EP3335775A1 - Movie projection room suitable for large-screen projection - Google Patents

Movie projection room suitable for large-screen projection Download PDF

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Publication number
EP3335775A1
EP3335775A1 EP16306733.3A EP16306733A EP3335775A1 EP 3335775 A1 EP3335775 A1 EP 3335775A1 EP 16306733 A EP16306733 A EP 16306733A EP 3335775 A1 EP3335775 A1 EP 3335775A1
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EP
European Patent Office
Prior art keywords
screen
projection
platform
distance
row
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.)
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Application number
EP16306733.3A
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German (de)
French (fr)
Inventor
Pierre Chican
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Pierre Chican
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Individual
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Publication date
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Priority to EP16306733.3A priority Critical patent/EP3335775A1/en
Priority to PCT/EP2017/053432 priority patent/WO2018114059A1/en
Priority to EP17822415.0A priority patent/EP3554663B8/en
Priority to PT178224150T priority patent/PT3554663T/en
Priority to PCT/FR2017/053556 priority patent/WO2018115642A1/en
Priority to US16/470,851 priority patent/US11008768B2/en
Priority to MX2019007214A priority patent/MX2019007214A/en
Priority to HUE17822415A priority patent/HUE052400T2/en
Priority to CN201780086053.1A priority patent/CN110325253B/en
Priority to JP2019554025A priority patent/JP7023533B2/en
Priority to CA3047559A priority patent/CA3047559A1/en
Priority to BR112019012583-3A priority patent/BR112019012583B1/en
Priority to PL17822415T priority patent/PL3554663T3/en
Priority to KR1020197021032A priority patent/KR102388556B1/en
Priority to DK17822415.0T priority patent/DK3554663T3/en
Priority to ES17822415T priority patent/ES2840304T3/en
Publication of EP3335775A1 publication Critical patent/EP3335775A1/en
Priority to SA519402144A priority patent/SA519402144B1/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
    • E04H3/30—Constructional features of auditoriums
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J25/00—Equipment specially adapted for cinemas
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/12—Theatre, auditorium, or similar chairs

Definitions

  • the invention is in the field of cinematographic projection rooms, and in particular large-screen projection rooms.
  • IMAX® a contraction of Image Maximum. This technology makes it possible to project large images with better resolution.
  • a standard IMAX® screen is approximately 25m wide by 15m high and is intended to increase the spectators' immersion in the image.
  • the disposition of the spectators facing the screen must also be adapted. This is to allow each viewer, regardless of the rank where it is located, to view the entire height of the projected image without having to overthrow the head excessively.
  • the layout of the audience is part of a set of dimensional characteristics of the room which is established according to technical and architectural criteria. In France, these criteria are governed by Standard AFNOR NF-S 27001 established according to the Recommendations of the Technical Commission Superior of Image and Sound CST-RT-035.
  • FIGS. 1 and 2 illustrate in section two IMAX® existing cinematographic projection rooms namely the IMAX - Pathé Disney Village hall dating from 2000 for the figure 1 , and the IMAX - Pathé - Valletta du var dating from 2016 for the figure 2 .
  • the volume of a movie theater 1.1a is dimensioned in width to contain the width of the screen 2, in height to contain the height of the screen 2 and in length from the screen 2 to a bottom wall 3 at which is arranged a projection booth 4 at a distance D from the screen.
  • the zone of implantation of the chairs also called spating 5 extends over a part of the length of the room 1, 1a.
  • the dimensions L, H of the largest projected image correspond to the dimensions L, H of the canvas of the screen.
  • the gradation 5 is continuous by being constituted by a succession of rows of armchairs, each row being accessible by means of one or more stair aisles (not visible in the figures) on which are provided bearings that serve each of the ranks.
  • the graduation 5 extends along the axis of projection XX 'considered perpendicular to the screen 2 (this projection axis XX' is parallel to the longitudinal axis of the room not shown), since a first rank 6 the lowest and closest to the screen 2, to a last rank 7 the highest and farthest from the screen 2.
  • the first row 6 is located at a distance D1 from the screen and the last row 7 to a distance D2 from the screen 2, D2 being naturally greater than D1.
  • It also considers the seat depth D3 extending along an axis XX'1 parallel to the axis of projection XX 'from the first row 6 to the last row 7 and the seat height H3 defining the height equal to the altimetric difference between the first row 6 and the last row 7.
  • the slope slope which is defined by the angle ⁇ formed between the plane P passing through the eye of the spectators of the first 6 and last 7 rows and a axis XX'1 parallel to the axis of projection XX '.
  • the screen has a width L of about 25 meters and a height H of about 15 meters.
  • the distance D1 of the first row 6 to the screen 2 is about 10 meters or about 0.4 x L.
  • the angle ⁇ defining the graduation slope is 15 degrees for a seat depth of about 23 meters, which results in a seat height H3 of about 6.20 meters or about 0.4 x H , and a distance D2 of the last row 7 to the screen of about 33 meters or about 1.3 x L.
  • the angle ⁇ defining the slope of graduation is 24 degrees for a seat depth of about 19.4 meters, which results in a seat height H3 of about 8.7 meters or about 0.6 x H, and a distance D2 of the last row 7 to the screen about 29 meters or about 1.2 x L.
  • the first-rank spectators 6 must operate an excessive tilting of the head to see the entire projected image.
  • This tilting is characterized by two angles.
  • the first angle ⁇ 1 is taken between an axis XX'1 parallel to the longitudinal axis XX 'and perpendicular to the screen 2, and a straight line at the mid-height H / 2 of the largest projected image, here materialized by the center O of the screen 2.
  • the second angle ⁇ 2 is taken between the longitudinal axis XX ', and a straight line to the upper edge of the largest projected image, here is shown by the upper edge 8 of the screen 2.
  • the Higher Technical Commission for Image and Sound recommends that the angle ⁇ 1 be less than or equal to 30 ° and that the angle ⁇ 2 be less than or equal to 45 ° .
  • the first angle ⁇ 1 is 25 ° and the second angle ⁇ 2 is 50 °, the latter does not meet the recommendations of the CST.
  • the first angle ⁇ 1 is 33 ° and the second angle ⁇ 2 is 54 °. None of these two angles meet the recommendations of the CST.
  • the CST also defines criteria for distances D1 and D2.
  • distance D1 from first row 6 to screen 2 it is recommended to be at least 0.6 x L (where L is the largest width of the image), and at least one 0.8 x L to bring comfort to first-class spectators.
  • distance D2 from the last row 7 on the screen it is recommended to be at the plus at a value of 2.9 x L, and at most at a value of 2.2 x L for a better comfort of the spectators of the last row. It can be seen that for the two halls figures 1 and 2 , the distance D1 of 0.4 x L is well below the recommendations.
  • the projection booth 4 is necessarily located above the last rank 7, and at a height (2 meters according to the norm) compared to the last rank 7 which allows a spectator of the latter rank 7 to get up without being in the projection beam of the image.
  • the projection beam is defined geometrically by the cone of light from the objective of the projector whose lower limit is between it and the bottom of the screen and the upper limit between it and the top of the screen. screen. This results in a positioning of the projection booth 4 at an altimetry greater than the half height H / 2 of the screen, which causes a vertical distortion of the image. This vertical distortion is also the subject of CST recommendations and must remain less than 5 °, and preferably less than 3 ° to ensure good quality of the projected image.
  • the seat height H3 is also subject to the value of the angle ⁇ of the gradation slope which must meet the standards for fire safety of establishments receiving public and accessibility of persons with reduced mobility .
  • the maximum permitted slope of a staircase is 30 °.
  • the access stairways have landings to access the rows of chairs, reducing the maximum allowable slope of the grading to about 24 degrees. It is therefore not possible, in current rooms, to provide a continuous gradation slope greater than 24 degrees.
  • the invention relates to a cinematographic projection room complying with the AFNOR NF-S 27001 standard established according to the Recommendations of the Technical Superior Commission for Image and Sound CST-RT-035 and allowing all the spectators, from the first to the next. last row, to be immersed in a greater way compared to the current traditional rooms in the projected image without having to make an excessive reversal of head.
  • the invention further provides a cinematographic projection room for which the vertical geometric image distortion is almost zero.
  • the invention also relates to a cinematographic projection room that gives spectators a double sensation of intimacy and ceremoniity.
  • the cinematographic projection room of the invention provides an area of implantation armchairs unpublished configuration. These are suspended platforms integral with the bottom wall. This configuration of the seating area of the chairs allows to move the first row or rows of the screen and to bring the last row or rows of the screen (or in other words to reduce the seat depth) since the standard relative to the gradation slope does not apply to this discontinuous gradation distributed in suspended platforms. Within each platform, the gradation slope respects the standards in force.
  • the platforms can be spread over all or most of the height of the projected image which allows to increase the number of seats and distribute the spectators in relation to the entire surface of the image.
  • the projection booth can be positioned exactly in the geometric axis of the center of the screen and the image.
  • CST recommendations refer to the dimensions (width L, height H) of the largest projected image.
  • the dimensions L, H of the largest projected image correspond to the dimensions L, H of the screen. It is admitted, of course, that the screen in question has dimensions corresponding to the format of the projected image. If this were not the case, it is the L, H dimensions of the largest projected image that must be considered.
  • the volume of the room of the invention 10 is defined by a ceiling 11, a floor 12, a front wall 13 in front of which is implanted a screen 14, and a bottom wall 15.
  • the screen 14 has a concave circular ergonomics already known in some current rooms. It is considered in this example that the width L of the screen is 29 meters and that its height H is 15.30 meters, it being understood that the ratio L / H is most often defined by 1.66 ⁇ L / H ⁇ 2.39.
  • the seating area of the chairs 16 comprises a plurality of suspended platforms 17 integral with the bottom wall 15.
  • the platforms 17 are distributed in the lower platforms 17a, intermediate platforms 17b and the highest platforms 17c, along the entire height H of the screen 14.
  • the lowest platforms 17a are closest to the screen 14 and the high platforms 17c are furthest apart, it being understood that each platform 17, in addition to the lower platforms, is situated farther from the screen than the lower platforms (except for the platform forming the support of the cabin of projection, as will be seen later).
  • the front edge 18 closest to the screen 14 of each platform 17 is located at a distance Dsup from the screen 14 which is greater than the distance Dinf from the front edge 18 closest to the screen 14 of the platforms lower.
  • the distance D1, D1a ( figure 5 ) of the first ranks 20 differs according to the lateral position of the lowest platform 17a. It is to be considered that all distances D1, D1a, including the smallest, must meet the criteria defined below.
  • the distance D2 of the last ranks on the screen 14 is identical for the figures 3 , 4 and 5 since this distance D2 is taken in the same plane of section. In the illustrated example, three rows of chairs are provided by platform 17.
  • the front edge 18 closest to the screen 14 of each platform 17, in addition to the lower platforms, is located at a distance Dsup from the screen which does not position this front edge 18 in the cone of vision Y starting from the eye of the spectator located at the last rank of the platform immediately below and aimed at the upper edge 19 of the screen 14.
  • the angle ⁇ defining a projected graduation slope from the first row 20 of the lowest platforms 17a to the last row 21 of the highest platforms 17c is 50 degrees. More precisely, the angle ⁇ is considered to be the angle formed between the plane P passing through the first row 20 and the last row 21 of the implantation zone 16 with the axis XX'1 which is parallel to the projection axis XX '(according to the cutting planes of the figures 3 and 4 ) and perpendicular to the screen 14.
  • the angle ⁇ 3 defining the slope slope within a platform 17 is in turn less than 24 degrees.
  • the first distance D1a of the first row 20 to the screen is about 17.5 meters or about 0.6 x L, thus complying with the recommendations of the CST.
  • the spectators located in the first row 20 of the lowest platform 17a do not have to make a large tilting of the head to see the entirety of the projected image.
  • the angle ⁇ 1 previously defined and aimed at the mid-height H / 2 of the largest projected image is between 20 and 24 degrees, and the angle ⁇ 2 for the upper edge 19 of the image is between 37 ° and 41 °. °, these two values being substantially lower than the recommendations of the CST, illustrating by the same visual comfort of these first ranks 20 compared to current rooms.
  • the distance D1 ( figures 4 and 5 ) of the first row 20 of the lowest platform 17a located in the projection axis XX 'on the screen is greater than the distance D1a shown in FIG. figure 3 , so this distance D1 is necessarily greater than 17.5 meters, also respecting the recommendations of the CST.
  • the configuration of the implantation zone in suspended platforms makes it possible to advance the last rows with respect to the screen 14.
  • the second distance D2 of the last row 21 on the screen 14 is approximately 29.3 meters is almost 1 x L, which is well below the recommendations of the CST but also below this distance D2 of the rooms of the prior art illustrated on the figures 1 and 2 .
  • the increase in the first distance D1, D1a and the decrease in the second distance D2 causes a decrease in the seat depth D3, D3a which is approximately 11.80 meters (for the distance D3a shown in FIG. figure 3 ) against respectively 22.8 meters for the hall of the figure 1 and 19.4 meters for the hall of the figure 2 .
  • the decrease in the seat depth resulting from the increase of the angle ⁇ of the seating area of the chairs 16 thus makes it possible to roll back the first rows of the screen and advance the last rows (or in other words to ensure an increased proximity of all the spectators to the image compared to a traditional design room of comparable volume and gauge) by increasing the visual comfort and immersion in the image of all the spectators.
  • Another characteristic illustrates the new configuration of the implantation zone 16 with regard to the screen.
  • This is the distance Dmoy between the median row 24 of the implantation zone 16 and the screen 14.
  • this distance Dmoy is 0.8 x L while for the room of the figure 1 , the distance Dmoy is 1.2 x L and for the room of the figure 2 , this distance Dmoy is 1 x L.
  • This distance Dmoy is substantially greater taken in the axis of projection XX 'but remains substantially lower than those of the rooms of figures 1 and 2 .
  • H3 H.
  • This arrangement is made possible by the high angle ⁇ of the seating area of the chairs 16 and thus the decrease of the seat depth D3a, but also by the possibility of implanting the projection booth 22 opposite the center O of the screen 14 between the platforms 17.
  • the height of the last row is no longer constrained by the installation of the projection booth.
  • the visual escape between the spectators allowing each spectator, whatever his position in the room, the vision of the entire screen, is provided in the room of the invention.
  • the visual escape is determined in the following way (with reference to the figure 4 ): We materialize the line from the eye of the spectator of the rank seated at the rank n + 1 to the lower edge 23 of the screen 14. We materialize the vertical line passing through the viewer's view of the rank n. We measure the vertical distance between the point of intersection of these two lines and the viewer's eye of rank n, we then obtain the visual escapement t, also called head clearance value which is greater than or equal to 12cm.
  • the projection booth 22 is located exactly opposite the geometric axis of the center O of the screen 14 (or the largest projected image) on a dedicated projection platform 22a.
  • This platform 22a has a front edge 22b set back from the platform above it, forming an exception to the platform layout principle defined above.
  • the vertical geometric distortion and the horizontal geometric distortion are close to 0 ° or even zero, which confers an optimum projected image quality. It is therefore possible to distribute the spectators over the entire height of the image while enjoying excellent image quality.
  • the distribution of the spectators can be performed on only part of the height H, preferably centered on the center O of the screen 14, that is to say that the median row 24 of the area of implantation of armchairs 16 located at height H3 / 2 is located opposite center O of the screen or the largest projected image.
  • the lowest platform or platforms 17a are located so that the eye of the spectator of the first rank 20 is next to the screen or, at the limit , opposite the lower edge 23 of the screen. Similarly, the viewer's eye of the last row 21 is next to the screen or, at the limit, facing the upper edge 19 of the screen.
  • all the platforms 17 are implanted next to the screen, and therefore the largest projected image, including with respect to its upper and lower edges and moreover, all the platforms 17 are centered in height on the one hand and other of the center O of the screen.
  • the seating area of the chairs 16 allows immersion in the image of all spectators, from first to last row.
  • the platforms 17 are staggered on the bottom wall 15 over the entire width L of the screen 14 (not visible in this figure) and over the entire height H of the screen 14.
  • the significant offset of the distribution in quincunx visible on the figure 6 results from the arcuate configuration of the seating area of the chairs 16.
  • This staggered distribution allows to uniformly arrange the platforms 17 while providing sufficient height between two upper and lower platforms along a vertical axis ZZ 'to avoid , as explained previously, that the front edge 18 of the upper platform is located in the line of vision Y from the eye of the viewer located in the last row of the lower platform and aimed at the upper edge of the screen.
  • the platforms are located on 4 floors A1, A2, A3, A4 which correspond, with reference to figures 6 and 7 at four levels of bearings P1, P2, P3, P4 situated outside the room 10 behind the bottom wall 15.
  • Each level P1 level, P2, P3, P4 serves higher platforms 17sup a staircase rising 25, and lower platforms 17inf by descending stairs 26.
  • the landing can be arranged to make the spectators wait on these platforms 17sup, 17inf. This arrangement may be different depending on the level, so that personalized services can be proposed according to the position of the spectators in the room.
  • each platform has an edge 27 which is circular and comprises three rows of chairs.
  • the spectators installed on a platform 17 thus have a feeling of intimacy while enjoying the ceremoni character of a current projection room.
  • the bottom wall 15 is preferably in a reverse arc relative to the concave circular ergonomics of the screen 14 (not visible on the screen). figure 7 ), by allowing a better convergence of the spectators towards the center of the image.
  • the room 100 has the same characteristics as those described for the room of the first variant of the Figures 3 to 7 .
  • the only difference lies in the number and shape of the suspended platforms 170.
  • the seating area of the chairs 160 comprises four suspended platforms 170 extending over the entire height H of the screen 140 and over the entire width L of the screen 140.
  • this width L is increasing from the screen 140 to the bottom wall 150 due to the concave circular ergonomics of the screen 140 and the geometry of the screen. the resulting room.
  • each of the platforms 170 has 3 rows of chairs which present a discontinuity for the arrangement aisles.
  • the projection booth not visible in these figures is also located opposite the center O of the screen 140 in the bottom of the third suspended platform 170. On this platform, a zone 171 is devoid of armchairs to ensure the projection of the image on the screen 140 from the projection booth.
  • the suspended platforms can thus have shapes and a specific number, the discontinuity of the seating area of the chairs allowing in any case at the angle of graduation ⁇ to present a value well greater than 24 degrees by immersing viewers in the image.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Multimedia (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Image Generation (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

L'invention porte principalement sur une salle de projection cinématographique comportant un écran de projection qui est apte à projeter une image, comportant une zone d'implantation des fauteuils (16) ou gradinage qui s'étend depuis un premier rang (20) situé à une première distance (D1) la plus proche de l'écran (14) jusqu'à un dernier rang (21) situé à une seconde distance (D2) la plus éloignée de l'écran (14) en définissant une hauteur d'assise (H3) entre le premier (20) et le dernier (21) rang, et une pente de gradinage définie par l'angle (±) formé entre le plan (P) passant par le premier rang (20) et le dernier rang (21) du gradinage avec l'axe de projection de l'image (XX'). La salle de l'invention est essentiellement caractérisée en ce que la zone d'implantation des fauteuils (16,160) comporte une pluralité de plateformes suspendues (17 ; 17a,17b,17c ;170) formant un gradinage discontinu le long d'au moins une partie de la hauteur (H) de l'écran (14,140) et comportant chacune au moins un rang de fauteuils, et en ce que l'angle (±) définissant la pente de la zone d'implantation de fauteuil (16,160) est supérieur à 24°, et en ce que l'angle (±1) définissant la pente de gradinage de chaque plateforme (17 ;17a,17b,17c,170) est inférieur à 24°.The invention relates primarily to a cinematographic projection room having a projection screen which is capable of projecting an image, comprising a seating area of the chairs (16) or gradation which extends from a first row (20) located at a first distance (D1) closest to the screen (14) to a last row (21) located at a second distance (D2) farthest from the screen (14) by defining a seat height (H3) between the first (20) and the last (21) rank, and a gradation slope defined by the angle (±) formed between the plane (P) passing through the first row (20) and the last row ( 21) of the scaling with the projection axis of the image (XX '). The room of the invention is essentially characterized in that the seating area of the chairs (16,160) comprises a plurality of suspended platforms (17; 17a, 17b, 17c; 170) forming a discontinuous gradation along at least one part of the height (H) of the screen (14,140) and each having at least one row of seats, and in that the angle (±) defining the slope of the chair seating area (16,160) is greater than at 24 °, and in that the angle (± 1) defining the gradation slope of each platform (17; 17a, 17b, 17c, 170) is less than 24 °.

Description

L'invention s'inscrit dans le domaine des salles de projection cinématographique, et en particulier des salles de projection à grand écran.The invention is in the field of cinematographic projection rooms, and in particular large-screen projection rooms.

Pour augmenter l'impact visuel d'une projection cinématographique et accroître l'immersion des spectateurs dans l'image, la taille des écrans de projection a significativement augmenté ces dernières années. Un nouveau format de pellicule, puis d'image numérique, a été mis au point et connu sous le nom d'IMAX®, contraction de Image Maximum. Cette technologie permet de projeter des images de grandes dimensions avec une meilleure résolution. Un écran standard IMAX® mesure environ 25m de largeur pour 15m de hauteur et est destiné à augmenter l'immersion des spectateurs dans l'imageTo increase the visual impact of a cinematographic projection and to increase the spectators' immersion in the image, the size of projection screens has significantly increased in recent years. A new film format, then digital image, was developed and known as IMAX®, a contraction of Image Maximum. This technology makes it possible to project large images with better resolution. A standard IMAX® screen is approximately 25m wide by 15m high and is intended to increase the spectators' immersion in the image.

Pour assurer ce nouveau rapport à l'image, la disposition des spectateurs face à l'écran doit également être adaptée. Il s'agit notamment de permettre à chaque spectateur, quel que soit le rang où il est situé, de visualiser toute la hauteur de l'image projetée sans avoir à renverser excessivement la tête.To ensure this new relationship to the image, the disposition of the spectators facing the screen must also be adapted. This is to allow each viewer, regardless of the rank where it is located, to view the entire height of the projected image without having to overthrow the head excessively.

La disposition des spectateurs s'inscrit dans un ensemble de caractéristiques dimensionnelles de la salle qui est établi selon des critères techniques et architecturaux. En France, ces critères sont régis par la Norme AFNOR NF-S 27001 établie suivant les Recommandations de la Commission Supérieure Technique de l'Image et du Son CST-RT-035.The layout of the audience is part of a set of dimensional characteristics of the room which is established according to technical and architectural criteria. In France, these criteria are governed by Standard AFNOR NF-S 27001 established according to the Recommendations of the Technical Commission Superior of Image and Sound CST-RT-035.

On se réfère aux figures 1 et 2 qui illustrent en coupe deux salles de projection cinématographiques existantes IMAX® à savoir la salle IMAX - Pathé Disney Village datant de 2000 pour la figure 1, et la salle IMAX - Pathé - La Valette du var datant de 2016 pour la figure 2.We refer to figures 1 and 2 which illustrate in section two IMAX® existing cinematographic projection rooms namely the IMAX - Pathé Disney Village hall dating from 2000 for the figure 1 , and the IMAX - Pathé - Valletta du var dating from 2016 for the figure 2 .

Le volume d'une salle de cinéma 1,1a est dimensionné en largeur pour contenir la largeur de l'écran 2, en hauteur pour contenir la hauteur de l'écran 2 et en longueur depuis l'écran 2 jusqu'à une paroi de fond 3 au niveau de laquelle est agencée une cabine de projection 4 à une distance D de l'écran. La zone d'implantation des fauteuils également appelée gradinage 5 s'étend sur une partie de la longueur de la salle 1, 1a. On se réfère à la plus grande largeur L et à la plus grande hauteur H de l'image projetée pour définir les caractéristiques de l'implantation du gradinage 5 telles qu'elles sont énoncées dans les recommandations de la CST. Dans la présentation qui suit, on considère que les dimensions L,H de la plus grande image projetée correspondent aux dimensions L,H de la toile de l'écran.The volume of a movie theater 1.1a is dimensioned in width to contain the width of the screen 2, in height to contain the height of the screen 2 and in length from the screen 2 to a bottom wall 3 at which is arranged a projection booth 4 at a distance D from the screen. The zone of implantation of the chairs also called gradining 5 extends over a part of the length of the room 1, 1a. Reference is made to the largest width L and the largest height H of the projected image to define the characteristics of the implantation of the grading 5 as stated in the recommendations of the CST. In the following presentation, we consider that the dimensions L, H of the largest projected image correspond to the dimensions L, H of the canvas of the screen.

En référence aux figures 1 et 2, le gradinage 5 est continu en étant constitué d'une succession de rangs de fauteuils, chaque rang étant accessible au moyen d'une ou de plusieurs allées en escaliers (non visibles sur les figures) sur lesquels sont ménagés des paliers qui desservent chacun des rangs.With reference to figures 1 and 2 , the gradation 5 is continuous by being constituted by a succession of rows of armchairs, each row being accessible by means of one or more stair aisles (not visible in the figures) on which are provided bearings that serve each of the ranks.

Le gradinage 5 s'étend selon l'axe de projection XX' considéré perpendiculairement à l'écran 2 (cet axe de projection XX' est parallèle à l'axe longitudinal de la salle non représenté), depuis un premier rang 6 le plus bas et le plus proche de l'écran 2, jusqu'à un dernier rang 7 le plus haut et le plus éloigné de l'écran 2. Le premier rang 6 est situé à une distance D1 de l'écran et le dernier rang 7 à une distance D2 de l'écran 2, D2 étant naturellement supérieur à D1. On considère également la profondeur d'assise D3 s'étendant selon un axe XX'1 parallèle à l'axe de projection XX' depuis le premier rang 6 jusqu'au dernier rang 7 et la hauteur d'assise H3 définissant la hauteur égale à la différence altimétrique entre le premier rang 6 et le dernier rang 7. On considère enfin la pente de gradinage qui est définie par l'angle α formé entre le plan P passant par l'oeil des spectateurs des premier 6 et dernier 7 rangs et un axe XX'1 parallèle à l'axe de projection XX'.The graduation 5 extends along the axis of projection XX 'considered perpendicular to the screen 2 (this projection axis XX' is parallel to the longitudinal axis of the room not shown), since a first rank 6 the lowest and closest to the screen 2, to a last rank 7 the highest and farthest from the screen 2. The first row 6 is located at a distance D1 from the screen and the last row 7 to a distance D2 from the screen 2, D2 being naturally greater than D1. It also considers the seat depth D3 extending along an axis XX'1 parallel to the axis of projection XX 'from the first row 6 to the last row 7 and the seat height H3 defining the height equal to the altimetric difference between the first row 6 and the last row 7. Finally, we consider the slope slope which is defined by the angle α formed between the plane P passing through the eye of the spectators of the first 6 and last 7 rows and a axis XX'1 parallel to the axis of projection XX '.

Pour les deux salles représentées sur les figures 1 et 2, l'écran présente une largeur L d'environ 25 mètres et une hauteur H d'environ 15 mètres. Pour ces deux salles, la distance D1 du premier rang 6 à l'écran 2 est d'environ 10 mètres soit environ 0,4 x L.For the two rooms represented on the figures 1 and 2 the screen has a width L of about 25 meters and a height H of about 15 meters. For these two rooms, the distance D1 of the first row 6 to the screen 2 is about 10 meters or about 0.4 x L.

Pour la salle de la figure 1, l'angle α définissant la pente de gradinage est de 15 degrés pour une profondeur d'assise d'environ 23 mètres, ce dont il résulte une hauteur d'assise H3 d'environ 6,20 mètres soit environ 0,4 x H, et une distance D2 du dernier rang 7 à l'écran d'environ 33 mètres soit environ 1,3 x L.For the hall of the figure 1 , the angle α defining the graduation slope is 15 degrees for a seat depth of about 23 meters, which results in a seat height H3 of about 6.20 meters or about 0.4 x H , and a distance D2 of the last row 7 to the screen of about 33 meters or about 1.3 x L.

Pour la salle de la figure 2 de conception plus récente, l'angle α définissant la pente de gradinage est de 24 degrés pour une profondeur d'assise d'environ 19,4 mètres, ce dont il résulte une hauteur d'assise H3 d'environ 8,7 mètres soit environ 0,6 x H, et une distance D2 du dernier rang 7 à l'écran d'environ 29 mètres soit environ 1,2 x L.For the hall of the figure 2 of more recent design, the angle α defining the slope of graduation is 24 degrees for a seat depth of about 19.4 meters, which results in a seat height H3 of about 8.7 meters or about 0.6 x H, and a distance D2 of the last row 7 to the screen about 29 meters or about 1.2 x L.

Il résulte de la configuration de ces deux salles que les spectateurs du premier rang 6 doivent opérer à un basculement excessif de la tête pour voir l'intégralité de l'image projetée. Ce basculement se caractérise par deux angles. Partant de l'oeil du spectateur, ici du premier rang 6, le premier angle α1 est pris entre un axe XX'1 parallèle à l'axe longitudinal XX' et perpendiculaire à l'écran 2, et une droite visant la mi-hauteur H/2 de la plus grande image projetée, ici matérialisé par le centre O de l'écran 2. Le second angle α2 est pris entre l'axe longitudinal XX', et une droite visant le bord supérieur de la plus grande image projetée, ici matérialisée par le bord supérieur 8 de l'écran 2. La Commission Supérieure Technique de l'Image et du Son recommande que l'angle α1 soit inférieur ou égal à 30° et que l'angle α2 soit inférieur ou égal à 45°.As a result of the configuration of these two rooms, the first-rank spectators 6 must operate an excessive tilting of the head to see the entire projected image. This tilting is characterized by two angles. Starting from the eye of the viewer, here of the first row 6, the first angle α1 is taken between an axis XX'1 parallel to the longitudinal axis XX 'and perpendicular to the screen 2, and a straight line at the mid-height H / 2 of the largest projected image, here materialized by the center O of the screen 2. The second angle α2 is taken between the longitudinal axis XX ', and a straight line to the upper edge of the largest projected image, here is shown by the upper edge 8 of the screen 2. The Higher Technical Commission for Image and Sound recommends that the angle α1 be less than or equal to 30 ° and that the angle α2 be less than or equal to 45 ° .

Pour la salle de la figure 1, le premier angle α1 est de 25° et le second angle α2 est de 50°, ce dernier ne répondant donc pas aux recommandations de la CST. Pour la salle de la figure 2, le premier angle α1 est de 33° et le second angle α2 est de 54°. Aucun de ces deux angles ne répondent aux recommandations de la CST.For the hall of the figure 1 , the first angle α1 is 25 ° and the second angle α2 is 50 °, the latter does not meet the recommendations of the CST. For the hall of the figure 2 the first angle α1 is 33 ° and the second angle α2 is 54 °. None of these two angles meet the recommendations of the CST.

La CST définit également des critères pour les distances D1 et D2. Pour la distance D1 du premier rang 6 à l'écran 2, il est recommandé de se situer au moins à une valeur de 0,6 x L (L étant la plus grande largeur de l'image), et au moins à une valeur de 0,8 x L pour apporter un meilleur confort aux spectateurs du premier rang. Pour la distance D2 du dernier rang 7 à l'écran, il est recommandé de se situer au plus à une valeur de 2,9 x L, et au plus à une valeur de 2,2 x L pour un meilleur confort des spectateurs du dernier rang. On constate que pour les deux salles des figures 1 et 2, la distance D1 de 0,4 x L est bien en dessous des préconisations.The CST also defines criteria for distances D1 and D2. For distance D1 from first row 6 to screen 2, it is recommended to be at least 0.6 x L (where L is the largest width of the image), and at least one 0.8 x L to bring comfort to first-class spectators. For distance D2 from the last row 7 on the screen, it is recommended to be at the plus at a value of 2.9 x L, and at most at a value of 2.2 x L for a better comfort of the spectators of the last row. It can be seen that for the two halls figures 1 and 2 , the distance D1 of 0.4 x L is well below the recommendations.

En ce qui concerne les spectateurs du dernier rang 7, si leur distance à l'écran 2 respecte bien les préconisations de la CST, leur hauteur d'assise H3 est soumise à deux contraintes. En premier lieu, la cabine de projection 4 est nécessairement située au-dessus du dernier rang 7, et à une hauteur (2 mètres selon la norme) par rapport au dernier rang 7 qui autorise à un spectateur de ce dernier rang 7 de se lever sans se trouver dans le faisceau de projection de l'image. Le faisceau de projection est défini géométriquement par le cône de lumière partant de l'objectif du projecteur dont la limite basse se situe entre celui-ci et le bas de l'écran et la limite haute entre celui-ci et le haut de l'écran. Il en résulte un positionnement de la cabine de projection 4 à une altimétrie supérieure à la demi-hauteur H/2 de l'écran, ce qui engendre une distorsion verticale de l'image. Cette distorsion verticale fait également l'objet de recommandations de la CST et doit rester inférieure à 5°, et de préférence inférieure à 3° pour assurer une bonne qualité de l'image projetée.Regarding the last rank 7 spectators, if their distance to the screen 2 respects the recommendations of the CST, their seat height H3 is subject to two constraints. First, the projection booth 4 is necessarily located above the last rank 7, and at a height (2 meters according to the norm) compared to the last rank 7 which allows a spectator of the latter rank 7 to get up without being in the projection beam of the image. The projection beam is defined geometrically by the cone of light from the objective of the projector whose lower limit is between it and the bottom of the screen and the upper limit between it and the top of the screen. screen. This results in a positioning of the projection booth 4 at an altimetry greater than the half height H / 2 of the screen, which causes a vertical distortion of the image. This vertical distortion is also the subject of CST recommendations and must remain less than 5 °, and preferably less than 3 ° to ensure good quality of the projected image.

En outre, la hauteur d'assise H3 est également soumise à la valeur de l'angle α de la pente de gradinage qui doit répondre aux normes relatives à la sécurité incendie des Établissements Recevant du Public et à l'accessibilité des Personnes à Mobilité Réduite. Selon ces normes, la pente maximale autorisée d'un escalier est de 30°. Dans les salles de cinéma, les escaliers d'accès comportent des paliers pour accéder aux rangs de fauteuils, ce qui réduit la pente maximale autorisée du gradinage à environ 24 degrés. Il n'est donc pas possible, dans les salles actuelles, de prévoir une pente de gradinage continu supérieure à 24 degrés.In addition, the seat height H3 is also subject to the value of the angle α of the gradation slope which must meet the standards for fire safety of establishments receiving public and accessibility of persons with reduced mobility . According to these standards, the maximum permitted slope of a staircase is 30 °. In the movie theaters, the access stairways have landings to access the rows of chairs, reducing the maximum allowable slope of the grading to about 24 degrees. It is therefore not possible, in current rooms, to provide a continuous gradation slope greater than 24 degrees.

On constate ainsi que dans les deux salles des figures 1 et 2, si l'écran 2, et l'image projetée, présente des dimensions importantes, il existe une réelle hétérogénéité de qualité de visionnage entre les spectateurs du premier rang et ceux des rangs supérieurs. Du fait des différentes normes et recommandations, il n'est actuellement pas possible dans ces salles, de reculer le premier rang 6 par rapport à l'écran sans diminuer le nombre de rangs et donc de fauteuils et/ou détériorer l'immersion des spectateurs des derniers rangs.It can thus be seen that in the two halls figures 1 and 2 if the screen 2, and the projected image, has significant dimensions, there is a real heterogeneity of viewing quality between the first-rank and the higher-ranking spectators. Because of the different standards and recommendations, it is not currently possible in these rooms, to move back first 6 compared to on the screen without reducing the number of rows and therefore chairs and / or deteriorate the immersion of the last row of spectators.

L'invention vise une salle de projection cinématographique respectant la norme AFNOR NF-S 27001 établie suivant les Recommandations de la Commission Supérieure Technique de l'Image et du Son CST-RT-035 et permettant à l'ensemble des spectateurs, du premier au dernier rang, d'être immergés de façon accrue par rapport aux salles traditionnelles actuelles dans l'image projetée sans avoir à opérer un renversement de tête excessif.The invention relates to a cinematographic projection room complying with the AFNOR NF-S 27001 standard established according to the Recommendations of the Technical Superior Commission for Image and Sound CST-RT-035 and allowing all the spectators, from the first to the next. last row, to be immersed in a greater way compared to the current traditional rooms in the projected image without having to make an excessive reversal of head.

L'invention vise en outre une salle de projection cinématographique pour laquelle la distorsion géométrique verticale des images est quasiment nulle.The invention further provides a cinematographic projection room for which the vertical geometric image distortion is almost zero.

L'invention vise également une salle de projection cinématographique qui confère aux spectateurs une double sensation d'intimité et de convivialité.The invention also relates to a cinematographic projection room that gives spectators a double sensation of intimacy and conviviality.

L'invention vise enfin une salle de projection cinématographique permettant d'offrir des prestations personnalisées.
À cet effet, la salle de projection cinématographique de l'invention est essentiellement caractérisée en ce que la zone d'implantation des fauteuils comporte une pluralité de plateformes suspendues formant un gradinage discontinu le long d'au moins une partie de la hauteur de l'écran et comportant chacune au moins un rang de fauteuils, et en ce que l'angle α définissant la pente de la zone d'implantation de fauteuil est supérieur à 24°.
La salle de projection cinématographique de l'invention peut également comporter les caractéristiques optionnelles suivantes considérées isolément ou selon toutes les combinaisons techniques possibles :

  • l'angle α définissant la pente de la zone d'implantation de fauteuils est supérieur à 30°, de préférence supérieur à 40°.
  • le premier rang de fauteuils de la ou des plateforme(s) la ou les plus basse(s) est situé à la première distance D1, D1a la plus proche de l'écran qui répond au critère suivant : D1 ≥ 0,6 x L où L est la largeur de la plus grande image projetée sur l'écran.
  • le dernier rang de la ou des plateforme(s) la ou les plus basse(s) est situé à la seconde distance D2 la plus éloignée de l'écran qui répond, avec la hauteur d'assise H3 de la zone d'implantation de fauteuils ainsi formée, aux critères suivants :
    • ∘ D2 < 1,5 × L, et
    • ∘ H3 > 0,6 × H
      • où L est la largeur de la plus grande image projetée sur l'écran, et
      • où H est la hauteur de la plus grand image projetée sur l'écran.
  • la hauteur d'assise H3 et la seconde distance D2 répondent aux critères suivants :
    • ∘ 0,9 × H < H3 ≤ H
    • ∘ D2 < 1,2 × L
  • le premier rang de la ou des plateforme(s) la ou les plus basse(s) considéré au niveau de l'oeil du spectateur et le dernier rang de la ou des plateforme(s) la ou les plus haute(s) considéré au niveau de l'oeil du spectateur sont situés en regard de l'écran y compris de ses bords inférieurs ou supérieurs.
  • le rang médian de la zone d'implantation des fauteuils situé à la hauteur H3 / 2 est en regard du centre O de l'écran.
  • la cabine de projection est située en regard du point central de l'écran, et aucune plateforme ne se trouve en regard du point central de l'écran.
  • le bord avant le plus proche de l'écran de chaque plateforme occupée par des fauteuils, excepté la ou les plateformes les plus basses, est à une distance de l'écran qui est supérieure à la distance du bord avant le plus proche de l'écran des plateformes inférieures.
  • la distance du bord avant de chaque plateforme munie de fauteuils, excepté la ou les plateformes les plus basses, est telle que ledit bord avant n'est pas situé dans l'axe de vision partant de l'oeil du ou des spectateurs du dernier rang de la plateforme située juste en dessous et visant le bord supérieur de l'écran.
  • les plateformes sont agencées en quinconce le long de la paroi de fond.
  • chaque plateforme présente un bord avant circulaire et en ce que le nombre de rangs de chaque plateforme est compris entre 2 et 4.
  • la paroi de fond est en arc de cercle inverse à l'ergonomie circulaire concave de l'écran.
The invention finally aims a cinematographic projection room to offer personalized services.
For this purpose, the cinematographic projection room of the invention is essentially characterized in that the seating area of the chairs comprises a plurality of suspended platforms forming a discontinuous gradation along at least a part of the height of the screen and each having at least one row of chairs, and in that the angle α defining the slope of the chair installation area is greater than 24 °.
The cinematographic projection room of the invention may also include the following optional features considered in isolation or in any possible technical combination:
  • the angle α defining the slope of the seating area of chairs is greater than 30 °, preferably greater than 40 °.
  • the first row of seats of the platform (s) or the lowest (s) is located at the first distance D1, D1a closest to the screen that meets the following criterion: D1 ≥ 0.6 x L where L is the width of the largest image projected on the screen.
  • the last row of the platform (s) or the lowest (s) is located at the second distance D2 farthest from the screen that responds, with the seat height H3 of the implantation area of armchairs thus formed, with the following criteria:
    • ∘ D2 <1.5 × L, and
    • ∘ H3> 0.6 × H
      • where L is the width of the largest image projected on the screen, and
      • where H is the height of the largest image projected on the screen.
  • the seat height H3 and the second distance D2 meet the following criteria:
    • ∘ 0.9 × H <H3 ≤ H
    • ∘ D2 <1.2 × L
  • the first row of the lowest platform (s) considered at the viewer's eye and the last row of the highest platform (s) considered eye level of the viewer are located next to the screen including its lower or upper edges.
  • the median row of the seating area located at height H3 / 2 is next to center O of the screen.
  • the projection booth is located opposite the central point of the screen, and no platform is located opposite the central point of the screen.
  • the front edge closest to the screen of each platform occupied by armchairs, except for the lowest platform (s), is at a distance from the screen that is greater than the distance from the nearest forward edge of the lower platforms screen.
  • the distance from the front edge of each platform provided with armchairs, except for the lowest platform or platforms, is such that the said front edge is not situated in the axis of vision starting from the eye of the last row spectator (s) platform just below and aimed at the top edge of the screen.
  • the platforms are staggered along the bottom wall.
  • each platform has a circular front edge and the number of rows of each platform is between 2 and 4.
  • the bottom wall is in a reverse arc to the concave circular ergonomics of the screen.

D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est donnée ci-dessous, à titre indicatif et nullement limitatif, en référence aux figures annexées parmi lesquelles :

  • la figure 1 déjà décrite est une représentation en coupe de la salle de projection IMAX - Pathé Disney Village,
  • la figure 2 déjà décrite est une représentation en coupe de la salle de projection IMAX - Pathé - La Valette du Var,
  • la figure 3 est une représentation schématique en coupe longitudinale d'une salle de l'invention selon une première variante selon le plan de coupe vertical III-III de la figure 5 décalé par rapport à l'axe de projection XX',
  • la figure 4 est une représentation schématique en coupe longitudinale dans le plan de l'axe de projection XX' de la salle de l'invention selon une première variante (plan de coupe vertical IV-IV de la figure 5),
  • la figure 5 est une vue en plan du haut de la salle de l'invention selon la première variante,
  • la figure 6 est une représentation schématique de face des plateformes suspendues de la salle de l'invention de la première variante réparties en quinconce contre la paroi de fond,
  • la figure 7 est une vue en plan d'un étage de la salle de l'invention de la première variante desservant une série de plateformes alternativement supérieures et inférieures à partir d'un palier commun,
  • la figure 8 est une représentation schématique en perspective des plateformes suspendues de la salle de projection de l'invention de la première variante adossées à la paroi de fond en arc de cercle,
  • la figure 9 est une représentation schématique en coupe longitudinale d'une salle de l'invention selon une seconde variante selon le plan de coupe vertical IX-IX de la figure 10 décalé par rapport à l'axe de projection XX', et
  • la figure 10 est une vue en plan des quatre plateformes suspendues de la salle de l'invention de la seconde variante.
Other features and advantages of the invention will emerge clearly from the description which is given below, by way of indication and in no way limitative, with reference to the appended figures among which:
  • the figure 1 already described is a sectional representation of the IMAX projection room - Pathé Disney Village,
  • the figure 2 already described is a sectional representation of the IMAX - Pathé - La Valette du Var projection room,
  • the figure 3 is a schematic representation in longitudinal section of a room of the invention according to a first variant according to the vertical sectional plane III-III of the figure 5 offset with respect to the axis of projection XX ',
  • the figure 4 is a schematic representation in longitudinal section in the plane of the projection axis XX 'of the room of the invention according to a first variant (vertical section plane IV-IV of the figure 5 )
  • the figure 5 is a top plan view of the room of the invention according to the first variant,
  • the figure 6 is a schematic front view of the suspended platforms of the room of the invention of the first variant distributed in staggered rows against the bottom wall,
  • the figure 7 is a plan view of a floor of the invention room of the first variant serving a series of alternately upper and lower platforms from a common bearing,
  • the figure 8 is a schematic representation in perspective of the suspended platforms of the projection room of the invention of the first variant backed to the arcuate bottom wall,
  • the figure 9 is a schematic representation in longitudinal section of a room of the invention according to a second variant according to the vertical section plane IX-IX of the figure 10 offset from the axis of projection XX ', and
  • the figure 10 is a plan view of the four suspended platforms of the room of the invention of the second variant.

La salle de projection cinématographique de l'invention prévoit une zone d'implantation des fauteuils de configuration inédite. Il s'agit de plateformes suspendues solidaires de la paroi de fond. Cette configuration de la zone d'implantation des fauteuils permet d'éloigner le ou les premiers rangs de l'écran et de rapprocher le ou les derniers rangs de l'écran (ou autrement dit de réduire la profondeur d'assise) puisque la norme relative à la pente de gradinage ne s'applique pas à ce gradinage discontinu réparti en plateformes suspendues. Au sein de chaque plateforme, la pente de gradinage respecte les normes en vigueur.The cinematographic projection room of the invention provides an area of implantation armchairs unpublished configuration. These are suspended platforms integral with the bottom wall. This configuration of the seating area of the chairs allows to move the first row or rows of the screen and to bring the last row or rows of the screen (or in other words to reduce the seat depth) since the standard relative to the gradation slope does not apply to this discontinuous gradation distributed in suspended platforms. Within each platform, the gradation slope respects the standards in force.

En outre, les plateformes peuvent être réparties sur toute ou majeure partie de la hauteur de l'image projetée ce qui permet d'augmenter le nombre de fauteuils et de répartir les spectateurs en regard de toute la surface de l'image.In addition, the platforms can be spread over all or most of the height of the projected image which allows to increase the number of seats and distribute the spectators in relation to the entire surface of the image.

Par ailleurs, la cabine de projection peut être positionnée exactement dans l'axe géométrique du centre de l'écran et de l'image.Furthermore, the projection booth can be positioned exactly in the geometric axis of the center of the screen and the image.

Ces agencements permettent d'assurer le meilleur compromis de mise en situation des spectateurs au regard de l'écran de projection.These arrangements make it possible to ensure the best compromise of situation of the spectators with regard to the projection screen.

Comme déjà précédemment indiqué, certaines recommandations de la CST se réfèrent aux dimensions (largeur L, hauteur H) de la plus grande image projetée. Pour conférer aux caractéristiques de l'invention un caractère concret, on considère dans la suite de la description que les dimensions L,H de la plus grande image projetée correspondent aux dimensions L,H de l'écran. On admet bien entendu que l'écran en question présente des dimensions correspondant au format de l'image projetée. Si tel n'était pas le cas, ce sont les dimensions L,H de la plus grande image projetée qui doivent être considérées.As already mentioned, some CST recommendations refer to the dimensions (width L, height H) of the largest projected image. To give the characteristics of the invention a concrete character, it is considered in the following description that the dimensions L, H of the largest projected image correspond to the dimensions L, H of the screen. It is admitted, of course, that the screen in question has dimensions corresponding to the format of the projected image. If this were not the case, it is the L, H dimensions of the largest projected image that must be considered.

En référence à la figure 3, le volume de la salle de l'invention 10 est défini par un plafond 11, un sol 12, une paroi avant 13 devant laquelle est implantée un écran 14, et une paroi de fond 15. L'écran 14 présente une ergonomie circulaire concave déjà connue dans certaines salles actuelles. On considère dans cet exemple que la largeur L de l'écran est de 29 mètres et que sa hauteur H est de 15,30 mètres, étant entendu que le rapport L/H est le plus souvent défini par 1,66 < L/H < 2,39.With reference to the figure 3 , the volume of the room of the invention 10 is defined by a ceiling 11, a floor 12, a front wall 13 in front of which is implanted a screen 14, and a bottom wall 15. The screen 14 has a concave circular ergonomics already known in some current rooms. It is considered in this example that the width L of the screen is 29 meters and that its height H is 15.30 meters, it being understood that the ratio L / H is most often defined by 1.66 <L / H <2.39.

En référence aux figures 3 et 4, la zone d'implantation des fauteuils 16 comporte une pluralité de plateformes suspendues 17 solidaires de la paroi de fond 15. On entend par « suspendues », le fait que les plateformes sont maintenues en place uniquement par leur ancrage avec et dans la paroi de fond 15 et qu'il n'est prévu aucune colonne ou poteau de soutien qui viendrait nuire à la visibilité des spectateurs des plateformes inférieures. Les plateformes 17 sont réparties en plateformes les plus basses 17a, en plateformes intermédiaires 17b et en plateformes les plus hautes 17c, le long de toute la hauteur H de l'écran 14. Les plateformes les plus basses 17a sont les plus proches de l'écran 14 et les plateformes les hautes 17c sont les plus éloignées, étant entendu que chaque plateforme 17, outre les plateformes les plus basses, est située plus loin de l'écran que les plateformes inférieures (excepté pour la plateforme formant support de la cabine de projection, comme il sera vu plus loin). Il en résulte, comme illustré sur la figure 3, que le bord avant 18 le plus proche de l'écran 14 de chaque plateforme 17 est situé à une distance Dsup de l'écran 14 qui est supérieure à la distance Dinf du bord avant 18 le plus proche de l'écran 14 des plateformes inférieures.With reference to figures 3 and 4 , the seating area of the chairs 16 comprises a plurality of suspended platforms 17 integral with the bottom wall 15. The term "suspended", the fact that the platforms are held in place only by their anchoring with and in the wall of background 15 and that there is no column or support pole that would harm the visibility of the spectators of the lower platforms. The platforms 17 are distributed in the lower platforms 17a, intermediate platforms 17b and the highest platforms 17c, along the entire height H of the screen 14. The lowest platforms 17a are closest to the screen 14 and the high platforms 17c are furthest apart, it being understood that each platform 17, in addition to the lower platforms, is situated farther from the screen than the lower platforms (except for the platform forming the support of the cabin of projection, as will be seen later). As a result, as illustrated on figure 3 , that the front edge 18 closest to the screen 14 of each platform 17 is located at a distance Dsup from the screen 14 which is greater than the distance Dinf from the front edge 18 closest to the screen 14 of the platforms lower.

En référence aux figures 3, 4 et 5, il est à noter qu'au regard de l'ergonomie circulaire concave de l'écran 14 et de la configuration en arc de cercle inverse de la zone d'implantation 16, la distance D1,D1a (figure 5) des premiers rangs 20 diffère selon la position latérale de la plateforme la plus basse 17a. Il est à considérer que toutes les distances D1,D1a, y compris la plus petite, doivent répondre aux critères qui sont définis plus loin. La distance D2 des derniers rangs à l'écran 14 est identique pour les figures 3,4 et 5 puisque cette distance D2 est prise dans un même plan de coupe. Dans l'exemple illustré, trois rangs de fauteuils sont prévus par plateforme 17. Pour assurer à tous les spectateurs, y compris ceux des derniers rangs, une visibilité totale de l'image projetée, le bord avant 18 le plus proche de l'écran 14 de chaque plateforme 17, outre pour les plateformes les plus basses, est situé à une distance Dsup de l'écran qui ne positionne pas ce bord avant 18 dans le cône de vision Y partant de l'oeil du spectateur situé au dernier rang de la plateforme située immédiatement dessous et visant le bord supérieur 19 de l'écran 14.With reference to figures 3 , 4 and 5 , it should be noted that with regard to the concave circular ergonomics of the screen 14 and the inverse arc configuration of the implantation zone 16, the distance D1, D1a ( figure 5 ) of the first ranks 20 differs according to the lateral position of the lowest platform 17a. It is to be considered that all distances D1, D1a, including the smallest, must meet the criteria defined below. The distance D2 of the last ranks on the screen 14 is identical for the figures 3 , 4 and 5 since this distance D2 is taken in the same plane of section. In the illustrated example, three rows of chairs are provided by platform 17. To ensure all viewers, including those in the last rows, a total visibility of the projected image, the front edge 18 closest to the screen 14 of each platform 17, in addition to the lower platforms, is located at a distance Dsup from the screen which does not position this front edge 18 in the cone of vision Y starting from the eye of the spectator located at the last rank of the platform immediately below and aimed at the upper edge 19 of the screen 14.

Cette répartition des spectateurs dans des plateformes suspendues 17 permet de s'affranchir des normes relatives à la pente de gradinage appliquée pour des rangs de fauteuils agencés de façon continus et desservis par un escalier ou une allée elle-même continue. Dans l'exemple illustré, l'angle α définissant une pente projetée de gradinage depuis le premier rang 20 des plateformes les plus basses 17a jusqu'au dernier rang 21 des plateformes les plus hautes 17c est de 50 degrés. Plus précisément, l'angle α est considéré comme étant l'angle formé entre le plan P passant par le premier rang 20 et le dernier rang 21 de la zone d'implantation 16 avec l'axe XX'1 qui est parallèle à l'axe de projection XX' (selon les plans de coupe des figures 3 et 4) et perpendiculaire à l'écran 14. L'angle α3 définissant la pente de gradinage au sein d'une plateforme 17 est quant à lui inférieur à 24 degrés.This distribution of spectators in suspended platforms 17 makes it possible to dispense with the norms relating to the gradation slope applied for rows of chairs arranged continuously and served by a staircase or a continuous walkway itself. In the illustrated example, the angle α defining a projected graduation slope from the first row 20 of the lowest platforms 17a to the last row 21 of the highest platforms 17c is 50 degrees. More precisely, the angle α is considered to be the angle formed between the plane P passing through the first row 20 and the last row 21 of the implantation zone 16 with the axis XX'1 which is parallel to the projection axis XX '(according to the cutting planes of the figures 3 and 4 ) and perpendicular to the screen 14. The angle α3 defining the slope slope within a platform 17 is in turn less than 24 degrees.

Cette augmentation de la pente générale de gradinage permet de répartir les spectateurs sur une grande partie voire toute la hauteur H de l'écran (de la plus grande image projetée) et permet également de faire reculer les premiers rangs 20 de l'écran 14. Sur cet exemple et en référence à la figure 3, la première distance D1a du premier rang 20 à l'écran est d'environ 17,5 mètres soit environ 0,6 x L, respectant ainsi les recommandations de la CST. Ainsi, les spectateurs situés au premier rang 20 de la plateforme la plus basse 17a n'ont pas à opérer à un basculement important de la tête pour voir l'intégralité de l'image projetée. L'angle α1 précédemment défini et visant la mi-hauteur H/2 de la plus grande image projetée est compris entre 20 et 24 degrés, et l'angle α2 visant le bord supérieur 19 de l'image est compris entre 37° et 41°, ces deux valeurs étant substantiellement inférieures aux recommandations de la CST, illustrant par la même le confort de visualisation de ces premiers rangs 20 comparé aux salles actuelles. La distance D1 (figures 4 et 5) du premier rang 20 de la plateforme la plus basse 17a située dans l'axe de projection XX' à l'écran est supérieure à la distance D1a représentée sur la figure 3, de sorte que cette distance D1 est nécessairement supérieure à 17,5 mètres, respectant également les recommandations de la CST.This increase in the general gradation slope makes it possible to distribute the spectators over a large part or even the entire height H of the screen (of the largest projected image) and also makes it possible to roll back the first rows 20 of the screen 14. In this example and with reference to figure 3 , the first distance D1a of the first row 20 to the screen is about 17.5 meters or about 0.6 x L, thus complying with the recommendations of the CST. Thus, the spectators located in the first row 20 of the lowest platform 17a do not have to make a large tilting of the head to see the entirety of the projected image. The angle α1 previously defined and aimed at the mid-height H / 2 of the largest projected image is between 20 and 24 degrees, and the angle α2 for the upper edge 19 of the image is between 37 ° and 41 °. °, these two values being substantially lower than the recommendations of the CST, illustrating by the same visual comfort of these first ranks 20 compared to current rooms. The distance D1 ( figures 4 and 5 ) of the first row 20 of the lowest platform 17a located in the projection axis XX 'on the screen is greater than the distance D1a shown in FIG. figure 3 , so this distance D1 is necessarily greater than 17.5 meters, also respecting the recommendations of the CST.

Le confort visuel est également amélioré pour le dernier rang 21 de la plateforme la plus haute 17c. En effet, la configuration de la zone d'implantation en plateformes suspendues permet d'avancer les derniers rangs par rapport à l'écran 14. Dans l'exemple illustré, la deuxième distance D2 du dernier rang 21 à l'écran 14 est d'environ 29,3 mètres soit quasiment 1 x L, ce qui est bien inférieur aux préconisations de la CST mais également inférieure à cette distance D2 des salles de l'art antérieur illustrées sur les figures 1 et 2. Naturellement, l'augmentation de la première distance D1,D1a et la diminution de la deuxième distance D2 engendre une diminution de la profondeur d'assise D3,D3a qui est d'environ 11,80 mètres (pour la distance D3a représentée sur la figure 3) contre respectivement 22,8 mètres pour la salle de la figure 1 et 19,4 mètres pour la salle de la figure 2.Visual comfort is also improved for the last row 21 of the highest platform 17c. Indeed, the configuration of the implantation zone in suspended platforms makes it possible to advance the last rows with respect to the screen 14. In the example shown, the second distance D2 of the last row 21 on the screen 14 is approximately 29.3 meters is almost 1 x L, which is well below the recommendations of the CST but also below this distance D2 of the rooms of the prior art illustrated on the figures 1 and 2 . Naturally, the increase in the first distance D1, D1a and the decrease in the second distance D2 causes a decrease in the seat depth D3, D3a which is approximately 11.80 meters (for the distance D3a shown in FIG. figure 3 ) against respectively 22.8 meters for the hall of the figure 1 and 19.4 meters for the hall of the figure 2 .

La diminution de la profondeur d'assise résultant de l'augmentation de l'angle α de la zone d'implantation des fauteuils 16 permet ainsi de faire reculer les premiers rangs de l'écran et avancer les derniers rangs (ou autrement dit assurer une proximité accrue de l'ensemble des spectateurs à l'image par rapport à une salle de conception traditionnelle de volume et de jauge comparable) en augmentant le confort visuel et l'immersion dans l'image de tous les spectateurs.The decrease in the seat depth resulting from the increase of the angle α of the seating area of the chairs 16 thus makes it possible to roll back the first rows of the screen and advance the last rows (or in other words to ensure an increased proximity of all the spectators to the image compared to a traditional design room of comparable volume and gauge) by increasing the visual comfort and immersion in the image of all the spectators.

Une autre caractéristique illustre la nouvelle configuration de la zone d'implantation 16 au regard de l'écran. Il s'agit de la distance Dmoy entre le rang médian 24 de la zone d'implantation 16 et l'écran 14. Pour la première variante de l'invention de la figure 3, cette distance Dmoy est de 0,8 x L tandis que pour la salle de la figure 1, la distance Dmoy est de 1,2 x L et pour la salle de la figure 2, cette distance Dmoy est de 1 x L. Cette distance Dmoy est sensiblement supérieure prise dans l'axe de projection XX' mais reste substantiellement inférieure à celles des salles des figures 1 et 2.Another characteristic illustrates the new configuration of the implantation zone 16 with regard to the screen. This is the distance Dmoy between the median row 24 of the implantation zone 16 and the screen 14. For the first variant of the invention of the figure 3 , this distance Dmoy is 0.8 x L while for the room of the figure 1 , the distance Dmoy is 1.2 x L and for the room of the figure 2 , this distance Dmoy is 1 x L. This distance Dmoy is substantially greater taken in the axis of projection XX 'but remains substantially lower than those of the rooms of figures 1 and 2 .

En ce qui concerne la hauteur d'assise H3, comme visible sur la figure 3, les plateformes sont réparties sur toute la hauteur H de l'écran 14 (ou de la plus grande image projetée), ou autrement dit, dans cet exemple, H3 = H. Cette disposition est rendue possible par l'angle α élevé de la zone d'implantation des fauteuils 16 et ainsi la diminution de la profondeur d'assise D3a, mais également par la possibilité d'implanter la cabine de projection 22 en regard du centre O de l'écran 14 entre les plateformes 17. Contrairement à une salle actuelle, la hauteur du dernier rang n'est plus contrainte par l'implantation de la cabine de projection.With regard to the seat height H3, as visible on the figure 3 , the platforms are distributed over the entire height H of the screen 14 (or the largest projected image), or in other words, in this example, H3 = H. This arrangement is made possible by the high angle α of the seating area of the chairs 16 and thus the decrease of the seat depth D3a, but also by the possibility of implanting the projection booth 22 opposite the center O of the screen 14 between the platforms 17. Unlike a current room, the height of the last row is no longer constrained by the installation of the projection booth.

En outre, l'échappée visuelle entre les spectateurs permettant à chaque spectateur, quelque-soit sa position dans la salle, de la vision de la totalité de l'écran, est assurée dans la salle de l'invention. L'échappée visuelle se détermine de la façon suivante (en référence à la figure 4) : On matérialise la droite allant de l'oeil du spectateur du rang assis au rang n+1 jusqu'au bord inférieur 23 de l'écran 14. On matérialise la droite verticale passant par le regard du spectateur du rang n. On mesure la distance verticale entre le point d'intersection de ces deux droites et l'oeil du spectateur du rang n, on obtient alors l'échappée visuelle t, appelée également valeur de dégagement des têtes qui est supérieure ou égale à 12cm.In addition, the visual escape between the spectators allowing each spectator, whatever his position in the room, the vision of the entire screen, is provided in the room of the invention. The visual escape is determined in the following way (with reference to the figure 4 ): We materialize the line from the eye of the spectator of the rank seated at the rank n + 1 to the lower edge 23 of the screen 14. We materialize the vertical line passing through the viewer's view of the rank n. We measure the vertical distance between the point of intersection of these two lines and the viewer's eye of rank n, we then obtain the visual escapement t, also called head clearance value which is greater than or equal to 12cm.

On se réfère aux figures 4 et 6. La cabine de projection 22 est implantée en regard exact de l'axe géométrique du centre O de l'écran 14 (ou de la plus grande image projetée) sur une plateforme de projection dédiée 22a. Cette plateforme 22a présente un bord avant 22b en retrait par rapport à la plateforme située au-dessus d'elle, formant exception au principe d'agencement des plateformes défini précédemment. Ainsi, la distorsion géométrique verticale et la distorsion géométrique horizontale sont proches de 0° voire nulles, ce qui confère une qualité d'image projetée optimum. Il est donc possible de répartir les spectateurs sur toute la hauteur de l'image tout en bénéficiant d'une excellente qualité d'image.We refer to figures 4 and 6 . The projection booth 22 is located exactly opposite the geometric axis of the center O of the screen 14 (or the largest projected image) on a dedicated projection platform 22a. This platform 22a has a front edge 22b set back from the platform above it, forming an exception to the platform layout principle defined above. Thus, the vertical geometric distortion and the horizontal geometric distortion are close to 0 ° or even zero, which confers an optimum projected image quality. It is therefore possible to distribute the spectators over the entire height of the image while enjoying excellent image quality.

Alternativement, la répartition des spectateurs pourra être réalisée sur une partie seulement de la hauteur H, de préférence centré sur le centre O de l'écran 14, c'est-à-dire que le rang médian 24 de la zone d'implantation des fauteuils 16 situé à la hauteur H3 / 2 est situé en regard du centre O de l'écran ou de la plus grande image projetée.Alternatively, the distribution of the spectators can be performed on only part of the height H, preferably centered on the center O of the screen 14, that is to say that the median row 24 of the area of implantation of armchairs 16 located at height H3 / 2 is located opposite center O of the screen or the largest projected image.

Pour assurer le confort visuel des spectateurs des premier 20 et dernier 21 rangs, la ou les plateformes les plus basses 17a sont implantées de telle sorte que l'oeil du spectateur du premier rang 20 est en regard de l'écran ou, à la limite, en regard du bord inférieur 23 de l'écran. De façon similaire, l'oeil du spectateur du dernier rang 21 est en regard de l'écran ou, à la limite, en regard du bord supérieur 19 de l'écran. Autrement dit, toutes les plateformes 17 sont implantées en regard de l'écran, et donc de la plus grande image projetée, y compris en regard de ses bords supérieurs et inférieurs et de plus, toutes les plateformes 17 sont centrées en hauteur de part et d'autre du centre O de l'écran. La zone d'implantation des fauteuils 16 autorise ainsi l'immersion dans l'image de tous les spectateurs, des premier au dernier rang.To ensure the visual comfort of the spectators of the first 20 and last 21 ranks, the lowest platform or platforms 17a are located so that the eye of the spectator of the first rank 20 is next to the screen or, at the limit , opposite the lower edge 23 of the screen. Similarly, the viewer's eye of the last row 21 is next to the screen or, at the limit, facing the upper edge 19 of the screen. In other words, all the platforms 17 are implanted next to the screen, and therefore the largest projected image, including with respect to its upper and lower edges and moreover, all the platforms 17 are centered in height on the one hand and other of the center O of the screen. The seating area of the chairs 16 allows immersion in the image of all spectators, from first to last row.

En référence à la figure 6, les plateformes 17 sont implantées en quinconce sur la paroi de fond 15 sur toute la largeur L de l'écran 14 (non visible sur cette figure) et sur toute la hauteur H de l'écran 14. Le sensible décalage de la répartition en quinconce visible sur la figure 6 résulte de la configuration en arc de cercle de la zone d'implantation des fauteuils 16. Cette répartition en quinconce permet d'agencer uniformément les plateformes 17 tout en ménageant une hauteur suffisante entre deux plateformes supérieures et inférieures selon un axe vertical ZZ' pour éviter, comme explicité précédemment, que le bord avant 18 de la plateforme supérieure ne soit situé dans l'axe de vision Y partant de l'oeil du spectateur situé au dernier rang de la plateforme inférieure et visant le bord supérieur de l'écran.With reference to the figure 6 , the platforms 17 are staggered on the bottom wall 15 over the entire width L of the screen 14 (not visible in this figure) and over the entire height H of the screen 14. The significant offset of the distribution in quincunx visible on the figure 6 results from the arcuate configuration of the seating area of the chairs 16. This staggered distribution allows to uniformly arrange the platforms 17 while providing sufficient height between two upper and lower platforms along a vertical axis ZZ 'to avoid , as explained previously, that the front edge 18 of the upper platform is located in the line of vision Y from the eye of the viewer located in the last row of the lower platform and aimed at the upper edge of the screen.

Les plateformes sont implantées sur 4 étages A1,A2,A3,A4 qui correspondent, en référence aux figures 6 et 7 à quatre niveaux de paliers P1,P2,P3,P4 situés en dehors de la salle 10 derrière la paroi de fond 15. Chaque niveau de palier P1,P2,P3,P4 dessert des plateformes supérieures 17sup par un escalier montant 25, et des plateformes inférieures 17inf par des escaliers descendants 26. Le palier peut être aménagé pour faire patienter les spectateurs de ces plateformes 17sup,17inf. Cet aménagement peut être différent selon les paliers, de sorte que des prestations personnalisées peuvent être proposées selon la position des spectateurs dans la salle.The platforms are located on 4 floors A1, A2, A3, A4 which correspond, with reference to figures 6 and 7 at four levels of bearings P1, P2, P3, P4 situated outside the room 10 behind the bottom wall 15. Each level P1 level, P2, P3, P4 serves higher platforms 17sup a staircase rising 25, and lower platforms 17inf by descending stairs 26. The landing can be arranged to make the spectators wait on these platforms 17sup, 17inf. This arrangement may be different depending on the level, so that personalized services can be proposed according to the position of the spectators in the room.

Comme illustré sur les figures 7 et 8, selon cet exemple, chaque plateforme présente un bord 27 qui est circulaire et comporte trois rangs de fauteuils. Les spectateurs installés sur une plateforme 17 ont ainsi une sensation d'intimité tout en bénéficiant du caractère convivial d'une salle de projection actuelle.As illustrated on figures 7 and 8 according to this example, each platform has an edge 27 which is circular and comprises three rows of chairs. The spectators installed on a platform 17 thus have a feeling of intimacy while enjoying the convivial character of a current projection room.

La paroi de fond 15 est de préférence en arc de cercle inverse par rapport à l'ergonomie circulaire concave de l'écran 14 (non visible sur la figure 7), en permettant une meilleure convergence des spectateurs vers le centre de l'image.The bottom wall 15 is preferably in a reverse arc relative to the concave circular ergonomics of the screen 14 (not visible on the screen). figure 7 ), by allowing a better convergence of the spectators towards the center of the image.

On se réfère aux figures 9 et 10 pour décrire une variante de réalisation de l'invention dans laquelle la salle 100 présente les mêmes caractéristiques que celles décrites pour la salle de la première variante des figures 3 à 7. La seule différence réside dans le nombre et la forme des plateformes suspendues 170. Dans la seconde variante, la zone d'implantation des fauteuils 160 comporte quatre plateformes suspendues 170 s'étendant sur toute la hauteur H de l'écran 140 et sur toute la largeur L de l'écran 140. Comme pour la première variante, cette largeur L est croissante depuis l'écran 140 jusqu'à la paroi de fond 150 en raison de l'ergonomie circulaire concave de l'écran 140 et de la géométrie de la salle en résultant. Comme dans la première variante, chacune des plateformes 170 comporte 3 rangs de fauteuils qui présentent une discontinuité pour l'aménagement d'allées. La cabine de projection non visible sur ces figures est également implantée en regard du centre O de l'écran 140 dans le fond de la troisième plateforme suspendue 170. Sur cette plateforme, une zone 171 est dépourvue de fauteuils pour assurer la projection de l'image sur l'écran 140 depuis la cabine de projection.We refer to figures 9 and 10 to describe an alternative embodiment of the invention in which the room 100 has the same characteristics as those described for the room of the first variant of the Figures 3 to 7 . The only difference lies in the number and shape of the suspended platforms 170. In the second variant, the seating area of the chairs 160 comprises four suspended platforms 170 extending over the entire height H of the screen 140 and over the entire width L of the screen 140. As for the first variant, this width L is increasing from the screen 140 to the bottom wall 150 due to the concave circular ergonomics of the screen 140 and the geometry of the screen. the resulting room. As in the first variant, each of the platforms 170 has 3 rows of chairs which present a discontinuity for the arrangement aisles. The projection booth not visible in these figures is also located opposite the center O of the screen 140 in the bottom of the third suspended platform 170. On this platform, a zone 171 is devoid of armchairs to ensure the projection of the image on the screen 140 from the projection booth.

Restant dans le cadre de l'invention, les plateformes suspendues peuvent ainsi présenter des formes et un nombre spécifique, la discontinuité de la zone d'implantation des fauteuils permettant en tout état de cause à l'angle α de gradinage de présenter une valeur bien supérieure à 24 degrés en assurant l'immersion des spectateurs dans l'image.Remaining within the scope of the invention, the suspended platforms can thus have shapes and a specific number, the discontinuity of the seating area of the chairs allowing in any case at the angle of graduation α to present a value well greater than 24 degrees by immersing viewers in the image.

Claims (13)

Salle de projection cinématographique comportant un écran de projection qui est apte à projeter, selon un axe de projection (XX') perpendiculaire au dit écran (14, 140), une image définie par sa plus grande largeur (L) et sa plus grande hauteur (H), en face duquel écran (14,140) s'étend une paroi de fond (15,150) qui est située à une certaine distance (D) de l'écran (14,140) et au niveau de laquelle est implantée une cabine de projection (22), la dite salle (10,100) comportant une zone d'implantation des fauteuils (16,160) ou gradinage qui s'étend depuis un premier rang (20) situé à une première distance (D1,D1a) la plus proche de l'écran (14,140) jusqu'à un dernier rang (21) situé à une seconde distance (D2) la plus éloignée de l'écran (14,140) en définissant une hauteur d'assise (H3) entre le premier (20) et le dernier (21) rang, et une pente de la zone d'implantation des fauteuils (16,160) définie par l'angle (α) formé entre le plan (P) passant par le premier rang (20) et le dernier rang (21) du gradinage avec un axe (XX'1) perpendiculaire à l'écran (14), caractérisée en ce que la zone d'implantation des fauteuils (16,160) comporte une pluralité de plateformes suspendues (17 ; 17a,17b,17c ;170) formant un gradinage discontinu le long d'au moins une partie de la hauteur (H) de l'écran (14,140) et comportant chacune au moins un rang de fauteuils, et en ce que l'angle (α) définissant la pente de la zone d'implantation de fauteuil (16,160) est supérieur à 24°.Cinematographic projection room comprising a projection screen which is capable of projecting, according to a projection axis (XX ') perpendicular to said screen (14, 140), an image defined by its greatest width (L) and its greatest height (H), opposite which screen (14,140) extends a bottom wall (15,150) which is located at a distance (D) from the screen (14,140) and at which a projection booth ( 22), said room (10,100) having a seating area (16,160) or scaling extending from a first row (20) located at a first distance (D1, D1a) closest to the screen (14,140) to a last row (21) at a second distance (D2) farthest from the screen (14,140) by setting a seat height (H3) between the first (20) and the last (20). 21) rank, and a slope of the seating area of the chairs (16,160) defined by the angle (α) formed between the plane (P) passing through the first first rank (20) and the last row (21) of the gradation with an axis (XX'1) perpendicular to the screen (14), characterized in that the seating area of the chairs (16,160) comprises a plurality of platforms suspended (17; 17a, 17b, 17c, 170) forming a discontinuous gradation along at least a portion of the height (H) of the screen (14, 140) and each having at least one row of seats, and in that the angle (α) defining the slope of the armchair implantation area (16,160) is greater than 24 °. Salle de projection selon la revendication 1, caractérisée en ce que l'angle (α) définissant la pente de la zone d'implantation de fauteuils (16,160) est supérieur à 30°, de préférence supérieur à 40°.Projection room according to claim 1, characterized in that the angle (α) defining the slope of the seating area (16,160) is greater than 30 °, preferably greater than 40 °. Salle de projection selon l'une quelconque des revendications 1 et 2, caractérisée en ce que le premier rang de fauteuils (20) de la ou des plateforme(s) la ou les plus basse(s) (17a, 170) est situé à la première distance (D1,D1a) la plus proche de l'écran (14,140) qui répond au critère suivant : D1 ≥ 0,6 x L où L est la largeur de la plus grande image projetée sur l'écran (14,140).Projection room according to any one of claims 1 and 2, characterized in that the first row of chairs (20) of the platform (s) or the lowest (s) (17a, 170) is located the first distance (D1, D1a) closest to the screen (14,140) that meets the following criterion: D1 ≥ 0.6 x L where L is the width of the largest image projected on the screen (14,140). Salle de projection selon l'une quelconque des revendications précédentes, caractérisée en ce que le dernier rang (21) de la ou des plateforme(s) la ou les plus basse(s) (17c,170) est situé à la seconde distance (D2) la plus éloignée de l'écran (14,140) qui répond, avec la hauteur d'assise (H3) de la zone d'implantation de fauteuils ainsi formée (16,160), aux critère suivants : - D2 < 1,5 × L, et - H3 > 0,6 × H où L est la largeur de la plus grande image projetée sur l'écran -14,140), et où H est la hauteur de la plus grand image projetée sur l'écran (14,140). Projection room according to any one of the preceding claims, characterized in that the last row (21) of the platform (s) or the lowest (s) (17c, 170) is located at the second distance ( D2) the farthest from the screen (14,140) which responds, with the seat height (H3) of the seating area thus formed (16,160), to the following criteria: - D2 <1.5 × L, and - H3> 0.6 × H where L is the width of the largest image projected on the screen -14,140), and where H is the height of the largest image projected on the screen (14,140). Salle de projection cinématographique selon la revendication 4, caractérisée en ce que la hauteur d'assise (H3) et la seconde distance (D2) répondent aux critères suivants : 0,9 × H < H3 ≤ H D2 < 1,2 × L Cinematographic projection room according to claim 4, characterized in that the seat height (H3) and the second distance (D2) satisfy the following criteria: 0.9 × H <H3 ≤ H D2 <1.2 × L Salle de projection cinématographique selon l'une quelconque des revendications précédentes, caractérisée en ce que le premier rang (20) de la ou des plateforme(s) la ou les plus basse(s) (17c,170) considéré au niveau de l'oeil du spectateur, et le dernier rang (21) de la ou des plateforme(s) la ou les plus haute(s) (17c,170) considéré au niveau de l'oeil du spectateur sont situés en regard de l'écran (14,140), y compris de ses bords inférieur (23) ou supérieur (19).Cinematographic projection room according to any one of the preceding claims, characterized in that the first row (20) of the platform (s) or the lowest (s) (17c, 170) considered at the level of the viewer's eye, and the last row (21) of the at least one platform (s) (17c, 170) considered at the level of the viewer's eye are located opposite the screen ( 14, 140), including its lower (23) or upper (19) edges. Salle de projection cinématographique selon l'une quelconque des revendications précédentes, caractérisée en ce que le rang médian (24) de la zone d'implantation des fauteuils (16,160) situé à la hauteur H3 / 2 est en regard du centre O de l'écran (14,140).Cinematographic projection room according to any one of the preceding claims, characterized in that the median row (24) of the seating area (16,160) located at the height H3 / 2 is opposite the center O of the screen (14,140). Salle de projection selon l'une quelconque des revendications précédentes, caractérisée en ce que la cabine de projection (22,220) est située en regard du point central (O) de l'écran (14,140).Projection room according to any one of the preceding claims, characterized in that the projection booth (22,220) is located opposite the central point (O) of the screen (14,140). Salle de protection selon l'une quelconque des revendications précédentes, caractérisée en ce que le bord avant (18) le plus proche de l'écran (14,140) de chaque plateforme occupée par des fauteuils (17 ; 17b,17c ;170), excepté la ou les plateformes les plus basses (17a), est à une distance (Dsup) de l'écran (14,140) qui est supérieure à la distance (Dinf) du bord avant (18) le plus proche de l'écran (14,140) des plateformes inférieures (17 ;17b,170).En protection according to any one of the preceding claims, characterized in that the front edge (18) closest to the screen (14.140) of each platform occupied by chairs (17; 17b, 17c; 170), except the lowest platform or platforms (17a) is at a distance (Dsup) from the screen (14,140) which is greater than the distance (Dinf) from the leading edge (18) closest to the screen (14,140) lower platforms (17; 17b, 170). Salle de projection selon la revendication 9, caractérisée en ce que la distance (Dsup) du bord avant (18) de chaque plateforme munie de fauteuils (17 ;17b,170), excepté la ou les plateformes la ou les plus basse(s) (17a), est telle que ledit bord avant (18) n'est pas situé dans l'axe de vision (Y) partant de l'oeil du ou des spectateurs du dernier rang de la plateforme (17,17b,17a,170) située juste en dessous et visant le bord supérieur (19) de l'écran (14,140).Projection room according to claim 9, characterized in that the distance (Dsup) of the front edge (18) of each platform provided with armchairs (17; 17b, 170), except the platform or the lowest platform (s) (17a), is such that said front edge (18) is not located in the line of vision (Y) from the eye of the spectator (s) of the last row of the platform (17, 17b, 17a, 170 ) located just below and aimed at the upper edge (19) of the screen (14,140). Salle de projection selon l'une quelconque des revendications précédentes, caractérisée en ce que les plateformes (17 ;17a,17b,17c) sont agencées en quinconce sur la paroi de fond (15).Projection room according to any one of the preceding claims, characterized in that the platforms (17; 17a, 17b, 17c) are staggered on the bottom wall (15). Salle de projection selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque plateforme (17 ;17a,17b,17c) présente un bord avant (27) circulaire, et en ce que le nombre de rangs de chaque plateforme (17 ;17a,17b,17c) est compris entre 2 et 4.Projection room according to any one of the preceding claims, characterized in that each platform (17; 17a, 17b, 17c) has a circular front edge (27), and in that the number of rows of each platform (17; 17a, 17b, 17c) is between 2 and 4. Salle de projection selon l'une quelconque des revendications précédentes, caractérisée en ce que la paroi de fond (15,150) est en arc de cercle inverse à l'ergonomie circulaire concave de l'écran (14,140).Projection room according to any one of the preceding claims, characterized in that the bottom wall (15,150) is in a reverse arc to the concave circular ergonomics of the screen (14,140).
EP16306733.3A 2016-12-19 2016-12-19 Movie projection room suitable for large-screen projection Withdrawn EP3335775A1 (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
EP16306733.3A EP3335775A1 (en) 2016-12-19 2016-12-19 Movie projection room suitable for large-screen projection
PCT/EP2017/053432 WO2018114059A1 (en) 2016-12-19 2017-02-15 Cinema projection room suitable for large screen projection
JP2019554025A JP7023533B2 (en) 2016-12-19 2017-12-13 Auditorium
BR112019012583-3A BR112019012583B1 (en) 2016-12-19 2017-12-13 SHOW ROOM
PCT/FR2017/053556 WO2018115642A1 (en) 2016-12-19 2017-12-13 Auditorium
US16/470,851 US11008768B2 (en) 2016-12-19 2017-12-13 Auditorium
MX2019007214A MX2019007214A (en) 2016-12-19 2017-12-13 Auditorium.
HUE17822415A HUE052400T2 (en) 2016-12-19 2017-12-13 Movie projection room suitable for large-screen projection
CN201780086053.1A CN110325253B (en) 2016-12-19 2017-12-13 Theatre
EP17822415.0A EP3554663B8 (en) 2016-12-19 2017-12-13 Movie projection room suitable for large-screen projection
CA3047559A CA3047559A1 (en) 2016-12-19 2017-12-13 Auditorium
PT178224150T PT3554663T (en) 2016-12-19 2017-12-13 Auditorium
PL17822415T PL3554663T3 (en) 2016-12-19 2017-12-13 Movie projection room suitable for large-screen projection
KR1020197021032A KR102388556B1 (en) 2016-12-19 2017-12-13 concert hall
DK17822415.0T DK3554663T3 (en) 2016-12-19 2017-12-13 Spectator room
ES17822415T ES2840304T3 (en) 2016-12-19 2017-12-13 Entertainment room
SA519402144A SA519402144B1 (en) 2016-12-19 2019-06-18 Auditorium

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EP16306733.3A EP3335775A1 (en) 2016-12-19 2016-12-19 Movie projection room suitable for large-screen projection

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HU (1) HUE052400T2 (en)
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PL (1) PL3554663T3 (en)
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USD924432S1 (en) * 2019-02-27 2021-07-06 Pierre CHICAN Platform with seats for auditoriums

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ES2840304T3 (en) 2021-07-06
CN110325253B (en) 2021-03-09
PT3554663T (en) 2021-01-05
WO2018115642A1 (en) 2018-06-28
WO2018114059A1 (en) 2018-06-28
KR20190097213A (en) 2019-08-20
JP7023533B2 (en) 2022-02-22
US20190323248A1 (en) 2019-10-24
EP3554663B1 (en) 2020-10-14
MX2019007214A (en) 2019-11-21
HUE052400T2 (en) 2021-04-28
EP3554663B8 (en) 2021-01-06
US11008768B2 (en) 2021-05-18
SA519402144B1 (en) 2022-04-19
EP3554663A1 (en) 2019-10-23
KR102388556B1 (en) 2022-04-20
JP2020514597A (en) 2020-05-21
PL3554663T3 (en) 2021-06-14
CA3047559A1 (en) 2018-06-28
CN110325253A (en) 2019-10-11
DK3554663T3 (en) 2021-01-11
BR112019012583A2 (en) 2019-11-19

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