JPH0353289A - Multivideo projector system - Google Patents

Abstract

PURPOSE:To obtain a visually integrate screen by providing plural projection units with one sheet of screen from a different unit. CONSTITUTION:Video light emitted from a video projecting unit 101 is obtained as a video on an integral screen 309. The video projecting unit 101 and a box shielding outside light are formed into one body to form a projection unit 220. Plural projection units 220 are arranged to constitute the multivideo projector system. The screen 309 is not included in the projection unit 220, and a unit obtained by integrally forming a specific number of projection units 220 is used for the screen. Consequently, a screen boundary parting the screen 309 is eliminated to improve a sense of integration of the screen.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a multi-video projector system.

[Conventional technology A multi-video projector is a system in which multiple image displays are arranged side by side and integrated to function as a single image display.

Image displays currently in practical use can be broadly divided into CRT and liquid crystal displays, each of which has a direct viewing method and a projection method. In the case of a CRT direct viewing tube,
Although CRT is the oldest of these, it is a vacuum tube, and it is difficult to make a completely flat fluorescent screen.
It is also difficult to make the peripheral part completely straight. Therefore, in the case of a multi-vision screen, each individual screen has its own curvature, and the joints between the screens do not match, so a sense of unity cannot be obtained when using a multi-vision screen. Even if a direct viewing method of liquid crystal is adopted, since the liquid crystal panel has a mounting board around the effective screen, it is impossible to eliminate the connection between the screens.

However, when using a projection television, the images are projected onto a screen, so the screen can be flat, and the edges of the screen can also be made straight, making it possible to make the joints considerably smaller. This means that we have made some improvements to boundaryless technology.

The multi-video projector system that is currently in practical use integrates a part of the projector and a screen part to create a unit, which is then lined up to construct a multi-video projector system. However, with this method, the screen surface is divided into units, resulting in a grid-like screen border in a multi-video projector system, making it impossible to achieve a sense of unity on the screen. [Problems to be Solved by the Invention] However, in the conventional multi-video projector system, a part of the projector and a screen part are integrated to form a unit, and the units are arranged side by side to construct a multi-video projector system. However, with this method, the screen surface is divided into units, resulting in grid-like screen boundaries in multi-video projector systems, which poses the problem of not achieving a sense of unity as a screen. Therefore, in order to solve such problems, the present invention provides a multi-video projector system configured using a plurality of video projectors each consisting of an image projection unit and a screen, in which a separate The purpose is to provide a sense of unity as a screen by providing a single screen, which is a unit.

[Means for Solving the Problems] A multi-video projector system of the present invention is a multi-video projector system configured using a plurality of video projectors each including at least an image projection unit and a screen. However, it is characterized by having one screen, which is a separate unit.

Hereinafter, the details of the present invention will be shown by examples.

[Example] Example 1 FIG. 1 is a schematic diagram of a multi-projector system of the present invention. Image light projected from the image projection unit 101 is obtained as an image on the integrated screen 309.

A projection unit 220 is integrated with an image projection unit and a box for preventing external light. A plurality of projection units are arranged side by side to constitute a multi-video projector system, but the screen 309 is not included in the projection units, but is an integrated screen 309 for the number of projection units. This made it possible to eliminate screen boundaries that partitioned the screen.

FIG. 2 is a three-dimensional diagram of the multi-video projector system of the present invention. Image light projected backward from the image projection unit 101 is reflected by the reflection mirror 200 and guided forward.

The projection unit 220 is an integrated unit of the image projection unit 101, the reflection mirror 200, and a box for preventing external light. Although a plurality of projection units are arranged to constitute a multi-video projector system, the screen 309 is not included in the projection units, but is used as a single unit for the number of projection units. This made it possible to eliminate screen boundaries that partitioned the screen. The method of using a reflection mirror is a method often used to shorten the total length of the projection unit, and this method was also adopted in this example. FIG. 3 is a schematic diagram of a conventional multi-projector system. The image light projected from the image projection unit 101 is obtained as an image on the screen 309. The projection unit 220 is integrated with an image projection unit, a screen, and a box for blocking external light. A plurality of projection units are arranged to form a multi-video projector system. skoon 309
is included in the projection unit, so if a multi-projector system is configured with a plurality of projection units, a screen boundary 350 will remain.

FIG. 4 is a three-dimensional diagram of a conventional multi-video projector system. Image light projected backward from the image projection unit 101 is reflected by the reflection mirror 200 and guided forward.

The projection unit 220 is an integrated unit of the image projection unit 101, the reflective mirror 200, the screen 309, and a box for blocking external light. A plurality of projection units are arranged to form a multi-video projector system, but since the screen 309 is included in the projection unit, a screen border 350 remains when a plurality of projection units are arranged to form a multi-projector system. I end up.

[Effects of the Invention] As described above, in the multi-projector system of the present invention, by providing one screen, which is a separate unit, for a plurality of projection units, screen boundaries can be eliminated. We were able to improve the sense of screen unity in a multi-projector system.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of the multi-video projector system of the present invention. 101 Image projection unit 220 Projection unit 308 Projection lens 309 Integrated screen 600 Optical axis FIG. 2 is a diagram of the multi-video projector system of the present invention. 101 Image projection unit 200 Reflection mirror 220 Projection unit 309 Integrated screen 600 Optical axis FIG. 3 is a schematic diagram of a conventional multi-video projector system. 101 Image projection unit 220 Projection unit 308 Projection lens 310 Screen 350 Screen boundary 600 Optical axis FIG. 4 is a diagram of a conventional multi-video projector system. 101 Image projection unit 220 Blogijection unit 310 Screen 600 Optical axis

Claims (1)

[Claims] (1) In a multi-video projector system configured using a plurality of video projectors each consisting of at least an image projection unit and a screen, one screen, which is a separate unit, is provided for each of the plurality of projection units. A multi-video projector system characterized by: