Some small partners reflected that after buying the projector, they found that the bedroom was too small, and the screen was less than 100 inches, this was because the projection ratio was chosen wrong, and today Lingying took everyone to understand the projection ratio, to avoid similar situations from happening again, and the projector could not achieve a satisfactory use effect after buying home.
To understand the projection ratio, we must first understand its concept, which refers to the ratio of the projection distance to the width of the picture. For example, the 1.2:1 projection ratio we often see refers to the distance of the projector from the screen of 1.2 meters, which can project a picture of 1 meter width.
The projection ratio will also vary depending on the type of projector, and they can be broadly divided into three categories:
The first type is the most common projector, which mostly has a projection ratio of 1.2:1.
The second type is the light bulb machine commonly used in commercial offices, most of which have a zoom ring, and the projection ratio is between 1.3:1 and 1.6:1.
The third category is the recent rise of ultra-short throw projectors, most of which have a projection ratio of 0.25:1.
After understanding the projection ratio of commonly used projectors, how do you know if the projection ratio you choose is suitable?
Very simple! Multiply the projector projection ratio by the width of the picture to get the distance from the projector to the picture.
Taking the home projector with a projection ratio of 1.2:1 as an example, the width of the 100-inch picture is 2.21 meters, and the projection distance can be obtained by multiplying 1.2 by 2.21, which means that as long as the distance from the lens to the screen exceeds 2.65 meters, it can project more than 100 inches of screen (the projector size is not counted).
The distance required for other size pictures, Xiaoying has also sorted out, and everyone can save it for backup
In addition, in the case of the same distance, the smaller the projection ratio, the larger the screen, the same configuration of the projector price is also more expensive, we can choose the right projector according to their own needs.
Well, about projection than today to talk about this, what else do you want to know? Welcome to tell Lingying in the comments