Weak current College】 【cinema projection system configuration tips.

<br> <br> Theatre video projection system is multifunctional Theatre facilities, an important component. This system is mainly used to meet the following requirements: <br> <br> 1. the broadcasting of television signals, important news and real-time .viewing of live meeting. <br> <br> 2. connection laptop VGA video signal to report meeting, lecture, etc. <br> <br> 3. to play DVDs, for TV entertainment. <br> <br> 4. .projection performance background, for large Orchestra, etc. <br> <br> 5. connection digital cinema server, play, demonstrates digital cinema programs. <br> <br> For the above functionality, we achieve system constitute, for layout and appropriate .specification proposes different configuration requirements. <br> <br> According to the theatre space, because you do not have the background area of the stage, and so video projection system does not have a backlight, you can only use is to vote. Vote .in a positive way, and there are two projector position layout: one is above the audience Hall, lifting type projector hanger, when not in use, up to the ceiling, above, down to the appropriate location, the projection screen projection screen. This .method is easier to implement, without having to purchase more products, projection quality. Only in combination with the roof shape, appropriate decoration. The disadvantage is: use the projector on top in exposed audience Auditorium, the vision in bright conditions, the unsightly; .in addition, lifting type projector hanger high reliability is not available, the position in case of lifting to stuck in the middle of may result in adverse consequences. <br> <br> Another scenario is: put the projector in the Auditorium of the control .room after district, with long distance projection. The benefit is not the audience Hall is beautiful, especially when playing the movie, and conventional film show more consistent, I feel better. But considering the platform meeting, projection of computer VGA signal transmission to the .projector, because of distance, the signal quality is poor, will make the picture becomes blurred, produce ghosting. Therefore, you must configure the long focal length projection lens, additional VGA signal line driven device to meet the quality requirements of projection signal. As .a result of investment considerably. <br> <br> These two programmes, mainly consider the audience Hall of the Visual effects and investment size, projection quality differences are not large, are all mature programmes. We recommend the second option, you can improve .the use of security and reliability. <br> <br> Main device selection: <br> <br> 1. the projector: <br> <br> Taking into account the higher brightness using the environment and the projection screen is large, .and reliability, service life have higher requirements, the system should use project data projector. Most such projectors DLP optical processing system with high resolution 1024 × 768, high brightness more than 5000 lumens (using dual-lamp), high contrast ratio of 2000: .1, therefore, in a bright environment picture more clear, the service life and reliability greatly enhanced. <br> <br> 2. the projection screen <br> <br> Projection screen selection, the effect of the drop shadow effect. The .main problems: <br> <br> ① brightness gain <br> <br> Good projection screen, its brightness gain> 1, projection screen, high brightness, guaranteed luminance conditions, can reduce the projector lamp output power, longer life, .or select lumens smaller projectors to cost savings. <br> <br> ② the angle of reflection <br> <br> Good projection screen, its reflection angle is large, we are in a position to watch the screen does not feel uneven brightness .. Screen image for higher quality. <br> <br> ③ Curtain matrix to <br> <br> Good projection screen composite plastic curtain base, weight uniform bead, to improve the picture quality is essential. <br> <br> ④ .screen contrast <br> <br> Good projection screen contrast is better, the screen will not produce distortion. <br> <br> 3. long-line drive <br> <br> Because, now a meeting, lecture or lectures in .general are used to make a presentation to your notebook through projection screen magnification. Because the notebook on the stage, the projector in the Auditorium after side of the control room, signal transmission distance is too large, it will seriously affect picture quality. Therefore we .configured the VGA signal long-distance transmission of long-line drive, the longest transmission distance up to 300 meters, you can meet the requirements. <br> <br>.