Image projection apparatus

Abstract

To solve such a problem that, in conventional techniques, a projection screen is installed inside a bathroom, however, it is required to secure a relatively large space for installation, and the projection screen remains deployed even when images are not viewed.SOLUTION: An image projection apparatus that projects an image that may be viewed from inside a bathroom equipped with a transparent door includes a translucent projection screen that is vertically movable on the outer side of the transparent door of the bathroom. A projector that projects a laterally reversed image onto the translucent projection screen is mounted on a ceiling outside the bathroom. The image projected onto the translucent projection screen is configured to be viewable from inside the bathroom.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an image projection device that allows a projected image to be viewed from within a bathroom. [Background technology]

[0002] Many devices have been proposed for viewing images projected onto a projection screen in a bathroom. In conventional devices, the projection screen is installed inside the bathroom, but the projector that projects the images is installed outside the bathroom to isolate it from the humidity inside the bathroom. For this reason, a transparent glass or the like is installed in a part of the bathroom, and the projection light is irradiated from outside the bathroom into the bathroom through the glass, and projected onto the projection screen (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7216458 (Figure 3) Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional system described above, the projection screen is installed in the bathroom, but a relatively large area needs to be secured for installation, and there is a problem in that the projection screen remains deployed even when the image is not being viewed.

[0005] On the other hand, in recent years, in order to increase the sense of openness in living spaces such as living rooms, or to allow parents to supervise children when bathing alone, there have been proposals to connect the bathroom directly to living spaces such as living rooms and to install a bathroom door made of clear glass so that the inside of the bathroom can be seen.

[0006] In view of the above problems, the present invention has an object to provide an image projection device in which a projection screen and a projector are installed outside the bathroom, the image projected onto the projection screen can be viewed from inside the bathroom, and the projection screen can be stored when not in use. [Means for solving the problem]

[0007] In order to solve the above problems, the image projection device of the present invention is characterized in that, in the image projection device that projects an image that can be viewed from inside a bathroom equipped with a transparent door, a translucent projection screen that can be raised and lowered is provided on the outside of the transparent door relative to the bathroom, and a projector that projects a left-right inverted image onto the translucent projection screen is attached to the ceiling outside the bathroom, so that the image projected onto the translucent projection screen can be viewed from inside the bathroom.

[0008] The projection screen is installed outside the bathroom and can be raised and lowered freely. The projection screen is also made translucent so that it can be viewed from the opposite side of the projector, that is, from the bathroom side. The image can be reversed left and right to view the original image.

[0009] However, since the image will be viewed through a transparent door of the bathroom, it is desirable to apply an anti-fogging treatment to the inside surface of the bathroom door.

[0010] In order to prevent the projection screen from swaying due to wind or other factors when it is unfolded, it is desirable to provide a holding mechanism for holding the lower end of the light-transmitting projection screen when it is lowered to a specified position.

[0011] For example, the door of the bathroom faces the living room, which is a dwelling space.

[0012] In addition, it is desirable for the bathroom to be dark when watching images from the bathroom side, so it is desirable for the bathroom to be equipped with a window facing the outdoors, with a light-blocking curtain that blocks light entering the bathroom from the window being set up to automatically open and close, and for the light-blocking curtain to close in conjunction with the downward movement of the light-transmitting projection screen, thereby blocking light entering the bathroom from the outdoors.

[0013] In addition, as described above, when the bathroom is adjacent to the living room, there may be cases where people in the living room also want to view the image. In this case, a light-blocking projection screen that can be raised and lowered may be provided outside the door of the bathroom in addition to the light-transmitting projection screen, and the projector may project an image that is not reversed left and right onto this light-blocking projection screen when the light-blocking projection screen is lowered. Effect of the Invention

[0014] As is clear from the above description, in the present invention, a projection screen that can be raised and lowered is provided on the outside of the bathroom door, and images are viewed through this transparent door, so there is no need to reserve a dedicated space for the projection screen in the bathroom. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 shows a configuration of an embodiment of the present invention. [Diagram 2] Cross-section of the bathroom door [Diagram 3] A diagram showing the mechanism for holding the bottom edge of the projection screen [Figure 4] Diagram showing bathroom and living room remote controls [Diagram 5] FIG. 1 is a diagram showing a configuration of another embodiment of the present invention; [Figure 6] A diagram showing the mechanism that holds the bottom edge of the projection screen by magnetic force. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Referring to Figure 1, 1 is a transparent door to a bathroom BL, which is equipped with a bathtub BT and a window W facing the outdoors. The door 1 is formed as a pair on the left and right, and is a so-called sliding door with transparent glass fitted on the entire surface.

[0017] Also referring to FIG. 2, the bathroom BL is adjacent to the living room LR, and there is no separate space between the bathroom BL and the living room LR, such as a dressing room. Two rolls 2, 2a on which a projection screen is wound are attached to the upper part of the door 1. Motors (not shown) are built into both reels 2, 2a, and the wound screen is lowered by unwinding it, and is wound up inside the rollers by winding it up, so that it rises. A light-transmitting projection screen 22 is wound around the roll 2 provided at the top, and a bar 21 is attached to the lower end of the light-transmitting projection screen 22. A light-shielding projection screen 22a is wound around the other roll 2a, and a bar 21a is attached to the lower end of the light-shielding projection screen 22a.

[0018] On the light-transmitting projection screen 22, when an image is projected from the projector 3, the image can be viewed from the side onto which it is projected, but the image can also be viewed from the opposite side, which in this embodiment is the bathroom BL side. In contrast, the light-blocking projection screen 22a allows images to be viewed only from the side onto which the projector 3 projects.

[0019] The surface 1a of the door 1 facing the bathroom has been treated with an anti-fogging process. This anti-fogging process keeps the surface 1a facing the bathroom from fogging up, and even if water droplets adhere to the surface 1a, they do not immediately spread along the surface 1a and form droplets. Therefore, the image projected onto the light-transmitting projection screen 22 through the door 1 can be viewed from the bathroom BL side.

[0020] A light-blocking curtain 5 is attached to the window W, and the light-blocking curtain 5 is automatically pulled out to block light from entering the bathroom BL through the window W. Reference numeral 6 denotes a light for the bathroom.

[0021] A pair of holding mechanisms 4 are provided on the left and right below the door 1. The holding mechanism 4 is provided with an arm 41 that can move in and out on the living room LR side, and holds the bar 21 at the bottom end of the light-transmitting projection screen 22 or the bar 21a at the bottom end of the light-blocking projection screen 22a when the bar 21 is at the bottom end position of the light-blocking projection screen 22a. The arm 41 is held so as to be able to swing by a pivot 42, and is configured so that the arm 41 moves in and out on the living room LR side by pushing and pulling the connecting part 43 of the link in the direction A. An actuator (not shown) for swinging the arm 41 is provided on the line A.

[0022] With reference to FIG. 4, in this embodiment, two remote controls are provided: a bathroom remote control 7 and a living room remote control 8. When the power button 71 of the bathroom remote control 7 is pressed, a signal is sent to a controller not shown in the figure, and the light-transmitting projection screen 22 is first unrolled from the roll 2. At the same time, the light-shielding curtain 5 provided on the window W moves to the light-shielding position. Then, the brightness of the light 6 is reduced. When the light-transmitting projection screen 22 descends, the bar 21 at the bottom end is held down by the arm 41. Then, a left-right inverted image is projected from the projector 3. The bathroom remote control 7 is provided with a button 72 for moving the screen up and down, an image inversion button 73, and a button 74 for adjusting the brightness of the light, all of which are used for manual operation. When the power button 71 is pressed as described above, the above-mentioned multiple operations are automatically operated by a controller not shown in the figure. Also, which operations are to be performed automatically can be freely set by a smartphone, tablet PC, or the like. Then, when viewing of the image is finished, the power button 71 is pressed again to reverse the above-mentioned operations and return to the original state.

[0023] Furthermore, when it is desired to view an image in the living room LR, pressing the power button 81 on the living room remote control 8 unrolls the light-blocking projection screen 22a wound on the roll 2a, and the lower end bar 21a is held by the arm 41, and an image that is not inverted left to right is projected from the projector 3. When viewing is finished, pressing the power button 81 again reverses each operation and returns to the original state. Note that each of the above operations is also controlled by a controller (not shown), and the automatically controlled operations can be freely selected, as described above. Also, buttons 82 and 83 are for manual operation, and do not necessarily need to be operated when operating automatically.

[0024] Next, another embodiment of the present invention will be described with reference to Figures 5 and 6. S is an opening formed between two rooms R-1 and R-2, which connects the two rooms R-1 and R-2. This opening S is provided with a number of sliding doors, which are closed when closed. In this figure, all of the sliding doors are stored behind the wall panel P and are not shown. Also, although not shown, a projector similar to the above-mentioned projector 3 is attached to the ceiling of one of the rooms R-1 and R-2.

[0025] A roll 2 identical to the roll 2 described above is disposed above the opening S. In this drawing, the roll 2 is disposed on the side of the living room R-1, but it may be disposed on the side of the living room R-2. The above-mentioned translucent projection screen 22 is wound around this roll 2. When the translucent projection screen 22 is unwound from the roll 2, the opening S is partitioned by the translucent projection screen 22, but a space is secured between the bar 22 provided at the lower end of the translucent projection screen 22 and the lower edge of the opening S to allow the passage of a self-propelled vacuum cleaner, known as a robot vacuum cleaner.

[0026] The projector projects an image onto the light-transmitting projection screen 22, but when the projected image is viewed from the living room R-1 side, the image is not inverted left to right. When the image is viewed from the real / imaginary R-2 side, the image is inverted left to right by a remote control (not shown).

[0027] In addition, in order to prevent the light-transmitting projection screen 22 from moving due to wind or the like when the light-transmitting projection screen 22 is in an extended state, the end 21a of the lower bar 21 is fixed by magnetic force. Both end portions 21a are made of a magnetic material that is attracted by a magnet.

[0028] For the end 21a on the right side in the figure, a step 9 is provided in the wall plate P with which the left end face of the end 21a engages, and a permanent magnet 91 is embedded in the wall plate P. With this configuration, the movement of the right end 21a to the left in the figure is restricted, and it is attracted to the wall plate P and does not move.

[0029] In the figure, a recess 21b is formed in the end surface of the left end 21a, and when it descends to a predetermined position, a permanent magnet 92 that is horizontally movable is drawn by magnetic force into a storage hole H formed in the wall WO on the side of the living room R-1, and is attracted to the end 21a. A protrusion 92a is formed at the tip of this permanent magnet 92 so as to fit into the recess 21b. Therefore, when the permanent magnet 92 is attracted to the left end 21a, the end 21a is centered by the permanent magnet 92.

[0030] Since the permanent magnet 92 is biased in a direction that draws it into the storage hole H, when viewing is finished and the light-transmitting projection screen 22 is rolled up, the adhesion to the left end 21a is released and the permanent magnet 92 is stored in the storage hole H by the biasing force.

[0031] The present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0032] 1 Door 2 rolls 2a Roll 3. Projector 4 Retention mechanism 5. Blackout curtains 7 Bathroom remote control 8. Living room remote control 9 steps 21 Bar 21a Bar 22 Translucent projection screen 22a Light-blocking projection screen 41 Arm 91 Permanent Magnets 92 Permanent Magnets BL Bathroom LR living room R-1 Room R-2 Room S opening W Window

Claims

1. This image projection device projects an image that can be viewed from inside a bathroom equipped with a transparent door, and is characterized in that a translucent projection screen that can be raised and lowered is provided outside the transparent door relative to the bathroom, a projector that projects an image that is inverted left and right onto the translucent projection screen is attached to the ceiling outside the bathroom, and the image projected onto the translucent projection screen can be viewed from inside the bathroom.

2. 2. The image projection device according to claim 1, wherein an inner surface of the bathroom door is treated with an anti-fogging treatment.

3. 3. The image projection device according to claim 1, further comprising a holding mechanism for holding the lower end of the light-transmitting projection screen when the lower end of the light-transmitting projection screen is lowered to a predetermined position.

4. 3. The image projection device according to claim 1, wherein the door of the bathroom faces the living room.

5. 3. The image projection device according to claim 1 or 2, characterized in that the bathroom is provided with a window facing the outdoors, and a light-blocking curtain that blocks light entering the bathroom from the window is provided to automatically open and close, and when the light-transmitting projection screen is lowered, the light-blocking curtain is closed in conjunction with the window to block light entering the bathroom from the outdoors.

6. The image projection device according to claim 4, characterized in that, in addition to the light-transmitting projection screen, a light-blocking projection screen that can be raised and lowered is provided further outside the bathroom door, and the projector projects an image that is not reversed left and right onto this light-blocking projection screen when the light-blocking projection screen is lowered.

7. This video projection device projects an image onto an opening formed between two adjacent rooms that communicates the two rooms, the video projection device comprising: a translucent projection screen that can be rolled up to separate the opening, provided above the opening; a projector that projects an image onto the translucent projection screen, attached to the ceiling of one of the two rooms; and a video projection device that can be configured to reverse the image projected by the projector as desired.

8. 8. The image projection device according to claim 7, further comprising a holding mechanism that holds the lower end of the translucent projection screen by magnetic force in a state in which a space is secured between the lower edge of the opening and the translucent projection screen when the translucent projection screen is extended, allowing a self-propelled vacuum cleaner to pass through freely.

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