Projectors are favored by the public because of their small size, do not take up a lot of space and large screen, and are widely used in many fields, so what should we pay attention to in the purchase of projectors?
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First of all, we need to be clear about the purpose of their use, is used for office, home, training and so on. The projectors we need are different for different scenarios. For example: home projector.
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Home projector we need to pay attention to the following points when purchasing:
I. Brightness
Brightness is very important for projectors, there are many businesses will use a lot of different units to promote the brightness of the projector, the most common is the light source brightness and ANSI lumens.
The brightness of the light source is the most original luminous brightness level of the projector bulb. Generally speaking, it is the brightness that has been deleted without the lens or other factors.
ANSI lumens is the internationally recognized unit of projector lumens. In simple terms, it has reduced brightness.
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So, is the brighter the projector, the better? In fact, this is not the case, it needs to be based on a number of objective factors to choose.
1. Screening environment
The projection environment is one of the objective factors for us to choose the brightness. Generally speaking, the brightness of the entry-level home projection on the market is basically about 2000 lumens, if you are used in the living room, living room, the time used by the home projector and the content used to watch will affect the brightness of the screen, and the projection environment will also need to be blackened when watching the movie. Because natural light has a certain impact on projectors using the principle of diffuse reflection, this is not to say that home projection is not as good as television, but two different working principles. Of course, if you have a professional video room, you can do all black environmental effects, then 1000 lumens or so of the projector can play the best display effect.
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2. Size of projection screen
The size of the projection screen is also another important objective factor for us to choose the brightness of the projector. This factor is also a good choice, that is, according to the larger the screen required brightness is the corresponding higher standard on it. As a general rule of thumb, we choose the following in terms of brightness versus screen size: an 80-100 inch screen needs 800 lumens brightness; 100-120 inch screens require 1000 lumens brightness; Screens larger than 120 inches require 1300 lumens or more.
Ii. Resolution
Resolution is one of the most important parameters we look at when choosing a projector. The common resolutions on the market are 480p, 720p, 1080p, and 4K. However, many projector businesses will make an issue of it, saying that 1080p is actually equipped with a 0.33DMD display chip, and 0.33DMD corresponds to 720p resolution, 0.47DMD is 1080p resolution. So why is this the case?
The reason is that the manufacturer makes each micromirror form two pixels through the pixel high-speed shaking micromirror, so that the number of pixels is multiplied. Thus, 720P pixels reach 1080P pixels, but it is not really close to the physical number, so we call it pseudo-1080p.
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3. CPU
The CPU is the center of the projector, and its good and bad determines the running speed of the entire electronic equipment of the projector. Common CPU models are as follows: Mstar 6A938, Mstar 6A848, Mstar 6A838, Mstar 6A638, Amlogic T968, etc. These models can be found in the Dangbei projector, Kimi projector, Nut projector, Mijia projector, SONY projector, BenQ projector, God Picture projector, etc. The best CPU model here is the Mstar 6A938 processor, similarly, only Dangbei Projection F1 and Dangbei new product M3 are equipped on the market at present, as to whether there are other projectors still equipped, I personally have not found.
4. Noise
For friends who have not used projectors, they may not know that projectors have a certain amount of noise. The noise of some projectors will seriously affect our normal viewing, which is unbearable. Therefore, when buying a projector, noise is also an important part.
Generally speaking, products with noise below 40dB are acceptable, but when purchasing, you should listen to yourself in a quieter environment to see if it will interfere with yourself.
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Above, I personally feel that in the purchase of projectors need to pay attention to the place, of course, there are a lot of content not said, you can also add in the comments ~~