Professional projection works, is the large screen projector, projection screen or three-dimensional projection ring, broadly understood, including projects related to other hardware and software, such as the integration of equipment, play equipment, stereo sound and so on, professional projection works is a systems integration project, program and configuration is very rich, is also very wide range of applications, such as cinemas, three-dimensional dynamic theater, large meeting space, performing arts venues, virtual laboratory, driving simulation, flight simulation, command and control center, Planning Exhibition Centre , the virtual sales center and so on.
Professional projector can project the following way :
Points according to the basic projection scheme , Can be divided into single common projection, single-channel stereoscopic projection, multi-channel common projection, multi-channel stereoscopic projection. Most cases, multi-channel projection is about stitching, so you can get more wider projection screen. For example, single-channel projection screen is 4:3 or 16:9, while the three-channel images can reach 10:3 or so. Ordinary projection, the use of one for each channel Projector , While passive stereo projection, the projection for each channel to use two machines, three-channel stereoscopic projection is necessary to use six projectors.
Play is divided by Can be divided into video and play virtual reality. For single-channel projection in terms of, play video and play virtual reality have no problem, projection screen for multi-channel ring, at present need to use different solutions. Several of the domestic companies have developed multi-channel video broadcast solution, the so-called fusion machine for multi-channel image fusion and correction, so that ring on the video screen image as a whole. However, because there is no 3D acceleration hardware integration capabilities, it is often not compatible with the virtual reality of play. For the application of virtual reality, virtual reality at present many mainstream software, such as in the VR-Platform, as the Code and so can support multi-channel ring projection screen, the software itself has a multi-channel module and the stereo module, the software can solve the problem entirely . If the user has two applications at the same time, you need to increase the video switching equipment.
Divided by the screen structure Can be divided into direct screen, screen and ball screen loop, technical difficulty in turn increase costs in turn increase. For straight screen, do not use the surface correction technology, the majority of cases, with the projector itself, the adjustment function can meet the requirements. Especially if applied in the precise design and construction company's experience, good results can be achieved even recklessly access without the use of fusion technology, and greatly increase the visual area of cost savings.
Central screen and need to use the ball screen edge blending and surface correction, cost considerably, but with the surround effect curtain rings to increase the immersion to give the audience an immersive experience, it is still widely used. However, the ring's point of view screen (screen that is part of the central angle) according to channel number, site characteristics, the number of other factors taken into account the audience, not the bigger the better. Some users think that the beginning point must be large enough, or even want to have made the two-channel projection of 120 degrees, is clearly unrealistic. In general, three-channel should not exceed the maximum angle of 120 degrees. Part of the wide-angle screen, the result can only near the center of the circle has a good viewing, can accommodate the number of relatively small audience, so wide-angle screen often ring for only a few viewers, compared Founder house, standing watch occasions, if the audience numbers are many, the venue longer, in order to ensure the audience side and rear viewing experience, the perspective of Central screen for an appropriate reduction.
In addition, the ring's point of view but also by the projection screen installation restrictions. Central point of a small screen when the projector side by side installation of a large angle when the curtain ring, cross-installation projector, screen at an angle when the ring area when the projector is often interfere with each other, in order to avoid interference, need to use short-focus or telephoto lenses to increase the number of costs, when the design needs special attention.
Ball screen on the screen of splicing and fusion have higher requirements, makes this discussion.
By screen type of , Can be divided into ordinary soft screen, metal soft screen, common hardware screen, hard screen, projection screen and so on. Cheap soft screen, transportation, installation, removal is more convenient, and the results are very good, but the screen for the ring, the inevitable will drum up a little, can not guarantee accurate cylinder. Hard-screen while the other hand, manufacturing, transportation, installation and removal is more difficult, the cost is relatively high, but it can ensure more accurate cylinder. Ordinary white projection screen can meet the general, but for passive stereo projection, the need to use metal screen, metal screen as the projector will not call back scattering of polarized light. Metal screen, high brightness, colorful, not only do have to use three-dimensional projection of the time, to do ordinary projector is also very good results, is a popular trend. However, the metal screen the price is relatively expensive, very difficult to manufacture. Especially for the large width of 2.4 m above the hard screen, the substrate often requires stitching, and metal coating is very sensitive to what can be done to ensure complete uniformity of results, large-scale spraying metallic paint itself is a big challenges, and the substrate is slightly uneven projection effects often leads to uneven brightness significantly, so considerable technical difficulties. I am an expert from China Manufacturers, usually analyzes all kind of industries situation, such as backcountry outlet com , buffing machines.
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