JP2016136196A - Projection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable variously changing advertisements outdoors, to eliminate the restriction of an installation place as much as possible, and to ensure stable operations.SOLUTION: A projection device comprises: a projector 2; an image converter 3 for converting an image enlarged and projected from the projector into a non-enlarged image that is regarded as a luminous flux having a predetermined cross section; an image guide tube 4 that is connected to the image converter and that guides the non-enlarged image converted by the image converter while it is shielded from outer light; and a projector 5 that is mounted at an end of the image guide tube and that enlarges and projects the non-enlarged image guided to the end of the image guide tube.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a projection apparatus that projects an image projected from a projector to a target position.

This type of projection apparatus is disclosed in Patent Document 1, for example.
In this projection apparatus, a projector is arranged opposite to a signboard installed outdoors, and an image is projected onto the signboard by the projector.

  The amount of information notified by the signboard can be greatly increased by changing the advertising content on the signboard with such a projection device.

JP 2005-266190 A

  By the way, in the above-described conventional projection apparatus, the notation of the signboard installed outdoors can be changed to enhance the notification effect. However, the following problems to be improved remain.

  That is, in the above-described technique, the projector itself is installed outdoors, but depending on the situation around the projection surface, the installation location of the projector may not be ensured.

  Since the projector has a heat source, it is necessary to efficiently remove heat generated from the heat source in order to ensure stable operation of the projector.

  However, when the projector is installed outdoors, it is difficult to remove the heat described above depending on the climate, and it is necessary to install new equipment to perform forced cooling, resulting in an increase in cost. .

On the other hand, the size of the projected image of the projector is determined by the focal length of the lens mounted on the projector.
In other words, since it is determined by the distance between the projector and the projection surface (that is, the signboard), the distance between the signboard and the projector is determined by the size of the signboard.
Moreover, in order to project on the signboard, it is preferable that the projector is installed in front of the signboard as much as possible.

  Therefore, the installation position of the projector is determined by the size of the signboard, and there is not much freedom.

  Further, the installation position of the projector set as described above is not necessarily a place suitable for installation, and it is difficult to install, for example, on a road or in a third party site. Can be a place.

  On the other hand, even if the installation position of the projector can be ensured, the signboard is not necessarily in a position suitable for the conditions that can be projected by the projector, or it is assumed that there is no signboard to be applied. It is narrowed.

  On the other hand, the above problem has been considered in the case of projecting on a signboard. However, the same problem arises when the signboard is replaced with a screen and contents such as movies are controlled.

  In order to solve the above-described problems, the projection device of the present invention includes a projector, a video converter that converts an image projected from the projector into a non-enlarged image with a light beam having a predetermined cross section, and the image A video guide tube connected to a converter and guiding the non-enlarged video converted by the video converter in a state of being shielded from external light, and a video guide tube attached to a terminal portion of the video guide tube. And a projector that projects the non-enlarged image guided to the end portion of the tube while enlarging it.

  With this configuration, an image output from the projector is converted into a non-enlarged image by the image converter to be a predetermined light flux, and then guided to the projector through the image guide tube. , And projected through this projector.

  Therefore, the projector can be installed away from the projector by the video guide tube, and the degree of freedom of the installation position of the projector is increased.

  Accordingly, the projector can be installed in a place where the cooling action is easily obtained, or can be installed in a place that is not easily affected by the climatic conditions, and the performance degradation of the projector due to overheating can be suppressed. it can.

  And by arranging the projector against an outdoor signboard, the signage of the signboard can be changed to enhance its advertising function, and the projector can be installed on the wall of an outdoor building The wall of the building can be used as an advertising means by disposing it facing the wall.

  On the other hand, by arranging the projector indoors in the building, arranging the video guide tube through the outer wall of the building, and connecting the projector to the indoor side end of the video guide tube, The projector can be positioned in a well-conditioned space to efficiently suppress overheating.

  In addition, since the existing building equipment is used, the rise in the protection equipment for the projector can be minimized.

Further, the projector is arranged in one of a plurality of rooms of a building, and the video guide tube connected to the projector is divided into a room separating the room where the projector is installed and an adjacent room. It can also be penetrated and piped to this adjacent room.
The partition may be an inner wall or a slab.

  By adopting such a configuration, it is possible to project content such as a movie in adjacent rooms on the same floor or rooms on the lower floor.

  Further, a plurality of the video guide tubes are connected so that their axis intersects, and the non-enlarged video guided from one video guide tube is sent to these connecting portions in the axial direction of the other video guide tube. By providing the direction changer, the projection apparatus can be installed while avoiding obstacles, and the application range can be greatly expanded.

  According to the projection apparatus of the present invention, it is possible to eliminate the restriction of the installation location as much as possible and to ensure stable operation.

It is a side view which shows the structural member of the projection apparatus of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates a first embodiment of the present invention, and is a longitudinal sectional view illustrating a form in which a projector is installed indoors and projected on an outer wall of a building. The 2nd Embodiment of this invention is shown and it is a longitudinal cross-sectional view which shows the form which installed the projector indoors and projected on the signboard provided in the outer wall of a building. The 2nd Embodiment of this invention is shown and it is a longitudinal cross-sectional view which shows the form which installed the projector indoors and projected on the signboard installed in the upper part of a building. It is a longitudinal cross-sectional view which shows 3rd Embodiment of this invention. It is a longitudinal cross-sectional view which shows 4th Embodiment of this invention.

First, the structural member of this invention is demonstrated with reference to FIG.
In FIG. 1, reference numeral 1 denotes a projection apparatus according to the present embodiment. This projection apparatus 1 is a non-enlarged image in which a projector 2 and an image projected from the projector 2 are enlarged and light beams having a predetermined cross section are used. A video converter 3 that converts the image to the video converter 3, a video guide tube 4 that is connected to the video converter 3 and guides the non-enlarged video converted by the video converter 3 from outside light, and A projector 5 that is attached to the end portion of the image guide tube 4 and projects the non-enlarged image guided to the end portion of the image guide tube 4 while enlarging it, and the non-guide guided by the image guide tube 4. It is comprised by the direction converter 6 which changes the guidance direction of an enlarged image.

  The projector 2 includes a projection lens 7 for enlarging and projecting an image sent from a personal computer (not shown), and the image converter 3 is connected to the projection lens 7 via a coupler 8. Yes.

  The video converter 3 is constituted by a lens having an optical characteristic opposite to that of the projection lens 7 and is connected to the video guide tube 4 via a coupler 9 provided at one end of the video guide tube 4. It is like that.

The video guide tube 4 has an inner diameter that does not cause interference with the non-enlarged video that travels straight, and is formed of a metal or resin having a small amount of thermal expansion and contraction and thermal conductivity.
The image guide tube 4 is made of a light-shielding material to prevent outside light from affecting the non-enlarged image passing through the inside.

  The projector 5 is constituted by a lens having substantially the same optical characteristics as the projection lens 7 attached to the projector 2, and the video guide tube 4 or the direction via a coupler 10 provided at one end. It is connected to the converter 6.

  In this embodiment, the direction changer 6 uses an elbow tube bent at 90 °, and a mirror 11 for bending the incident non-enlarged image by 90 ° is mounted on the inside thereof. .

  Couplers 12 and 13 are provided at both ends of the direction changer 6, respectively, and the video guide tube 4 is connected via the couplers 12 and 13.

  A plurality of the video guide tubes 4 and the direction changers 6 are used as necessary.

  A first embodiment in which projection is performed on the outer wall of a building using such components will be described with reference to FIG.

  A through-hole is formed in the outer wall of the building indicated by symbol B in FIG.

  And the projector 2 is installed indoors in the building B, and the end portion of the video guide tube 4 that is inserted through the void tube 14 and penetrates the outer wall is positioned indoors. In addition, the video converter 3 is mounted, and the video converter 3 is connected to the projection lens 7 of the projector 2 via the coupler 8.

On the other hand, the direction changer 6 is connected to an outer end portion of the video guide tube 4 disposed through the outer wall.
This direction changer 6 is fixed so that the irradiation direction is directed upward, and is connected to another video guide tube 4 arranged along the vertical direction.

  Another direction changer 6 is connected to the upper end of the other video guide tube 4 arranged along the vertical direction so that one end thereof faces the outer wall. The projector 5 is connected to an end facing the outer wall.

  The projection apparatus 1 according to this embodiment installed in this manner projects a video from the projection lens 7 of the projector 2, and after this video is converted into a non-enlarged video by the video converter 3, The outer wall is enlarged while being enlarged in the projector 5 connected to the image guide tube 4, the lower direction changer 6, the vertical image guide tube 4, and the upper direction changer 6 and connected to the direction changer 6. Projected on.

  Thereby, advertisements that change sequentially are displayed on the outer surface of the outer wall of the building B, and this outer wall functions as a signboard.

  In addition, at night, the outer wall is illuminated by the light of the projected image, so that the visibility is enhanced, thereby greatly enhancing the notification function.

  On the other hand, by adjusting the length of each video guide tube 4, the position of the projector 5 with respect to the outer wall can be adjusted, so that the degree of freedom of the installation position of the projector 2 is increased.

  Further, as in the present embodiment, the projector 2 can be installed indoors, and the projector 2 can be cooled using the existing air-conditioning equipment installed in the building B, with low cost. Thus, the operating environment of the projector 2 can be improved.

  FIG. 3 shows a second embodiment of the present invention, in which a signboard 15 is provided on the outer surface of the building B and projection is performed on the signboard 15.

  By adopting such a configuration, advertisement by notation of the signboard 15 can be performed in the daytime, and advertisement by video can be performed in the nighttime, so that the signboard 15 can be multifunctional.

  The various shapes, dimensions, and the like of the constituent members shown in the embodiments are merely examples, and various changes can be made based on design requirements and the like.

  For example, as shown in FIG. 4, the sign 15 can be installed on the roof of the building B and projected onto the sign 15.

  In addition, a plurality of projectors 5 having different focal lengths are prepared, and by selectively using these projectors 5, the projected area by the projector 5 is adjusted, so that the projected signboard Can correspond to the size.

  Then, as shown in FIG. 5, the video guide tube 4 is disposed through the inner wall W of adjacent rooms on the same floor, and the projector 2 is connected to the video guide tube 4 in one room, Alternatively, the projector 5 may be mounted in the other adjacent room, and an image may be projected onto the screen C installed in the other room.

  Further, as shown in FIG. 6, the image guide tube 4 is disposed through a slab S that divides the upper and lower floors, and the projector is disposed in the image guide tube 4 in one room (upper floor room in the illustrated example). 2 is connected, and the projector 5 is mounted in the other room adjacent to the room (lower room in the illustrated example), and an image is projected onto the screen C installed in the other room. You can also

  In these projection forms, since it is rare to provide a signboard in the room, it can be used when projecting content such as a movie.

DESCRIPTION OF SYMBOLS 1 Projector 2 Projector 3 Video converter 4 Video guide tube 5 Projector 6 Directional converter 7 Projection lens 8 Coupler 9 Coupler 10 Coupler 11 Mirror 12 Coupler 13 Coupler 14 Boyd tube 15 Signboard B Building S Slab W Inner wall

Claims (8)

  A projector, a video converter that converts an image projected from the projector into a non-enlarged image having a predetermined cross section, and the video converter connected to the video converter and converted by the video converter An image guide tube that guides a non-enlarged image while being shielded from external light, and a non-enlarged image that is attached to the end portion of the image guide tube and is guided to the end portion of the image guide tube A projection apparatus comprising: a projector for projecting.   The projection device according to claim 1, wherein the projector is disposed to face an outdoor signboard.   The projection device according to claim 1, wherein the projector is disposed so as to face a wall of an outdoor building.   The projector is disposed indoors in a building, the video guide tube is disposed through an outer wall of the building, and the projector is connected to an indoor side end of the video guide tube. The projection apparatus according to any one of claims 1 to 3.   The projector is arranged in one of a plurality of rooms of a building, and the video guide tube connected to the projector penetrates a partition that separates a room where the projector is installed from an adjacent room. The projection apparatus according to claim 1, wherein the projection apparatus is piped to the adjacent room.   The projection apparatus according to claim 5, wherein the partition is an inner wall.   The projection apparatus according to claim 5, wherein the partition is a slab. A plurality of the video guide tubes are connected so that their axis lines intersect, and the direction change is made so that the non-enlarged image guided from one guide tube is sent to these connecting portions in the axial direction of the other guide tube. The projection apparatus according to claim 1, wherein a projector is provided.