KR101079995B1 - Table type large-size imaging apparatus - Google Patents

Abstract

        The present invention is formed by forming a transparent window on both the front and the rear end of the table at both ends of the image screen and the reflecting mirror to form a transparent window on the table top through a transparent window. By watching the image of the video screen and overlapping the viewing distance and the projection distance between the projector and the video screen inside the table, the maximum screen is formed inside the table of the smallest size, and the maximum viewing distance in the smallest occupancy area is secured. The clear view of the screen with comfortable viewing angle

   The present invention relates to a table-type large-capacity imager, which enables simultaneous viewing in both left and right directions and allows viewing of stereoscopic images in one direction or in both directions.

       Table, transparent window, reflector, video screen, upper and lower viewing angles, bidirectional, stereoscopic image

Description

       TABLE TYPE LARGE IMAGE DEVICE {TABLE TYPE LARGE-SIZE IMAGING APPARATUS}

       1 is an explanatory diagram of a conventional video structure

       2A is an explanatory diagram of a conventional video viewing angle

       2 (b) is an explanatory diagram of a downward audiovisual angle

       3 is an explanatory view of an external perspective view of the present invention;

       4 is an explanatory diagram of a configuration example 1 of the present invention;

       5 is an explanatory diagram of a configuration example 2 of the present invention;

       6 is an explanatory diagram of a configuration example 3 of the present invention;

       7 is an explanatory diagram of the vertical viewing angle of the reflective image screen;

       8 is an explanatory diagram of a spherical screen structure in the form of reflection

       9 is an explanatory diagram of a structure of a screen that can be viewed in both directions;

       10 is an explanatory diagram of a bidirectional tabular structure with reduced table area;

11 is an explanatory diagram of comparison between the present invention and the conventional video structure.

 Brief description of the designations for the symbols in the drawings

1. Viewer 1a. Left viewer 1b. Right viewer 2. Video side

3. Table 3a. Left image plane. 3b. Right image plane 4. Transparent window

5. Projector 5a. Left projector 5b. Right projector 6. Video screen

6a. Reflected line 6b. Scattering line 6c. Left screen 6d. Right Screen 7. Reflector

d. The area of the table (3)

   The present invention relates to a video device that can be used in cafes, sports bars, PC rooms, etc. Particularly relates to a table-type large shape device that can configure a large screen image inside the table, one-way or two-way viewing, of course, or The present invention relates to a device capable of viewing stereoscopic images in both directions.

     In more detail, the present invention relates to an image device that can enjoy sports broadcasting, watching movies, electronic games, and the like, while drinking beverages in places such as sports bars and cafes.

Conventional video equipment, such as Figure 1, many people can watch the video at the same time, but could not accommodate the game, movie watching, sports relay, etc. that each individual needs.

In addition, computer and monitor images have a small screen, which limits the vivid image quality.

    In general, a large image using a screen or the like has a screen size determined in proportion to the projection distance of the projector, so that a larger screen requires a longer projection distance, and a long distance requires a large footprint.

      In addition, the larger the video size, the viewing distance is proportional to the viewing distance from the clear to be able to watch the video is usually required to watch at least three times the distance of the width of the screen.

  That is, it is known that the viewing distance at which a viewer cannot identify a pixel of an image is three times larger than the horizontal size of a screen, but the conventional structure as described above was unable to secure such viewing distance.

      In more detail, as shown in FIG.

      When viewed at near distance, such as the viewer 1a in front of the video screen 6, a full-screen viewing of more than 100 degrees beyond the normal viewing angle of 18 ° X 2 = 36 ° is not only possible. Since the screen image is seen from the front, the resolution is lowered, making it difficult to see a clear image.

    If the screen size of the video screen 6 of FIG. 1 is 1 m diagonal, viewing at a distance of at least 3 m at a distance of less than a general viewing angle of 36 ° enables comfortable viewing of the entire screen. You will be able to watch because you are watching away.

      In general, sports bars and cafes mainly use beverage sales as a means of revenue, so it is natural to have a table in front of viewers.

      In addition, the larger the screen, the longer the projection distance of the projector 5, the larger the floor occupancy area (a1) by the size of the image device itself accordingly.

          Therefore, considering the viewing distance, table installation area, and projection distance of the projector for clear image viewing as described above, the larger the image requires a larger area for the installation of the image device.

        This occupied area is a decisive factor in operating profit as the number of table installations is significantly reduced compared to expensive rents in sports bars, cafes and PC rooms.

        Since the video device is generally located above the eye level of the viewer 1 as shown in FIG. 2 (a), the user can watch for a long time by holding his head, and this causes a problem of tired neck and shoulders.

         That is, as shown in (b) of FIG. 2, the general viewer 1 has a habit of downward vision, and ergonomically, the viewer 1 has a low fatigue when watching the image with a downward gaze and can watch the image comfortably for a long time.

       In addition, when the video device is used as a projector, the lamp replacement time of the projector is very short, less than 2.000 hours. There is a lot of trouble in replacing the lamp, the lamp itself has a lot of heat generation due to the structure of the metal halide, etc., there were many problems in use in the closed space as in the present invention.

     In addition, when the transmissive screen is formed on the upper surface of the table, the viewing distance between the screen and the viewer is very close and the resolution of the image is reduced and the viewing angle due to the projection angle is generated so that the screen is not uniform. There is a disadvantage in that the brightness of the image is sharply lowered to 1/2 or less since the brightness is lowered with respect to.

       In addition, there is no table-type device in which people facing each other in the front and rear sides can watch the same or different images, and a table image device capable of viewing a stereoscopic image in both directions or in one direction is required.

The present invention is based on a table-type imaging equipment used in the place using a table, such as sports bar, cafe, PC room, to solve the above problems,

        The image is made into a large screen of 30 ”or larger and crosses the projection distance within the area size inside the table case to display the maximum screen at the minimum projection distance.

         By overlapping the viewing distance within the table area size, viewers can watch clear images at the shortest position, images must be bright and clear, and viewers can view the images at a downward angle so that they do not have fatigue even after watching for a long time. 3D video viewing is also possible.

      In addition, when a video device is configured as a projector, a projector using a light source having a very long lamp time and extremely low heat generation is used. However, since such a projector is relatively low in brightness, it is improved by configuring it as a reflective screen.

   In addition, by installing the image screen inside the table to maintain the image that is so bright against external light to maintain the brightness and clarity more than twice as compared to the conventional.

    In addition, it is to propose a structure that can watch the same image, or different images in both the front and rear directions, and to view a stereoscopic image in one direction or both front and rear, as described above.

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to FIGS. 3, 4, and 5.

As shown in the figure, a transparent window 4 is formed on the upper surface of the table 3, and the image screen 6 is formed at the front end of the table 3 with respect to the viewer's position. 반사) Reflector 7 is configured in each of the appropriate shape of the square in both sides of the table (3) in the form of a compatible configuration and the projector (5) on one side of the upper end. .
As shown in the figure, a transparent window 4 is formed on the upper surface of the table 3, and the image screen 6 is formed at the front end of the table 3 with respect to the viewer's position. Iii) a reflector 7 is arranged in each of the two ends of the table 3 in an appropriate rectangular structure, and a projector 5 is formed at one of the upper ends thereof. .
If the above configuration in more detail
Configure the projector (5), the reflector (7) and the image screen (6) inside the case of the table (3).
The image screen 6 is configured to be opposite to the inside of the case of the table 3 that the viewer can face through the transparent window 4, and the projector 5 has one of the upper and lower sides of the image screen 5. The reflector 7 is selected and provided on the side opposite to the projector 5, and the transparent window 4 is formed on the upper surface of the case of the table 2 so that the image of the projector 5 is opposite. Reflected by (5) and formed again on the image screen 5 located on the projector 5 side, the viewer is to view the image of the image screen 6 opposite the inside of the table (3).

    Although the reflectance structure of the image screen 6 is not limited, it is effective to comprise a screen having a reflectance of 2 gains or more, a reflective screen of 4 gains or more, or a spherical reflection type of 6 gains or more.

        This is because the front type screen can increase the brightness from 2 times to 30 times that of the transmissive screen depending on the reflective surface formed on the image screen 6.

        However, when the image screen 6 is configured with a high reflection screen having a reflectance of 4 gain or more, the reflection angle of the projector 5 may be different from the viewing angle of the viewer 1, so that the reflection angle of the image screen 6 may be different. When the angle of reflection of the video screen 6 is changed, the brightness and the clarity of the viewer 1 are significantly reduced.

       Therefore, as shown in FIG. 7, the scattering line 6b or the reflection line 6a may be formed in the left, right, up, and down directions of the image screen 6 to enlarge the vertical viewing angle of the image screen 6.

       That is, when the image screen 6 itself is a reflective screen, scattering lines 6b are formed to enlarge the viewing angle of the screen, and when the image screen 6 itself is a scattering line screen, the reflection lines 6a are formed. The reflectance of the opposite reflecting surface is raised, and the remaining surface is used as the scattering line 6b to enlarge the viewing angle.

      Therefore, the reflective screen on which the scattered lines 6b are formed can enlarge the viewing angle while increasing the brightness and clarity of the image.

      In addition, the reflective image screen 6 has a spherical shape as shown in FIG. 8, the surface reflectivity of the video screen 6 is 6 gain or more, and 1 of the spherical curvature r of the video screen 6 is obtained. By configuring the projector (5) at the focal point (F), which is at / 2 position, the brightness can be more than 6 times that of the normal screen gain.

Depending on the precision of the curvature r of the spherical surface of the screen, the brightness can be increased by 30 gains, that is, 30 times.

    That is, as shown in FIG. 8, the spherical curvature r of the image screen 6 is equal to 2 of the projection distance c + b so that the distance of the focal point F is equal to the projection distance c + b of the projector 5. Doubled, the spherical curvature r and the focal point F become equal to the projection distance c + b.

   The operation of the image screen 6 reflects the image of the projector 5 incident on the image screen 6 at the focal point F in a straight line so that the entire screen can have a uniform and clear image even on a high reflection surface. Therefore, since the reflectance can be increased to 30 gains, the brightness of the small projector composed of semiconductor light sources such as LEDs or laser diodes can be increased by 6-30 times on the screen even when the brightness is relatively low.

     In addition, the number of the projectors 5 is configured to be two, but by mounting the polarizing film of the polarization direction of the left and right symmetry direction in front of the projection lens of the projector 5, respectively, to enable a stereoscopic image viewing device.

      One of the two projectors 5 receives an image taken from the left side of the projector 5 and an image taken from the right side of the other projectors 5, respectively, and projects the image on the image screen 6. 3D images can be viewed through polarized glasses provided in a symmetrical deflection direction.

      At this time, the angle of the image screen 6 and the installation angle of the reflector 7 are configured with a proper angle so that the viewer 1 can reflect through the transparent window 4 at the rear end of the table 3. 7) through the video screen 6 to view the image.

        In this configuration, as shown in FIG. 4, the image projected by the projector 5 is reflected by the reflector 7, and then imaged on the image screen 6 in front of the viewer, and the viewer 1 again displays the image through the reflector 7. The screen of the screen 6 is viewed.

     Therefore, the viewing distance of the viewer 1 at this time is a distance from the position of the viewer 1 through the transparent window 4 to the reflector 7 and the distance from the reflector 7 to the image screen 6 again. The sum of b, i.e., the distance a + b becomes the viewing distance (a + b) of the viewer 1.

      Also, the projection distance of the projector 5 is the sum of c, the distance from the projector 5 to the reflector 7, and b, the distance from the reflector 7 to the image screen 6, so that c + b is It will be a throw distance.

       More specifically, the size of the table 3 of FIG. 4 as the use of the present invention is usually not more than 1m.

       In this case, since the projection distance c + b of the projector 5 overlaps twice through the reflector 7, it is possible to secure at least 2m.

        At a projection distance of 2 m of the projector, a screen having a normal screen size of 40 "(1 m) is realized.

        As for the viewing distance of the viewer viewing the 40 ″ screen, the viewing distance of a + b is about 3m.

       Therefore, the structure of the present invention can obtain the effect of viewing at a distance more than three times the screen size at the table front position.

        In other words, the structure of the present invention overlaps the viewing distance a + b of the viewer 1 and the projection distance c + b of the projector 5 within the area d of the table 3 and overlaps the refraction in the reflector 7. By doing so, you can secure the maximum throwing distance and viewing distance.

         In the present invention as shown in FIG. 5, even if the position of the image screen 6 and the projector 5 and the position of the reflector 7 are changed, the viewing distance is shortened, but the area d of the table 3 is reduced. The overlapping length and viewing distance have the effect of reducing the occupied area, and since the projection distance of the projector 5 is composed of c + b, it is possible to secure more than twice the projection distance from the inner surface of the table 3.

         When the image screen 6 and the projector 5 are deleted as shown in FIG. 6 and a flat image such as a PDP or LCD is configured as the image screen 6, the viewing distance of the viewer 1 becomes b + a. Remote viewing effect can be obtained from the location.

         In addition, the projectors used in these offices have a short lamp life, which causes frequent inconveniences of frequent replacements, and the lamp itself generates a lot of heat in a sealed space.

        Therefore, by adopting a small projector whose light source is composed of a semiconductor light source such as an LED or a diode laser, the semiconductor light source can be used for 3 to 10 times longer than a general lamp, so the lamp should be used at a sales place. It is possible to eliminate the need for frequent exchange, and in particular, solid state light sources such as LEDs and diode lasers are less than 1/10 of the heat of the conventional lamps, and thus are very practical for use in an enclosed space such as the present invention. to be.

       That is, in the present invention, such a projector has a disadvantage that the brightness is relatively low, which can be increased by the reflective screen described above.

     9 is a structure that can be viewed from both left and right sides. C inside the table 3 is the projection distance from the left projector 5a to the right screen 6b, and c1 is the projection distance from the right projector 5b to the left screen 6c.

       a1 is the viewing distance from the left screen 6c to the right viewer 1b. a is the viewing distance from the right screen 6d to the left viewer 1a.

      d is the length of the occupation area which the table 1 has.

        The left screen 6c and the right screen 6d are composed of three or more screens with reflective surfaces to realize three times more brightness than conventional screens, and when configured as a spherical screen, it is about 6-30 gains. Screen configuration is possible up to 6-30 times the brightness than conventional screens can be achieved.

       At this time, the focal length F due to the curvature of the spherical screen and the left and right projection distances a and a1 of the left and right projectors 5a and 5b should be configured as described in FIG. 8.

       The left and right screens 6c and 6d may be replaced by a flat screen such as an LCD monitor or a PDP monitor.

       Such a structure of the present invention allows the left and right viewers 1a and 1b facing the left and right sides of one table 3 to simultaneously display the same image or different images at the same time on the left and right sides of the table 3, respectively. You can watch through the screens 6c and 6d, respectively.

        That is, the left viewer 1a views the image projected on the right screen 6d from the left projector 5a at a distance separated by the left viewing distance a, and the right viewer 1b is viewed from the right projector 5b. The image projected on the left screen 6c is viewed at a distance separated by the right viewing distance a1.

       Since the left viewer 1a views the screen at a distance separated by the left viewing distance a, the viewer can see the image clearly and at the same time, the projection distance c of the left projector 5a is also secured.

      The right viewer 1b also secures the right viewing distance a1 and the right projection distance c1 by the same logic.

       Also in the projection distance, the left projector 5a is configured by overlapping the left projection distance c and the left viewing distance a with the right viewing distance a1 and the right projection distance c1 inside one case 3. In addition, the right projector 5b crosses the right projection distance c1 and the right viewing distance a1 on the left projection distance c and the left viewing distance a as described above. Within the area (d) of) to satisfy all the optical components are configured.

     That is, as shown in FIG. 9, the left and right projection distances c and c1 and the left and right viewing distances a and a1 are overlapped and secured within the length d of the area 3 of the one table 3, compared with the conventional structure. By reducing the area occupied by 1/2 to 1/4, the maximum throwing distance and the maximum viewing distance can be secured from both sides.

       Such a structure is provided with the left projector 5a from the upper left to the left and the right inside the table 3, the left reflector 7a at the bottom, and the left screen 6c at the bottom, as shown in FIG. Similarly, the upper right projector 5b, the lower right reflector 7b, and the lower right screen 6d are configured.

     In this configuration, the image of the left projector 5a is reflected by the right reflector 7b to form an image on the left screen 6c, which is viewed by the right viewer 1a and the image of the right projector 5b is the left reflector 7a. The image is reflected on the right screen 6d to be viewed by the left viewer 1b.

     That is, since the projection distance is reduced by half by the left and right reflectors 7a and 7b, the volume of the table 3 can be reduced to 1/2 of the structure of FIG. 9. .

     In addition, the positions of the left and right projectors 5a and 5b can be changed together with the left and right reflectors 7a and 7b inside the table 3.

      The effects of the present invention as described above will be described in detail with reference to FIGS. 11A and 11B.

         FIG. 11A is a diagram of a conventional imaging apparatus as shown in FIG. 1, and FIG. 11B is a comparison diagram for comparing the diagram of FIG. 4 according to the present invention at a glance.

          The occupied area of the table 3 of the present invention is d compared to the occupied area S2 of the conventional image box e.

        In the conventional image box (e), the position of the image plane 2 may not only be higher than the viewer's eye level in order to secure the projection distance of the projector.

        On the other hand, in the present invention, since the projection distance (c + b) is configured to be duplicated in the table 3, the viewing is possible downward and comfortable viewing is possible.

        Also in the total occupied area, in FIG. 11A, since the viewer 1 should be separated at least three times the size of the video screen 6, the occupied area per unit is very large as in S2.

        On the other hand, as shown in (b) of FIG. 11, the structure of the present invention provides a viewing distance up to 3 times as much as the viewing distance becomes c + a in front of the table 3, so that even within the area d of the table 3, You can watch the video and watch the entire screen. In addition, since the occupied area d of the table 3 of the present invention compared to the occupied area length s2 of FIG. 11 (a) is only 1 / 2-1 / 4, many devices can be installed more than 2-4 times. It is possible to increase profits 2-4 times in the same area of sales.

       In addition, according to the present invention, as shown in FIG. 9 and FIG. 10, the left and right viewers can simultaneously watch one image or each selected image simultaneously in the same table 3 and the brightness of the screen is compared with the conventional method. 3 to 30 times brighter images can be viewed simultaneously from a sufficient viewing distance from the left and the right, and at least three times the viewing distance and at least two times the projection distance can be secured at the minimum table (3) area.

     In addition, when using the high-reflection image screen (6) by forming a reflection surface or scattering surface in the vertical or horizontal direction, it is possible to view the bright and clear image in the vertical field of view more than three times wider than the viewer position by expanding the upper and lower viewing angle Therefore, it is possible to use low-intensity projectors using semiconductor light sources such as LEDs and laser diodes.

          In addition, the screen size by the projection distance also secures a projection distance of 2 times or more by mutually crossing the projection distance by the reflector inside the table (3) will be able to display a large screen of 2-4 times compared with the conventional.

          Conventional video equipment requires a separate video equipment and a separate table, but the present invention has the effect of combining the function of the video device at the same time with the table function by combining the video device in one table (3) It is possible

. The present invention has the advantage that the left and right viewers (1a, 1b) sitting on the left, right to view different images by using a video device such as a set-top box or a DVD (in this case, using headphones) or simultaneously viewing the same image When applying the present invention to the game device, the left and right viewers (1a, 1b) can play the same game or enjoy different games at the same time, in the case of sports games has the advantage of mutual games in one game have.

     In addition, the doctor can show the image to the patient in the hospital, or can be used for video briefing and 1: 1 English conversation education video device for customers, etc. at the information desk of the company, public office, and the like.

      In addition, in the above-described one-way or two-way viewing structure, a plurality of configurations of the projector 5 may be configured to watch a stereoscopic image.

    3, 4, 5, 6, 9, and 10, the number of the projectors 5 is composed of left and right plural numbers, and a polarization filter having a symmetrical polarization direction is attached to the front of each image. When projecting on the screen 6), stereoscopic image can be viewed.

     In particular, by constructing the reflective screen inside the table (3) and the structure of viewing it through the transparent window to block the external light as much as it can achieve more than twice the brightness and clarity effect.

Therefore, in the present invention, the present invention secures more than three times the viewing distance, more than two times the size of the large screen, and more than three times the clear images and stereoscopic images at a comfortable viewing angle in the occupied area of 1 / 2-1 / 4 in one direction or in both directions. It is a table-type large image device that is very effective in sports bars, cafes, and PC rooms because it has a breakthrough effect that can be viewed.

     In addition, it is very useful as a game machine, video listening device, and video guide desk that can be enjoyed simultaneously in both left and right directions, and is a large screen table image device that is very practical in cafes, sports, game halls, and government offices.

Claims (12)

In a table-type large-capacity video device having a large video device embedded inside a table      Configure the projector (5), the reflector (7) and the image screen (6) inside the case of the table (3).   The image screen 6 is composed of a front screen   The video screen (6) is provided on one side opposite the viewer inside the table (3)  The reflector 7 is configured on the other side of the image screen 6  The projector 5 is configured on the opposite side of the reflector 7 inside the table 3   A transparent window 4 is formed on the upper surface of the case of the table 2.  Viewer 1 is a large-sized table apparatus characterized in that the viewer through the transparent window (4) to watch the image of the video screen 6 configured opposite the table 3 inside The table-type large-capacity imaging device according to claim 1, comprising the configuration of an image screen 6 having a reflection screen of three gains or more and forming scattering lines 6b on the surface of the reflection screen. The table-type imaging device according to claim 1, wherein the projector 5 is constituted by a projector 5 having a light source of a semiconductor light source including an LED and a laser diode. The table-type large-capacity imaging device according to claim 1, characterized in that the projector (5) and the image screen (6) are constituted by a planar image screen (6) including a PDP and an LCD.    2. The table-type large-capacity imaging device according to claim 1, wherein the shape of the image screen 6 is composed of a spherical reflective screen and the surface reflectivity is 6 or more. The structure of claim 1, wherein the configuration of the projector 5  Polarizing films are respectively formed in front of the projection lens of the projector 5 Each of the projectors 5 projects the image taken on the left side and the image taken on the right side on the image screen 6, and the viewer 1 includes watching a stereoscopic image through polarized glasses. In a table-type large-capacity video device having a large video device embedded inside a table    The projector and the video screen are paired on one side of the table based on the center of one table.  On the other side of the table, a pair of projectors and video screens are constructed in a symmetrical structure with the projectors and video screens. A transparent window is formed on the upper surface of the center of the table The video screen is composed of a front screen Each viewer located on both sides of the table views a video of each image screen located across the inside of the table case through the transparent window. The method of claim 7,      Table-type imaging device characterized in that the structure of the left and right screens 6c and 6d is made up of 6 spherical or larger reflective spherical screens. 8. The table-type large-capacity imaging device according to claim 7, wherein the screen structure is composed of a flat image plate including an LCD and a PDP.  The table-type large-capacity imaging device according to claim 7, wherein a reflection mirror is added between the projector and the image screen. The table-type large-capacity imaging device according to claim 7, wherein the projector is composed of a projector using a semiconductor as a light source including an LED and a laser diode. delete

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