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,…
In recent years, more and more HLD (high-brightness LED light source) and laser 3D projectors have continuously flooded into the market and eroded the share of traditional light source projection products. From a technical point of view, traditional projector bulbs have obvious defects and can no longer meet the needs of users in the new…
First of all, you need to know the type of projector you want to buy, whether it is a zoom or fixed focus type projector, can it support functions such as picture displacement or keystone correction; the second is the projection distance, the projection ratio of each projector They are all different. The projection distances…
1. The power supply of the projector used by the projector must be a three-phase power supply with reliable grounding; when plugging or unplugging the power plug, make the projector power off. 2. When shutting down, be sure to shut down and wait until the fan stops before turning off the power switch. This is…
With the improvement of 3D skills, 3D movies have also become widely known. In recent years, 3D projectors have also begun to be installed at home so that people can watch 3D movies at home without going out. However, you cannot achieve the same viewing effect as a movie theater by installing a 3D projector.…
Many friends don’t know whether to choose an electric screen or a framed screen? In fact, it depends on personal preference and the design of the room decoration. Today there are chemical fiber white plastic screens, wave fiber white plastic screens, pearl white screens, rear projection soft screens, rear projection hard screens, 4K nano white/gray…
What is holographic projection technology, also known as virtual imaging technology, is a technology that uses the principles of interference and diffraction to record and reproduce real three-dimensional images of objects. Holographic projection technology can not only produce a three-dimensional aerial illusion, but also enable the illusion to interact with the performer, complete the performance…
When shopping, shop around. For things that are particularly low-priced, really have to think about it. Otherwise, you may be the one who suffers. Recently, Mr. Pan from Liaoning found a website called “Totoro.com” when he searched the website for purchasing projectors through the web. The projectors sold inside are very cheap, the expensive ones…
Four misunderstandings in purchasing home projectors The home projector market has developed rapidly in recent years. The emergence of polarized 3D projectors, micro projectors and laser TVs has given home projectors many new features. But many people still follow past experience when choosing a home projector. Buying a home projector with this awareness will inevitably…
We all know that the parameters of the projector include brightness, contrast, resolution, focus, projection ratio, lamp life, etc., and even the 3D effect of a 3D projector, so if you want to learn more about the types of projectors and various parameters, it is also a matter Relatively large knowledge. Today, I will talk…