Teach you four ways to install projector 1. Front projection installation.
Orthographic projection installation is the most widely used installation method of projector, and it is also the easiest projection method to realize. The concept of orthographic projection means that the user and the projector are located on the same side of the projected picture, and the projected picture is directly reflected to the user's eyes through curtains or walls.
2. Rear Projection Installation
Compared with the orthographic projection, the rear projection will have a certain guarantee in the picture effect. Because the user sees the transmission picture from the curtain, and this projection method itself will deal with the ambient light, it can be said that the ambient light has little influence on the picture and is superior to the front projection in projection quality. Secondly, because the projection is carried out from behind the projection screen, the user's walking will not affect the projection screen.
The shortcomings of rear projection are also obvious, such as occupying a large space. The rear projection can reach the same screen size as the front projection, but the distance needs to be almost doubled, which is very inconvenient for many occasions with narrow space. At present, the most common solution is to adopt refractive rear projection, that is, to project the projection picture onto the mirror at a set angle, and then project it onto the curtain through the reflection of the mirror, which can reduce the distance required for rear projection.
3. Ceiling installation
A projector hanger is required for ceiling installation.
Ceiling installation requires a projector hanger that is connected to the top wall with expansion screws. Fix the projector hanger on the top wall with nails. The projector can then be mounted on the projector hanger.
Ceiling installation refers to the installation method of hanging the projection to a high place by installing a hanger. Usually, the projector is installed on the ceiling for projection. Projectors with lifting function generally have special lifting holes at the bottom of the machine (there are lifting holes connected with the projector hanger at the bottom of the engineering machine) and are connected with the projector hanger, and there are universal hangers suitable for various models. What are some good and practical projector rack brands on the market? NB projector hanger? .
If the ceiling installation method is adopted, special attention should be paid to the strength when selecting hangers and screws, and the corresponding screws should be selected to connect with the projector hanging holes. At the same time, when the screws are screwed into the projector, the screwing depth must be to the end, so that the projector hanger is closely connected with the projector without loosening. This can prevent the projector from falling when hanging from the ceiling.
The suspension can be front projection or back projection. After installing the projector, you can enter the projector settings to adjust the image. The advantages of hanging installation are obvious, because it has been fixed at the top, so it will not be touched by human factors and make the picture deviate. In addition, the hanging installation will not affect the surrounding audience because the equipment is far away from the user.
Step 4 shoot from the side
Side pouring is a new installation method in recent years, which is usually used in combination with desktop. Some lecture halls that didn't have projectors installed originally didn't reserve the position of projectors. Even if you barely hang up the projection screen temporarily, there is no place to put the projector. At this time, side projection comes in handy: the projector does not need to be placed in the opposite direction to the projection screen, and it can be restored to normal by adjusting the horizontal trapezoidal correction.
Projectors supporting side projection function are expensive and emphasize portability, so they are not widely used. It is mainly suitable for temporary use in some occasions without projection environment.
Precautions before installation:
1. Make sure that the projector is installed indoors without water leakage or falling off.
2. 220V AC power supply is available at the projector installation location, and the line has a certain carrying capacity.
3. Ensure that there is no direct sunlight on the projector and projector screen. If there is direct sunlight, shade it.
4. The vga video cable connected between the projector and the computer should be shorter than 30m.
Over 30 meters, the signal will be attenuated; If it exceeds 50 meters, the picture may not be detected. If the length of vga video line is very long, vga signal expander can be used to make vga video line longer without serious signal attenuation.
5. According to different projector lens models, the screen size at the same distance will be different.