EP4367356A1 - Procédé de réalisation d'un support apte à occulter partiellement un rayonnement lumineux - Google Patents
Procédé de réalisation d'un support apte à occulter partiellement un rayonnement lumineuxInfo
- Publication number
- EP4367356A1 EP4367356A1 EP22740528.9A EP22740528A EP4367356A1 EP 4367356 A1 EP4367356 A1 EP 4367356A1 EP 22740528 A EP22740528 A EP 22740528A EP 4367356 A1 EP4367356 A1 EP 4367356A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- spacing
- transparent
- light radiation
- circles
- 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- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B2009/2405—Areas of differing opacity for light transmission control
Definitions
- the field of the present invention is that of methods for producing a support intended to partially obscure light radiation, such as light radiation outside an enclosure.
- the subject of the present invention is such a process as well as a support obtained from such a process.
- a support such as an awning fabric, an advertising display, which is intended to be positioned in front of or on an opening of an enclosure.
- the opening is for example a window, a French window, a bay window, a showcase, a room or a building.
- the opening is for example still a window of a vehicle.
- the support is in particular intended to conceal at least partially light radiation outside the enclosure which illuminates the opening. In other words, the support aims to protect an observer located inside the enclosure from external light radiation.
- the medium is an advertising display
- the medium aims to deliver a message to an observer either located inside or outside the enclosure.
- the support aims in its generality for a light power coming from the external light radiation and transmitted by the support inside the enclosure to be less than an incident light power reaching the support.
- such a support comprises at least one opaque zone offering opacity to external light radiation, and/or allowing absorption and/or reflection of light radiation, and/or forming a printing zone.
- Such a support also comprises transparent zones formed by micro-perforations and/or orifices, for example made during production of the support, by weaving, by thermoplastic manufacture, by printing or the like.
- the transparent zones allow, in addition to obtaining certain mechanical properties, the passage of part of the external light radiation towards the interior of the enclosure, thus preserving natural lighting in the enclosure.
- the transparent areas make it possible to maintain a certain luminosity inside the enclosure.
- the transparent areas also make it possible to retain a certain view of the outside from inside the enclosure, which is of very variable quality. Since this view of the exterior from the enclosure is not the main functionality sought for the support, it is not subject to optimization.
- a vision by an observer of an external object through the support generally turns out to be blurred, or at least devoid of optical quality, which constitutes an in- Convenient.
- An object of the present invention is to propose a method for producing a support which makes it possible to conceal at least partially light radiation outside an enclosure and which also makes it possible to optimize vision of an object outside the enclosure. through the support by an observer located inside the enclosure.
- the present invention aims to make as clear as possible an image of an external object perceived by the eye of an observer located inside the enclosure.
- the present invention aims to propose a method for producing a support which is the best compromise between at least partial occultation of the light radiation and clear vision through the support.
- Another object of the present invention is to provide a method of making a support which allows an observer located on a first side of the support to see objects located on the other side of the support, i.e. a second side of the support, another observer located simultaneously on the second side cannot distinctly see objects located on the first side of the support.
- Another object of the present invention is to provide a support obtained by means of such a production method.
- a method of the present invention is a method of producing a support for partial occultation of light radiation incident on the support.
- the support comprises at least one opaque zone intended to conceal the light radiation incident on the support and a transparent zone intended to allow the light radiation transmitted by the support to pass.
- the production method comprises at least one step of forming a plurality of transparent circles which together constitute the transparent zone.
- the transparent circles have a center and have an identical diameter.
- the centers of the transparent circles are arranged at the intersection of a plurality of columns parallel to each other and of a plurality of lines which are parallel to each other and which are orthogonal to the columns.
- Two contiguous columns are separated by a first spacing.
- Two contiguous lines are separated by a second spacing which is of the order of half of the first spacing at +/- 10%.
- Two neighboring transparent circles in the same column are separated by the first spacing.
- Two neighboring transparent circles on the same line are separated from each other by a third spacing which is about twice the first spacing, +/- 10%.
- the first spacing is between 1.4 mm and 1.8 mm and the diameter is between 1.6 ⁇ mm and 2 ⁇ mm, p being a ratio between a luminous power transmitted from the light radiation passing through the support and a luminous power incident reaching the support.
- Light power is understood to mean an energy flux included in the visible, infrared and ultraviolet domains, which is either expressed in Watt or in Watt/m 2 when it is a surface light power.
- the incident light power corresponds to the amount of energy flow which reaches the support and the transmitted light power corresponds to the amount of energy flow that the support lets through.
- the method of the present invention aims to obtain a support which allows both partial concealment of light radiation which is satisfactory while allowing a clear view of an object through the support.
- the partial concealment of the light radiation is obtained by the opaque zone which forms an obstacle to external light radiation by allowing absorption and/or reflection of the light radiation, the opaque zone optionally forming a printing zone of a message intended to be read or seen by an observer.
- Optimization of the vision of an object is understood to mean the optimal sharpness of an image formed by an optical system, which consists of the support and the eye of the observer, of an object located from the other side of the support relative to the observer.
- the eye is considered here as an optical system with self-adaptive focal length.
- This sharpness is defined in common sense as the quality of perception of the details and the contours of the object.
- the sharpness is objectively defined by physico-physiological criteria, sharpness of vision estimated for example in l/10 th , or by purely physical criteria, such as the angular power of separation of the optical system formed from the support and the eye of the observer, or even its Optical Modulation Transfer Function.
- the light radiation is a light radiation which is located in particular in the visible, this light radiation being from a light source and / or its reflections on objects which are located on the other side of the support relative to the eye of the observer.
- the support is interposed between on the one hand the light source and/or its reflections on objects and on the other hand the observer.
- this light radiation is of an incident light power when the light radiation reaches the support.
- the support forms an at least partial screen against light radiation and only allows transmission of a transmitted light power, which is less than the incident light power.
- the transparent zone formed by the transparent circles of the support is a zone through which an observer located on one side of the support can see an object located on the other side of the support.
- the method for producing the support advantageously comprises any one at least of the following technical characteristics, taken alone or in combination:
- the second spacing is of the order of half of the first spacing
- the third spacing is of the order of twice the first spacing, at +/-
- the third spacing is equal to twice the first spacing
- the first spacing is equal to 1.6 mm
- the diameter is equal to 1.8 ⁇ mm
- the step of forming the plurality of transparent circles is simultaneous with a step of printing the opaque zone on the initially transparent support. It is understood that the transparent circles are produced at the same time as the opaque zone. It is also understood that the opaque zone is produced by printing on the support. In other words, during a printing step, the transparent circles, which are free of a printing ink, and the opaque zone covered with the printing ink are simultaneously treated,
- the step of forming the plurality of transparent circles is simultaneous with a step of producing the opaque zone either by weaving or by thermoplastic manufacturing or the like. It is understood that the transparent circles are produced at the same time as the opaque zone. It is also understood that the opaque zone is produced by weaving the support or else by thermoplastic manufacture, extrusion for example, of the support. In other words, during a weaving step, the opaque zone is woven by creating transparent circles. In other words, during a thermoplastic manufacturing step of the opaque zone, the opaque zone is formed by leaving the transparent circles,
- the step of forming the plurality of transparent circles is a step of drilling of the support to form the transparent circles, the step of forming the transparent circles being subsequent to a step of obtaining the support either by weaving or thermoplastic manufacturing.
- the support is made either by weaving or by thermoplastic manufacturing, then the transparent circles are made later by drilling the support,
- the support is shaped to equip a glazed wall and to partially conceal the light radiation on the glazed wall.
- the support is able to equip a glazed wall to weaken the light radiation passing through the glazed wall.
- the support has the technical characteristics of flexibility, lightness, maneuverability to be easily assigned to a glass wall of a dwelling or a vehicle.
- the present invention also relates to a support obtained by means of such a production method.
- the support comprises at least one opaque zone intended to conceal the light radiation incident on the support and a transparent zone intended to allow light radiation transmitted by the support to pass, the transparent zone comprising a plurality of transparent circles, the transparent circles having a center and being of the same diameter, the centers of the transparent circles being arranged at the intersection of a plurality of columns parallel to each other and of a plurality of lines which are parallel between them and which are orthogonal to the columns, two contiguous columns being separated by a first spacing, two contiguous lines being separated by a second spacing which is of the order of half the first spacing +/- 10%, two neighboring transparent circles of the same column being distant from the first spacing, two neighboring transparent circles of the same row being distant from each other by a third spacing which is on the order of twice the first spacing, +/- 10%, wherein the first spacing is between 1.4 mm and 1.8 mm and the diameter of the transparent circles is between 1.6 VF mm and 2 VP mm, p being a ratio between
- the support advantageously has any one at least of the following technical characteristics, taken alone or in combination:
- the support is a flexible film capable of being glued to the glazed wall, either on an interior face or an exterior face of the glazed wall,
- the support is an awning fabric intended to be placed opposite the glazed wall, either inside or outside an enclosure equipped with the glazed wall, - the support is capable of being arranged facing the glazed wall but also of being retracted from the glazed wall, in particular depending on the light radiation received by the glazed wall.
- the support is, for example, movable between a position of use in which the support is arranged facing the glass wall and a retracted position in which the support is moved away from the glass wall. In the retracted position, the support is for example wound around an axis of the blind arranged at a distance from the glazed wall.
- the support is a printing medium, such as a film capable of receiving and holding a printing ink,
- the support equips an opening that includes an enclosure
- the support equips a glazed wall housed inside the opening
- the support is placed outside the enclosure, to minimize thermal energy transmitted by the light radiation inside the enclosure.
- FIG.l is a sectional view of a support of the present invention
- FIG.2 is a front view of the support illustrated in the previous figure
- FIG.3 is a sectional view of the support illustrated in the previous figures, the support being a flexible film glued to a glazed wall of an enclosure,
- FIG.4 is a cross-sectional view of the support illustrated in Figures 1 and 2, the support being an awning fabric fitted to a glazed wall, inside an enclosure.
- FIG.5 is a cross-sectional view of the support illustrated in Figures 1 and 2, the support being an awning fabric fitted to a glazed wall, outside an enclosure.
- a support 1 of the present invention is interposed between an object 2 and an eye 3 of an observer.
- the support 1 partially delimits two zones Z1, Z2, including a first zone ZI inside which the object 2 is placed and a second zone Z2 inside which the eye 3 of the observer, the eye 3 of the observer being located at a distance F from the support 1.
- Fa first zone Zl also contains a light source 4 capable of generating light radiation 5.
- Fa light source 4 is either a natural light source, such as the sun, or an artificial light source, such as a bulb, a spotlight or the like. Thus, the light source 4 is either located close to the support 1 or at a long distance.
- the incident light power PI corresponds to the flow of energy which is carried by the light radiation 5, in the visible, infrared and ultraviolet regions, and which reaches the support 1
- the incident light power PI is either expressed in Watts or else in Watts/m 2 if the incident light power PI is reported per unit area.
- the support 1 comprises an opaque zone 6 which forms an obstacle to light radiation 5 and a transparent zone 7 which allows light radiation 5 to pass from the first zone ZI to the second zone Z2.
- the opaque character of the opaque zone 6 its ability to stop the light radiation 5
- the transparent character of the transparent zone 7 its ability to transmit the light radiation 5 through it from the first zone ZI to the second area Z2.
- the support 1 has a power to obscure vision from the first zone ZI towards the second zone Z2, in the usual case where a luminosity in the second zone Z2 is lower than a luminosity in the first zone ZI. This characteristic allows an observer located in the second zone Z2 to see objects located inside the first zone ZI, another observer located simultaneously in the first zone ZI not being able to distinctly see objects located in the second zone Z2 .
- the light radiation 5 is transmitted inside the second zone Z2 with a transmitted light power P2 which is lower than the incident light power P1. It is understood that the transmitted light power P2 corresponds to the energy flow which is carried by the light radiation 5, in the visible, infrared and ultraviolet fields, and which is returned by the support 1.
- the transmitted light power P2 is either expressed in Watts or in Watts/m 2 if the transmitted light power P2 is reported per unit area.
- the support 1 is a support for partial occultation of the light radiation 5 incident on the support 1, the opaque zone 6 partially obscuring the light radiation 5 incident on the support 1, and the transparent zone 7 transmitting the light radiation 5 from the first zone ZI to the second zone Z2.
- the support 1 comprises a plurality of transparent circles 8 which together constitute the transparent zone 7.
- the transparent zone 7 consists exclusively of a plurality of transparent circles 8.
- the circles transparencies 8 are all identical to each other.
- Each transparent circle 8 has a center 9 and each transparent circle has a diameter D.
- the centers 9 of the transparent circles 8 are placed at the intersection of a plurality of columns 10 and a plurality of rows 11
- the columns 10 are parallel to each other and the rows 11 are parallel to each other.
- Columns 10 are all orthogonal to rows 11.
- the centers 9 of the transparent circles 8 are arranged on a quad drillage 12 formed of columns 10 and rows 11, two contiguous columns 10 being separated from each other by a first spacing El and two adjoining lines 11 being separated from each other by a second spacing E2, which is of the order of half of the first spacing El, +/- 10%.
- the second spacing E2 is of the order of half the first spacing El, at +/- 5%.
- the second spacing E2 is equal to half of the first spacing El.
- Two neighboring transparent circles 8 of the same column 10 are spaced apart from the first spacing El. It is understood that the first spacing El is taken between the respective centers 9 of two neighboring transparent circles 8 of the same column 10. It is understood that two neighboring transparent circles 8 of the same column 10 are two transparent circles 8 encountered one immediately after the other while traversing the same column 10. In other words, two neighboring transparent circles 8 of the same column 10 are contiguous with each other on this same column 10.
- a third spacing E3 which is twice the first spacing El, +/- 10%.
- the third spacing E3 is of the order of twice the first spacing El, at +/- 5%.
- the third spacing E3 is equal to twice the first spacing El. It is understood that the third spacing E3 is taken between the respective centers 9 of two neighboring transparent circles 8 of the same line 11. It is understood that two neighboring transparent circles 8 of the same line 11 are two transparent circles 8 encountered one immediately after the other while traversing the same line 11. In other words, two neighboring transparent circles 8 of the same line 11 are contiguous with one another on this same line 11.
- the first spacing El is equal to 1.6 mm and the diameter D is equal to 1.8 ⁇ JP expressed in mm.
- the observer it is necessary for the observer to be able to approach as close as possible to the support 1 without distinguishing the opaque zone 6 and the transparent zone 7, that is to say by having a continuous visual perception of the object 2 located on the other side of the support 1.
- the first spacing El, and consecutively the second spacing E2 and the third spacing E3, have the lowest values possible.
- This compromise is particularly applicable to different methods of producing such a support 1.
- the support 1 thus defined advantageously finds different uses adapted to an opening 21 of an enclosure 20, generally equipped with a glazed wall 22, such as a glazed surface of a shop , a building, a vehicle or the like. It is then understood that an interior of the enclosure 20 comprises the second zone Z2 described above and that an environment outside the enclosure 20 comprises the first zone ZI mentioned above.
- the support 1 can be made by micro-perforation of a printing medium, such as a printable polymer film indifferently made of polyester, polycarbonate, PVC , acrylic or the like.
- a printing medium such as a printable polymer film indifferently made of polyester, polycarbonate, PVC , acrylic or the like.
- Such print media are commonly used as an advertising medium.
- an inner face of the film is very generally glued to the glass wall 22.
- the support 1 is indifferently glued to an inner face of the glass wall 22, such as illustrated, or on an exterior face of the glazed wall 22 with respect to the enclosure 20.
- the printing medium and the printing inks are chosen and sized in such a way as to withstand the constraints linked to their use: mechanical resistance, adaptation to the indoor or outdoor environment, etc.
- the support 1 can also be obtained by micro-perforation of a sheet of various kinds, such as a polymer film, a natural, synthetic or mixed fabric, woven or non-woven or the like.
- the micro-perforation can be carried out on a pre-existing sheet by using a micro-perforation machine. It can also be integrated into the manufacturing process, for example during the extrusion of a film or a polymer fabric or even during the weaving of a natural, synthetic or hybrid fabric.
- the support 1 can also be made by printing, single or double-sided, the opaque zone 6 on a transparent polymer film either made of polyester, polycarbonate, PVC, acrylic or the like.
- the polymer film and the printing inks must be chosen and sized in such a way as to withstand the constraints linked to their use: mechanical resistance, adaptation to the environment inside or outside the enclosure 20, winding capacity, etc.
- the support 1 is then an anti-sun awning fabric. It is then understood that the support aims in particular to protect against the thermal effects of the light radiation 5 inside the enclosure 20.
- the support 1 can be used to produce an anti-sun blind, interior as illustrated in FIG. 4 or exterior as represented in [Lig.5].
- Such a support 1 preserves the natural lighting of the enclosure 20 and ensures, from inside the enclosure 20, an optimal quality view of an environment outside the enclosure 20.
- anti-sun blind is meant a blind for a window, door window or bay window, fitted to the opening 21 that the enclosure 20 comprises.
- the opening 21 is for example provided with a glass wall 22 on which the support 1 is glued inside or outside the glazed wall 22 or else against which the support 1 is placed at a distance, in particular being arranged parallel to the glazed wall 22 either inside the enclosure 20 or outside enclosure 20.
- the opening 21 When the opening 21 is directly exposed to light radiation 5, such as solar radiation and/or its reflections on the elements located in the first zone Z1, it is possible to significantly reduce the energy of the light radiation 5 penetrating into the enclosure 20, and therefore to minimize a rise in temperature at the inside the enclosure 20 and the direct or indirect dazzling effects on the observer.
- light radiation 5 such as solar radiation and/or its reflections on the elements located in the first zone Z1
- the light radiation 5, ultraviolet, visible and infrared, arriving on the opaque zone 6 of the support 1 is absorbed or reflected by the opaque zone 6, the anti-solar function thus being ensured. Only the small part of the light radiation 5 passing through the transparent circles 8 enters the enclosure.
- the support 1 comprising an inner surface which is advantageously matte, that is to say with a high diffusion coefficient, the inner surface greatly attenuates the parasitic effects of reflection towards the inside of the enclosure 20.
- a ratio between a total surface of the transparent zone 7 on a surface of the support 1 determines the proportion of the light radiation 5 penetrating into the enclosure 20 through the support 1, thus ensuring natural lighting of the second zone Z2 ( proportion generally comprised between 5% and 20% of the incident light radiation 5) and, in addition, the proportion of the incident light radiation 5 stopped by the support 1 (thus comprised between 95% and 80%). Anti-heat characteristics and natural light levels are thus easily configurable.
- the quality of vision from the second zone Z2 to the first zone Z1, for a percentage p of the light radiation 5 passing through the support 1 via the transparent circles 8, is optimized by the choice of the values of the first es spacing El and diameter D, as defined above.
- Such a support 1 is advantageously obtained from the implementation of a method which comprises at least one step of forming a plurality of such transparent circles 8 which together constitute the transparent zone 7.
- the step of forming the transparent zone 7 is for example simultaneous with a step of printing the opaque zone 6 on a transparent flexible film. This process can be used to produce an anti-sun awning fabric.
- the step of forming the transparent zone 7 is for example carried out by micro-perforation of a printable flexible film.
- This support 1 is then printed to form an advertising film intended to deliver a message to an observer either housed inside or outside the enclosure 20.
- the step of forming the transparent zone 7 is for example still a step of drilling the support 1 to form the transparent circles 8, the step of forming the transparent circles 8 being subsequent to a step of obtaining the support 1 by weaving or manufacturing thermoplastic or the like, the support 1 then being formed of a natural, synthetic or hybrid, woven or non-woven, in particular textile web. This support then forms an anti-sun awning fabric.
- the step of forming the transparent zone 7 is for example still simultaneous with a step of producing the opaque zone 6 either by weaving or by thermoplastic fabrication or the like.
- the opaque zone 6 is woven while sparing the transparent circles 8.
- the transparent zone 7 is formed. sparing the transparent circles 8. This support 1 then forms an anti-sun awning fabric.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Optical Elements Other Than Lenses (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2107419A FR3125106B1 (fr) | 2021-07-08 | 2021-07-08 | Procédé de réalisation d’un support apte à occulter partiellement un rayonnement lumineux |
| PCT/IB2022/056175 WO2023281379A1 (fr) | 2021-07-08 | 2022-07-04 | Procédé de réalisation d'un support apte à occulter partiellement un rayonnement lumineux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4367356A1 true EP4367356A1 (fr) | 2024-05-15 |
Family
ID=77711063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22740528.9A Withdrawn EP4367356A1 (fr) | 2021-07-08 | 2022-07-04 | Procédé de réalisation d'un support apte à occulter partiellement un rayonnement lumineux |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4367356A1 (fr) |
| FR (1) | FR3125106B1 (fr) |
| WO (1) | WO2023281379A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3144630A1 (fr) * | 2023-01-03 | 2024-07-05 | Prothelios | Procédé de réalisation d’un support destiné à occulter partiellement un rayonnement lumineux |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE867442C (de) * | 1943-09-01 | 1953-02-16 | Balatum Nv | Dem Sonnenlicht wehrender Vorhang |
| DE1089939B (de) * | 1956-07-07 | 1960-09-29 | Konrad Hornschuch Ag Werk Weis | Vorhangstoff |
| DE3128487A1 (de) * | 1981-07-18 | 1983-01-27 | Robert Bosch Gmbh, 7000 Stuttgart | Waermedaemmanordnung fuer fenster, tueren und dergleichen |
-
2021
- 2021-07-08 FR FR2107419A patent/FR3125106B1/fr not_active Revoked
-
2022
- 2022-07-04 WO PCT/IB2022/056175 patent/WO2023281379A1/fr not_active Ceased
- 2022-07-04 EP EP22740528.9A patent/EP4367356A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR3125106B1 (fr) | 2023-06-02 |
| WO2023281379A1 (fr) | 2023-01-12 |
| FR3125106A1 (fr) | 2023-01-13 |
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