When installing curtains, the installation height of curtains is certain. It needs to consider two factors, the viewing angle and the height from the ground. The requirements for curtain installation height are as follows:
1. The bottom of the projection curtain is equal to the height of the audience seat. If it is too low, the projection light will be blocked, and if it is too high, the viewer will look up and affect the comfort.
2. The size of the projection curtain will also affect the installation height of the curtain, because the size of the curtain will directly affect the setting of the viewing distance, thus indirectly affecting the installation height of the curtain.
When installing the projection cloth, it is necessary to determine the position where the projection curtain is to be installed, and then set the position of the projector. Fix the projector temporarily first, fix the projection screen at the center of the projection screen with the lens of the projector as the center, and then fix the projector after determining the height.
Second, how high is the projection curtain?
According to research, the comfortable viewing angle of people watching movies should not be higher than 15. If the height of the center of the projection screen = the height of the sitting line of sight, the viewing effect is the best. The formula for the height of the projection screen from the ground is:
Curtain height from the ground = sitting height-(projected curtain height /2).
According to this formula, the height of an ordinary 92-inch projection cloth is 1 14cm, the sitting height of human body is 105cm, and the curtain height from the ground is105-(114/2) = 40.
Do you need to leave a reserved size for the projection cloth ceiling?
Many families will choose to install electric curtains, which can be put away when not in use, and it is convenient to operate them by remote control. However, when installing electric curtains, it is more appropriate to stick them on the ceiling as far as possible for the sake of beauty, so it is necessary to reserve some sizes for the ceiling of the ceiling. So how much does the ceiling size of the projection cloth need to be left?
Generally, the reserved ceiling size of projection cloth is related to the projection curtain size, curtain type, upper and lower limits, installation method and so on. Different brands of curtain products and models sometimes vary greatly, so we can't generalize. Generally, it is almost enough to reserve a ceiling of about 10-20cm during installation. See the installation instructions attached to the product for specific dimensions.