JP3478964B2 - Arc-shaped multi vision - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-vision in which a screen is formed in a pseudo-cylindrical shape and a method for forming the same.

[0002]

2. Description of the Related Art For example, in a multi-vision system, a set for directly projecting a light beam of an image of a projection unit to a screen unit directly without a reflecting mirror is housed in a cabinet so that the front faces of core units are aligned. By stacking the core unit stacking type multi-vision, which is configured by stacking left and right and up and down, and the set that reflects the image rays of the projection unit with a reflecting mirror and back-projects it to the screen unit, by stacking the front side up and down left and right, There is a permanent multi-vision that is configured to reduce the depth.

Further, the screen on which the image is displayed is formed in a cylindrical shape, and the cabinet is oriented from the screen unit side toward the projection unit or the reflecting mirror in the depth direction to have an outer shape having a taper with a narrow width, and the front surface of the screen unit is Aligning, aligning the side surfaces of the tapered shape, installing in an arc shape, by projecting an image showing the front surface of the target object on the central screen, and projecting an image showing the left and right side surfaces of the target object on the left and right side surfaces, There is a new form of multi-vision that produces realistic images (hereinafter, this new form of multi-vision is referred to as arc-shaped multi-vision).

An apparatus of this type is disclosed in Japanese Patent Laid-Open No. 6-2921.
The configuration method of multi-vision described in Japanese Patent No. 13 is cited.

[0005]

In the technique of the above-mentioned prior application, the screen surface is three-dimensional, and it is possible to enjoy a realistic image.

However, there is a problem in that a new tapered cabinet different from the core unit stacking type multi-vision cabinet and the permanent type multi-vision cabinet is required, and it cannot be industrially economically produced. There was a problem.

The object of the present invention is to solve the above-mentioned problems. The object is to provide the core unit stacking type multi-vision cabinet and the permanent multi-vision cabinet. It is to provide an arc-shaped multi-vision that can be used as it is for production.

[0008]

In order to achieve the above object, the following method was adopted in the present invention.

(1) A light beam of an image from the projection unit is bent by a reflecting mirror, and a first core unit formed by rear projection of the screen unit and a light ray screen unit of the image from the projection unit are directly rear-viewed. The second core unit and the second core unit are alternately arranged in the horizontal direction so that the front surfaces of the screen units are aligned to form an arc-shaped screen.

(2) The first core unit and the second core unit are formed in a cylindrical shape by alternately aligning the front surfaces of the screen units in the horizontal direction and arranging arc-shaped screens.

(3) A pedestal is connected to the back side of the first core unit, and a part of the second core unit is loaded and fixed on the end of the pedestal.

(4) The center of gravity of the second core unit is
It is configured so as to be located at a position off the pedestal.

(5) At least one of the second core units has a structure in which the left end and the right end in the horizontal direction are stacked and fixed to the ends on the pedestal connected to the different first core units. To be done.

(6) Both side surfaces of the screen unit,
Alternatively, both end surfaces of the screen are formed to have a tapered shape that narrows toward the projection unit.

(7) The screen of the screen unit is composed of left and right thin plate-like elastic members, which are pressed and locked in the central direction of the screen.

(8) In the multi-vision according to the item (2), the endless image is projected in the horizontal direction on the cylindrical screen.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a front view of an arc-shaped multivision according to the present invention, and FIG. 2 shows a plan view of FIG. In each figure, reference numeral 1 indicates an arc-shaped multi-vision,
Reference numeral 2 indicates a first core unit, and 3 indicates a second core unit.

In the figure, the first core unit 2 and the second core unit 3 are alternately arranged in an arc shape which is continuous in the horizontal direction with the image display surface as the front surface. 16 units and the second core unit 3 are arranged, and the image display surface is arranged in a cylindrical shape.

Next, the structure of the first core unit 2 will be described with reference to the drawings. 3 shows a perspective view of the first core unit 2, and FIG. 4 shows a perspective view of the first cabinet.

In each drawing, reference numeral 4 denotes a first cabinet, 5 a projection unit, 6 a reflecting mirror, 7 a screen unit, and 8 a pedestal.

In FIGS. 3 and 4, the first core unit 2
Deploys the screen unit 7 vertically on the front of the gantry 8,
The first cabinet 4 which is fixed and arranged in parallel to the rear surface of the first cabinet 4 having a vertically long shape is arranged and fixed, and the projection unit 5 is arranged on the lower inside of the first cabinet 4 so that the projection light is projected vertically upward. The light beam of the image of the projection unit 5 is bent by 90 degrees, and the reflecting mirror 6 is tilted so as to be horizontal toward the front surface. , Configured to be rear-projected.

In the upper part of the inside of the first cabinet 4,
Another projection unit 5 is provided so that the projection light is projected vertically downward, and the light beam of the image of the projection unit 5 is bent by 90 degrees so that it is directed to the front surface and becomes horizontal so that the reflection mirror 6 Is arranged by tilting, is fixed, and the light rays of a horizontal image are rear-projected from the rear surface of the screen unit 7. The upper part of the front surface of the first cabinet 4 is connected and fixed to the rear surface part of the screen unit 7 by the first connecting tool 9.

In the first core unit 2 having the above structure, the positional relationship among the screen unit 7, the first cabinet 4, the projection unit 5 and the reflecting mirror 6 is not changed by using the reflecting mirror 6. Then, the same components are used as a permanent multi-vision system with a shortened depth direction.

That is, the first connecting fitting 9 which can be easily produced by simply cutting the standard long-side member while using the component parts constituting the permanent multi-vision as it is.
Can be formed only by newly adding, and without newly designing a new structure, it is possible to shorten the development time and standardize the component parts.

However, the side surface of the screen unit, which will be described later, is provided with a tapered cross section so that the joint width is reduced and the display quality of the image is not deteriorated when the screen unit is arranged in an arc shape in the horizontal direction in the assembled state. It becomes.

Next, the structure of the second core unit 3 will be described with reference to the drawings.

FIG. 5 shows a perspective view of the second core unit, and FIG. 6 shows a perspective view of the second cabinet 10.

In each drawing, the same parts as those in the previous drawings are designated by the same reference numerals, and the other reference numeral 10 is a second cabinet,
Reference numeral 11 denotes a second connecting tool.

In FIGS. 5 and 6, the second core unit 3
Is placed in front of the gantry 8 so as to form an arc, and the screen unit 7 is vertically arranged and fixed, and the long knit member is joined in parallel to the rear surface of the screen unit 7 into the second cabinet 10 having a cubic outline. The projection unit 5 is stored. At this time, the main luminous flux of the light rays of the images of the two projection units 5 is fixed in the second cabinet 10 so as to be projected perpendicularly to the center of the screen unit 7, and the second cabinet 10 is fixed.
The rear surface of the screen unit 7 is connected to the second connecting tool 11, and the right side is mounted and fixed to the left corner of the frame 8. Although not shown, the left side of the second cabinet is mounted and fixed to the right corner of the gantry 8 incorporated in the adjacent first core units 2 in the assembled state.

In the second core unit 3 having the above structure, the screen unit 7, the second cabinet 10,
The positional relationship of the projection unit 5 is the same as that of the core unit stacking type multi-vision, which is configured by stacking the second cabinet 10 and the projection unit 5 with their front faces aligned, and the same detailed components. .

That is, it is possible to form the second connecting metal fitting 11 which can be easily manufactured by simply cutting the standard long side members by using the elements constituting the multi-vision of the core unit stacking method as they are, by only newly adding, We will strive to shorten development time and standardize component parts without designing new structures.

However, like the first core unit 2, when the side surface of the screen unit 7 is arranged in an arc shape, it has a new shape because it has a taper so that the width of the joint is reduced.

Next, when the multi-vision 1 is assembled, the screen unit 7 is newly constructed to have a shape different from that of the conventional multi-vision since the screen units 7 are connected in an arc shape and arranged in a cylindrical shape. The Rukoto. The configuration of this screen unit will be described below with reference to the drawings.

FIG. 7 shows a perspective view of the screen unit 7, FIG. 8 shows a sectional view taken along line AA of 7, and FIG. 9 shows a sectional view taken along line BB of FIG.

In each drawing, reference numeral 12 indicates a screen frame, 13 a screen frame, 14 a spring frame,
Reference numeral 15 is an upper and lower frame, 16 is a lenticular sheet, 17 is a Fresnel lens sheet, 19 is a horizontal frame, and 21 is a set screw.

7 and 8, the screen unit 7
Is a vertical lenticular sheet 16 on the front side, one Fresnel lens 17 on the upper back and one Fresnel lens 17 on the lower back, and the lower side of the upper Fresnel lens 17 is supported on the upper side of the lower Fresnel lens 17. The front end face of the horizontal frame 19 is pressed against the rear face in the figure, the rear end face is brought into contact with the screen frame 12, and the lenticular sheet 16
And a pair of Fresnel lens sheets are locked, both ends thereof are inserted into the U-shaped portion of the spring frame 14 having a U-shaped cross section at the tip, and the other end is fixed to the screen frame 13 with a set screw, The outer shape of the screen frame 13 is the screen frame 12.
And fix. As a result, the spring frame 14 is assembled while pressing both ends of the lenticular sheet 16 and Fresnel lens sheet assembly toward the center.

In FIG. 9, the connection between adjacent screen units 7 is made by connecting the tip of the spring frame 14 (two-dot chain line in the figure).
The screen unit 7 is connected in an arc shape in the horizontal direction, and the screen frame 13 and the spring frame 14 are also formed in a taper shape which is narrowed and narrowed backward in the drawing. Accordingly, the expansion and contraction of the lenticular sheet Fresnel lens sheet can be changed by moving the screen unit 7 in the front-back direction in the figure.

Next, an application example of multi-vision having the above configuration will be described.

FIG. 10 is a plan view of a multi-vision system in which the screen surface is divided by an arbitrary space, FIG. 11 is a perspective view showing a configuration example of a tangential multi-vision system, and FIG. FIG. 6 shows a perspective view of a multi-vision system including the image plane.

In each drawing, reference numeral 25 is a soundproof wall, and 26 is a sound barrier.
Indicates a sound absorbing material, 31 is an upper cover, 32 is a lower cover, 3
3 shows a wall.

In FIG. 10, an arbitrary position in the practice of the multivision 1 is divided by a soundproof wall 25 provided with a sound absorbing material 26 to form an independent space of C, D, and E in the figure, and a divided image plane. Is an example of projecting independent images.

In FIG. 11, the first of the multi-vision 1
This is an example in which the pedestals 8 are removed from the core unit 2 of FIG. 2 are arranged in the horizontal direction, and it is suitable for installing an image long in the horizontal direction in a space with a narrow depth.

In FIG. 12, the pedestal 8 in the second core unit 3 is moved directly below the second cabinet 10 to form the third core unit 35, and the third core unit 35 and the first core unit 35 are formed. This is an example of multi-vision in which each of the core units 2 is formed by bending the surface of the screen unit 7 alternately in the horizontal direction inward.

In the above-described embodiments, the screen units 7 are arranged so that the multi-vision screens have a substantially cylindrical shape, but the multi-vision of the present invention is not limited to this. For example, it may be a circular arc shape in which the screen is not connected endlessly by omitting a part of the cylinder, or a free-form surface-like shape in which the angles formed by the screen units are not constant because they are not continuous in an arc shape. May be

An image projected on each multi-vision having the above configuration will be described. The image does not necessarily have to be like this, and as an example that you can enjoy from the sense of presence by the image, an endless image in the horizontal direction such as a bicycle race, a horse race, a track competition is displayed on the cylindrical screen. There are things to do.

[0046]

As described above, according to the present invention, the conventional permanent type multivision and the core unit stacking type multivision structure are diverted, and only the screen unit is tapered on the left and right side surfaces with a narrow width at the rear side. Since there is no other part with a new shape only by forming it in a circular shape, it is possible to configure a multi-vision with a cylindrical image surface on the outer periphery, so it can be used as a cabinet like a conventional arc-shaped multi-vision as a cabinet, with a depth from the screen unit side It is not necessary to newly create a cabinet having a tapered outer shape whose width is narrowed in the direction, which is advantageous in that it can be industrially and economically manufactured.

[Brief description of drawings]

FIG. 1 is a front view of multi-vision which is an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a perspective view of a first core unit of the present invention.

FIG. 4 is a perspective view of the first cabinet of the present invention.

FIG. 5 is a perspective view of a second core unit of the present invention.

FIG. 6 is a perspective view of a second cabinet according to the present invention.

FIG. 7 is a perspective view of a screen unit of the present invention.

8 is a cross-sectional view taken along the line AA of FIG.

9 is a sectional view taken along line BB of FIG.

FIG. 10 is a plan view of multi-vision of the present invention.

FIG. 11 is a perspective view of a permanent multi-vision system according to the present invention.

FIG. 12 is a perspective view of multi-vision of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Multivision, 2 ... 1st core unit, 3 ... 2nd core unit, 4 ... 1st cabinet, 5 ... Projection unit, 6 ... Reflector, 7 ... Screen unit, 8 ... Stand, 9
... 1st connecting metal fitting, 10 ... 2nd cabinet, 11 ... 2nd connecting metal fitting, 12 ... Screen frame, 13 ... Screen frame, 14
... Spring frame, 15 ... Upper and lower frames, 16 ... Lenticular sheet, 17 ... Fresnel lens sheet,
19 ... Horizontal frame, 21 ... Set screw, 25
... soundproof wall, 26 ... soundproof material, 31 ... upper cover, 32 ... lower cover, 33 ... wall,
35 ... Third core unit.

Front page continuation (72) Inventor Ryuichi Sumizawa, 292 Yoshida-cho, Totsuka-ku, Yokohama, Kanagawa Stock Company, Hitachi, Ltd. Visual Information Media Division (72) Inventor Tadashi Sato 292, Yoshida-cho, Totsuka-ku, Yokohama, Kanagawa Company Hitachi Image Information Systems (72) Inventor Takahiko Yoshida 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Stock Company Hitachi Video Information Media Division (72) Inventor Akio Shirayanagi 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Incorporated company Hitachi, Ltd., Visual Information Media Division (72) Inventor, Masakazu Ito, 292 Yoshida-cho, Totsuka-ku, Yokohama, Kanagawa Prefecture Incorporated Hitachi, Ltd. Image Information Media Division (72), Yuichi Yamada Totsuka, Yokohama, Kanagawa Prefecture 292 Yoshida-cho, Ward Stock Company Hitachi, Ltd. Video Information Media Division (56) Reference JP-A-6-292113 (JP, A) JP-A-9-34378 (JP, A) JP-A-6-130495 (JP , A) -245177 (JP, A) JP Akira 60-227239 (JP, A) JP flat 11-64975 (JP, A) (58 ) investigated the field (Int.Cl. ^7, DB name) H04N 5/74 G03B 21/00-21/30

Claims (8)

(57) [Claims] 1. A first projection formed by rear-projecting an image light beam from a projection unit on a screen unit by bending it with a reflecting mirror.
The core unit and the second core unit, which is a rear projection of the light rays of the image from the projection unit directly on the screen unit, are horizontally alternated to align the front surface of the screen unit with each other to form an arc-shaped screen. Arc-shaped multi-vision characterized by forming. 2. The first core unit and the second core unit are formed in a cylindrical shape by alternately aligning the front surfaces of the screen units in the horizontal direction and arranging arc-shaped screens. The arc-shaped multi-vision according to item 1. 3. A pedestal is connected to the back side of the first core unit, and a part of the second core unit is loaded and fixed to an end portion of the pedestal. Arc-shaped multi vision described. 4. The arc-shaped multi-vision according to claim 3, wherein the center of gravity of the second core unit is located at a position off the mount. 5. At least one of the second core units has a first left end and a right end in the horizontal direction which are different from each other.
The arc-shaped multi-vision according to claim 3, wherein the arc-shaped multi-vision is mounted and fixed on an end portion on a frame connected to the core unit. 6. The arc-shaped multi-vision according to claim 1, wherein both side surfaces of the screen unit or both side surfaces of the screen are formed in a taper shape which becomes narrower toward the projection unit. 7. The screen of the screen unit comprises:
The arc-shaped multi-vision according to claim 1, wherein the left and right elastic members are thin plate-like elastic members and are pressed and locked toward the center of the screen. 8. The multi-vision according to claim 2, wherein
An arc-shaped multi-vision, wherein an endless image is projected in a horizontal direction on the cylindrical screen.