In some large conference rooms, merchandise conferences, opera houses, museums, stadiums, large lecture halls, multimedia exhibition halls, science and technology exhibition halls and other places, attentive audiences will see huge engineering projectors. It is quite different from ordinary business projectors, educational projectors, home projectors, and mini projectors. Firstly, it is more expensive in price; secondly, the machine is larger and heavier than ordinary projectors; thirdly, it has high technology content and more powerful functions; larger projection screen, color reproduction, clear picture quality, 3D and 4K picture effects The performance is incisive and vivid, and the image is quite outstanding. Chongqing Project Projector
The salient features of Chongqing Engineering Projector. Project projectors have larger projection areas, longer distances, and high brightness, usually above 6000 lumens, and generally support multi-bulb mode, which can better cope with large and changeable installation environments. For education, media, and The government and other fields are very applicable; the use of motorized lenses, that is, lens shift technology. Because in the actual project, the lens of the ordinary business projector cannot be moved, and the actual environment may require our projector to be unable to move, but the lens is required to move up and down, left and right to meet the projection requirements; with dual bulbs, engineering projectors Equipped with at least 2 projector bulbs, some projectors have 4 bulbs, and high-end ones even have 8 bulbs. The significance of configuring dual bulbs is that when a projector bulb is broken, the projector will not fail to work unless it is broken at the same time. So when one bulb is broken, the remaining bulbs can continue to work to meet the actual needs of the project; the network control function requires the projector to be able to pass the network. Engineering projectors need to be able to monitor the running status of the machine through the RJ45 network control port, switch the projector; the lens can be replaced, the lens of the projector can be replaced with a long focal lens or a short focal lens according to the needs of the project. The product design is more user-friendly .
According to the different working methods of the light source, the technologies adopted by the engineering projectors are LCD, DLP, D-ILA, sRGB, and CRT types. LCD projectors are divided into liquid crystal panel projectors and liquid crystal light valve projectors. LCD projectors are divided into three-chip machines and single-chip microcomputers. The principle of three-chip LCD panel projectors is to project a color image on the screen by the projection lens, and the LCD single The light source life of the panel projector is short, the color is not uniform enough, and the resolution is low; the technology of the DLP projector is an all-digital reflective projection technology, which is firstly characterized by digital and reflective advantages, uniform contrast and brightness, and stable picture quality. The digital image is very accurate; D-ILA projectors have shown technical advantages in providing high resolution and high contrast, the use of light sources is more efficient, and higher brightness output can be achieved; sRGB projectors eliminate the color of different display systems By restoring the original difference, the image file can be displayed correctly and the uniform color can be ensured. CRT projectors have two performances: one is convergence performance, which has static convergence and dynamic convergence, and the other is focusing performance. The focusing mechanism includes electrostatic focusing, magnetic focusing and electromagnetic composite focusing. The disadvantage is that the brightness is low and the operation is complicated. Huge volume and high requirements for installation environment.
Chongqing Project Projector
It is worth mentioning that when selecting an engineering projector, if a single projection projection screen is used, a liquid crystal digital projector can be used. However, it is recommended to use a digital machine for splicing and fusion images. The advantages are easy maintenance, good background color adjustment, and stability. Well, after a long time, there will be no deviations in the background color. With the advancement of science and technology, the laser light source and HLD light source projection technology are becoming more and more mature. The price of this type of engineering projector is at the mid-range level, and the bulb has a long life and stable brightness. The long life of the machine is because the laser light source and the HLD light source are cold light sources, and the small heat damages the machine and makes the machine life longer. Therefore, this type of engineering projector product is more cost-effective.