How to calculate the projection distance from the multimedia projector to the screen!

The projector has a special parameter to calculate the projection distance, which is called projection ratio = projection distance/screen width.

For example, the projection scale of Sony EX/KOOC-0/2/KOOC-0/is/KOOC-0/.4:/KOOC-0/,and the screen size is fixed (/KOOC-0/00 inch 4:3 curtain width * height = 2.03m */KOOC-0/.52m). EX 12 1 projection distance 100 inch, directly use1.4 * 2.03m = 2.842m. ex121also1.

Therefore, just choose a value between 2.842 m and 3.6946 m as the installation distance.

Extended data:

Actually, it doesn't matter how far the projector is from the screen. The key is to look at the parameters of the projector. Generally speaking, as a short-focus camera, the projection of a 60-inch picture is only about 0.7 meters.

But if it is a telephoto projector, the same 60-inch screen will be 1 m or 1.5 m, and the distance between different projectors will be different. Therefore, when choosing a projector, you need to plan in advance how big the screen needs to be projected and where the projector needs to be placed, so as to avoid not knowing how to install it after buying it.