Projector brightness cold knowle
2022-07-12
In general, the brightness of a projector is a parameter standard, but in fact, there are three brightness standards for projectors: light source brightness, projection brightness, and actual viewing brightness. This has to start with the principle of the projector. The imaging principle of the projector is that the light machine emits light, which is processed by the chip and projected onto the curtain or wall, and then reflected to the human eye. 
The brightness of the light source of the projector is the brightness emitted by the optical machine from the machine. This brightness value is the highest, but it has no reference significance at all. After all, we will not stare at the optical machine when looking at the picture, which is very harmful to the eyes. Can't do that. The projection brightness is the brightness of the picture on the wall measured after the projection light is projected on the wall. This brightness is relatively low in value, but it is indeed the brightness displayed by the picture, so the reference significance is relatively large. The actual viewing brightness is the brightness of the projector image entering our human eyes after the diffuse reflection of the wall/curtain. This brightness value is further reduced, and is greatly affected by the surrounding ambient light, so it is unlikely to be taken out as a reference. value of . Generally speaking, for our ordinary consumers, the projection brightness of the projector is of great reference significance, and the numerical unit is ANSI, so we can just look for the ANSI brightness of the projector when purchasing. Another cold knowledge is that the brightness of the projector is not as bright as possible, because many friends found that the color of the screen was a bit white during the use of the projector. In fact, in order to improve the brightness of projector products, more white light is added to the RGB color, which makes the overall brightness look higher, but the color is easily misaligned, resulting in whitening of the picture. In addition to brightness, color accuracy is also an important aspect when purchasing a projector.
