RussianPatents.com
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Method and apparatus for forming aerosol projection screen. RU patent 2508603. |
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IPC classes for russian patent Method and apparatus for forming aerosol projection screen. RU patent 2508603. (RU 2508603):
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FIELD: physics. SUBSTANCE: disclosed apparatus includes a means (100) for providing an aerosol designed to generate an aerosol stream (108) with average particle diameter of the disperse phase of less than 10 mcm in a screen formation area, a means (200) of providing a protective air stream designed to generate a protective air stream (210, 211) on two sides of the aerosol stream (108), wherein the aerosol stream (108) and the protective air stream (210, 211) have a non-laminar, locally turbulent flow near an obstacle on the flow path, wherein the Reynolds number for said streams near outlet openings (134, 215, 216) is in the range from 1300 to 3900. EFFECT: improved method. 17 cl, 9 dwg
The technical field to which the invention relates The invention relates to a method and apparatus for formation of aerosol projection screen, intended for the creation of physically permeable images, including multimedia interactive displays. The level of technology Known aerosol projection screens generated from environment (aerosol), in particular, represent a planar cloud of fog, supplied from a nozzle (outlets) generator of fog. The formed flat surface of the screen image is projected on the opposite side to the observer. To reduce the dispersion of clouds of mist removal from exhaust channels, leading to a violation of the planarity of the screen and lower image quality, with both sides of the misty air curtains create parallel to the plane of the screen (Pat. , US no 5270752, publ. 14.12.1993), or a cloud of fog create inside laminar the conveying air flow (Pat. , US no 6819487, publ. 16.11.2004), and the far towards the outlet channels edge of the screen, have a suction device of air-misty mixture, allowing additionally stabilize the screen. The closest analogue of the claimed invention is an invention for a stalemate. , US no 6857746, publ. 22.02.2005, where they proposed the formation of aerosol projection screen by introducing flow of aerosol in the air transport air flow. A characteristic feature of the existing technical solutions for the formation of aerosol projection screen is laminar nature of the aerosol and carrier air that allows you to limit the consumption of materials for the formation of the screen and provide acceptable optical homogeneity of the screen, but negatively affects the sustainability of the screen when the transverse motion of the surrounding air. Laminar nature of the aerosol also reduces the stability of the screen when introduced into an area of the screen of any objects, which significantly limits the use of such aerosol screen with interactive systems of control and input information. In addition, the mentioned inventions plane aerosol screen is oriented vertically. In part this is a result of peculiarities of the constructive decision, partly due to a laminar nature of aerosol. The absence of the possibility to reject from the vertical plane of the screen is a disadvantage, significantly limiting possibilities of using electronic terminals, which of ergonomic considerations in most of the cases are inclined screens. In addition, a well known problem in the existing devices for the formation of aerosol projection screen is condensation or aggregation of aerosol in big drops on the walls of the outlets that prevent the transmission of the aerosol flow through the discharge channels and leads to the heterogeneity of the optical properties of the formed screen. When the location of this device above showed on TV may fall drops down, which reduces the usability of TV, especially in interactive systems of control and input of information, where the user is in the immediate vicinity of the screen, and also leads to necessity of application of absorbing rugs or other means for the removal of water under the screen. To prevent the fall of drops in a patent application WO2010069368, publ. 24.06.2010 it is proposed to use the mobile device, which formed from the flow of aerosol drops are dried by air flow, however, this device has a complex structure and is applicable only in large-format displays. Disclosure of the invention Constructive-technological solutions used in the claimed invention, provide formation of aerosol projection screen, intended for the creation of physically permeable images and suitable for use in interactive systems of control and input information. Device for formation of aerosol projection screen contains: means for submission of aerosol designed to create a flow of aerosol with a mean diameter of dispersed phase particles less than 10 microns in a zone of the screen, and tool for the protective air flow, designed to create a protective air flow with the two sides flow aerosol, the flow of aerosol and protective airflow have , locally-turbulent nature of the flow near the obstacles to the flow and Reynolds number for the flow near the outlets are in the range from 1300 up to 3900. Flow rate aerosol and speed protective air flow near the outlets can be between 2 m/s up to 6 m/S. Width flow outlet aerosol can be from 1 to 5 mm Width protective air flow in the transverse direction with one hand aerosol flow may not be less than twice the width of protection of the air flow in the transverse direction from the other side of the stream aerosol. An outlet for the security of the air flow may be equipped with at least one isolate the damaged item. Outlet for the safety of air flow can be equipped with a party external to the flow of aerosol at least one element turns down slope variable in the range from 45 to 90 degrees. Wall outlet flow aerosol can have a hydrophilic coating or can be made of material. RSS aerosol can have a flat shape or form other than flat. Device for formation of aerosol projection screen can contain a tool for active suppression of noise. Device for formation of aerosol projection screen can contain a tool for automatic control of speed of flow of aerosol and speed protective air flow. Device for formation of aerosol projection screen can contain a tool for automatic regulation of the flow density of the aerosol. Device for formation of aerosol projection screen can contain a tool for aromatization of air. Device for formation of aerosol projection screen can be used in a multimedia interactive display, and control and data processing are carried out through the introduction of one or more fingers and/or one or more of the palms in the region aerosol projection screen. Brief description of drawings Fig. 1 - display with aerosol projection screen. Fig. 2 device for formation of aerosol projection screen in the cross-section. Fig. 3 - aerosol generator in cross-section. Fig. 4 - trim elements. Fig. 5 - use the deflecting element to ensure tilt aerosol projection screen. Fig. 6 - use of two deflecting elements to ensure a lesser thickness of aerosol projection screen. Fig. 7 - outlet. Fig. 8 - diagram of the formation of a boundary layer flow of aerosol. Fig. 9 - the dependence of the efficiency of the scattering of light from the attitude of the diameter of aerosol particles to the length of the light wave. Realization of the invention Purpose of the invention is the formation of aerosol projection screen, intended for the creation of physically permeable images, including multimedia interactive displays. In Fig. 1 shows the General view of the display with aerosol projection screen. The display contains a device (10) for the formation of aerosol projection screen (40) in the form of a flat cloud aerosol, dispersed phase which consists, for example, of droplets (particles) fluid, i.e. in the form of mist, and a projection device (30) to generate images on aerosol projection screen. In Fig. 2 provides a view of the device for formation of aerosol projection screen in the cross-section in one of the embodiments of the invention. Device (10) for the formation of aerosol projection screen contains the (100) for the filing of aerosol and means (200) for the protective air flow. Tool (200) for the protective air flow contains a body (201) with lateral walls (204, 205), located along the plane formed by the screen, with the top part (202, 203) and the lower parts (204, 205), while the upper part (202, 203) the walls are curved profile cross-section of the device (10) and closer to one another in the direction to the top surface (206) housing (201), which has an opening (207) to issue protective flow (210, 211) air. Tool (100) for the filing of the aerosol is located in the building (201) so that it forms with the internal surfaces of the upper parts (202, 203) sides of the chassis (201) channels (208, 209) for the protective flow (210, 211) air outlet holes (215, 216) in the opening (207) top (206)formed between the canal (107) the release of aerosol and external party (217) opening (207). In case (201) there is one or more blower fans (212)intended for the abstraction of air (213) from the environment through at least one collecting hole (214) in the shell (201) and feed it into the channels (208, 209). Tool (100) for the filing of the aerosol contains generator (101) aerosol controller (102) and sensor (103) air velocity. Ambient air (213) through at least one collecting hole (214) enters into the housing (201) and later in the generator (101) aerosol. The tubes (104) generator (101) the aerosol is served environment (105) for the formation of aerosol. As this can be used water. Generator (101) aerosol creates high dispersion aerosol (106) (for example, «dry» water mist), which comes with the set speed through the exhaust port (107)flow (108) aerosol. In Fig. 3 presents the design of the generator (101) aerosol. Housing (109) generator is made with longitudinal, lateral walls (110, 111), passing in the top of the sloping plots (112, 113), directed towards each other. Sloping plots (112, 113) together with the inner surfaces of the upper parts (202, 203) sides of the chassis (201) form channels (208, 209) security thread (210, 211) air. Inside the case (109) the generator is located camera (114) aerosol formation, the lower part of which is the reservoir (115) by multiple-elevation lateral walls (116, 117) and head (118). To lower the wall (117) the tank is adjacent longitudinal side panel (119) camera (114), and the upper part of the chamber (114) limited inclined plot (112) cases (109) of the generator. Luggage (114) divided with a sloping wall (120) on the two areas above the level (121) of the medium in the tank (115): area (122) aerosol formation and area (123) transport of aerosol, which enters the lower part of the channel (107) aerosol release. In the generator (101) spraying environment (105) and its mixing with the air with the formation of aerosol (106). Vents (104) supply environment (105) to the generator (101) aerosol means to ensure the environment (not shown), and the withdrawal of excess environment to maintain its optimum quantity of tank (115). Means to ensure the environment is intended to support the generator (101) aerosol environment (105), which is formed aerosol. In one of the embodiments of the invention means to ensure the environment is a tool for water treatment, which is connected to the water network and provides purification, desalting and disinfection of water. In another embodiment, a tool to ensure the environment contains capacity, accommodating environment, to ensure the operation of the device for formation of aerosol projection screen without connection to the water network. In one embodiment, a tool to ensure the environment contains a means for removal of moisture from the ambient air. In this case, the additional function of a means to ensure the environment is the control of humidity of air in the room in which it is installed, and the maintenance of its comfort zone for a human level. Technical solutions implemented in the environment, known in the relevant field of technology and their description is omitted. Management of supply environment (105) in the reservoir (115) controller (102) on the basis of the sensor signal (124) the level of protection. In one of the embodiments of the invention for the generation of high-dispersion aerosol, for example water mist, use ultrasonic generators (125)to create an in camera (114) fog with an average diameter of less than 10 microns. In a preferred embodiment of the invention, the working frequency of ultrasonic generators (125) is chosen so that to form aerosol with an average diameter of particles of the dispersed phase in the range from 1 to 1.5 microns microns, that provides the maximum ratio of the light scattering of visible range in passing through aerosol screen and, respectively, the maximum brightness of the projected image. Using water as a medium (105) for the formation of aerosol operating frequency of ultrasonic generators (125) should be up from 1.7 MHz to 10 MHz. The internal volume of the chamber (114) is divided by the sloping wall (120) with the angle of inclination (a) of the region (122) aerosol formation and area (123) transport of aerosol. The optimal size of a corner a determined experimentally and in one of the embodiments of the invention is approximately 10 degrees. When using ultrasonic generators (125) in the shell (109) generator (101) aerosol on the inner side of the slope (112) in the region (122) the formation of aerosol above the partition (120) is installed bumpers (126), which is a plate made of special form, which is used to prevent the ingress of large drops of environment (105) of the fountains arising in the field (122) over the ultrasonic generators (125)in area (123) transport of aerosol. The shape of the surface bump stop (126) should be selected based on the requirements of the low aerodynamic losses during the motion of aerosol inside the camera (114). In the region (122) aerosol formation through the duct (128) the air is supplied under pressure, and the final part (129) duct is directed to the side of the tank (115). Generator (101) aerosol can contain injection tool, for example, one or more fans (127), to supply the required pressure of the air or use the pressure created by the fan (212). Of a generator (101) aerosol is served in the area of the formation of aerosol screen (40) through the channel (107) aerosol release. Channel (107) aerosol release is a long hollow thin-walled structure with the input (lower) part of (130) and output (upper) part (131), passing one another in the field of transitional plot (132), and the wall outlet part (131) form slit plot (133) channel release aerosol, and the walls of the entrance part (130) below transient region (132) are at an angle (?) to each other, forming section of the channel (107) release aerosol, tapering from the edge of the wall of the entrance part (130) to the transitional area (132), the outlet (134) aerosol flow enters in a zone of formation of aerosol screen (40), and the edge of the wall of the entrance part (130) is located in the area (123) transport of aerosol. The angle β determined by the ratio of the geometric dimensions of structural elements generator (101). The inner surface of the channel (107) the release of aerosol has a cover of hydrophilic material (135), which serves to prevent the formation of large droplets of water from the condensation of water vapor and aggregation of particles of a water aerosol. Large drops, the size of which is commensurable with the width of the gap plot (133) channel aerosol release, can disturb during aerosol in the aperture area (133) channel release of aerosol and worsen the temporal and spatial uniformity of the expiration of the aerosol flow (108) of the outlet (134). Narrowing to the top form of input side (130) channel (107) aerosol release provides drainage water on the surface of the hydrophilic material (135) in the reservoir (115) under the influence of gravity. Such design of the channel (107) aerosol release provides the required parameters of the aerosol screen (40) in the range of flow rates (108) aerosol from 2 m/s up to 6 m/S. In another embodiment, a channel (107) aerosol release is made of porous material providing water drainage formed drops from the walls of the gap plot (133) channel release aerosol, water abstracted is dried with outer surface of the channel (107) the release of aerosol air flow in the channels (208, 209) release of the security of the air flow. In one of the embodiments of the invention one of the walls of the entrance part (130) channel (107) aerosol release is the side wall (119) camera (114). Fans (127) through the duct (128) pump the air in the region (122) aerosol formation, as from a fountain, emerging over the ultrasonic generators (125), the region (122) the formation of aerosol falls environment (105), resulting in the aerosol is formed, then entering the area (123) transport of aerosol. Thanks to the septum (120) and the wall (136) input side (130) channel (107) release of aerosol particles entering the area (123) transport of aerosol flow of aerosol (106) strikes a surface (121) environment so that in the area (123) transport of aerosol flows, mainly, with an average diameter of aerosol particles of a disperse phase of less than 10 microns. Of area (123) transport of aerosol homogeneous resulting aerosol (for example, «dry» water mist) passes through the canal (107) the release of aerosol and comes with the set speed through the outlet (134) width not exceeding 5 mm in the area of the formation of aerosol screen (40). Aerosol (106) can be formed of the environment (105)other than water. Medium (105) is determined by the conditions of use of the aerosol projection screen (indoor, outdoor) and method of forming the image (optical projection of visible light, projection infrared, ultraviolet, coherent or incoherent radiation and other types of projection). In addition to using the above ultrasonic aerosol generator () in the present invention may use aerosol generator compression type (atomizer), as well as other types of aerosol generator, such as aerosol generator of condensation type or aerosol generator on the basis of injectors. Outlets (215, 216) canal side (107) the release of aerosol and outside (217) opening (207) can be equipped with shut-off elements (218)that represent the aerodynamic elements ensure stabilization of the security thread (210, 211) air by reducing the impact of the horizontal component of the velocity captured flow of ambient air at the outlet of the exhaust holes (215, 216). In Fig. 4 shows one of the possible variants profile shut-off elements (218). In one of the embodiments of the invention RSS (108) aerosol has a flat shape. In another embodiment, RSS (108) aerosol has a shape other than a flat, for example form part of a wall of a hollow cylinder, the curvature of which corresponds to the curvature of the holes (134) aerosol release. Implementation is possible, another form of flow (108) aerosol determined by the needs of the user. In one of the embodiments of the invention width protective flow (210, 211) air in the transverse direction with one hand aerosol flow not less than twice the width of protection of the air flow in the transverse direction from the other side of the stream aerosol. A smaller width protective air flow from the user additionally provides a reduction in the footprint on the image at introduction in a region of the screen space and contributes to the achievement of a compromise between the General stability of aerosol screen and its sensitivity to the movements of the user to the direction and input of the information in single point mode (touch screen), multidrop mode (multitouch), and also at sign management. In one of the embodiments of the invention is realized possibility of rejection protective flow (210, 211) air from the vertical, through, at least one of diverting element (219), which is introduced in protective RSS (210, 211) air with a party external to the flow of aerosol, as shown in Fig. 5. Deviation protective flow (210, 211) air from the vertical allows reject projection aerosol screen (40), providing a given angle γ ranging from 45 to 90 degrees and allows to reduce the thickness of the aerosol flow and increases its density, thereby enhancing the quality of the image. Deflecting element (219) is an aerodynamic element, the construction of which is well known in aerodynamics. To discard the protective flow (210, 211) air from the vertical in addition to diverting element (219) can be used and other well-known technical means. In one of the embodiments of the invention implemented the ability to ensure angle γ tilt aerosol screen (40) in the range from 45 to 90° as in the direction of the user and in the direction from the user or the preservation of its vertical orientation through at least two of deflecting elements (219), located from both sides of the stream (108) aerosol, as shown in Fig. 6. Application of two or more of deflecting elements (219) while maintaining the vertical orientation of the aerosol screen (40) allows to achieve an additional reduction of thickness of aerosol flow and increases its density, thereby enhancing the quality of the image. Described above technical solutions allow to obtain the output of the channel (107) the release of aerosol homogeneous stream (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns, that provides high brightness, contrast and image stability at relatively small thickness of the aerosol screen (approximately 5 mm) and small expense of the working environment (105). In one of the embodiments of the invention tool (200) for the protective air flow provides a tool for active suppression of noise (not shown), designed to reduce the level of acoustic noise caused by the ventilators and other mechanical parts of the device (10) for the formation of aerosol projection screen. Means for active suppression of noise consists of acoustic sensor, tools for signal processing acoustic sensor and an acoustic emitter. Action means for active suppression of noise based on the emission of acoustic signal amplitude, frequency and phase characteristics which depend on the noise impact and reduce the level of a certain part of the spectral components of the noise in certain areas. Means for active suppression of noise can be integrated in the fan (212) or placed in the body (201) to reduce the noise level in the area where the user. Technical solutions applied in the medium for active suppression of noise, known in the relevant field of technology and their description is omitted. An important aspect of the present invention is to select the mode flow (108) aerosol aerosol forming screen (40), and a protective flow (210, 211) air. At low speeds (1 m/s or less), typical for devices current level of technology, there is laminar flow, which provides the best in comparison with the turbulent uniformity aerosol screen, and also allows to reduce the expense of the environment. However, in this case, the stability of aerosol screen largely broken cross-flows of external air (wind, draught). In addition, at introduction into the plane of the aerosol screen (40) of the object such as a finger or palm over it formed area of the wind shadow (the so-called track) with a significantly lower density of the aerosol, which detract from the quality of the image projected on a given area of aerosol screen. According to [1], the velocity u of a flat vertical laminar air flow past an obstacle, the width l of which is much less than the width of the stream, at a distance x horizontal and y vertically from the centre of obstacles can be found as u = u 0 [ 1 - 0 ,5 ( e r f x + 0 ,5 l c y - e r f x - 0 ,5 l c y ) ] 1 2 ,where the function error e r f t = 2 π ∫ 0 t e - t 2 d t(t - any value or function), u 0 - speed unperturbed flow at a great distance horizontally from the centre of obstacles experimental coefficient 0,082. Using the above expression, you can find the height of the plume obstacle: when the value of x is equal to 0, u-value is 0,5u 0 at a height above the obstacle h, equal 8l, and u-value is 0,8u 0 at a height above the obstacle h, equal 18l. Thus, if the width of the obstacle l = 2 cm (finger of a man) image quality will be significantly worsened in the region height of about 16 cm and will be comparable image quality in the unperturbed part of the aerosol screen is only at an altitude of about 40 cm above the obstacle. For this reason, the use of laminar flows for the formation of aerosol screen when you implement interaction of the user with an aerosol TV, in which control and data processing are carried out through the introduction of one or more fingers and/or one or more of the palms in the region aerosol screen is problematic. The height of the track above entered in the region aerosol screen subject can be significantly reduced through a local turbulence that occurs when the flow around obstacles flow aerosol. Aerodynamics known that when the flow around a cylinder laminar gas flow behind a cylinder is formed turbulent Wake for Reynolds numbers Re 1 > 2000, and at Re 1 > 3500 dimensions footprint significantly reduced and average flow rate of almost compares to u 0 at a distance of about two-three cylinder diameters from the axis of the cylinder [2, 3]. In this case, the Reynolds number is calculated as Re 1 = ρ u 0 d η ,where p - is the gas density, n - its dynamic viscosity, d - diameter of the cylinder. Assuming that the shape of a human finger is close to cylindrical, you can specify that the value of Re 1 = 3500 with a diameter of cylinder 2 cm corresponds to the speed of the unperturbed flow aerosol u 0 sankhobe 3 m/S. Thus, the velocity u ex expiration of the aerosol flow and protective flow of air from the outlet openings should satisfy the condition u e x > 3 (m/s).It is obvious that for the larger obstacles (e.g. palm) velocity of the flow of aerosol and protective air flow should be higher. However, for practical reasons it is advisable to limit its value approximately 6 m/S. Another important aspect of the present invention is to select the width of the outlet (134) aerosol flow (Fig. 7). Width b 1 outlet (134) flow aerosol specifies the thickness of the thread (108) of the aerosol particles and the nature of its course, which largely determine the optical characteristics of aerosol projection screen (40). The nature of the flow (108) aerosol in the aperture area (133) channel (107) the release of aerosol is determined by the number of Reynolds Re 2 = ρ u d h ηwhere d h - hydrodynamic diameter slot plot (133), which channel of rectangular cross-section dimensions a x b 1 can be defined as d h = 2 a b 1 a + b 1and in case a >> b 1 - d h sankhobe 2b 1 . To achieve the best quality aerosol screen, lack lose their image vortices and flow rate pulsations aerosol needed to stream (108) aerosol in the aperture area (133) was laminar that occurs when Re < 2300; hence limit on the width of the channel: b 1 sankhobe d h 2 = Re 2 η 2 ρ u o b 1 < 1150 η ρ u .The greater the thickness has RSS (108) aerosol, the more blurred the image is rendered from the point of view of the observer, that is particularly noticeable near the edges of the screen. In this regard, the value of b 1 should be the lowest possible. On the other hand, to ensure homogeneous, close to a laminar flow aerosol needed to obtain a high quality image, the field of flow velocity aerosol output from the outlet (134) must be as homogeneous. However, reducing b 1 by the formation near the walls of the longitudinal slot plot (133) wall boundary layer thickness (d) increases in the direction from the beginning of the gap plot (133), velocity profile (108) aerosol changes and velocity distribution in the cross section of the channel is non-uniform. In Fig. 8 shows a diagram of the formation of a boundary layer in a flow of aerosol in a rectangular channel. Homogeneous flow of aerosol enters the channel and its speed across the section is the same. As you move the flow in the channel occurs the retardation of flux at the surface of the channel with the formation of a boundary layer. You can highlight the following areas channel: plot I called input, which along with increasing the boundary layer there is the core of the flow; section II, called the plot changes in the velocity profile; area II, called the plot of stable flow. It is obvious that in order to ensure the uniform speed of the aerosol flow at the outlet of the exhaust outlet (134), the length of the gap plot l 1 in the direction of the traffic flow should be less than the length of the segment I, which is necessary to fulfill the conditions of the b 1 > 4δ max , where δ max - height of wall boundary layer at the exit from the outlet (134), which according to [4] can be calculated as δ max = η l 1 ρ u , where b 1 > 4 η l 1 ρ u .Combining this condition from the condition obtained above, you can obtain a criterion which must meet the width of the gap plot (133) and an equal width outlet (134) channel aerosol release (107): 4 η l 1 ρ u < b 1 < 1150 η ρ u . (*)For example, given that temperature 25oC air density ρ sankhobe 1,18 kg/m3 and viscosity of air η sankhobe 1,84·10 -5 PA·s, u = 4 m/s and l 1 = 20 mm, the criterion (*) gives the following range of optimal values of b 1 : 1,1 < b 1 < 4,5 (mm). The options for implementing the present invention optimal width (b 1 ) outlet (134) aerosol flow is from 1 to 5 mm Aerodynamics is known that the air flow, expiring in the environment of the rectangular hole length and a width b (a > b), you can imagine consisting of three sections, namely: the initial plot, flat plot jet and land compact jet. In the initial section there is a core of the jet and speed in the centre of the jet is equal to the velocity. On the following sites results in thickening of the boundary layer jets, consisting of enthusiastic particles of the environment and the stagnation of particles of most of the jet, which leads to «the erosion jets», i.e. an increase in the cross section and the gradual disappearance of the kernel jet [1, 5]. It is obvious that the images should be used starting plot, because on this site remains virtually unchanged width and speed of the flow (108) aerosol, on which the image is being projected. Therefore, the distance H from the outlets to the opposite them the border of the image must not be greater than the length of the initial segment of the jet l 2 , which is the lower side of the outlet and equal l 2 = b π c sankhobe 6,88 b ,where - experimental coefficient 0,082 [1]. Thus, believing l 2 & GE H, you can receive a condition for the width of the outlet (134): b = 0,the 145H. Overall width (b) air flow, containing RSS (108) aerosol and protective RSS (210, 211) air, is b = b 1 + 2 b 2 + 2 b 3 ,where b 2 - width outlet (215, 216), b 3 - thickness of the walls between the outlet holes (215, 216) and outlet (134). Therefore, the width of the outlet (215, 216) protective flow (210, 211) air should satisfy the condition b 2 & GE 0,0725 N - b 1 / 2 - b 3 .For example, for H = 50 cm, b 1 = 4 mm and b 3 = 1 mm calculation gives the value of b 2 & GE 31 mm To ensure a laminar flow characteristics of the air and the uniformity of air velocity at the outlet of the exhaust holes (215, 216), these openings must be divided by the walls (220), the distance between which meets the same criteria (*), and the width b of 1 outlet (134) aerosol flow. Another important aspect of the present invention is the selection of the diameter of aerosol particles and flow rate environment. The brightness of the image projected onto aerosol screen depends on the light flux F 0 , falling on the screen, projector, and the share of the intensity of light scattered in passing through a screen k s c a t = ( F 0 - F ) / F 0where F is the luminous flux that passed through the screen without scattering. From [6, 7] it is known that F is subordinate to the law Bugera: F = F 0 e - γ s b 1 ,where Q scat - efficiency factor of the scattering, which is a function of the dimensionless parameter α s connecting the wavelength of the incident light λ and the particles diameter: α s = π d / λ. Dependency Q s c a t ( α s )for aerosols with various substances dispersed phase can be found in the literature. As an example in Fig. 9 shows the dependence of the Q s c a t ( α s )water spray. Flow volume V environment, serving for aerosol formation, can be defined as V = m a b 1 u e x ρ 1 = 2 d γ s a b 1 u e x 3 Q s c a t = - 2 d a u e x ln ( 1 - k s c a t ) 3 Q s c a t . (**)Invariable incident on aerosol screen luminous flux F 0 visible image brightness increases when k scat . However, as follows from the expression (**), the increase of the k scat leads to increase of consumption of the working environment V, which reduces the time of Autonomous work is a projection device and can lead to unintended consequences, such as excessive increase of humidity in the room. As the results of experiments, acceptable brightness when the use of information presented in the market of compact multimedia projectors is achieved when k scat sankhobe 0.3 for the dark premises and k scat sankhobe 0.5 for office premises with brightness of the order of 500 Lux. In these conditions, the expression (**) allows to calculate the expense of the working environment at a specified width of the aerosol screen, speed u expiration and diameter d of aerosol particles. For example, for a = 60 cm, u ex = 4 m/s and d = 3 mm when used as a medium of water, calculation gives the consumption of 9.3·10 -7 m 3 /s (3.3 l/h) for dark premises and 1.8·10 -6 m 3 /s (6.5 l/h) for lit office premises. The expression (**) also allows you to minimize the working environment at a given k s c a tby choosing the optimal diameter d opt aerosol particles. The minimum flow rate V min working environment corresponds to the maximum value of the ratio of Q s c a t / d. dependence Q s c a t ( α s )polynomial and examining the ratio of extremum Q s c a t / dyou can determine the optimal diameter of aerosol particles d opt achieves minimal consumption of the working environment. For example, for a water aerosol dependence Q s c a t ( α s )which is shown in Fig. 9, the maximum value of the ratio of Q s c a t / dis reached at d o p t sankhobe 4,8 λ / π. For wavelength l = 0,555 microns, corresponding to the high sensitivity of the human eye, d opt sankhobe 0,84 microns. The corresponding minimal consumption of the working environment (water) V min at a = 60 cm) and u = 4 m/s 1.6·10-7 m 3 /s (0.58 l/h) for dark premises and 3.0·10 -6 m 3 /s (1.1 l/h) for lit office premises. In connection with the above in a preferred embodiment of the invention velocity of the flow (108) aerosol and speed of the expiration of the protective flow (210, 211) air designed to ensure an acceptable image quality at , locally-turbulent nature of the flow stream (108) aerosol, which shall be observed in the vicinity of an object such as a pin, you entered in the region aerosol screen. The best image quality on aerosol screen in the conditions of interaction with the user is achieved in practice when the velocity of flow (108) aerosol in the range of 2 m/s up to 6 m/S. For the invention geometry outlet (134) the specified speed range corresponds to the range of Reynolds numbers from 1300 up to 3900. Referred to speed geometry makes the effect of closing the stream (108) aerosol and restore the quality of the image within 1-5 cm above the entered subject (finger, multiple fingers and even with a hand), you need to manage and enter information into the single point mode (touch screen), in multidrop mode (multitouch), as well as for the sign of the control. The technical result achieved in the proposed device for formation of aerosol projection screen, is to increase the stability of aerosol screen when lateral movement of ambient air and reducing the footprint on the image at introduction in a region of the screen objects of any kind through the provision of locally-turbulent nature of the flow aerosol near obstacles to the flow, application shut-off items and make the width of the security of the air flow in the transverse direction is less than twice less than the width of the protective air flow in the lateral direction of the flow of aerosol, the opposite side of the user; the ability to tilt aerosol screen through the use of deflecting elements; increasing the homogeneity of the optical properties of aerosol screen and prevention of falling drops through the use of hydrophilic coating or material channel aerosol release. Additional advantages of the claimed invention are: the ability to automatically change the speed and flux density of the aerosol and speed protective air stream depending on the external conditions (ambient light, the speed of the transverse motion of ambient air humidity in the room and other), the possibility of aromatherapy products with fast change of flavors depending on the playing media content and control impacts of users and the flexibility of changing the configuration of the device for the formation of aerosol projection screen, depending on the needs of the user. Devices, tools, features and characteristics, described in the present invention may be combined in different variants of implementation, if they do not contradict each other. Described above embodiments of the present invention are provided with illustrative purpose and are not intended to limit the scope of the present invention to be determined by the claims. All reasonable modification, modernization and equivalent replacement in the design and principle of operation, performed within the entity present invention included in the scope of the present invention. Non-patent sources [1] Shepelev I.A. the Aerodynamics of the air flow in the room. M: stroiizdat, 1978, 144 C. [2] A.D. Technical mechanics of liquids and gas. SPb.: Izd-vo SPbGU, 1999, 395 S. [3] Б,, E. Jets, wakes and cavities. M: Mir, 1964, 467 C. [4] Б L. Goncharov, V.V. Introduction to the mechanics of continuous media. M: Nauka, 1982, 337 C. [5] G. N. Abramovich. Theory of turbulent jets. M: , 2011, 720 S. [6] H. green, lane Century Aerosols dust, fumes and mists. M: Publishing house «Chemistry», 1972, 448 C. [7] P. Aerosols. Introduction to theory. M: Mir, 1987, 280 C. 1. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900. 2. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air, which speeds near the outlets (134, 215, 216) is 2 m/s up to 6 m/S. 3. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create this thread (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 to 3900 and width (b 1 ) outlet (134) aerosol flow is from 1 to 5 mm 4. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective flow air performed with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and a tool (200) for the protective air flow is arranged to create a protective flow (210) air, which width at the transverse direction with one hand aerosol flow not less than twice the width of the protective flow (211) air in the transverse direction from the other side of the stream (108) aerosol. 5. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and a tool (200) for the protective air flow contains at least one outlet (215, 216)with at least one cutting element (218). 6. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and a tool (200) for the protective air flow contains at least one outlet (215, 216), equipped with a party external to the stream (108) aerosol at least one element turns down (219) with the angle (C) tilt, variable in the range from 45 to 90 degrees. 7. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and a tool (100) for the filing of the aerosol contains outlet (107), the walls of which are covered with hydrophilic material (135). 8. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol intended for create thread (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and tool (100) for the filing of the aerosol contains outlet (107), the walls of which are made of material. 9. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and tool (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and the device (10) for the formation of aerosol projection screen has a modular design. 10. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in the zone the formation of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and the device (10) for formation of aerosol projection screen creates a thread (108) aerosol, with a flat shape. 12. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and the device (10) for the formation of aerosol projection screen provides a tool for active suppression of noise. 13. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective flow air, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and the device (10) for the formation of aerosol projection screen contains the automatic speed regulation flow (108) aerosol and speed protective flow (210, 211) air. 14. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and a tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow implemented with the possibility of creation accordingly flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and the device (10) for the formation of aerosol projection screen contains a tool to automatically control the flux density (108) aerosol. 15. Device (10) for the formation of aerosol projection screen, containing medium (100) for the filing of aerosol designed to create a flow (108) with an average diameter of aerosol particles of a disperse phase of less than 10 microns in a zone of the screen, and tool (200) for the protective air flow, designed to create a protective flow (210, 211) air with the two sides of the stream (108) aerosol, wherein the tool (100) for the filing of aerosol and means (200) for the protective air flow met with the ability to create respectively flow (108) aerosol and protective flow (210, 211) air Reynolds number which is near the outlets (134, 215, 216) are in the range from 1300 up to 3900, and the device (10) for the formation of aerosol projection screen provides a tool for aromatization of air. 16. Application of the device (10), which was described in any of paragraphs. 1-15, in a multimedia interactive display, and control and data processing are carried out through the introduction of at least one control element of the group containing the finger of a man and the palm of the person, in the region of the aerosol projection screen (40). 17. Method of formation of aerosol projection screen, which includes the following: form aerosol (106) of the environment (105), create RSS (108) aerosol formation zone screen, creates a protective RSS (210, 211) air with the two sides of the stream (108) aerosol, and wherein the implemented device (10) for the formation of aerosol projection screen described in any of paragraphs. 1-15.
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