Screen device, and space direction system

Abstract

To provide a screen device and space direction system that enable standing a screen in a self-supporting manner by a simple structure, do not need a large-scale construction, and enable achieving excellent space direction in every environment.SOLUTION: A screen device comprises: a screen 3 to which image light is projected, and which is flexible; and a blowing device 10 that blows wind to the screen 3 to thereby support the screen 3. The blowing device 10 comprises: an anchoring part 11 to which one end edge of the screen 3 is anchored; a first blowing unit 12 that is arranged on one side of both sides across the anchoring part 11 in a direction crossing an extending direction of the screen 3, and blows first wind W1 toward a projection surface 3a of the screen 3; and a second blowing unit 13 that is arranged on the other side of an opposite side with respect to the one side of the anchoring part 11, and blows second wind W2 toward a rear surface 3b of the screen 3. The screen 3 is tightly held by the first wind W1 blowed from the first blowing unit 12 and second wind W2 blowed from the second blowing unit 13.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a screen device and a spatial presentation system. [Background technology]

[0002] Conventionally, a known video system includes a 3D screen, a support member that supports the 3D screen by being fixed to the ceiling at one end and to the 3D screen at the other end, and a blower that blows a gentle breeze onto the 3D screen to cause the screen to move slightly (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-146579 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the structure disclosed in Patent Document 1 has the problem that if the support members for the screen are fixed to members separate from the air blower, such as the ceiling or a support pillar, the construction work becomes large-scale. Also, because the structure is such that the top of the screen is fixed, it is difficult to achieve a desirable spatial presentation depending on the installation environment, for example, outdoors, and in this respect there is room for improvement. [Means for solving the problem]

[0005] According to one aspect of the present invention, there is provided a screen device comprising: a flexible screen onto which image light is projected; and an air blowing device that supports the screen by blowing air onto the screen, wherein the air blowing device comprises a fixed portion to which one edge of the screen is fixed; a first air blowing section that is arranged on one side of the fixed portion in a direction intersecting the extension direction of the screen and blows a first air toward a first surface of the screen; and a second air blowing section that is arranged on the other side opposite the one side of the fixed portion and blows a second air toward a second surface of the screen opposite the first surface, wherein the screen is sandwiched between the first air blown from the first air blowing section and the second air blown from the second air blowing section.

[0006] According to another aspect of the present invention, there is provided a spatial presentation system including the above-mentioned screen device, the spatial presentation system including a movable stand that holds the screen device. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a side view showing a schematic configuration of a spatial presentation system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a side view of the screen device shown in FIG. [Figure 3] FIG. 3 is a plan view of the screen device shown in FIG. 2 as seen from above. [Figure 4] 3 is a side view showing a state in which the rotation angle of the air blower in the screen device shown in FIG. 2 is changed. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings below, the dimensions of the components may be shown on different scales to make them easier to see.

[0009] As shown in Figure 1, the spatial presentation system 100 of the embodiment includes a screen device 1, and uses a projection system 20 to project image light G onto a screen 3, thereby creating a spatial presentation using the image light G projected onto the screen 3.

[0010] The spatial presentation system 100 includes a screen device 1, a projection system 20, and a mount 50. The screen device 1 and the projection system 20 are mounted on the mount 50.

[0011] The projection system 20 is provided on one surface (projection surface 3a) side (projection side X1) of the screen 3. The projection system 20 uses one or more image devices 21 to project (project) content from the projection side X1 towards the screen 3.

[0012] The imaging device 21 may be, for example, one capable of projecting content (image light G) over the entire or part of the projection surface 3a. The imaging device 21 may be a single projector, or a projector including a personal computer or the like having an image processing unit to which image information of the image light G to be projected is input. By providing a plurality of such imaging devices 21, two or more contents may be overlapped and projected onto the screen 3.

[0013] Here, the image light G projected by the projection system 20 is video software or content, and may be a moving image or a still image. For example, a swaying image of the sea or underwater can be projected onto the swaying screen 3, making the scene even more enjoyable.

[0014] 1, a mount 50 integrally holds the screen device 1 and the projection system 20. In the mount 50, the screen device 1 and the projection system 20 are arranged in parallel, and are installed in a direction such that the video device 21 of the projection system 20 can project image light G toward the projection surface 3a of the screen 3 of the screen device 1. The mount 50 also has a mounting base 51 for mounting the projection system 20 at a predetermined position on the mount 50.

[0015] The base 50 is provided with rotatable casters 52 on its underside, making it movable. The top edge of the base 50 has a gripping portion 53 that can be held by hand to move the base 50. That is, the operator of the spatial presentation system 100 can easily move and transport the screen unit 1 and the projection system 20 by holding the gripping portion 53 and running the base 50.

[0016] The screen device 1 includes a flexible and non-self-supporting screen 3 onto which image light G is projected by a projection system 20, and an air blower 10 that supports the screen 3 so that it can stand on its own with airflows W1 and W2.

[0017] As shown in FIG. 2, the screen 3 is installed with its plane oriented substantially vertically. The screen 3 has, for example, a rectangular planar shape, and its lower edge 3c (one edge) is supported by a fixing portion 11 (described later) of the blower device 10. In other words, the upper edge and a pair of side edges of the screen 3 are free edges that are not supported. The planar shape of the screen 3 is not limited to a rectangle, and other planar shapes, such as a semicircular shape, may be adopted. The length and width dimensions and size of the rectangular screen 3 in a planar view can also be set appropriately. Supporting one edge means that any part of the edge of the screen 3, including the edge of the screen 3, is supported.

[0018] The screen 3 is made of, for example, a semi-transparent (semi-permeable) thin, soft cloth or cloth-like sheet. That is, the screen 3 is semi-transparent (semi-permeable), allowing images projected from inside the space to be viewed from both inside and outside, and it also has the property of swaying and slightly vibrating (including slight vibrations) in the wind generated by the air blower 10. Furthermore, the material of the screen 3 is preferably tear-resistant, durable, and fine-meshed. Specifically, the screen 3 may be made of, for example, artificially produced spider silk cloth, artificially produced spider silk-like cloth, silk, organza, thin, slightly transparent cloth, chemical materials such as rayon, vinyl, and polyethylene, natural materials such as Japanese paper and nonwoven fabric, or a combination of these. Alternatively, a screen 3 that is not semi-transparent may be used.

[0019] Here, in the screen unit 1, at the position where the lower edge 3c of the screen 3 is fixed by the fixing portion 11, the direction along the longitudinal direction of the lower edge 3c of the screen 3 is defined as the screen axis O, the direction parallel to the screen axis O is defined as the Y axis direction, and the horizontal direction as viewed from the Y axis direction is defined as the X axis direction X. In the X axis direction, the direction in which the projection system 20 (see FIG. 1) is disposed with respect to the screen axis O is defined as the projection side X1, and the non-projection side opposite the projection side X1 is defined as the back side X2. Also, in the screen unit 1, the direction perpendicular to the screen axis O as viewed from the axial direction Y is defined as the radial direction, and the direction of rotation around an axis parallel to the screen axis O is defined as the circumferential direction.

[0020] 2, the air blowing device 10 includes a fixed part 11 that fixes the lower edge 3c of the screen 3, a first air blowing unit 12 that is arranged on one side (projection side X1) of both sides X1 and X2 that sandwich the fixed part 11 and blows a first air W1 toward the projection surface 3a (first surface) of the screen 3, and a second air blowing unit 13 that is arranged on the other side (rear side X2) opposite the projection side X1 of the fixed part 11 and blows a second air W2 toward the rear surface 3b (second surface) that is the non-projection surface opposite the projection surface 3a of the screen 3. In the air blowing device 10, the screen 3 is sandwiched between the first air W1 blown from the first air blowing unit 12 and the second air W2 blown from the second air blowing unit 13.

[0021] Air blower 10 further includes exterior housing 18 that houses first air blower 12, second air blower 13, and fixed part 11. For example, exterior housing 18 has a mesh or other net-like member that allows air to flow through on the top surface from which airflow W1 and W2 are discharged, and other surfaces such as the side and bottom surfaces are made of a member that covers the entire surface. This allows air blowers 12 and 13 and the link mechanism (rotation angle adjustment device 14, described later) to be located in an area out of sight of the user.

[0022] The fixing portion 11 fixes the lower edge 3c of the screen 3. The upper edge of the screen 3 is an unfixed free edge. Therefore, the upper edge side of the screen 3 moves in a fluttering manner due to the wind from the pair of blowers 12, 13.

[0023] The fixed part 11 has a winding mechanism (not shown) and an unwinding mechanism (not shown) that winds up the screen 3. The screen 3 is stored by being wound up from the lower edge 3c side by the winding mechanism. The screen 3 can be unwound by the unwinding mechanism. For example, when unwinding the screen 3 from the fixed part 11, it is possible to generate winds W1 and W2 from the pair of blowers 12 and 13 and use the wind power of the winds W1 and W2 to unroll the screen 3. Furthermore, by providing a winding mechanism, it is also possible to operate the winds W1 and W2 from the blowers 12 and 13 to wind them up before stopping them.

[0024] The fixed portion 11 is disposed between the first air blowing section 12 and the second air blowing section 13 in the X-axis direction. The fixed portion 11 is disposed on the air discharge side of the first air blowing section 12 and the second air blowing section 13, and is disposed between the first air W1 and the second air blowing section 13 and the intersection P of the first air W1 and the second air W2. The fixed portion 11 is provided separately from the first air blowing section 12 and the second air blowing section 13. The fixed portion 11 may be configured to be fixed to at least one of the first air blowing section 12 and the second air blowing section 13.

[0025] The first air blowing section 12 and the second air blowing section 13 blow gentle breezes W1 and W2 from the first air blowing section 12 and the second air blowing section 13 onto the screen 3, causing fluctuations or slight movement of the screen 3. The first air W1 and the second air W2 flow up to the other end (upper edge) of the screen 3 opposite the lower edge 3c.

[0026] As shown in Fig. 3, the rotation centers (rotation axes C1, C2) of the pair of blowers 12, 13 are located below the screen 3 and the fixed part 11. The first blower 12 has a plurality of first fans 12A fixed integrally and arranged along the Y-axis direction. The second blower 13 has a plurality of second fans 13A fixed integrally and arranged along the Y-axis direction. The plurality of first fans 12A and the plurality of second fans 13A are supported by frame members 121, 131 that are square in plan view from above, and in this embodiment, the frame members are arranged at an angle to facilitate wiring.

[0027] Furthermore, the plurality of first fans 12A are not limited to being integrally formed in the Y-axis direction and rotating as a whole, but may be configured so that first fans 12A rotate individually.Similarly, the plurality of second fans 13A are not limited to being integrally formed in the Y-axis direction and rotating as a whole, but may be configured so that second fans 13A rotate individually.

[0028] As shown in FIG. 2, the first air blowing section 12 has a first outlet 12a that blows out a first air stream W1. The second air blowing section 13 has a second outlet 13a that blows out a second air stream W2. The first outlet 12a and the second outlet 13a blow the air streams W1 and W2 upward, respectively. The screen 3 is disposed at an intersection P (which is the same as the intersection P of the first air stream W1 and the second air stream W2) between a first central axis L1 passing through the center of the first outlet 12a and a second central axis L2 passing through the center of the second outlet 13a. In this embodiment, the first air blowing direction of the first air stream W1 and the second air blowing direction of the second air stream W2 are both inward in the X-axis direction, which faces the screen 3 side.

[0029] As shown in FIGS. 2 and 4, the first air blowing unit 12 and the second air blowing unit 13 are equipped with a rotation angle adjustment device 14 that can change the air blowing direction. That is, the first air blowing unit 12 and the second air blowing unit 13 can be adjusted by the rotation angle adjustment device 14 to rotation angles θ1 and θ2 around the Y-axis direction of the screen 3 as the rotation center. The first air blowing unit 12 and the second air blowing unit 13 rotate around rotation axes (first rotation axis C1 and second rotation axis C2) that have the center in the X-axis direction as the rotation center when viewed from the Y-axis direction. The rotation angles θ1 and θ2 are rotation angles with the horizontal direction as viewed from the Y-axis direction as 0 degrees. The first rotation axis C1 and the second rotation axis C2 are each supported rotatably in the circumferential direction relative to the exterior housing 18.

[0030] A first rotary drive unit 12B (see FIG. 3) for rotating the first blower unit 12 to a desired rotation angle θ1 is coaxially provided on the first rotation axis C1 of the first blower unit 12. A second rotary drive unit 13B (see FIG. 3) for rotating the second blower unit 13 to a desired rotation angle θ2 is coaxially provided on the second rotation axis C2 of the second blower unit 13. The first rotary drive unit 12B and the second rotary drive unit 13B may be configured to be driven automatically by a control unit (described later), or may be an operation unit that can be manually operated by an operator.

[0031] The rotation angle adjustment device 14 may be operated manually or may be controlled by a control unit (not shown). When the rotation angles θ1, θ2 of the air blowers 12, 13 are controlled by the control unit, the control unit may, for example, control the rotation angles θ1, θ2 in conjunction with the image light G (see FIG. 1) based on a preset time period, cycle, program, or the like. The control unit may also control the strength of the airflow W1, W2 in addition to the rotation angles.

[0032] The rotation angle adjustment device 14 comprises a first angle adjustment shaft 15 (first angle adjustment section) that adjustably supports the rotation angle θ1 of the first blowing section 12, a second angle adjustment shaft 16 (second angle adjustment section) that adjustably supports the rotation angle θ2 of the second blowing section 13, and a connecting member 17 that is rotatably connected to each of the first angle adjustment shaft 15 and the second angle adjustment shaft 16.

[0033] The first angle adjustment shaft 15 is a shaft member that extends downward from the first rotation axis C1 of the first blower section 12. The first angle adjustment shaft 15 is fixed to the lower surface 12b of the first blower section 12 and extends perpendicular to the lower surface 12b. The second angle adjustment shaft 16 is a shaft member that extends downward from the second rotation axis C2 of the second blower section 13. The second angle adjustment shaft 16 is fixed to the lower surface 13b of the second blower section 13 and extends perpendicular to the lower surface 13b.

[0034] The connecting member 17 is connected to the first angle adjustment shaft 15 and the second angle adjustment shaft 16 to form a link mechanism, which changes the rotation angle θ2 of the second blower unit 13 in response to a change in the rotation angle θ1 of the first blower unit 12. The connecting member 17 is a rod-shaped member. One longitudinal end of the connecting member 17 is rotatably connected to the lower end 15a of the first angle adjustment shaft 15, and the other longitudinal end is rotatably connected to the lower end 16a of the second angle adjustment shaft 16. This allows the blower device 10 to adjust the first blower unit 12 and the second blower unit 13 to the desired rotation angles θ1 and θ2 by operating any of the first angle adjustment shaft 15, the second angle adjustment shaft 16, and the connecting member 17. For example, by rotating only the first angle adjustment shaft 15, the second angle adjustment shaft 16 is also rotated via the connecting member 17.

[0035] FIG. 2 shows a pair of air blowers 12, 13 in a neutral position. In the neutral position, the first outlet 12a of the first air blower 12 and the second outlet 13a of the second air blower 13 are positioned inward, facing each other toward the screen 3. Because the pair of air blowers 12, 13 are positioned inward in this way in the neutral position, the first outlet 12a of the first air blower 12 and the second outlet 13a of the second air blower 13 are positioned inward toward the screen 3, regardless of the rotation angle of at least one of the first angle adjustment shaft 15 and the second angle adjustment shaft 16. This causes the first air W1 and the second air W2 to always intersect rather than be parallel. Because the first air W1 and the second air W2 from the pair of air blowers 12, 13 intersect, the air W1 and W2 hit both sides 3a and 3b of the screen 3, allowing the screen 3 to stand upright up to its upper edge.

[0036] Furthermore, since the first air blowing section 12 and the second air blowing section 13 are connected by a link mechanism including a connecting member 17, it is possible to change the first air blowing direction of the first air W1 and the air blowing direction of the second air W2 while maintaining the positional relationship in which the first air W1 and the second air W2 intersect (i.e., the position of the intersection point P on the screen 3).

[0037] The rotation angles θ1 and θ2 adjusted by the first angle adjustment shaft 15 and the second angle adjustment shaft 16 are controlled by a control unit (not shown) so as to change according to data output from the projection system 20. The control unit can control the rotation angles θ1 and θ2 of the air blowers 12 and 13, the angle and extension amount of the screen 3, etc. in synchronization with images such as light and sound to project the image light G, thereby creating a more dynamic presentation (see FIG. 1).

[0038] Next, the operation of the screen device 1 and the spatial presentation system 100 will be described.

[0039] 1 and 2, the screen unit 1 of this embodiment includes a flexible screen 3 onto which image light G is projected, and an air blower 10 that supports the screen 3 by blowing air onto the screen 3. The air blower 10 includes a fixed portion 11 to which one edge of the screen 3 is fixed, a first air blower 12 that is arranged on one side of the fixed portion 11 in a direction intersecting the extension direction of the screen 3 and that blows a first air W1 toward the projection surface 3a of the screen 3, and a second air blower 13 that is arranged on the other side opposite the one side of the fixed portion 11 and that blows a second air W2 toward the back surface 3b of the screen 3. The screen 3 is held between the first air W1 blown from the first air blower 12 and the second air W2 blown from the second air blower 13.

[0040] Therefore, in the screen unit 1 according to this embodiment, the screen 3 can be made to stand on its own with a simple structure, eliminating the need for extensive construction and enabling excellent spatial presentation in any environment. That is, in this embodiment, the screen 3 onto which the image light G is projected is not supported at its other end by a rigid structure, and the flexible screen 3 can be made to stand on its own by being clamped by the airflow W1 and W2 from the air blowers 12 and 13. Because a freestanding screen 3 can be constructed without using a rigid structure, the screen unit can be efficiently and quickly set up and dismantled, and can be set up where and when needed. Because the screen 3 can be made to stand on its own with such a simple structure, the pre-installation or construction work is not as extensive as in conventional systems where a large structure is required above a screen for image projection, such as by suspending the screen from an upper support. Furthermore, the ease of installation and dismantling makes it possible to move the screen 3 itself closer to users who have difficulty approaching it, and in some cases, it can be made accessible within reach of the users.

[0041] The freestanding screen 3 continues to sway due to the winds W1 and W2 blown by the air blowers 12 and 13, but by utilizing the visual effect achieved by the screen 3's continuous swaying, a swaying effect can be added to the video content. Because the screen 3 itself is flexible and moves only gently, even if, for example, a hand touches the screen 3 and the structure of the screen 3 temporarily collapses, it can be easily restored by the winds W1 and W2. Moreover, the movement of the screen 3 is not violent, which also has the advantage of safety. Furthermore, because the structure of the screen 3 is maintained by the winds W1 and W2, the screen 3 itself continues to sway due to the winds W1 and W2, but the projected image also continues to sway randomly, so together with the projected image, it is possible to create a production that includes a sense of chance, where no two moments are exactly the same.

[0042] Furthermore, with the screen unit 1 according to this embodiment, a simple structure in which the screen 3 is sandwiched between the airflows W1 and W2 from the pair of air blowers 12 and 13 makes it possible to produce a spatial effect in which one edge of the screen 3 is supported by the fixing part 11 while the other edge of the screen 3 onto which the image light G is projected moves in a fluttering manner. In other words, the air blowing against both sides 3a and 3b of the screen 3 controls the fluttering direction of the screen 3, allowing it to flutter long vertically, diagonally, or horizontally, thereby producing an effect that is more realistic and closer to nature.

[0043] Furthermore, the air blower 10 is provided with a fixed portion 11 for the screen 3 and a pair of air blowers 12 and 13, so that the relative positional relationship between the air blower 10 and the screen 3 is kept constant and can be easily adjusted. In other words, the installation angle of the screen 3 can be freely set. This eliminates the need for complicated work to adjust the relative positions of each, allowing for efficient spatial presentation.

[0044] Furthermore, in the screen unit 1 according to this embodiment, the first airflow direction of the first airflow W1 and the second airflow direction of the second airflow W2 are both directed inward toward the screen 3. In this case, the airflows W1 and W2 are blown from both sides 3a and 3b of the screen 3 so as to intersect, and therefore the screen 3 is stably held between the airflows W1 and W2, thereby improving the self-standing ability of the screen 3.

[0045] In the screen unit 1 according to this embodiment, the first air blowing section 12 has a first outlet 12a that blows out a first wind W1. The second air blowing section 13 has a second outlet 13a that blows out a second wind W2. The screen 3 is disposed at the intersection P between a first central axis L1 that passes through the center of the first outlet 12a and a second central axis L2 that passes through the center of the second outlet 13a. In this case, the screen 3 is disposed at the intersection P between the first central axis L1 and the second central axis L2, so that the screen can be clamped more stably.

[0046] According to the screen unit 1 of this embodiment, at least one of the first air blowing section 12 and the second air blowing section 13 (both of the air blowing sections 12 and 13 in this embodiment) rotates around an axis that is along the direction in which the lower edge 3c of the screen 3 extends (the Y-axis direction). In this case, as the first air blowing section 12 and the second air blowing section 13 rotate, the angle (direction) of the screen 3 can be changed not only vertically but also obliquely, allowing for a variety of spatial presentations.

[0047] The screen unit 1 according to this embodiment includes a first angle adjustment shaft 15 that adjusts the first rotation angle θ1 of the first air blower 12, a second angle adjustment shaft 16 that adjusts the second rotation angle θ2 of the second air blower 13, and a connecting member 17 that connects the first angle adjustment shaft 15 and the second angle adjustment shaft 16. The connecting member 17 rotates one of the first air blower 12 and the second air blower 13 in response to the rotation of the other. This allows the air blowers 12 and 13 to be connected to each other via a link mechanism, making it possible to change the first air blowing direction of the first air W1 and the second air blowing direction of the second air W2 while maintaining the intersection point P where the first air W1 and the second air W2 intersect. In this way, in this embodiment, even when the rotation angles θ1 and θ2 of the air blowers 12 and 13 are adjusted, the screen 3 can be stably sandwiched between the air blowers W1 and W2. Furthermore, by employing a link mechanism, the precision with which the rotation angles θ1 and θ2 of the blowers 12 and 13 can be adjusted can be improved, and the ease of adjustment can be improved.

[0048] According to the screen unit 1 of this embodiment, when the first rotation angle θ1 is different from the second rotation angle θ2, the first outlet 12a of the first air blower 12 and the second outlet 13a of the second air blower 13 are arranged facing inward toward the screen 3. In this case, the winds W1 and W2 always intersect regardless of the rotation angles θ1 and θ2 of the air blowers 12 and 13. In other words, a more stable state can be maintained even when the rotation angles θ1 and θ2 are changed.

[0049] The screen unit 1 according to this embodiment is provided with a projection system 20 that projects image light G onto the screen 3. The first rotation angle θ1 and the second rotation angle θ2 change according to data output from the projection system 20. In this case, for example, when the screen 3 is automatically vibrated by the winds W11 and W2 from the first and second blower sections 12 and 13, it is possible to synchronize the vibrations with sound, light, and video based on the data output from the projection system 20, thereby improving spatial presentation.

[0050] According to the screen unit 1 of this embodiment, the first wind W1 and the second wind W2 flow up to the upper edge (other end) opposite the lower edge 3c of the screen 3. In this case, the screen 3 sandwiched between the first wind W1 and the second wind W2 is held in a stable self-standing state. Furthermore, problems such as sagging of the upper edge of the screen 3 can be prevented, and the image light G can be projected neatly across the entire screen 3, thereby improving spatial presentation.

[0051] According to the screen unit 1 of this embodiment, the fixing part 11 is disposed on the discharge side of the airflow W1, W2 from the first air blowing part 12 and the second air blowing part 13. In this case, the airflow W1, W2 is more likely to hit the part of the screen 3 on the fixing part 11 side, so that the screen 3 can be raised in a stable posture.

[0052] According to the screen unit 1 of this embodiment, the fixing portion 11 is disposed between the first wind W1 and the second wind W2 and the intersection P. In this case, the screen 3, whose lower edge 3c is supported by the fixing portion 11, can be securely sandwiched between the first wind W1 and the second wind W2, allowing the screen 3 to stand on its own in a stable position.

[0053] The screen unit 1 according to this embodiment further includes an exterior housing 18 that houses the first air blower 12, the second air blower 13, and the fixed unit 11. In this case, the air blowers 12, 13 and the link mechanism are arranged in an area that is out of the user's sight, improving the appearance and enhancing the design. Furthermore, the air blowers 12, 13 that discharge air W1, W2 and rotate are housed in the exterior housing 18, improving the safety of the user or operator.

[0054] According to the screen unit 1 of this embodiment, the fixing part 11 has a winding mechanism that winds up the screen 3. In this case, when the screen 3 is not in use, the screen 3 can be wound up by the winding mechanism and stored in the fixing part 11. It is also possible to perform spatial design by linking the winds W1, W2 of the air blowers 12, 13 and the image light G with the winds W1, W2 of the air blowers 12, 13.

[0055] According to the screen unit 1 of this embodiment, the fixed part 11 is fixed to at least one of the first air blowing part 12 and the second air blowing part 13. In this case, the position of the fixed part 11 can be changed in synchronization with the rotation of the air blowing parts 12, 13 to which the fixed part 11 is fixed. Furthermore, since the fixed part 11 can be provided integrally with at least one of the air blowing parts 12, 13, the air blowing device 10 can be simplified and prevented from becoming larger.

[0056] The spatial presentation system 100 according to this embodiment is equipped with the above-mentioned screen unit 1. The spatial presentation system 100 is equipped with a movable base 50 that holds the screen unit 1. In the spatial presentation system 100 according to this embodiment, the operator of the spatial presentation system 100 can easily move and transport the screen unit 1 by moving the base 50. Furthermore, because the spatial presentation system 100 can be easily moved, it is possible to move the screen 3 itself closer to users who have difficulty getting close to the screen 3, allowing them to view the images, and in some cases even making it accessible within reach of the user.

[0057] According to the spatial presentation system 100 of this embodiment, the mount 50 has a mounting base 51 on which the projection system 20 that projects image light G toward the screen 3 is mounted. In this case, the projection system 20 can be mounted on the mounting base 51 provided on the mount 50, resulting in a structure in which the screen device 1 and the projection system 20 are integrally provided on the mount 50. Therefore, the operator of the spatial presentation system 100 can easily move and transport the screen device 1 and the projection system 20 by moving the mount 50.

[0058] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, as well as within the scope of the invention described in the claims and their equivalents.

[0059] The air blower 10 of the screen unit 1 is not limited to the configuration of the above-described embodiment and can be modified as appropriate. In this embodiment, the first air blower 12 and the second air blower 13 of the air blower 10 are configured by arranging multiple fans 12A and 13A. However, for example, an air outlet or air pipe may be provided on the top and / or side surface to blow the first air W1 and the second air W2 upward. In addition, in the embodiment, fans are provided on both sides of the fixed part 11 as the first air blower 12 and the second air blower 13. However, a common fan may be configured to extend pipes on both sides of the fixed part. In this case, the outlet of one pipe is the first air blower, and the outlet of the other pipe is the second air blower. In this way, the direction and strength of the air may be set to a constant or variable value depending on the direction and shape of the air outlet or air pipe of each air blower 12, 13.

[0060] A summary of this disclosure is provided below. (Appendix 1) a flexible screen onto which image light is projected; a blower that supports the screen by blowing air to the screen, The air blower device is a fixing portion to which one edge of the screen is fixed; a first air blowing unit that is arranged on one of both sides of the fixing unit in a direction intersecting the extension direction of the screen and that blows a first air stream toward a first surface of the screen; a second air blowing unit that is arranged on the other side opposite to the one side of the fixing unit and that blows a second airflow toward a second surface of the screen that is opposite to the first surface, the screen is sandwiched between the first air blown from the first air blowing unit and the second air blown from the second air blowing unit. A screen device characterized by:

[0061] According to the screen device configured as described in Supplementary Note 1, the screen can be made to stand on its own with a simple structure, eliminating the need for extensive construction and enabling excellent spatial presentation in any environment. In other words, in Supplementary Note 1, the screen onto which image light is projected is not supported by a rigid structure at its other end, but rather the flexible screen is held by the airflow from the air blower, allowing it to stand on its own. Because a freestanding screen can be constructed without using a rigid structure, the screen device can be set up and taken down efficiently and quickly, and can be set up where and when needed. Because the screen can be made to stand on its own with such a simple structure, the pre-installation or construction work is not as extensive as conventional screens for projecting images that require a large structure above, such as when the screen is suspended from a holding part above. Furthermore, the ease of installation and removal makes it possible to move the screen itself closer to users who have difficulty approaching it, and in some cases, it can be made accessible within reach of the users. The freestanding screen continues to sway due to the wind from the blower, but by utilizing the visual effect obtained from the screen's continuous swaying, a swaying effect can be added to the video content. The screen itself is flexible and only moves gently, so even if, for example, a hand touches screen 3 and the structure of the screen temporarily collapses, it can be easily restored by the wind, and the screen's movement does not involve violent movements, which also has the advantage of safety. Furthermore, because the screen's structure is maintained by the wind, the screen itself continues to sway in the wind, but the projected image also continues to sway randomly, so along with the projected image, it is possible to create a production that includes a sense of chance, where no two moments are exactly the same. Furthermore, in Supplementary Note 1, a simple structure in which the screen is sandwiched between the winds of a pair of air blowers allows a spatial presentation in which one edge of the screen is supported by a fixed part while the other edge of the screen onto which the image light is projected moves in a fluttering manner. In other words, by blowing wind on both sides of the screen, the fluttering direction of the screen is controlled, and it is possible to make the screen flutter long vertically, diagonally, or horizontally, thereby enabling a more natural and realistic presentation.

[0062] In addition, the air blower is equipped with a fixed part for the screen and a pair of air blowers, so the relative positional relationship between the air blower and the screen is kept constant and can be easily adjusted. In other words, the installation angle of the screen can be freely set. This eliminates the need for complicated work to adjust the relative positions of each, allowing for efficient spatial presentation.

[0063] (Appendix 2) A first airflow direction of the first air and a second airflow direction of the second air are both inward toward the screen. 2. The screen device according to claim 1,

[0064] According to the configuration of Supplementary Note 2, airflow is blown from both sides of the screen so as to cross each other, and the screen is stably held between the airflows, thereby improving the self-supporting ability of the screen.

[0065] (Appendix 3) the first blower has a first outlet that discharges the first air, the second blower has a second outlet that discharges the second air, The screen is disposed at the intersection of a first central axis passing through the center of the first outlet and a second central axis passing through the center of the second outlet. 2. The screen device according to claim 1,

[0066] According to the configuration of Supplementary Note 3, the screen is disposed at the intersection of the first central axis and the second central axis, so that it can be more stably held.

[0067] (Appendix 4) At least one of the first air blowing unit and the second air blowing unit rotates around an axis along the direction in which the one end edge of the screen extends. 2. The screen device according to claim 1,

[0068] According to the configuration of Supplementary Note 4, the angle (direction) of the screen can be changed not only vertically but also obliquely as the first and second air blowing units rotate, allowing for a variety of spatial effects.

[0069] (Appendix 5) a first angle adjustment unit that adjusts a first rotation angle of the first blower unit; a second angle adjustment unit that adjusts a second rotation angle of the second blower unit; a connecting member connected to the first angle adjustment unit and the second angle adjustment unit, The connecting member rotates one of the first blower unit and the second blower unit in response to rotation of the other. 5. The screen device according to claim 4,

[0070] According to the configuration of Supplementary Note 5, since each air blowing unit is connected to each other by a link mechanism, it is possible to change the first air blowing direction of the first air and the second air blowing direction of the second air while maintaining the state where the first air and the second air intersect. In this way, according to Supplementary Note 5, even if the rotation angle of the air blowing unit is adjusted, the stable clamping state of the screen by the air can be maintained. Moreover, by adopting a link mechanism, it is possible to increase the accuracy of adjusting the rotation angle of the air blowing unit and improve the operability of the adjustment.

[0071] (Appendix 6) When the first rotation angle is different from the second rotation angle, the first outlet of the first air blowing unit and the second outlet of the second air blowing unit are arranged facing inward toward the screen. 6. The screen device according to claim 5,

[0072] According to the configuration of Supplementary Note 6, the air currents always intersect regardless of the rotation angle of the blower unit. In other words, even if the rotation angle is changed, a more stable state can be maintained.

[0073] (Appendix 7) a projection system is provided that projects the image light onto the screen; the first rotation angle and the second rotation angle change according to data output from the projection system; 6. The screen device according to claim 5,

[0074] According to the configuration of Appendix 7, for example, when the screen is automatically shaken by the wind from the first and second blowing units, it can be synchronized with sound, light, and video based on data output from the projection system, thereby improving spatial presentation.

[0075] (Appendix 8) The first wind and the second wind flow to the other end edge opposite to the one end edge of the screen. 2. The screen device according to claim 1,

[0076] According to the configuration of Supplementary Note 8, the screen sandwiched between the first and second air currents can stand upright stably. In addition, problems such as drooping of the upper edge of the screen can be prevented, and image light can be projected neatly across the entire screen, improving spatial presentation.

[0077] (Appendix 9) The fixing portion is disposed on the airflow discharge side of the first blower portion and the second blower portion. 2. The screen device according to claim 1,

[0078] According to the configuration of Supplementary Note 9, the wind is more likely to reach the fixed portion side of the screen, so that the screen can be set up in a stable position.

[0079] (Appendix 10) The fixing portion is disposed between the first wind and the second wind and an intersection point. 10. The screen device according to claim 9,

[0080] According to the configuration of Supplementary Note 10, the screen whose lower edge is supported by the fixing portion can be securely clamped between the first and second winds, and the screen can stand upright in a stable position.

[0081] (Appendix 11) further comprising an exterior housing that houses the first blower, the second blower, and the fixing part; 2. The screen device according to claim 1,

[0082] According to the configuration of Supplementary Note 11, the air blowing unit, link mechanism, etc. are arranged in an area out of sight of the user, which improves the appearance and enhances the design. In addition, the air blowing unit that blows air and rotates is housed in the exterior housing, which improves the safety of the user or operator.

[0083] (Appendix 12) The fixing unit has a winding mechanism that winds up the screen. 2. The screen device according to claim 1,

[0084] According to the configuration of Supplementary Note 12, when the screen is not in use, it can be wound up by the winding mechanism and stored in the fixing part. It is also possible to perform spatial design by linking the winding and unwinding operations of the screen with the wind from the air blowing part or the image light.

[0085] (Appendix 13) The fixing portion is fixed to at least one of the first blower portion and the second blower portion. 2. The screen device according to claim 1,

[0086] According to the configuration of Supplementary Note 13, the position of the fixing part can be changed in synchronization with the rotation of the blowing part to which it is fixed. In addition, since the fixing part can be provided integrally with at least one of the blowing parts, the blowing device can be simplified and its size can be prevented from increasing.

[0087] (Appendix 14) A spatial presentation system including the screen device according to any one of Supplementary Notes 1 to 13, a movable stand that holds the screen device; A spatial presentation system characterized by:

[0088] According to the spatial presentation system configured as in Supplementary Note 14, the operator of the spatial presentation system can easily move and transport the screen unit 1 by moving the stand. Furthermore, because the spatial presentation system can be easily moved, it becomes possible for users who have difficulty getting close to the screen to move the screen itself and view the images closer, and in some cases, the screen can be accessible within reach of the user.

[0089] (Appendix 15) the stand has a mounting base on which a projection system that projects the image light toward the screen is mounted. 15. The spatial presentation system according to claim 14.

[0090] According to the configuration of Supplementary Note 15, the projection system can be mounted on a mounting base provided on the mount, resulting in a structure in which the screen device and the projection system are integrally provided on the mount. Therefore, the operator of the spatial presentation system can easily move and transport the screen device and the projection system by moving the mount. [Explanation of symbols]

[0091] 1...screen device, 10...air blowing device, 100...spatial presentation system, 3...screen, 3a...projection surface (first surface), 3b...rear surface (second surface), 3c...lower edge (one edge), 11...fixed portion, 12...first air blowing portion, 12A...first fan, 12a...first outlet, 13...second air blowing portion, 13A...second fan, 13a...second outlet, 14...rotation angle adjustment device, 15...first angle adjustment shaft (first angle adjustment portion), 16 ...second angle adjustment axis (first angle adjustment unit), 17...connecting member, 18...exterior housing, 20...projection system, 21...image device, 50...mounting stand, 51...mounting base, C1...first rotation axis, C2...second rotation axis, G...image light, L1...first central axis, L2...second central axis, W1...first wind, W2...second wind, O...screen axis, P...intersection, θ1...first rotation angle, θ2...second rotation angle, X1...projection side, X2...rear side

Claims

1. a flexible screen onto which image light is projected; a blower that supports the screen by blowing air onto the screen, The air blower device is a fixing portion to which one edge of the screen is fixed; a first air blowing unit that is arranged on one of both sides of the fixing unit in a direction intersecting the extension direction of the screen and that blows a first air stream toward a first surface of the screen; a second air blowing unit that is arranged on the other side opposite to the one side of the fixed part and that blows a second airflow toward a second surface of the screen that is opposite to the first surface, the screen is sandwiched between the first air blown from the first air blowing unit and the second air blown from the second air blowing unit. A screen device characterized by:

2. a first airflow direction of the first air and a second airflow direction of the second air are both inward toward the screen; 2. The screen device according to claim 1.

3. the first blower has a first outlet that discharges the first air, the second blower has a second outlet that discharges the second air, the screen is disposed at an intersection of a first central axis passing through a center of the first outlet and a second central axis passing through a center of the second outlet.

2. The screen device according to claim 1.

4. At least one of the first air blowing unit and the second air blowing unit rotates about an axis along an extending direction of the one end edge of the screen.

2. The screen device according to claim 1.

5. a first angle adjustment unit that adjusts a first rotation angle of the first blower unit; a second angle adjustment unit that adjusts a second rotation angle of the second blower unit; a connecting member connected to the first angle adjustment portion and the second angle adjustment portion, The connecting member rotates one of the first blower unit and the second blower unit in response to rotation of the other.

5. The screen device according to claim 4.

6. When the first rotation angle is different from the second rotation angle, the first outlet of the first air blowing unit and the second outlet of the second air blowing unit are disposed facing inward toward the screen.

6. The screen device according to claim 5.

7. a projection system is provided that projects the image light onto the screen; the first rotation angle and the second rotation angle change according to data output from the projection system; 6. The screen device according to claim 5.

8. The first wind and the second wind flow to the other end edge of the screen opposite to the one end edge.

2. The screen device according to claim 1.

9. The fixing portion is disposed on the airflow discharge side of the first blower portion and the second blower portion.

2. The screen device according to claim 1.

10. The fixing portion is disposed between the first wind and the second wind and an intersection point.

10. The screen device according to claim 9.

11. further comprising an exterior housing that houses the first blower, the second blower, and the fixed part; 2. The screen device according to claim 1.

12. The fixing unit has a winding mechanism that winds up the screen.

2. The screen device according to claim 1.

13. The fixing portion is fixed to at least one of the first blower portion and the second blower portion.

2. The screen device according to claim 1.

14. A spatial presentation system comprising the screen device according to any one of claims 1 to 13, a movable stand that holds the screen device; A spatial presentation system characterized by:

15. the stand has a mounting base on which a projection system that projects the image light toward the screen is mounted.

15. The spatial presentation system according to claim 14.

Images