WO2010069368A1 - Appareil de formation d'écran, moyen d'alimentation pour appareil de formation d'écran et procédé pour appareil de formation d'écran - Google Patents

Appareil de formation d'écran, moyen d'alimentation pour appareil de formation d'écran et procédé pour appareil de formation d'écran Download PDF

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Publication number
WO2010069368A1
WO2010069368A1 PCT/EP2008/067719 EP2008067719W WO2010069368A1 WO 2010069368 A1 WO2010069368 A1 WO 2010069368A1 EP 2008067719 W EP2008067719 W EP 2008067719W WO 2010069368 A1 WO2010069368 A1 WO 2010069368A1
Authority
WO
WIPO (PCT)
Prior art keywords
supply means
flow
fog
forming apparatus
screen forming
Prior art date
Application number
PCT/EP2008/067719
Other languages
English (en)
Inventor
Arttu Laitinen
Original Assignee
Fogscreen Inc.
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 Fogscreen Inc. filed Critical Fogscreen Inc.
Priority to PCT/EP2008/067719 priority Critical patent/WO2010069368A1/fr
Publication of WO2010069368A1 publication Critical patent/WO2010069368A1/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
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/608—Fluid screens

Definitions

  • a SCREEN FORMING APPARATUS A SUPPLY MEANS FOR A SCREEN FORMING APPARATUS AND A METHOD FOR A SCREEN FORMING APPARATUS
  • This invention relates to a screen forming apparatus being configured to produce a transfer flow and a fog flow to be transferred by said transfer flow, and comprising supply means for delivering at least the fog flow.
  • This invention also relates to a method and a supply means for such screen forming apparatus.
  • a screen forming apparatus refers to an apparatus forming substantially two-dimensional surface with such light reflection and/or light scattering properties that a moving or still image, or other performances or effects based on the use of light can be reflected on the surface by means of a projector, light effective device, laser device or the like.
  • Such an apparatus may be configured also to form a projection volume, where a substantially three-dimensional object can be illuminated.
  • Non-solid projection screens can be found from related art.
  • Such a non-solid projection screen is typically formed of fog.
  • the fog can be sprayed from nozzles wherein images, or the like, can be projected on the thereby generated planar fog surface.
  • the fog being generated may be supported with air flows that limit the fog flow between the air curtains as planar as possible.
  • Publication US 6,819,487 discloses a solution by means of which the projection screen will be planar, and the fog and transfer flows will stay laminar.
  • the screen forming apparatus is provided with a supply means for spreading the fog to the transfer flow.
  • supply means is in the form of tubes arranged in a matrix form, or a perforated sheet or a grating, the fog will condense onto walls of the supply means. This will be a drawback to such apparatuses that form the projection screen underneath the apparatus. This means that the condensed fog will eventually drip as water, and if floor is below the apparatus, the floor may become slippery. This will obviously have impact on the safety, but also on the aesthetic nature of the show room.
  • Some of the apparatuses may comprise an additional suction device for collecting the dripping water, but this makes the apparatuses more complex. Therefore it seems that the prior art lacks a solution by means of which dripping water can be easily avoided without additional suction carpets, rags or devices.
  • the present invention aims to solve the previous problem by means of a screen forming apparatus, a method for a screen forming apparatus and a supply means for screen forming apparatus.
  • An example of the screen forming apparatus being configured to produce a transfer flow and a fog flow to be transferred by said transfer flow, comprises supply means for delivering at least the fog flow, wherein the part of the supply means delivering the fog flow is configured to be dried by said transfer flow.
  • Another example of the screen forming apparatus comprises supply means that are arranged movable in relation to the transfer flow.
  • Yet another example of the screen forming apparatus produces transfer flow that is composed of air.
  • Yet another example of the screen forming apparatus comprises a fog nozzle for producing the fog flow and blowers for producing the transfer flow. Yet another example of the screen forming apparatus comprises a supply means having a width at least two times wider than an opening of the fog nozzle.
  • An example of the method for a screen forming apparatus comprises producing a transfer flow and a fog flow to be transferred by said transfer flow, delivering at least the fog flow by a supply means and drying at least the part of the supply means delivering the fog flow by said transfer flow.
  • An example of the supply means for a screen forming apparatus being configured to produce a transfer flow and a fog flow to be transferred by said transfer flow, is configured to deliver at least the fog flow, wherein at least the part of the supply means delivering the fog flow is configured to be dried by said transfer flow.
  • the condensed fog can be dried from the supply means before it drips from the apparatus. Therefore, the apparatus can be kept simply because no additional suction devices are needed. In addition, there is no need to place any suction carpet or similar under the apparatus, whereby the show room or similar space, will be presentable.
  • Figures 1a, 1 b illustrate an example of a screen forming apparatus
  • FIGS. 2a — 2c illustrate another example of a screen forming apparatus
  • Figure 3 illustrates yet another example of a screen forming apparatus
  • Figure 4 illustrates an example of a screen forming apparatus seen from the front of the apparatus.
  • This invention concerns an apparatus for forming a projection screen or a projection volume.
  • An example of the apparatus is illustrated in very simplified manner in Figures 1a and 1 b.
  • the apparatus 1 of this example produces a transfer flow 3 that can be formed of gas, such as air (Fig. 1 b).
  • the apparatus 1 also produces a flow of scattering centres within the transfer flow 3 so that the scattering centres move along the transfer flow 3 in the inner part of the transfer flow.
  • the flow of scattering centres is fog flow 2.
  • This combination of transfer flow 3 and fog flow 2 generates the projection screen or volume onto which moving and/or still images or luminous effect 4 may be projected by a movie projector, a video or a computer projector, a luminous effect device, laser device or similar.
  • Figure 1a represents the apparatus 1 from the front
  • Figure 1 b is a sideview of the apparatus 1 representing the different flows in more detailed manner.
  • Figure 2a illustrates another example of the screen forming apparatus 1 as a sideview ( Figure 4 illustrates similar configuration of the screen forming apparatus seen from the front).
  • the transfer flow is produced by a flow device, such as two blowers 15, and the fog flow is produced by a nozzle 16.
  • a flow device such as two blowers 15, and the fog flow is produced by a nozzle 16.
  • the flog nozzle 15 can be located inside the blower.
  • the screen forming apparatus comprises more than two blowers, they can be placed next to the fog nozzle 15.
  • the number of blowers and fog nozzles should not necessarily be interpreted as a limiting feature for the present invention. What is important, is the way they generate the projection screen or volume.
  • the generated flows are transmitted via supply means 10 to the place where the screen is to be created.
  • the purpose of the supply means 10 is to make the transfer flow and the fog flow substantially laminar.
  • the supply means can be formed of tubes arranged in a matrix form, or the supply means can be a perforated sheet or a grating or another material-releasing organ or structure applicable for the present purpose.
  • the supply means 10 can be made of thin aluminium or any other suitable material.
  • An example of the supply means 10 is presented in Figure 2b seen from a direction opposite to the flow direction of the transfer and the fog flow. In this figure, the supply means 10 comprises cells 11 via which the transfer flow and the fog flow are transmitted.
  • the fog delivered via supply means condenses onto walls of the supply means.
  • the supply means drop water every now and then. The water does not harm the projection screen but wets anything under the projection screen apparatus.
  • the basic idea of the invention is to use the transfer blow produced by the blowers 15 and generated for transferring the fog also for drying the supply means 10.
  • the supply means 10 can be arranged movable in relation to the transfer flow.
  • the supply means 10 are provided with wheels 12 that make the supply means movable.
  • the moving can be controlled simply by a linear stepper motor 13 and flexible push-pull cable 14 (Figure 2c).
  • the motor 13 is located in connection to the fog nozzle 16.
  • the motor 13 may be located in other place as well.
  • the supply means may be provided only for fog flow as illustrated in Figure 3.
  • the width of the supply means 10 see Figure 3, segment
  • the width of the supply means 15 is three times bigger than that of opening of the fog nozzle 16.
  • the moving can also be preferably done in a two-way enabling the total drying time to be the same all over the supply means 15.
  • the moving of the supply means 15 has to be made slowly enough not to have a negative visual effect on the screen quality.
  • a typical moving speed can be 1 cm in 1 minute. It is appreciated that any other amount is possible as well, as long as the screen quality can be maintained.
  • the supply means is dried by means of blowing.
  • the apparatus may have an additional heating system (e.g. infra-red) that makes the drying process more effective.
  • the present invention was described above by means of examples. It is appreciated that the examples were provided for understanding purposes. Therefore, the configuration of the screen forming apparatus may vary depending on the situation.
  • the screen forming apparatus may also comprise additional functions that enhance the performance of the apparatus.
  • the screen forming apparatus may be provided with a projector for projecting image material to the screen.

Landscapes

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

Abstract

Cette invention concerne un appareil de formation d'écran pour produire un écoulement de transfert et un écoulement en brouillard devant être transféré par ledit écoulement de transfert. L'appareil de formation d'écran comprend un moyen d'alimentation pour distribuer au moins l'écoulement en brouillard. La partie du moyen d'alimentation distribuant l'écoulement en brouillard est configurée pour être séchée par ledit écoulement de transfert. L'invention concerne également un procédé et un moyen d'alimentation pour l'appareil de formation d'écran.
PCT/EP2008/067719 2008-12-17 2008-12-17 Appareil de formation d'écran, moyen d'alimentation pour appareil de formation d'écran et procédé pour appareil de formation d'écran WO2010069368A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/067719 WO2010069368A1 (fr) 2008-12-17 2008-12-17 Appareil de formation d'écran, moyen d'alimentation pour appareil de formation d'écran et procédé pour appareil de formation d'écran

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/067719 WO2010069368A1 (fr) 2008-12-17 2008-12-17 Appareil de formation d'écran, moyen d'alimentation pour appareil de formation d'écran et procédé pour appareil de formation d'écran

Publications (1)

Publication Number Publication Date
WO2010069368A1 true WO2010069368A1 (fr) 2010-06-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/067719 WO2010069368A1 (fr) 2008-12-17 2008-12-17 Appareil de formation d'écran, moyen d'alimentation pour appareil de formation d'écran et procédé pour appareil de formation d'écran

Country Status (1)

Country Link
WO (1) WO2010069368A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2479522A (en) * 2010-03-24 2011-10-19 Barry Blundell Use of non-solid projection screens in immersive environments
FR2991787A1 (fr) * 2012-06-11 2013-12-13 Mireille Jacquesson Dispositif et procede de projection d'images sur des ecrans mobiles
WO2014046566A1 (fr) * 2012-09-18 2014-03-27 Общество С Ограниченной Ответственностью Инновационное Предприятие "Дисплаир Компани" Procédé et dispositif de formation d'un écran de projection en aérosol
US9229311B2 (en) 2013-09-28 2016-01-05 Active Ion Displays, Inc. Projection display device with vapor medium screen
EP2936247B1 (fr) 2012-12-20 2017-11-01 Ion Concept Sp z.o.o. Dispositif pour la génération d'un medium plat diffusant de la lumière
WO2018140688A1 (fr) * 2017-01-27 2018-08-02 Otoy, Inc. Plate-forme vr/ar modulaire basée sur un casque d'écoute avec affichage à vapeur
US10579135B2 (en) 2017-01-27 2020-03-03 Otoy, Inc. Headphone based modular VR/AR platform with rotating display
US10613336B2 (en) 2017-01-27 2020-04-07 Otoy, Inc. Headphone based modular VR/AR platform
US10727685B2 (en) 2017-01-27 2020-07-28 Otoy, Inc. Drone-based VR/AR device recharging system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5270752A (en) * 1991-03-15 1993-12-14 Ushio U-Tech Inc. Method and apparatus for a fog screen and image-forming method using the same
WO2002056111A1 (fr) * 2001-01-15 2002-07-18 Karri Palovuori Procede et dispositif permettant la formation d'un ecran de projection ou un volume de projection
CN201017164Y (zh) * 2007-02-07 2008-02-06 北京世纪和有科技有限公司 一种雾屏投影系统
JP2008033202A (ja) * 2006-08-01 2008-02-14 Sharp Corp 映像表示装置
JP2008096942A (ja) * 2006-10-14 2008-04-24 Tsutomu Hirama 空中投影装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5270752A (en) * 1991-03-15 1993-12-14 Ushio U-Tech Inc. Method and apparatus for a fog screen and image-forming method using the same
WO2002056111A1 (fr) * 2001-01-15 2002-07-18 Karri Palovuori Procede et dispositif permettant la formation d'un ecran de projection ou un volume de projection
JP2008033202A (ja) * 2006-08-01 2008-02-14 Sharp Corp 映像表示装置
JP2008096942A (ja) * 2006-10-14 2008-04-24 Tsutomu Hirama 空中投影装置
CN201017164Y (zh) * 2007-02-07 2008-02-06 北京世纪和有科技有限公司 一种雾屏投影系统

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2479522A (en) * 2010-03-24 2011-10-19 Barry Blundell Use of non-solid projection screens in immersive environments
FR2991787A1 (fr) * 2012-06-11 2013-12-13 Mireille Jacquesson Dispositif et procede de projection d'images sur des ecrans mobiles
WO2014046566A1 (fr) * 2012-09-18 2014-03-27 Общество С Ограниченной Ответственностью Инновационное Предприятие "Дисплаир Компани" Procédé et dispositif de formation d'un écran de projection en aérosol
EP2936247B1 (fr) 2012-12-20 2017-11-01 Ion Concept Sp z.o.o. Dispositif pour la génération d'un medium plat diffusant de la lumière
EP2936247B2 (fr) † 2012-12-20 2020-08-12 Ion Concept Sp z.o.o. Dispositif pour la génération d'un medium plat diffusant de la lumière
US9229311B2 (en) 2013-09-28 2016-01-05 Active Ion Displays, Inc. Projection display device with vapor medium screen
WO2018140688A1 (fr) * 2017-01-27 2018-08-02 Otoy, Inc. Plate-forme vr/ar modulaire basée sur un casque d'écoute avec affichage à vapeur
US10477168B2 (en) 2017-01-27 2019-11-12 Otoy, Inc. Headphone based modular VR/AR platform with vapor display
US10579135B2 (en) 2017-01-27 2020-03-03 Otoy, Inc. Headphone based modular VR/AR platform with rotating display
US10613336B2 (en) 2017-01-27 2020-04-07 Otoy, Inc. Headphone based modular VR/AR platform
US10727685B2 (en) 2017-01-27 2020-07-28 Otoy, Inc. Drone-based VR/AR device recharging system
US11462940B2 (en) 2017-01-27 2022-10-04 Otoy, Inc. Head-mounted VR/AR device

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