阅读说明：本技术 立体球体表面全覆盖投影装置 (stereo sphere surface full-coverage projection device ) 是由 王静江 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种立体球体表面全覆盖投影装置,包括多层次平台和多层次平台间设置的球体屏幕,球体屏幕为一球体,多层次平台上分别围绕球体中心轴线沿圆周均匀设置多台投影机,球体表面设置经纬线,球体表面经纬线交接点分别设置投影感测点,投影感测点分别设置投影感应器,各投影感应器分别连通感应传输线输出,各投影机从多层次平台的不同方向对球体屏幕进行影像投射,投影感应器感应投影影像,经影像控制软件控制重叠投影裁切,而能在球体屏幕上呈现立体的球形影像。该立体球体表面全覆盖投影装置,可以使球体屏幕表面全部投影覆盖,不会产生投影间的交点盲区,球体上下表面也能投影成像；且实现全球体精密影像无缝动态衔接投影。(The invention discloses a three-dimensional spherical surface full-coverage projection device, which comprises a multi-level platform and a spherical screen arranged between the multi-level platforms, wherein the spherical screen is a sphere, a plurality of projectors are uniformly arranged on the multi-level platforms respectively around the central axis of the sphere along the circumference, the surface of the sphere is provided with longitude and latitude lines, the intersection points of the longitude and latitude lines on the surface of the sphere are respectively provided with projection sensing points, the projection sensing points are respectively provided with projection sensors, each projection sensor is respectively communicated with a sensing transmission line for outputting, each projector performs image projection on the spherical screen from different directions of the multi-level platforms, the projection sensors sense projection images, and overlapped projection cutting is controlled by image control software, so that three-dimensional spherical images can be presented on the spherical screen. The three-dimensional sphere surface full-coverage projection device can enable the surface of a sphere screen to be completely projected and covered, an intersection point blind area between projections cannot be generated, and the upper surface and the lower surface of a sphere can also be projected and imaged; and realize the seamless dynamic linking projection of the global precise images.)

1. A three-dimensional spherical surface full-coverage projection device is characterized by comprising a multi-level platform and a spherical screen arranged between the multi-level platforms, wherein the spherical screen is a sphere, a plurality of projectors are uniformly arranged on the multi-level platforms respectively around the central axis of the sphere along the circumference, the surface of the sphere is provided with longitude and latitude lines, the intersection points of the longitude and latitude lines on the surface of the sphere are respectively provided with projection sensing points, the projection sensing points are respectively provided with projection sensors, each projection sensor is respectively communicated with a sensing transmission line for output, each projector projects images on the spherical screen from different directions of the multi-level platforms, the projection sensors sense the projected images, the overlapped projection cutting is controlled by image control software, and three-dimensional spherical images can be presented on the spherical screen.

2. The stereoscopic sphere surface full-coverage projection device of claim 1, wherein the sphere is a balloon and is suspended between the multi-level platforms by a suspension rope.

3. The stereoscopic spherical surface full-coverage projection device as claimed in claim 1, wherein the multi-layer platform is fixed by a bracket.

4. The stereoscopic spherical surface full-coverage projection device as claimed in claim 1, wherein the projection sensor is a photosensitive sensor.

5. The stereoscopic full-coverage projection device for the sphere surface as claimed in claim 2, wherein the balloon is provided with an inlet and an outlet, the balloon is suspended through the inlet and the outlet, the induction transmission line is connected out through the inlet and the outlet, the inlet and the outlet are connected with an air inflating pipe, and the air inflating pipe is communicated with an air pump.

Technical Field

The invention relates to a projection device, in particular to a three-dimensional sphere surface full-coverage projection device.

background

The projection device projects an image onto a large-area screen by a projector, so that a viewer can obtain a visual sensation of a large visual field, such as a movie or a commercial or household projector, for example. However, these conventional projection apparatuses all use a flat screen, and cannot provide a real stereoscopic image, and although a 3D image simulation technology is developed in cooperation with a color difference mirror, the conventional projection apparatuses are still limited by the flat screen and cannot display a stereoscopic image.

Chinese patent publication No. CN203276783U, publication date 2013, 11 month 06, discloses a spherical projection apparatus, comprising: the screen is a sphere which is suspended at a proper height inside the building of the projection hall by a cable and is used for displaying a three-dimensional spherical image; the projectors are positioned at the same horizontal height of the spherical screen, surround the spherical screen in an equiangular mode and are used for projecting images to the spherical screen; and a projector connected to each projector by signal wires for projecting images; each projector surrounds the spherical screen in an equiangular mode, images of the spherical screen are projected by each projector from different directions, image edge fusion is controlled through image control software, multi-channel sound is output by matching with a sound effect device, and a three-dimensional spherical image can be displayed on the spherical screen. However, in such projection, images are evenly distributed in a plane for projection, the overlapped part of the projected images is calculated by image control software to enable the overlapped edges of the images to be fused, but the process of fusing the overlapped edges of the images by calculation of the image control software has deviation, so that the overlapped edges of the images, particularly the upper side and the lower side of the images can generate image deformation, the images are fuzzy, and seamless dynamic connection projection of global precise images cannot be achieved.

Disclosure of Invention

In order to solve the technical problem, the invention designs a three-dimensional spherical surface full-coverage projection device.

The invention adopts the following technical scheme:

The utility model provides a three-dimensional spheroid surface all standing projection arrangement, including the spheroid screen that sets up between multi-level platform and multi-level platform, the spheroid screen is a spheroid, evenly set up many projectors around the spheroid central axis respectively on the multi-level platform along the circumference, the spheroid surface sets up the longitude and latitude, spheroid surface longitude and latitude intersection point sets up projection sensing point respectively, projection sensing point sets up the projection inductor respectively, each projection inductor communicates response transmission line output respectively, each projector carries out the image projection to the spheroid screen from the different directions of multi-level platform, the projection inductor response projection image, overlap the projection through image control software control and cut, and can present three-dimensional spherical image on the spheroid screen.

Preferably, the sphere is a balloon and is suspended between the multi-level platforms by a suspension rope. The sphere can also be a thin shell sphere or a solid sphere of each material.

Preferably, the multi-layered platform is fixed by a stent.

preferably, the projection sensor is a photosensitive sensor.

Preferably, an inlet and an outlet are formed in the balloon, the balloon is suspended through the inlet and the outlet, the induction transmission line is connected out through the inlet and the outlet, the inlet and the outlet are connected with an inflating pipe, and the inflating pipe is communicated with an air pump. The air pump continuously conveys air to keep the balloon inflated and ensure the complete shape of the sphere on the surface of the balloon.

The invention has the beneficial effects that: (1) the three-dimensional spherical surface full-coverage projection device is provided with a plurality of layers of platforms around a spherical screen, and a plurality of projectors are uniformly arranged on the plurality of layers of platforms respectively around the central axis of a sphere along the circumference, so that the surface of the spherical screen can be completely projected and covered, a dead zone of an intersection point between projections is not generated, and the upper surface and the lower surface of the sphere can also be projected and imaged; (2) the projection sensor is used for sensing and positioning the projection overlapping part to cut the projection image, so that accurate positioning can be realized, and seamless dynamic linking projection of the full-sphere precision image is realized.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

In the figure: 1. the device comprises a chassis, 2, a support, 3, an upper platform, 4, a lower platform, 5, a projector, 6, a sphere, 7, a steel wire, 8, an inlet, an outlet, 9, a projection sensing point, 10 and an induction transmission line.

Detailed Description

The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings: