WO2013100786A1 - Procédé et installation de formation d'écran de projection sans corps solide - Google Patents

Procédé et installation de formation d'écran de projection sans corps solide Download PDF

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Publication number
WO2013100786A1
WO2013100786A1 PCT/RU2011/001052 RU2011001052W WO2013100786A1 WO 2013100786 A1 WO2013100786 A1 WO 2013100786A1 RU 2011001052 W RU2011001052 W RU 2011001052W WO 2013100786 A1 WO2013100786 A1 WO 2013100786A1
Authority
WO
WIPO (PCT)
Prior art keywords
installation
inner case
partitions
opposite walls
supplying
Prior art date
Application number
PCT/RU2011/001052
Other languages
English (en)
Russian (ru)
Inventor
Максим Андреевич ЧЕРЕШНЕВ
Владимир Викторович ЛЮБЕЦКИЙ
Original Assignee
Общество С Ограниченной Ответственностью "Кашалот"
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 Общество С Ограниченной Ответственностью "Кашалот" filed Critical Общество С Ограниченной Ответственностью "Кашалот"
Priority to PCT/RU2011/001052 priority Critical patent/WO2013100786A1/fr
Priority to RU2014128813A priority patent/RU2014128813A/ru
Publication of WO2013100786A1 publication Critical patent/WO2013100786A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/08—Influencing flow of fluids of jets leaving an orifice
    • 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

  • the invention relates to methods for creating a non-solid-state projection screen and devices for implementing the proposed method and can be used as a projection screen for a wide range of applications, for organizing theatrical entertainment performances, advertising, as well as indoor-climatic equipment.
  • a device for forming a screen is known (Patent US 5270752, IPC G03B21 / 60, publ. 12/14/1993), in which air curtains are provided on both sides of the projection screen, that is, air flows that run parallel to the stream that forms the projection screen, the purpose of these air curtains is to keep the stream of fog between the air curtains as flat as possible.
  • a known method of forming a solid-state projection screen and installation for its formation (WO 2010069368, IPC G03B21 / 60, published on June 24, 2010), in which a stream of fog is supplied in a transporting stream of a gaseous substance by mobile delivery vehicles, which are designed in such a way as to avoid the formation of water .
  • a known method of creating a solid-state projection screen, projection volume or the like (Patent RU N ° 2278405, IPC G03B21 / 62, publ. 06/20/2006).
  • a method of forming a projection screen or projection volume is the supply and / or formation of scattering (reflecting) light scattering centers in a substantially laminar transport stream that will be transported by the transport stream.
  • scattering centers are supplied and / or formed in the transport stream, in its central (inner) part, which remains laminar in the distance from the immediate vicinity of the transition boundaries between the transport stream and its surrounding region in order to maintain the shape of the projection screen.
  • solid-state, liquid or gaseous substances can be used as scattering centers for elastic or inelastic scattering of light.
  • the dispersion centers are fed into the conveying stream by means of supply means such as, for example, nozzles arranged in a matrix.
  • supply means such as, for example, nozzles arranged in a matrix.
  • the fog condenses on the walls of the supply means. Therefore, the disadvantage of the proposed method is that water droplets are formed and the floor under the apparatus becomes slippery, which affects both the safety of the installation and the aesthetic nature of the ongoing display.
  • the present invention is based on the task of creating a new simple way of forming a non-solid-state projection screen of any profile (curved, semi-oval) in the form of a stabilized laminar flow, on which a clear image floating in the air is obtained, without using separate air curtains and additional suction flow, and installation for implementing the proposed method with reduced energy consumption and easy to use.
  • a method for forming a non-solid-state projection screen which includes obtaining a laminar flow from the initial liquid and gaseous substances by moving using a conveying stream.
  • Aerosol particles obtained from a liquid substance are transported by means of an injected transporting stream of a gaseous substance through an elongated channel 12, having the form of a coil, providing the longest possible flow path, configured to change the direction of flow at least once after the flow passes through the elongated channel 12 output a stabilized laminar flow 2 through the outlet 13 of the installation.
  • At least two partitions 8 or several partitions 8 are installed in a checkerboard pattern on the opposite walls 9, 10 of the inner case 3 with a gap 17 relative to the opposite walls 9, 10 of the inner case 3.
  • water is used as the liquid substance.
  • air is used as the gaseous substance.
  • the distance between the partitions 8 is 1 to 50% of the height H of the inner case 3 of the installation.
  • the partitions 8 are installed at an angle to the opposite walls 9, 10 of the inner case 3 of the installation.
  • the partitions 8 are installed at an angle of 10 to 170 degrees to the opposing walls 9, 10 of the inner case 3 of the installation.
  • the partition 8 is installed at an angle of 90 degrees to the opposite walls 9, 10 of the inner case 3 of the installation.
  • the partitions 8 are installed at an angle of 45 degrees to the opposite walls 9, 10 of the inner case 3 of the installation.
  • the free edges 11 of the partitions 8 are spaced from the opposite walls 9, 10 of the inner casing 3 by an equal distance, or a decreasing distance or an increasing distance.
  • the aerosol forming water nanoparticles are obtained by treating the water with piezoelectrics, which convert the applied electrical voltage into mechanical vibrations with ultrasonic frequency.
  • an installation for forming a non-solid-state projection screen including a device 4 for supplying a gaseous substance and a device 6 for supplying a liquid substance.
  • the installation includes an outer casing 1, in which there is a device 4 for supplying a gaseous substance, a device 6 for supplying a liquid substance and an inner case 3, a fog generator 7 is installed in the inner case 3, which is connected to a device 6 for supplying a liquid substance to the fog generator 7, the inner case 3 is connected to the device 4 for supplying a gaseous substance, at least two partitions 8 or several partitions 8 on opposite walls 9, 10 of the inner one are staggered in the inner case 3 housing 3 with a gap 17 relative to the opposite walls 9, 10 of the inner housing 3, with the formation of an elongated channel 12 associated with the outlet 13 of the installation for the exit of the stabilized laminar flow 2.
  • the fog generator 7 has piezoelectrics that convert the applied voltage to mechanical vibrations with ultrasonic frequency.
  • the fog generator 7 is installed in the lower part of the inner housing 3.
  • the inner case 3 is connected to the device 4 for supplying a gaseous substance through the hole 14.
  • the opening 14 for supplying a gaseous substance is made above the fog generator 7.
  • the device 4 for supplying air as a gaseous substance includes a fan of a predetermined power.
  • the distance between the partitions 8 is 1 to 50% of the height H of the inner case 3 of the installation.
  • the partitions 8 are installed at an angle to the opposite walls 9, 10 of the inner case 3 of the installation.
  • the partitions 8 are installed at an angle of 10 to 170 degrees to the opposing walls 9, 10 of the inner case 3 of the installation.
  • the partitions 8 are installed at an angle of 90 degrees to the opposite walls 9, 10 of the walls of the inner case 3 of the installation.
  • two or four or six partitions 8 are installed at an angle of 45 degrees to the opposite walls 9, 10 of the inner case 3 of the installation in a checkerboard pattern.
  • the free edges 11 of the partitions 8 are spaced from the opposite walls 9, 10 of the inner casing 3 by an equal distance, or a decreasing distance or an increasing distance.
  • the outer casing 1 and the inner casing 3 are horizontally oriented.
  • the gap 17 is 1-50% of the height H of the inner casing 3 of the installation.
  • the upper layer of a liquid substance preferably water, is converted into a vapor state - fog.
  • the pumped transport stream from a gaseous substance preferably air
  • a gaseous substance preferably air
  • dense water fog is mixed with dense water fog, completely stabilized, and a stable laminar flow 2 with an aerosol density sufficient to project any kind of image.
  • an elongated channel 12 having the form of a coil, allows you to change the direction of flow once or several times, while ensuring the longest possible flow path to stabilize it.
  • the resulting screen has a sufficient density.
  • the image projected onto it is visible to the viewer on both sides of the screen, regardless of where the projection device (projector, laser, etc.) is located.
  • the technical result of the proposed solution is to obtain stabilized laminar flows in a low dispersed medium in direct contact with the air flows of the surrounding space, while eliminating the need for additional transporting or stabilizing flows (air curtains) around the screen of any profile, there is no need to use suction mechanisms from the back of the installation, creating a screen, reducing energy consumption.
  • FIG. 1 shows a general view of the installation.
  • FIG. 2 shows a side view of the installation.
  • FIG. 3 shows a front installation diagram
  • FIG. 4 shows a cross-sectional view of the apparatus along AA.
  • FIG. 5 to 13 show cross-sectional options along BB of the inner casing 3.
  • Installation for forming a solid-state projection screen is made in the form of a horizontally oriented outer casing 1 (Fig. 1).
  • an inner casing 3 for supplying a gaseous substance, preferably air, including an air blower, an electric power supply system 5 and a device 6 for supplying a liquid substance, preferably water (FIG. 2, 3, 4).
  • the device 4 for supplying a gaseous substance is connected with the power supply system 5, with a control unit (not shown in the drawings) controlling the amount and speed of air supply to the inner housing 3.
  • the device 6 for supplying a liquid substance has a reservoir with a pump (not shown in the drawings).
  • the amount and speed of water supply to the fog generator 7 is controlled using a controller, computer and other means known from the prior art and used for these purposes.
  • a fog generator 7 is installed, which is connected to a device 6 for supplying liquid substance to the fog generator 7 and maintaining the required liquid level in the fog generator 7.
  • the fog generator 7 is designed to create an aerosol - “cold fog”, consisting of water nanoparticles with a size of 0.05 - 10 microns.
  • any means known in the art can be used that break down a liquid substance, preferably water, into aerosol particles (into nanoparticles), which create a fog effect.
  • the fog generator 7 is equipped with piezoelectrics, substances that have the property of converting the applied electrical voltage to mechanical vibrations with ultrasonic frequency.
  • this water is divided into nanoparticles, which create the effect of fog and the formation of aerosol - "cold fog" above the surface of the liquid in the fog generator 7.
  • partitions 8 are installed in the inner case 3 on the opposite walls of the upper 9 and the lower 10 of the inner case 3 with free edges 11 not touching the walls 10, 9 and separated from them by a predetermined distance, that is, forming gaps 17 between the free edges 11 of the partitions 8 and the walls 9, 10 of the inner case 3.
  • a labyrinth is formed - an elongated channel 12 (Fig. 5 - 13).
  • the above-described distance - the gap 17 can be the same, increasing or decreasing depending on the design features of the installation, the length of the resulting screen and is 1 - 50% of the height H of the inner casing 3.
  • the distance between the partitions 8 also changes.
  • Partitions 8 are installed alternately, in a checkerboard pattern, on the opposite walls 9, 10 of the inner housing 3 with a gap of 17 relative to them.
  • At least one of the partitions 8 or several partitions 8 can be made in the form of a broken line (Fig. 5, Fig. 7) to extend the channel 12.
  • Partitions 8 are set at a predetermined angle to the opposite walls 9, 10.
  • the angle is preferably selected from 10 to 170 degrees to obtain an elongated channel 12, providing the longest possible flow path.
  • the resulting labyrinth - elongated channel 12 has the form of a coil. With the passage of the channel 12, depending on the number of installed partitions 8, the direction of flow changes several times. After passing through the elongated channel 12, a stabilized laminar flow 2 is formed.
  • an outlet 13 is made, located on the bottom wall 10, for the exit of the stabilized laminar flow 2 from the installation with the formation of a projection screen in a low dispersed medium in direct contact with the air flows of the surrounding space.
  • An opening 14 is made in the inner case (3) for injecting a gaseous substance (air) from the air supply device 4.
  • the hole 14 for injecting a gaseous substance into the inner case 3 by the device 4 is preferably made on the opposite side coaxially with the fog generator 7 or above the fog generator 7.
  • the fog generator 7 is connected by a line of pipelines 15 with a device 6 for supplying liquid.
  • the power supply system 5 is connected 16 with a device 4 for supplying gaseous substances, with a device 6 for supplying a liquid substance and a fog generator 7 to ensure the operation of the installation.
  • an air blower 4 delivers air to the inner housing 3 through the hole 14.
  • water is pumped into the fog generator 7 installed in the lower part of the inner casing 3 (Fig. 5).
  • the volume of the fog generator 7 is filled with water using a pump from a water tank located in the device 6 for supplying a liquid substance - water. In this case, the quantity and intensity of water supply to the fog generator 7 is regulated.
  • piezoelectric emitters are installed in the lower part (not shown in the drawings).
  • an aerosol is formed - a “cold fog” above the surface of the liquid.
  • the resulting "cold fog" of water nanoparticles is captured in the inner case 3 by the injected air from the device 4 through the opening 14 and the resulting stream is transported through the channel 12.
  • the water nanoparticles diffuse into the injected air stream and a laminar stabilized stream 2 is formed.
  • ultrasonic waves are transmitted to the upper volume of the liquid in the fog generator 7, on the surface of which cavitation processes of formation of aerosol - the smallest nanoparticles of water occur, resulting in the formation of a "cold fog", which is transported by the pumped stream of air.
  • the stabilization of the resulting flow occurs in the inner casing 3 during the passage of the elongated channel 12 in the form of a coil of complex configuration.
  • Partitions 8 form an elongated channel 12 in the form of a coil.
  • the direction of flow 2 changes one or more times due to the original configuration of the channel 12, which has the form of a coil.
  • the resulting stream from the diffusion of air and water, divided into nanoparticles, smaller than 5 microns, is an aerosol with a droplet-liquid dispersed phase, which, when leaving the inner casing 3, passes out through the outlet 13 located on the lower side 10 of the inner casing 3, and a stabilized laminar flow 2 in low dispersed medium directly in contact with the air flows of the surrounding space.
  • the proposed solution does not require stabilization of the created stream 2 by additional air streams; a special supply of dispersion centers to the central or internal parts of the stream is not required.
  • water drops do not form, therefore, additional devices for collecting water drops are not required.
  • stream 2 After passing in the installation in the inner case 3 through the inner labyrinth - elongated channel 12, stream 2 becomes laminar, stabilized in a low dispersion medium in direct contact with the air flows of the surrounding space.
  • the installation allows you to get a stabilized screen vertically descending from above, having a size of up to 2 meters in height, and to get an image floating in the air.
  • the length of the screen depends on the length of the installation and is from 1.5 meters or more.
  • the housing 1 of the installation is suspended, for example, in the opening of the arch, under the ceiling, above the entrance to the room.
  • the proposed installation allows you to organize any video image on the screen, consisting of an aerosol with a droplet-dispersed phase.
  • FIG. 4 A better embodiment of the invention is shown in FIG. 4, FIG. 12.
  • a piezoelectric piezoelectric switch
  • a hole 14 is made for supplying air to the device 4, which is a fan.
  • the fog generator 7 is connected by a line of pipelines 15 to a device for supplying water 6.
  • An elongated channel 12 for passing an aerosol from water particles (cold fog) is formed by four partitions 8 installed in a checkerboard pattern on the opposite walls 9, 10 of the inner case 3 at an angle of 45 degrees (Fig. 12).
  • a signal with a certain applied electrical voltage via communication 16 is supplied to the piezoelectric of the fog generator 7.
  • the smallest nanoparticles are released and a cold fog is formed above the surface of the fog generator 7, which is an aerosol with a particle diameter of 2 to 5 microns.
  • the air pumped by the fan through the inlet 14 in the inner case 3 is mixed with an aerosol, and the resulting mixed stream of air and aerosol is moved in an elongated channel 12, in which the partitions 8 are installed at an angle of 45 degrees to the opposite walls 9, 10 of the inner case 3 ( Fig. 12).
  • piezoelectrics piezoelectric switches
  • the volume of laminar flow 2 entering per unit time into the space for creating a non-solid-state screen is also regulated by supplying the required amount of air automatically.
  • the invention can be used as a projection screen for a wide range of applications, for the organization of theatrical entertainment, advertising, as well as climatic equipment, in information and entertainment facilities, for decoration of holidays.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

L'invention concerne un procédé et une installation d'un écran de projection sans corps solide. Selon le procédé, des particules d'un aérosol se déplacent grâce à un flux de transport pompé d'une substance gazeuse à travers un canal allongé (12) comprenant deux serpentins et définissant un trajet long maximal du flux, après quoi on obtient un flux laminaire stabilisé (2). L'installation comprend un corps externe (1) dans lequel sont disposés un dispositif (4) d'alimentation en substance gazeuse, un dispositif (6) d'alimentation en substance liquide, et un corps interne (3). Le corps interne (3) comprend un générateur de brouillard (7) qui est connecté au dispositif (6) envoyant la substance liquide vers le générateur de brouillard (7). Le corps interne (3) est connecté au dispositif (4) d'alimentation en substance gazeuse ; dans le corps interne (3), au moins deux cloisons (8) ou plus sont disposées en échiquier sur les parois opposées (9, 10) du corps interne (3) de manière à laisser un jour par rapport aux parois opposées (9, 10) du corps interne (3), ceci de manière à former un canal allongé (12) connecté à une ouverture de refoulement de l'installation afin de laisser sortir le flux laminaire stabilisé (2). Cette installation permet de former un écran stabilisé ayant une quelconque forme prédéterminée.
PCT/RU2011/001052 2011-12-30 2011-12-30 Procédé et installation de formation d'écran de projection sans corps solide WO2013100786A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/RU2011/001052 WO2013100786A1 (fr) 2011-12-30 2011-12-30 Procédé et installation de formation d'écran de projection sans corps solide
RU2014128813A RU2014128813A (ru) 2011-12-30 2011-12-30 Способ и установка для формирования нетвердотельного проекционного экрана

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2011/001052 WO2013100786A1 (fr) 2011-12-30 2011-12-30 Procédé et installation de formation d'écran de projection sans corps solide

Publications (1)

Publication Number Publication Date
WO2013100786A1 true WO2013100786A1 (fr) 2013-07-04

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WO (1) WO2013100786A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6857746B2 (en) * 2002-07-01 2005-02-22 Io2 Technology, Llc Method and system for free-space imaging display and interface
RU2278405C2 (ru) * 2001-01-15 2006-06-20 Карри ПАЛОВУОРИ Способ и устройство для формирования проекционного экрана или проекционного объема
WO2011117721A2 (fr) * 2010-03-25 2011-09-29 Manfredo Giuseppe Mario Ferrari Appareil destiné à générer un volume d'air libre permettant la projection d'images holographiques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2278405C2 (ru) * 2001-01-15 2006-06-20 Карри ПАЛОВУОРИ Способ и устройство для формирования проекционного экрана или проекционного объема
US6857746B2 (en) * 2002-07-01 2005-02-22 Io2 Technology, Llc Method and system for free-space imaging display and interface
WO2011117721A2 (fr) * 2010-03-25 2011-09-29 Manfredo Giuseppe Mario Ferrari Appareil destiné à générer un volume d'air libre permettant la projection d'images holographiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A. G. KASATKIN.: "Osnovnye protsessy i apparaty khimicheskoi tekhnologii", GOSUDARSTVENNOE NAUCHNOE-TEKHNICHESKOE IZDATELSTVO KHIMICHESKOI LITERATURY, 1961, MOSCOW, pages 170 *

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