WO2019026590A1

WO2019026590A1 - Projector screen device, projector screen system, and table

Info

Publication number: WO2019026590A1
Application number: PCT/JP2018/026466
Authority: WO
Inventors: 西田　誠
Original assignee: 株式会社ネットアプリ
Priority date: 2017-08-03
Filing date: 2018-07-13
Publication date: 2019-02-07
Also published as: JP6241805B1; JP2019028379A

Abstract

The present invention provides a projector screen device that allows a user to flexibly change the position, size, and shape of an image, a projector screen system including the projector screen device, and a table. A projector screen device 1 according to the present invention includes a hollow body 10 having an upper surface 11 and a lower surface 12 formed of an optically transmissive material; an optically non-transmissive fluid 20 stored inside the body; and a transmissive projector screen 30 arranged in contact with or away from the body. Light projected from a projector 70 passes through a joint portion 14 where the upper surface and the lower surface are joined together by an external force to arrive at the transmissive projector screen. A user 100 can change the position, size, and shape of an image projected on the transmissive projector screen in real time by changing the position, size, and shape of the joint portion.

Description

Projector screen device, projector screen system and table

The present invention relates to a projector screen device, a projector screen system including the projector screen device, and a table.

Projectors have the advantage of being able to view video (moving images and still images) of large size at low cost compared to direct-view displays.
The inventor of the present application arranges a transmissive screen above the hollow cushion body, and projects the light of the projector onto the transmissive screen, thereby allowing the user lying down in a state of lying down on the cushion body to enlarge the image of the projector. We have developed a cushion with a projector screen that can be viewed on the screen (Patent Document 1).

Patent No. 6120425

However, the above prior art has the following problems.
That is, the user can only view the image projected on the transmissive screen as it is, and the user can not freely change the position, size, and shape of the image.

The present invention provides a projector screen device which allows a user to freely change the position, size, and shape of an image in consideration of the problems as described above, and a projector screen system and a table provided with the projector screen device. As an issue.

In the projector screen device according to the present invention, the upper surface and the lower surface are in close contact with the hollow main body portion made of a light transmitting material, the light impermeable fluid accommodated inside the main body portion, and the main body portion And a transmission type projector screen disposed at a remote position, and light projected from the projector transmits the adhesion portion where the upper surface and the lower surface are in close contact with each other by the action of an external force to transmit the transmission type It is characterized by leading to a projector screen.
Further, it is characterized in that it comprises a close contact member which is made of a light transmissive material and which is placed on the main body to bring the upper surface and the lower surface into close contact by utilizing its own weight.
Further, the transmission type projector screen is attached to the contact member.
Further, the close-contacting member has a container shape.
Further, the main body portion is characterized by including a retracting portion into which the fluid flows when the upper surface and the lower surface are in close contact with each other.
Further, it is characterized by comprising an exoskeleton portion surrounding the periphery of the main body portion.
The main body may further include an inlet for injecting the fluid therein.
Further, the fluid is a liquid.
The fluid is characterized in that it is in the form of gel.
The fluid is characterized in that it is a gas.
In addition, a reflecting mirror for changing a traveling direction of light projected from the projector is provided.
In addition, a cushion filled with air is provided, and the main body portion is attached to a side surface of the cushion so that the main body portion spreads in the vertical direction.
Further, the cushion is characterized by including a recess for storing the projector.

The projector screen system according to the present invention includes the above-described projector screen device, and further includes a projector, detection means for detecting the position and / or size of the contact portion and outputting a signal, and receiving the signal. The apparatus may further include an image control unit configured to control an image projected from the projector such that an image corresponding to the position and / or the size of the close contact portion is output.
Further, the projector screen device is provided, and further, a projector, a speaker, a detection unit that detects a position and / or a size of the close contact portion and outputs a signal, receives the signal, and the close contact portion And sound control means for outputting sound corresponding to the position and / or size of the speaker from the speaker.
Further, the projector screen device is provided, and further, a projector, a speaker, a detection unit that detects a position and / or a size of the close contact portion and outputs a signal, receives the signal, and the close contact portion Image control means for controlling an image projected from the projector such that an image corresponding to the position and / or size of the image is output, and the signal is received, and the position and / or size of the contact portion is And voice control means for outputting the voice from the speaker.
Further, the detection means is characterized in that the position and / or the size of the contact portion is detected based on RGB values of the image data of the main body.
Further, the detection means is provided with a night vision monitoring camera, and the position and / or size of the contact portion is detected based on the image data of the main body taken by the night vision monitoring camera. .
The table of the present invention comprises the above-mentioned projector screen device, and further comprises a top plate for mounting the main body portion and a leg portion for supporting the top plate, the top plate being made of a material having light transparency. It features.

According to the projector screen device and the projector screen system of the present invention, the light of the projector passes through the contact portion and reaches the transmissive projector screen. The user can change the position, size, and shape of the image projected on the transmissive projector screen in real time by changing the position, size, and shape of the contact portion.
If the main body is made of a cheap, transparent and flexible material such as soft polyvinyl chloride or low density polyethylene, the manufacturing cost can be suppressed, and even if the main body is large, it is relatively lightweight. it can.
If the transmission type projector screen is disposed in close contact with the main body, it is not necessary to attach the transmission type projector screen to the contact member, and the manufacturing cost of the contact member can be reduced.
If the adhesion member is in the form of a dish, such as a plate, a fork, or a spoon, the adhesion member can be used as a dish itself. In this case, it is possible to make the image a pattern matching the tableware or change the pattern of the tableware. In addition, it is possible to move the picture according to the movement of the tableware, it is possible to enhance the effect of the food presentation.
Instead of using the adhesion member, the user may hold the main body with his or her finger or palm to bring the upper surface and the lower surface into close contact. In this case, the contact portion is formed around the user's finger or palm, and the image is projected.
By providing the retraction portion in the main body portion, even in the case of using a large contact member, it is possible to reliably form the contact portion by causing the fluid to flow into the retraction portion.

By providing the exoskeleton part surrounding the periphery of the main body, deformation of the main body can be suppressed, and the thickness of the main body can be made uniform.
If the main body portion is provided with the inlet, the amount of fluid in the main body portion can be easily adjusted. Further, by discharging the fluid in the main body to the outside, the main body can be made smaller and stored.
If a colored liquid such as water is used as the fluid, the fluid can be obtained inexpensively and easily.
If a gel-like substance is used as the fluid, the deformed state in which the fluid has moved by applying an external force can be maintained for a certain period of time even after the external force is removed.
By using a colored gas as the fluid, the weight of the main body can be reduced. In addition, the deformed state in which the fluid has moved by applying an external force can be brought into a state before the original deformation more quickly than the fluid having a liquid or gel-like density or viscosity when the external force is removed. Therefore, it is suitable for the use which needs to move an adhesion part quickly.

By using a reflecting mirror, the traveling direction of light can be changed in accordance with the direction of the transmissive projector screen.
By attaching the main body to the side surface of the cushion, it is possible to prevent the lower side of the main body from being bent. The user can view the image extending in the vertical direction, and the user can view the image floating in the air. In this case, the user holds the main body with his or her finger or palm to form a close contact portion.
In addition, by providing a recess for storing the projector in the cushion, the distance from the projector to the transmissive projector screen can be kept constant while the cushion is inflated. Therefore, there is an effect that the need for focusing the projector is eliminated, and an effect that the projector can be held only by storing the projector in the recess. In addition, the use of a cushion reduces the weight, and because a metal member for holding the projector is not necessary, the safety when falling over can be secured. In addition, it can be folded and stored small by deflating the cushion.
The provision of the tire in the main body facilitates the movement of the transmissive projector screen device.
A table provided with a transmissive projector screen can be obtained by attaching the main body to the top plate of the table.

Front view (a) and plan view (b) of projector screen device according to the first embodiment A front view (a) of a main body portion provided with a retracting portion and a front view (b) of a state in which a contact member is placed on the main body portion Front view (a) and plan view (b) of the main body portion provided with the exoskeleton portion Front view (a) and plan view (b) showing a modification of the shape of the adhesion member Front view (a) and plan view (b) showing a modification of the shape of the adhesion member Front view of projector screen apparatus provided with a reflecting mirror in the second embodiment Front view showing a configuration in which the transmissive projector screen in the third embodiment is disposed at a position distant from the main body Front view showing a modification of the transmissive projector screen Front view (a) and plan view (b) showing a configuration in which the transmission type projector screen in the fourth embodiment is disposed in close contact with the main body portion Front view showing the arrangement of reflecting mirrors The front view (a) of the projector screen apparatus provided with the cushion in 5th Embodiment, and the front view which shows the state which stood up the main-body part without providing a cushion (b) Front view showing a configuration in which a recess is provided in a cushion Front view (a) and plan view (b) showing the configuration of the projector screen system Block diagram showing the configuration of the projector screen system Figures (a) to (c) for explaining the image analysis method

First Embodiment of Projector Screen Device
Hereinafter, a first embodiment of a projector screen device of the present invention will be shown using the drawings.
As shown in FIGS. 1A and 1B, the projector screen device 1 is roughly composed of a main body 10, a fluid 20, and a transmissive projector screen 30.
The main body portion 10 is a hollow member in which the upper surface 11 and the lower surface 12 are made of a light transmitting material. As a material of the main body 10, for example, a material having transparency and flexibility such as soft polyvinyl chloride, low density polyethylene and the like is preferable, but it is not necessarily limited thereto. The main body 10 is placed on a top plate 40 supported by the legs 41. The top plate 40 is made of a light transmitting material. A table 42 having a projector screen function is configured by combining the projector screen device, the top plate 40 and the legs 41 into one set.

The fluid 20 is made of a light impermeable material and is contained inside the main body 10. The fluid 20 is processed to prevent light transmission by coloring a liquid such as water or a gel-like substance. In the present specification, when the light projected from the projector 70 does not pass through the main body 10 in a state in which the fluid 20 is accommodated inside the main body 10, the fluid 20 has a light non-transmissive property I assume. Therefore, not only when the fluid 20 itself has the property of not completely transmitting light but also when the light does not pass through the main body 10 by increasing the thickness (height in the vertical direction) of the fluid 20. It is assumed that the fluid 20 is light impermeable. By coloring the fluid 20, the design of the main body 10 can also be enhanced.
The fluid 20 is injected into the inside from the inlet 13 of the main body 10. In addition, by discharging the fluid 20 from the inlet 13 to the outside, the main body portion 10 can be compressed and stored.
In the present embodiment, the shape of the main body portion 10 is a quadrangular shape in plan view, but it may be, for example, a circular shape in plan view, a polygonal shape such as a triangle or a pentagon, or a cross section along the vertical direction It may be a kamaboko type or the like.

An external force is applied to the main body portion 10 to bring the upper surface 11 and the lower surface 12 into close contact with each other, thereby forming the close contact portion 14.
In the present embodiment, an external force is applied to the main body 10 by the adhesion member 50. Specifically, the adhesion member 50 is a rectangular parallelepiped made of a light transmitting material, and by being placed on the upper surface 11 of the main body 10, a downward force acts on the upper surface 11 by its own weight, and the upper surface 11 Bend downwards. When the upper surface 11 is bent, the fluid 20 present below the adhesion member 50 moves in the main body 10, whereby the upper surface 11 and the lower surface 12 are in close contact with each other, and the contact portion 14 is formed. Ru. Materials for the adhesion member 50 include, but are not limited to, glass and plastic. Alternatively, the adhesion member 50 may be hollow and a light transmissive material such as water may be placed therein.
A well-known transmission type projector screen 30 is attached to the upper surface 11 of the adhesion member 50. By attaching the transmissive projector screen 30 to the close contact member 50, the transmissive projector screen 30 is disposed at a position away from the main body 10.

Next, how to use the projector screen device will be described.
The projector 70 is disposed in a space under the top plate 40, and light (an arrow in FIG. 1A) is projected from the projector 70 toward the main body 10 above.
As described above, since the fluid 20 contained in the main body 10 is light impermeable, the light of the projector 70 does not reach the upper surface 11, but the fluid (contact location 14) where the contact member 50 is placed Since the light 20 does not exist, the light passes through the contact portion 14 and further passes through the contact member 50 to reach the transmissive projector screen 30.
The user 100 can view an image 61 captured on the transmissive projector screen 30. Further, when the user 100 changes the position of the adhesion member 50, the fluid 20 existing below the adhesion member 50 also moves accordingly, so the position of the adhesion portion 14 can be changed. Therefore, if the image of the projector is controlled to output the image 61 only to the contact portion 14 by detecting the position etc. of the contact portion 14 as will be described later, the user 100 can display the image 61 taken on the surface of the main body 10 The position of can be changed freely.
As shown in FIGS. 2A and 2B, a retracting portion 15 may be provided in part of the main body portion 10 for the fluid 20 to flow when the upper surface 11 and the lower surface 12 are in close contact with each other. . Further, as shown in FIGS. 3A and 3B, an exoskeleton 16 may be provided to surround the main body 10. By providing the exoskeleton portion 16, it is possible to prevent deformation such as distortion due to the weight of the fluid 20 inside the main body portion 10.
Further, in the present embodiment, the close contact member 50 has a rectangular parallelepiped shape, but the present invention is not limited thereto. For example, as shown in FIGS. 4 (a) and 4 (b), the shape of a heart or FIGS. 5 (a) and 5 (b) As shown, it can be suitably changed, for example, in the form of dishes such as dishes.

Second Embodiment of Projector Screen Device
Next, a second embodiment of the projector screen device according to the present invention will be described. The same reference numerals are given to parts having the same configuration as the first embodiment, and the description will be omitted.
As shown in FIG. 6, the projector screen device 2 of the present embodiment is characterized in that a reflecting mirror 71 is provided. Specifically, the contact member 50 is higher in the vertical direction as compared to the first embodiment, the reflecting mirror 71 is disposed in the inside, and the transmissive projector screen 60 is attached to the side surface thereof. . The angle of the reflecting mirror 71 can be freely adjusted.
The light projected from the projector 70 and going upward travels in the horizontal direction by the reflecting mirror 71 and reaches the transmissive projector screen 60.
According to the projector screen device 2 of the present embodiment, the user 100 can view the image 61 spreading in the vertical direction.
In the case where light is projected with the optical axis of the projector 70 in the vertical direction, the inclination angle of the reflecting mirror 71 with respect to the horizontal plane is preferably 45 degrees. By setting the inclination angle to 45 degrees, the light reflected by the reflecting mirror 71 can be perpendicularly incident on the transmissive projector screen 60, and distortion of the projected image can be suppressed as much as possible. Further, instead of adjusting the angle of the reflecting mirror 71, a trapezoidal correction function for suppressing distortion which is mounted on the projector 70 may be used. The light from the projector 70 needs to be inverted and projected as necessary.

[Third Embodiment of Projector Screen Device]
Next, a third embodiment of the projector screen device according to the present invention will be described. The same reference numerals are given to parts having the same configuration as those of the above-described embodiments, and the description thereof will be omitted.
As shown in FIG. 7, the projector screen device 3 of the present embodiment is characterized in that a large projector screen 62 (reflection type screen) is disposed at a position away from the main body 10. Specifically, the projector screen 62 is disposed above the adhesion member 50. The projector screen 62 is supported by an arm 62a, and has a structure capable of adjusting an inclination angle with respect to the horizontal plane. Depending on the inclination angle of the projector screen 62, a transmissive projector screen can also be used.
Alternatively, as shown in FIG. 8, a small-sized transmission type projector screen 63 may be disposed above the contact member 50. The transmissive projector screen 63 may be supported at a distance from the main body 10 by a known means.

[Fourth Embodiment of Projector Screen Device]
Next, a fourth embodiment of the projector screen device according to the present invention will be described. The same reference numerals are given to parts having the same configuration as those of the above-described embodiments, and the description thereof will be omitted.
As shown in FIGS. 9A and 9B, the projector screen device 4 of the present embodiment is characterized in that the transmissive projector screen 64 is disposed in close contact with the main body portion 10. Specifically, the transmissive projector screen 64 is attached to the upper surface 11 of the main body 10.
According to the projector screen device 4 of the present embodiment, the user 100 can view the image 61 copied on the transmissive projector screen 64 through the adhesion member 50.
Note that, as shown in FIG. 10, the optical axis of the projector 70 may be in the horizontal direction, and the reflecting mirror 71 a may be disposed below the main body 10.

[Fifth Embodiment of Projector Screen Device]
Next, a fifth embodiment of the projector screen device according to the present invention will be described. The same reference numerals are given to parts having the same configuration as those in the above-described embodiments, and the description thereof will be omitted.
As shown in FIG. 11A, the projector screen device 5 of the present embodiment is characterized in that it has a cushion 72 filled with air.
The main body 10 is attached to the side surface of the cushion 72 and spreads in the vertical direction.
According to the projector screen device 5 of the present embodiment, the expansion pressure of the air filled in the cushion 72 acts to move the fluid 20 downward as shown in FIG. 11B. It is possible to prevent the lower part of the portion 10 from being bent, and the user 100 can view the image 61 spreading in the vertical direction. Also, the user 100 can view the image 61 floating in the air.
As shown in FIG. 12, the cushion 72 may be provided with a recess 73 for storing the projector 70 and a tire 74 for moving on the ground. This improves the portability of the projector screen device 5.
The cushion 72 may be disposed obliquely to the ground.

[Embodiment of Projector Screen System]
Hereinafter, the embodiment of the projector screen system of the present invention is shown using a drawing.
As shown in FIGS. 13 (a) and (b) and FIG. 14, the projector screen system 80 includes the projector screen device 1, etc., the projector 70, the speaker 81, the detection means 82, the video control means 83 and the audio control means 84. Configured
The detection means 82 detects the position and / or the size of the contact portion 14 and outputs a signal. Specifically, the detection means 82 comprises a camera 82a for photographing the upper surface 11 of the main body 10, and an image analysis means 82b for analyzing image data photographed by the camera 82a.
As shown in FIG. 15A, the camera 82a captures an image of the upper surface 11 of the main body 10 with the adhesion member 50 mounted thereon, and transmits the image as image data to the image analysis means 82b. As described above, since the light of the projector 70 is blocked by the light impermeable fluid 20, most of the upper surface 11 of the main body portion 10 is dark as shown in FIG. Only the portion of the intimate contact portion 14 that is transmitted is bright. The image analysis means 82b analyzes the image data, detects the position and / or size of the contact portion 14 by filtering based on, for example, RGB values, and outputs a signal to the video control means 83 and the audio control means 84.
As shown in FIG. 15C, the image control means 83 receives the signal of the detection means 82, and an image 61 (in the figure, an image of a heart) corresponding to the position and / or size of the contact portion 14 is output. Control the image signal to be output to the projector 70.
The voice control means 84 receives the signal of the detection means 82 and causes the speaker 81 to output a voice according to the position and / or the size of the contact portion 14.
The image analysis means 82 b, the video control means 83 and the audio control means 84 are stored in the computer 85.
In the present embodiment, an example in which filtering is performed based on brightness when analyzing image data is shown, but filtering based on the color of the light non-transmissive fluid 20 may be performed to position and / or contact position 14. The size may be specified and detected. For example, assuming that the light impermeable fluid 20 is colored in red, the red colored fluid 20 does not exist in the contact portion 14 of the main body 10, so the image analysis means 82b receives the signal from the camera 82a. When analyzing the image data of the image, by performing filtering with red RGB values (R = 255, G = 0, B = 0), and specifying the red-colored position and the non-colored position, the adhesion portion 14 is obtained. It is possible to specify and detect the position and / or size of The merit of this method is that it is based on a specific color, as compared with the case of analyzing from the strength of lightness simply, that is, when judging from the strength of lightness whether each RGB value is close to black which is dark There is a point that the accuracy is improved because there is no false detection of the light noise from the lighting and peripheral devices. When filtering only based on the brightness, the camera 82a may be a night vision camera using near infrared rays instead of a normal camera using a normal visible light region. In this case, since the image data is already binarized by the night vision device based on the intensity of the brightness, that is, the presence or absence of the fluid 20 (in the case of a night vision device camera, black and white that usually reflects the intensity of brightness) There is an advantage that the processing load of the computer 85 at the time of RGB analysis can be reduced).

When the user 100 changes the position of the adhesion member 50, the image control means 83 outputs light (image 61) toward the position of the adhesion member 50 after the change, and the sound control means 84 changes the sound. As a result, effects such as synchronizing the position of the close-contact member 50, that is, the position of the close-contact portion 14 and the position of the image 61, or changing the image 61 in accordance with the position become possible.
In addition, when the user 100 uses another contact member 50 having a different size or shape, the image control means 83 outputs light (image 61) conforming to the size and the shape of the contact member 50 after the change. The control means 84 changes the sound.
The projector screen system may include only the video control unit 83 among the video control unit 83 and the audio control unit 84, or may include only the audio control unit 84.

The present invention relates to a projector screen device that allows a user to freely change the position, size, and shape of an image, a projector screen system including the projector screen device, and a table, and has industrial applicability.

1 Projector screen device
2 Projector screen device
10 Main unit
11 top surface
12 bottom
13 Inlet
14 adhesion point
15 evacuation unit
16 Exoskeleton
20 fluid
30 Transmission Projector Screen
40 heaven board
41 legs
42 tables
50 Adhesion member
60 Transmission Projector Screen
61 pictures
62 Projector Screen (Reflective Screen)
62a arm
63 Transparent Projector Screen
64 Transparent Projector Screen
70 projector
71 reflector
71a reflector
72 cushion
73 recess
74 tires
80 Projector Screen System
81 speaker
82 Detection means
82a camera
82b Image analysis means
83 Video control means
84 Voice control means
85 computer
100 users

Claims

A hollow body portion whose upper and lower surfaces are made of a light transmitting material;
A light impermeable fluid contained within the body portion;
And a transmissive projector screen disposed in close contact with or separated from the main body,
A projector screen device characterized in that light projected from a projector is transmitted through a contact portion where the upper surface and the lower surface are in close contact with each other by the action of an external force to reach the transmission type projector screen.
The projector screen device according to claim 1, further comprising: a close contact member made of a light transmitting material and configured to close the upper surface and the lower surface using its own weight by being placed on the main body.
The projector screen device according to claim 2, wherein the transmission type projector screen is attached to the contact member.
The projector screen device according to claim 2, wherein the adhesion member has a container shape.
The projector screen device according to any one of claims 1 to 4, wherein the main body portion includes a retraction portion into which the fluid flows when the upper surface and the lower surface are in close contact with each other.
The projector screen device according to any one of claims 1 to 5, further comprising an exoskeleton portion surrounding the periphery of the main body portion.
The projector screen device according to any one of claims 1 to 6, wherein the main body portion includes an inlet for injecting the fluid into the inside.
The projector screen device according to any one of claims 1 to 7, wherein the fluid is a liquid.
The projector screen device according to any one of claims 1 to 7, wherein the fluid is gel-like.
The projector screen device according to any one of claims 1 to 7, wherein the fluid is a gas.
The projector screen device according to any one of claims 1 to 10, further comprising a reflecting mirror for changing a traveling direction of light projected from the projector.
It has a cushion filled with air inside.
The projector screen device according to any one of claims 1 to 11, wherein the main body portion is expanded in the vertical direction by attaching the main body portion to a side surface of the cushion.
The projector screen device according to claim 12, wherein the cushion comprises a recess for storing the projector.
A projector screen device according to any one of claims 1 to 13, comprising:
Furthermore, a projector,
Detection means for detecting the position and / or size of the close contact portion and outputting a signal;
A projector screen system comprising: an image control means for receiving the signal and controlling an image projected from the projector such that an image corresponding to a position and / or a size of the contact portion is output; .
A projector screen device according to any one of claims 1 to 13, comprising:
Furthermore, a projector,
With a speaker,
Detection means for detecting the position and / or size of the close contact portion and outputting a signal;
A projector screen system comprising: audio control means for receiving the signal and outputting an audio according to the position and / or the size of the contact portion from the speaker.
A projector screen device according to any one of claims 1 to 13, comprising:
Furthermore, a projector,
With a speaker,
Detection means for detecting the position and / or size of the close contact portion and outputting a signal;
An image control unit that receives the signal and controls an image projected from the projector such that an image corresponding to the position and / or size of the contact portion is output;
A projector screen system comprising: audio control means for receiving the signal and outputting an audio according to the position and / or the size of the contact portion from the speaker.
The projector screen according to any one of claims 14 to 16, wherein the detection means detects the position and / or the size of the contact portion based on RGB values of the image data of the main body. system.
The detection means comprises a night vision surveillance camera,
The projector screen according to any one of claims 14 to 16, wherein the position and / or the size of the contact portion is detected based on the image data of the main body taken by the night vision surveillance camera. system.
A projector screen device according to any one of claims 1 to 13, comprising:
Furthermore, a top plate made of a light transmitting material, for mounting the main body portion,
And a leg portion for supporting the top plate.