TWI468845B - Projection screen device - Google Patents

Description

Projection screen device

The present invention relates to an imaging device, and more particularly to a projection screen device for projection imaging.

In many exhibition venues, such as art galleries, lectures, etc., projections are often used to magnify the output image for more viewers to watch together, or to create special lighting effects. However, the current projection imaging method directly projects the projection beam of the projector onto a projection screen, and the projection screen is usually a screen or a wall surface, but the projection of the screen or the wall surface is formed. Curtains are usually fixed and there are no structural changes, so the only way to make the projected image produce light and shadow changes is to change the projection content. In addition, in the case of projection imaging, some art exhibition occasions hope to be able to project through the water to create special light and shadow effects, such as projection towards the river, but if the projection beam is directly directed at the water surface, the projection beam will usually be directly When injected into the water, the reflection imaging effect is very poor.

Accordingly, it is an object of the present invention to provide a new type of projection screen apparatus.

Therefore, the projection screen device of the present invention is suitable for projecting and projecting a projection beam of at least one projector, and comprises a carrier and at least one imaging body mounted on the carrier, the imaging body having at least one projection beam The imaging surface of the projected image.

The effect of the invention: through the structural design of the image forming body for projecting and projecting the projection beam on a carrier, the image of the projection beam can be projected onto the imaged body by using the undulating displacement of the imaging body or the displacement of the wind with the wind. Produce diverse changes.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.

As shown in FIG. 1 and 2, the first preferred embodiment of the projection screen device 3 of the present invention can be used for projection projection of a projection beam of a projector (not shown), and is suitable for floating on the water surface, but With the fluctuations of the water waves, or hanging in the air, but can be deformed with the wind.

The projection screen device 3 includes a flexible deformable carrier 31 and a plurality of image forming bodies 32 fixedly mounted on the carrier 31.

In this embodiment, the carrier 31 is a soft deformable mesh structure, and is formed by connecting a plurality of flexible deformable ropes or chains, having a plurality of meshes 311 extending through the front and rear and spaced apart, and a plurality of respectively A node 312 between the cells 311.

The image forming bodies 32 are respectively mounted and fixed on the carrier 31 and are respectively located in the meshes 311. The image forming body 32 is a hollow spherical floating body floating on the water surface, and is made of a light transmissive material, and has two front and back opposite sides and respectively located on opposite sides of the carrier 31, and can respectively provide the projection. The hemispherical imaging surface 321 of the beam projection image. In the present embodiment, the image forming bodies 32 are fastened to the carrier 31 via the ropes 33, but in practice, such The manner in which the imaging body 32 is fixed to the carrier 31 is not limited thereto, and adhesive bonding or other fixing means may also be employed.

When the projection screen device 3 is spread out on the water surface, the image forming body 32 is floated on the water surface, and if necessary, the four corners or the periphery of the carrier 31 can be fixed to the river bank by other tools to be shaped, or The anchor body (not shown) which is fixed to the four corners or the periphery of the carrier 31 and sinks to the bottom of the water is shaped. Then, the projector can project a projection beam toward the projection screen device 3, and reflect the projection beam through the imaging surface 321 of the imaging body 32 to form an image.

Since the carrier 31 is flexibly deformed, and the image forming bodies 32 are undulating and drifting with the water surface, the entire projection screen device 3 can be deformed according to the fluctuation of the surface wave, thereby enabling the projection image to be imaged at the dot-like intervals. The image of the surface 321 is changed, and the imaging surface 321 of the imaging body 32 is spherical. During the displacement of the imaging body 32 with the wave, the reflection direction of the projection beam can be further changed to make a projection. The image imaged on the projection screen device 3 produces a richer variation. And because the image forming bodies 32 are permeable to light, a portion of the projected light beam enters the image forming body 32 and is permeable from the image forming body 32, so that the entire image forming body 32 is bright and can be in the water. Create a special light and shadow effect.

When the projection screen device 3 is hung in the air, the mesh carrier 31 can be suspended and suspended by a hanging tool (not shown), so that the carrier 31 is naturally suspended and can be deformed with the wind. The image projected by the projector on the imaging body 32 will have an interesting change with the drift of the imaging body 32, which is different from the monotonic imaging effect of the general projection screen. In addition, Because the image forming bodies 32 are permeable to light, the projection beam penetrating into the image forming bodies 32 will be transmitted from the other imaging surface 321 and projected on the other imaging surface 321 of the imaging bodies 32. Therefore, it will further present special projection effects or light effects.

In the present embodiment, the image forming bodies 32 are hollow spherical floating body structures and are light transmissive materials, but in practice, it is not necessary to transmit light, and the two image forming bodies 32 are The opposite imaging planes 321 can be separately used for projection imaging by different projectors. At this time, the imaging body 32 is not necessary to have a hollow spherical shape, and other shape structure designs can be adopted, and when the projection screen device 3 is only applied In the case of hanging, the image forming bodies 32 are not required to be floating bodies.

In addition, it should be noted that the imaging surface 321 of the imaging body 32 of the present embodiment adopts a spherical structure design in order to create a special projection imaging effect, but in implementation, the imaging surface 321 can also be modified. Other curved shapes, such as wavy surfaces, elliptical surfaces, curved curved surfaces, etc., are not necessarily designed to be spherical or curved, but may be only planar, such as hexagonal planes, circular planes, etc. The shape of the image forming body 32 is not limited to a spherical shape, and the imaging surface 321 of the image forming body 32 may be displaced by the displacement of the carrier 31 with the water wave or the structure of the wind swinging to generate a projected image. The change. The carrier 31 can also be designed as a porous network of rigid non-deformable structures, using only the floating or oscillating motion of the imaging bodies 32 to produce a projected imaging change.

Furthermore, as shown in FIG. 3, the image forming bodies 32 may also be disposed at the nodes 312 of the carrier 31 when implemented.

As shown in FIG. 4, a second preferred embodiment of the projection screen device 3 of the present invention The only difference from the first preferred embodiment is that the carrier 31 is structurally designed. For convenience of explanation, only the differences between the present embodiment and the first embodiment will be described below.

In the present embodiment, the carrier 31 is designed in the form of a curtain structure, and includes a plurality of elongated strips 313 arranged in parallel at intervals, and a connecting member 314 connected between the opposite ends of the curtains 313. The curtains 313 are soft deformable structures, which are also oscillating with the wind and fluctuating with waves, such as ropes or chains. The link 314 can be a rigid structure, such as a rod, or a flexible, flexible structure such as a rope, chain, or the like.

The image forming bodies 32 are respectively mounted on the curtains 313, and are respectively arranged along the longitudinal direction of the curtains 313 at the side of the curtain 313, and the image forming bodies 32 are swingable relative to the curtains 313. Mounted on the curtain 313, but in practice, the image forming bodies 32 can also be designed to be fixed to the curtain 313 in a non-movable or oscillating manner.

When the projection screen device 3 of the embodiment is used on the water surface, it can also be spread over the water surface, and the free ends of the curtains 313 are extended toward the water flow direction, and the imaging can also be performed by floating on the water surface. The design of the body 32 will vary with the fluctuation of the water wave, causing the image of the projected image to change, and since the curtains 313 will move alone, the changes will be more diverse. When the projection screen device 3 is suspended for use, the hanging tool can be mounted on the connecting member 314 so that the curtains 313 are naturally suspended, and the image forming body 32 can also follow the curtain 313. The way the wind blows and floats to produce special projection image changes.

In addition, when implemented, the curtains 313 of the carrier 31 can also be modified. The non-deformable structure design, such as steel bars, bamboo rafts, wood poles, etc., and the image forming bodies 32 are swingably disposed on the curtains 313, and can be displaced only by the oscillation of the image forming bodies 32. To produce a projected imaging change.

In summary, the structural design of the imaging body 32 for projecting and projecting the projection beam is disposed on the mesh carrier 31 or the curtain carrier 31, and the imaging body 32 can be used to displace the wave with the wave, or The image of the image forming body 32 is shifted by the manner in which the carrier 31 is oscillated by the wind, and the image of the projection beam is projected by the displacement of the image forming body 32. Moreover, the design of the shape of the imaging surface 321 of the image forming body 32 can further further produce a special light and shadow effect, which is a new structural design of the projection screen device 3. Therefore, the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

3‧‧‧Projection screen device

31‧‧‧ Carrier

311‧‧‧ mesh

312‧‧‧ nodes

313‧‧ ‧ curtain strip

314‧‧‧Links

32‧‧‧ imaging body

321‧‧‧ imaging surface

33‧‧‧ rope

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front elevational view of a first preferred embodiment of a projection screen apparatus of the present invention, illustrating a plurality of image forming bodies respectively disposed in a plurality of meshes of a carrier; Figure 2 is a portion of the first preferred embodiment 3 is a view similar to FIG. 1 illustrating a case where an image forming body is disposed on a node of a carrier; and FIG. 4 is a front side view of a second preferred embodiment of the projection screen device of the present invention; Figure.

3‧‧‧Projection screen device

31‧‧‧ Carrier

311‧‧‧ mesh

312‧‧‧ nodes

32‧‧‧ imaging body

321‧‧‧ imaging surface

33‧‧‧ rope

Claims (8)

A projection screen device is suitable for projecting and imaging a projection beam of at least one projector, and comprises: a carrier, a porous mesh structure, and having a plurality of meshes running through the front and rear, and a plurality of meshes respectively located in the meshes And a plurality of image forming bodies respectively mounted in the meshes of the carrier or the nodes, and each having at least one imaging surface for projecting the projection beam. The projection screen apparatus of claim 1, wherein the carrier is a flexible deformable or rigid non-deformable porous mesh structure. The projection screen device of claim 1 or 2, wherein the image forming bodies are floating bodies that are floatable on the water surface, respectively. The projection screen device of claim 3, wherein the image forming bodies are respectively hollow permeable floating bodies. The projection screen device of claim 1 or 2, wherein the image forming bodies are respectively permeable hollow spheres, and the image forming bodies respectively have two opposite sides and are respectively located opposite to the carrier. Side, and an imaging surface for imaging projection of the projection beam, respectively. A projection screen device, suitable for projecting and projecting a projection beam of at least one projector, and comprising: a carrier comprising a plurality of spaced apart strips; and a plurality of imaging bodies respectively mounted at intervals And the curtains are respectively arranged along the length direction of the curtains, and respectively have at least one imaging surface for projecting and imaging the projection beam. The projection screen apparatus of claim 6, wherein the curtains are flexible and bendable flexible structures. The projection screen apparatus of claim 6, wherein the curtains are rigid non-deformable structures.