same aspect, independently
( i 1 des plages angulaires d'observation du dispositif, et de faciliter le procédé de fabrication d'un tel dispositif. ( i 1 of the angular viewing ranges of the device, and to facilitate the method of manufacturing such a device.
Dans le cas de l'utilisation de capteurs d'énergie lumineuse, cet avantage esthétique est obtenu tout en maintenant sensiblement constante ia production énergétique dudit capteur quel que soit l'angle d'incidence de ladite lumière extérieure sur le dispositif.  In the case of the use of light energy sensors, this aesthetic advantage is obtained while maintaining substantially constant ia energy production of said sensor regardless of the angle of incidence of said external light on the device.
L'invention est particulièrement adaptée à l'intégration visuelle des capteurs solaires au dos des écrans de dispositifs d'affichage comme les oïdinateurs portables et ies panneaux publicitaires, sur les coques de téléphones portables, les montres, les jouets, les claviers d'ordinateurs, les stores, les brise-soleils, les pare-soleils, les parasols, les ombrières, les toitures, les murs, les tuiles, les véhicules de transport, y compris les bateaux et les avions, (es vêtements, les sacs a dos et d'une manière générale sur tout support imagé, y compris les images électroniques, et sur toutes surfaces planes ou courbes.  The invention is particularly adapted to the visual integration of solar panels on the back of displays of display devices such as portable computers and billboards, on the shells of mobile phones, watches, toys, computer keyboards. , blinds, sunshades, sunshades, sunshades, shades, roofs, walls, tiles, transport vehicles, including boats and airplanes, clothing, backpacks and in general on any imaged medium, including electronic images, and on any flat or curved surface.

Claims

R E V E N D I C A T I O N S R E V E N D I C A T IO N S
5 1. Dispositif comportant au moins 5 1. Device with at least
(a) un capteur (5) de l'énergie lumineuse provenant d'une source de lumière extérieure ;  (a) a sensor (5) of light energy from an external light source;
(b) une plaque transparente (1) disposée entre ladite source de lumière extérieure et ledit capteur (5), comprenant une première face appelée « face avant » (2) qui est orientée0 vers ladite source de lumière extérieure et une deuxième face appelée « face arrière » (6) qui est orientée vers ledit capteur {5), ladite plaque transparente (1) étant structurée optiquement sur l'une de ses deux faces (2,6) au moins par un© piurafité d'éléments optiques rectiiignes et parallèles les uns aux autres ;  (b) a transparent plate (1) disposed between said external light source and said sensor (5), comprising a first face called "front face" (2) which is oriented toward said external light source and a second face called " rear face "(6) which is directed towards said sensor (5), said transparent plate (1) being optically structured on one of its two faces (2,6) at least by a piurafité of rectiiignes optical elements and parallel to each other;
(c) une pluralité de bandes image (3) séparées par des bandes de transparence (4) ;5 ledit dispositif étant caractérisé en ce que t'axe longitudinal des bandes image (3) est incliné d'un angle ( a ) non nul par rapport à Taxe longitudinal des éléments optiques de la pîaque transparente (1). de manière que lesdifes images (3) vues au travers de la plaque transparente (1) apparaissent avec un effet de relief, tandis que la production énergétique du capteur (5) reste sensiblement constante quei que soit l'angle d'incidence de ladite lumièreU extérieure sur ie dispositif.  (c) a plurality of image bands (3) separated by transparency bands (4), said device being characterized in that the longitudinal axis of the image bands (3) is inclined by a non-zero angle (a) relative to the longitudinal tax of the optical elements of the transparent plate (1). in such a way that the two images (3) seen through the transparent plate (1) appear with a relief effect, while the energy output of the sensor (5) remains substantially constant regardless of the angle of incidence of said light. outside on the device.
2. Dispositif selon la revendication t , caractérisé en ce que la surface totale des bandes image (3) est sensiblement identique à ia surface totale des bandes de transparence (4).2. Device according to claim t, characterized in that the total surface of the image bands (3) is substantially identical to the total surface of the transparency strips (4).
5 5
3. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'angle d'inclinaison (a) entre l'axe longitudinal des lentilles et l'axe longitudinal des bandes image est compris entre 35° et 70°, de sorte que l'apparence desdites images (3) reste sensiblement constante en fonction de l'angle d'observation (Θ) du dispositif. 3. Device according to any one of the preceding claims, characterized in that the angle of inclination (a) between the longitudinal axis of the lenses and the longitudinal axis of the image bands is between 35 ° and 70 °, so that the appearance of said images (3) remains substantially constant as a function of the viewing angle (Θ) of the device.
0 0
4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdites bandes image (3) sont fixes ou animées, et sont constituées d'une multitude de pixels opaques, réfléchissants ou semi transparents, imprimés ou générés électroniquement par des composants rétro-éclairés, électroluminescents, ou réfléchissants.5  4. Device according to any one of the preceding claims, characterized in that said image bands (3) are fixed or animated, and consist of a multitude of opaque, reflective or semi-transparent pixels, printed or generated electronically by components. backlit, electroluminescent, or reflective.5
5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que iesdites bandes image (3) sont positionnées entre îe capteur (S) et ia face arrière (6) de ta plaque transparente (1), ou en aval dudit capteur (5), le terme aval faisant référence à la direction de propagation de la lumière depuis la source de lumière extérieure vers le dispositif. 5. Device according to any one of the preceding claims, characterized in that said image strips (3) are positioned between the sensor (S) and the rear face (6) of the transparent plate (1), or downstream of said sensor. (5), the term downstream referring to the direction of propagation of the light from the external light source to the device.
6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdites bandes image (3) sont en contact avec ledit capteur {5) et/ou ladite face arrière (6) de la plaque transparente (1), ou séparées de ces surfaces par un matériau d'indice de réfraction différent de celui de ia plaque transparente (1). 6. Device according to any one of the preceding claims, characterized in that said image strips (3) are in contact with said sensor (5) and / or said rear face (6) of the transparent plate (1), or separate of these surfaces by a material of refractive index different from that of the transparent plate (1).
7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le capteur (5) d'énergie lumineuse est un capteur solaire de type thermique, photovoltaïque, chimique ou mixte, plan ou courbe, rigide ou flexible. 7. Device according to any one of the preceding claims, characterized in that the sensor (5) of light energy is a solar collector of thermal type, photovoltaic, chemical or mixed, flat or curved, rigid or flexible.
8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit capteur (5) d'énergie lumineuse est composé de zones actives pleines ou semi- transparentes, jointives ou séparées les unes des autres par des zones de transparence. 8. Device according to any one of the preceding claims, characterized in that said light energy sensor (5) is composed of solid or semitransparent active areas contiguous or separated from each other by zones of transparency.
9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments optiques de la plaque transparente (1 ) sont : 9. Device according to any one of the preceding claims, characterized in that the optical elements of the transparent plate (1) are:
(a) des lentilles convexes ou concaves, symétriques ou asymétriques ;  (a) convex or concave, symmetrical or asymmetrical lenses;
(b) des prismes.  (b) prisms.
10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque transparente (1), les bandes image (3) et le capteur (5) sont contenus dans des plans parallèles entre eux mais pouvant subir une déformation telle que ces surfaces planes deviennent des surfaces courbes, notamment dans le cas d'un dispositif souple. 10. Device according to any one of the preceding claims, characterized in that the transparent plate (1), the image strips (3) and the sensor (5) are contained in planes parallel to each other but may undergo deformation such that these flat surfaces become curved surfaces, especially in the case of a flexible device.
11. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments optiques de ta plaque transparente (1) et les bandes image (3) sont organisés en réseaux de structures élémentaires. 11. Device according to any one of the preceding claims, characterized in that the optical elements of the transparent plate (1) and the image strips (3) are organized in networks of elementary structures.
12. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque transparente (1) et les bandes image (3) sont fixes par rapport au capteur (5). 13. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la plaque transparente (1) et les bandes image (3) sont mobiles par rapport au capteur (5), en subissant par exemple des mouvements de translation et/ou de rotation. 12. Device according to any one of the preceding claims, characterized in that the transparent plate (1) and the image strips (3) are fixed relative to the sensor (5). 13. Device according to any one of claims 1 to 11, characterized in that the transparent plate (1) and the image strips (3) are movable relative to the sensor (5), undergoing for example translational movements and / or rotation.
1 , Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ia piaque transparente (1) est constituée d'un matériau transparent solide, liquide ou gazeux, comme du verre ou un polymère de type PMMA, PET ou polycarbonate, et en ce qu'elle peut être plane ou courbe, rigide ou flexible, colorée dans sa masse ou incolore. 15. Dispositif selon Tune quelconque des revendications précédentes, caractérisé en ce que l'une des deux faces (2,6) de ladite plaque transparente (1) au moins est recouverte d'une surface fonctionnelle, par exemple antirefiet, anti encrassement ou anti-UV. 1, Device according to any one of the preceding claims, characterized in the transparent plate (1) consists of a solid, liquid or gaseous transparent material, such as glass or a polymer of the PMMA, PET or polycarbonate type, and in that it can be flat or curved, rigid or flexible , colored in its mass or colorless. 15. Device according to any one of the preceding claims, characterized in that one of the two faces (2,6) of said transparent plate (1) at least is covered with a functional surface, for example antirefiet, antifouling or anti -UV.
16. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les bandes image (3) sont éclairées par une ou plusieurs sources d'éclairage dont l'essentiel de la lumière se propage dans l'épaisseur de la plaque transparente (1) qui joue le rôle de guide d'ondes, ou dans une plaque transparente additionnelle placée en amont ou en aval de la plaque transparente (1), les termes amont et aval faisant référence à la direction de propagation de la lumière depuis la source d'éclairage vers le dispositif. Device according to any one of the preceding claims, characterized in that the image strips (3) are illuminated by one or more light sources, the bulk of which propagates in the thickness of the transparent plate ( 1) which acts as a waveguide, or in an additional transparent plate placed upstream or downstream of the transparent plate (1), the upstream and downstream terms referring to the direction of propagation of the light from the source lighting to the device.
17. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le capteur (5) d'énergie lumineuse est un capteur photovoltaïque pourvu de grilles de collecte d'électrons en surface dudit capteur (5), et en ce qu'une partie de la surface desdites bandes image est constituée par ia face visible des grilles de collecte d'électrons. 17. Device according to any one of the preceding claims, characterized in that the light energy sensor (5) is a photovoltaic sensor provided with electron collection gates on the surface of said sensor (5), and in that a part of the surface of said image bands is constituted by the visible face of the electron collection gates.
18. Dispositif selon l'une quelconque des revendications 1 à 16, caractérisé en ce que le capteur (5) est remplacé par un support non Fonctionnel, de même aspect sombre qu'un capteur d'énergie lumineuse. 18. Device according to any one of claims 1 to 16, characterized in that the sensor (5) is replaced by a non-functional support, the same dark appearance as a light energy sensor.
EP14802934.1A 2013-10-31 2014-10-29 Optical device giving a raised appearance to an image that partially covers a luminous energy sensor Withdrawn EP3063586A1 (en)

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FR1302539A FR3012625B1 (en) 2013-10-31 2013-10-31 OPTICAL DEVICE FOR VARYING THE SURFACE APPEARANCE OF A PARTIALLY COVERED LIGHT ENERGY SENSOR OF IMAGE AREA
PCT/FR2014/000233 WO2015063380A1 (en) 2013-10-31 2014-10-29 Optical device giving a raised appearance to an image that partially covers a luminous energy sensor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9671757B1 (en) 2015-12-29 2017-06-06 Michael M. Yuen Smartwatch assemblies having analog dials and related methods
US9841735B2 (en) 2015-12-29 2017-12-12 Michael M. Yuen Smartwatch assemblies having analog dials with specific functionalities

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6641790B2 (en) * 2015-08-27 2020-02-05 大日本印刷株式会社 Solar cell composite display and method of installing solar cell composite display
JP6663578B2 (en) * 2015-08-27 2020-03-13 大日本印刷株式会社 Solar cell composite display
EP3273681B1 (en) * 2016-06-08 2020-06-17 Panasonic Intellectual Property Management Co., Ltd. Projection system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6337117B1 (en) * 1998-07-01 2002-01-08 Mitsubishi Chemical Corporation Optical memory device
FR2896596B1 (en) * 2006-01-26 2008-04-18 Joel Gilbert OPTICAL SYSTEM FOR VISUALIZING AN IMAGE ON THE SURFACE OF A SOLAR PANEL
US9202396B2 (en) * 2008-07-02 2015-12-01 Solaire Generation, Inc. Solar power generation assembly and method for providing same
US20100000124A1 (en) * 2008-07-03 2010-01-07 Shuo-Hsiu Johnny Chang Hygienic footwear cushion and the method of manufacturing the same
FR2939913B1 (en) * 2008-12-11 2010-12-24 Saint Gobain SOLAR PANEL FOR VISUALIZING AN IMAGE.
CN101907774B (en) * 2010-07-05 2013-04-10 深圳超多维光电子有限公司 Stereoscopic display device
JP5807761B2 (en) * 2011-06-06 2015-11-10 株式会社ニコン Illumination method, illumination optical apparatus, and exposure apparatus
TWI463179B (en) * 2012-03-23 2014-12-01 Au Optronics Corp Autostereoscopic display apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015063380A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9671757B1 (en) 2015-12-29 2017-06-06 Michael M. Yuen Smartwatch assemblies having analog dials and related methods
US9696688B1 (en) 2015-12-29 2017-07-04 Michael Yuen Smartwatch assemblies having analog dials and related methods
US9841735B2 (en) 2015-12-29 2017-12-12 Michael M. Yuen Smartwatch assemblies having analog dials with specific functionalities
US10120344B2 (en) 2015-12-29 2018-11-06 Michael M. Yuen Smartwatch assemblies having analog dials with specific functionalities

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WO2015063380A1 (en) 2015-05-07
US20160269719A1 (en) 2016-09-15
KR20160079845A (en) 2016-07-06
FR3012625B1 (en) 2017-04-28
JP2017504841A (en) 2017-02-09
FR3012625A1 (en) 2015-05-01
CN105229513A (en) 2016-01-06

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