WO2001013172A1 - Ecran de projection et methodes de transport et de montage du meme - Google Patents

Ecran de projection et methodes de transport et de montage du meme Download PDF

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Publication number
WO2001013172A1
WO2001013172A1 PCT/EP1999/005881 EP9905881W WO0113172A1 WO 2001013172 A1 WO2001013172 A1 WO 2001013172A1 EP 9905881 W EP9905881 W EP 9905881W WO 0113172 A1 WO0113172 A1 WO 0113172A1
Authority
WO
WIPO (PCT)
Prior art keywords
screen
tube
turntable
rolled
frame members
Prior art date
Application number
PCT/EP1999/005881
Other languages
English (en)
Inventor
Laurent Meersseman
Original Assignee
Barco N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Barco N.V. filed Critical Barco N.V.
Priority to PCT/EP1999/005881 priority Critical patent/WO2001013172A1/fr
Publication of WO2001013172A1 publication Critical patent/WO2001013172A1/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Definitions

  • TECHNICAL BACKGROUND Lifelike simulation screens which are generally cylindrical or spherical in shape and have large focal lengths They may be used with a motion based matched display system such as those using a bank of PRODAS 1208 high-resolution CRT projectors supplied by Barco Projection Systems, Kuurne, Belgium.
  • a large size curved screen comprising a rolled semi-rigid screen, and a turntable for holding the rolled semi-rigid screen during transport
  • a method of transporting a large curved screen comprising the steps of rolling a semi-rigid screen onto a cylindrical tube, and fixing a restraining plate to one end of the tube, the fixing plate forming a turntable with the cylindrical tube
  • the screen is a uniform sheet of material without reinforcing battens permanently attached thereto
  • Glass-fiber is a suitable material for the screen
  • the holding frame is preferably made from components which themselves make up a transport casing for the rolled screen
  • the axis of the tube may be kept horizontal during transport and then erected vertically for unwinding of the screen
  • a second fixing plate may be applied to the other end of the tube/turntable and the screen is unwound from the tube when the axis of the tube is horizontal
  • Fig 3 is a schematic rear view representation of a curved screen in accordance with Fig 1
  • Fig 5 is a schematic view of a transport casing in accordance with the present invention
  • Figs 6 and 7 are exploded views of the casing according to Fig 5
  • Fig 8 is a schematic view of the installation of a large curved screen in accordance with an embodiment of the present invention
  • Fig 9 is a cross-section of a vertical frame bar which may be used with the present invention
  • Fig 1 is a top view of the erected screen 10
  • Fig 2 is a rear side view of the erected screen 10.
  • Fig 3 is a rear view of the erected screen 10
  • Fig 4 is a three dimensional rear view of the erected screen 10
  • the erected screen 10 comprises a cylindrical laminar, semi-rigid screen 2 supported by a curved (e g cylindrical) frame 4
  • the screen 2 may be made from a uniform sheet of glass-fiber reinforced plastic or similar
  • Frame 4 comprises horizontal curved frame bars 6 and vertical frame bars 8
  • Horizontal curved frame bars 6 are preferably made up of a plurality of curved (arcuate) bar sections 7 which are joined together in an overlapping manner, e g using bolts and nuts, on-site
  • the thermal expansion of the bars 6 preferably matches that of screen 2, for example bars 6 may be made of wood.
  • each bar section may be provided with flats 5a,
  • each horizontal bar 6 of the four rows A is indicated in Fig. 4,
  • Each group of three sections 7 may be formed so that two of the sections are may be top (e.g. Dl and D3) and one section (e.g. D2) is underneath and joins the upper two sections together.
  • the vertical bars 8 are preferably made of metal and preferably have a cross-section which allows easy fixing of the horizontal curved bars 6.
  • Each vertical bar 8 or several of the vertical bars 8 may be provided with an adjustable foot 9 (best shown in Figs. 2 and 3).
  • a plate 11 may be used to attach a horizontal curved bar 6 to a vertical bar 8.
  • These plates 1 1 are preferably made from metal.
  • the plate 11 may be fixed to each bar 6 at a junction point of the two upper sections 7 of a group of three.
  • the cross-section of the vertical bars 8 is preferably chosen to make the attachment of plates 11 to the vertical bars 8 as simple and strong as possible and also adjustable.
  • Plate 11 preferably is L-shaped in cross-section whereby the horizontal part of the "L" is used to support a horizontal curved bar 6 (note the plate 11 may be used with the L shape vertical or inverted).
  • Figs. 2 to 4 several horizontal bars 6 are arranged distributed over the length of the vertical bars 8. This results in a cylindrical screen holding frame 4 to which the semi-rigid laminar screen 2 may be attached, e.g. by any suitable attachment method which may include resin adhesive or cement, or flexible mechanical attachment systems such as supplied under the trade name VelcroTM.
  • the attachment method for the screen 2 is preferably removable to allow dismantling of the screen 10 at a later date if required.
  • the frame 4 shown in Figs. 1 to 4 is a cylinder with the axis of the cylinder vertical.
  • the present invention is not limited thereto, for instance the screen need not be cylindrical or the axis of the cylinder may be horizontal.
  • FIG. 5 shows a general view of the closed casing 20 It comprises side panels 22, top and bottom panels 24 and end panels 26 At least one of the end panels 26 has a hole in which a spindle 32 for a turntable may be journalled
  • Wheels and/or casters 28 may be attached to the bottom panels 24 for ease of movement of casing 20
  • the side, top and bottom and end panels 22, 24, 26 are fixed to longitudinal frame members 34 as shown schematically in Fig 6
  • These frame members 34 may be used as the vertical bars 8 in the installation of the screen 10 as described with respect to
  • Figs 1 to 4 there will be at least four frame members 34, one at the corners of the end panels 26, but additional members 34 may be provided within the casing if more vertical bars 8 are required
  • the frame members 34 may have a cross-section shown in Fig 9 which allows easy and removable fastening of the side, top and bottom panels 22, 24 using bolts with hammer-head ends which locate into and are trapped by the longitudinal recesses 35 of the frame members 34
  • a cylindrical tube 38 is provided within casing 20 onto which the semi-rigid screen 2 may be wound At least one end of the tube 38 is attached to a plate 36 in the middle of which and on the side remote from the tube 38 a spindle 32 is fixed This spindle 32 locates in a hole in an end plate 26 to form a turntable
  • the screen 2 should preferably be made from a sheet material which can be rolled up without forming wrinkles
  • the screen material should also maintains its dimensions even when rolled up, i e does not take on a significant permanent set when rolled Ideally,
  • the side panels 24 are removed from the casing 20 and used later to support the screen 2 as will be described below
  • FIG. 8 This figure shows the frame 4 already assembled with its horizontal curved bars 6 and the vertical bars 8 and L-shaped plates 1 1
  • the side panels 22 from casing 20 are placed on the floor These provide a raised surface on which the bottom edge of the screen 2 may slide
  • the adjustable feet 9 are adjusted so that the height of the lowest curved bar 6 is at the correct height so that when the screen 2 rests on the panels 22 it need only be fastened to frame 4 and not moved vertically again
  • the fixing to the frame 4 may be any suitable mechanical fixing method It has been found that a heavy duty hook-and-loop type mechanical fixing (as supplied under the tradename VelcroTM) is very suitable for quick and secure fixing As the amount of unsupported screen 2 between turntable 30 and frame 4 is small the danger of the screen buckling or twisting under its own weight is low The screen 2 is at all times supported by the turntable 30, one or more panels 22 and/or the frame 4 during the installation of the screen very large screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

L'invention concerne un écran de projection (10) et une méthode de transport et d'installation de l'écran. Cet écran est composé d'une feuille de matériau semi-rigide (2) qui peut être enroulée dans un tube (38) qui est un élément d'une tournette (30). Ce tube (38) est composé de panneaux (24, 22, 26) formant un boîtier (20) qui protège l'écran (2) au cours du transport. Ce boîtier (20) est décomposé une fois sur site et ses différentes parties peuvent alors servir à installer l'écran. L'écran monté (10) comporte un cadre cylindrique (4) auquel l'écran (2) est fixé.
PCT/EP1999/005881 1999-08-11 1999-08-11 Ecran de projection et methodes de transport et de montage du meme WO2001013172A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP1999/005881 WO2001013172A1 (fr) 1999-08-11 1999-08-11 Ecran de projection et methodes de transport et de montage du meme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1999/005881 WO2001013172A1 (fr) 1999-08-11 1999-08-11 Ecran de projection et methodes de transport et de montage du meme

Publications (1)

Publication Number Publication Date
WO2001013172A1 true WO2001013172A1 (fr) 2001-02-22

Family

ID=8167400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/005881 WO2001013172A1 (fr) 1999-08-11 1999-08-11 Ecran de projection et methodes de transport et de montage du meme

Country Status (1)

Country Link
WO (1) WO2001013172A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7545563B2 (en) 2006-01-13 2009-06-09 Shane Chen Lightweight compactible projection screen for trade show and other uses
WO2015039902A3 (fr) * 2013-09-23 2015-06-11 Barco Nv Écrans d'affichage continu permettant une installation rapide

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522832A (en) * 1975-06-24 1978-08-31 Rfd Systems Eng Ltd Gunnery training aids having screen assemblies
DE2740644A1 (de) * 1977-09-09 1979-03-15 Bosch Gmbh Robert Projektionswand fuer schiesskino
DE2949226A1 (de) * 1979-12-07 1981-06-11 Michael 4811 Oerlinghausen Wannert Transportable projektionswand
SU1513412A1 (ru) * 1988-01-05 1989-10-07 Завод N6 Школьного Приборостроения Сворачивающийс экран
US5296964A (en) * 1992-09-04 1994-03-22 Draper Shade & Screen Co., Inc. Replaceable fascia for projection screen case
US5353152A (en) * 1993-09-20 1994-10-04 Vutec Corporation Screen projection apparatus
US5437756A (en) * 1990-07-16 1995-08-01 United Technologies Corp. Method of making a composite sphere for a motion base simulator with a low center of gravity
JPH0862725A (ja) * 1994-08-18 1996-03-08 Toppan Printing Co Ltd 巻上式反射型映写スクリーン
US5724775A (en) * 1996-01-29 1998-03-10 Alternate Realities Corporation Multi-pieced, portable projection dome and method of assembling the same
JPH1080334A (ja) * 1997-09-11 1998-03-31 Sony Corp 映像システムの収納ラック

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522832A (en) * 1975-06-24 1978-08-31 Rfd Systems Eng Ltd Gunnery training aids having screen assemblies
DE2740644A1 (de) * 1977-09-09 1979-03-15 Bosch Gmbh Robert Projektionswand fuer schiesskino
DE2949226A1 (de) * 1979-12-07 1981-06-11 Michael 4811 Oerlinghausen Wannert Transportable projektionswand
SU1513412A1 (ru) * 1988-01-05 1989-10-07 Завод N6 Школьного Приборостроения Сворачивающийс экран
US5437756A (en) * 1990-07-16 1995-08-01 United Technologies Corp. Method of making a composite sphere for a motion base simulator with a low center of gravity
US5296964A (en) * 1992-09-04 1994-03-22 Draper Shade & Screen Co., Inc. Replaceable fascia for projection screen case
US5353152A (en) * 1993-09-20 1994-10-04 Vutec Corporation Screen projection apparatus
JPH0862725A (ja) * 1994-08-18 1996-03-08 Toppan Printing Co Ltd 巻上式反射型映写スクリーン
US5724775A (en) * 1996-01-29 1998-03-10 Alternate Realities Corporation Multi-pieced, portable projection dome and method of assembling the same
JPH1080334A (ja) * 1997-09-11 1998-03-31 Sony Corp 映像システムの収納ラック

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 199016, Derwent World Patents Index; Class P82, AN 1990-122572, XP002136659 *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 07 31 July 1996 (1996-07-31) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 08 30 June 1998 (1998-06-30) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7545563B2 (en) 2006-01-13 2009-06-09 Shane Chen Lightweight compactible projection screen for trade show and other uses
WO2015039902A3 (fr) * 2013-09-23 2015-06-11 Barco Nv Écrans d'affichage continu permettant une installation rapide
US9785045B2 (en) 2013-09-23 2017-10-10 Barco Nv Seamless projection screen for fast installation

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