It’s not at all difficult to make a home-made projector with your own hands. To solve this problem, an ordinary smartphone or tablet is often enough, as well as a small amount of stationery. The finished device can be used to view photos, videos, as well as your favorite movies on a large screen. When a beginner just plans to make a projector, he needs to be guided by personal goals, since each option is suitable for certain situations.
Description
If you carefully consider the scheme of a classic projector, you can immediately understand that it is almost impossible to make such an assembly at home. The final result directly depends on the quality of the lens and lens. If the master does not possess the necessary skills, then you can determine all the necessary parameters in the traditional way. The matrix on liquid crystals acts as the main source of the image in the projection device. This element functions in clearance. Each individual pixel is projected with increasing size. The screen diagonal directly depends on the brightness of the projection lamp, with the help of which it will be possible to view films and other video materials.
Using a laptop or tablet
Today, there are several basic options for homemade projectors. Many home masters prefer to use a tablet or laptop. The screen resolution of these gadgets is small, and the final picture quality is much better than when watching movies from the phone. This is ideal for a large family. A homemade projector allows you to zoom in several times. For work, you need a standard cardboard box with a length of 50 centimeters or more. The back wall should be slightly larger than the tablet (laptop). A classic magnifier can be replaced with a large Soviet-made magnifying glass. Due to what the reproduced picture will be clearer. The tablet must be firmly fixed inside the box. The wizard needs to remember that the lens will flip the image. If a laptop is used, then two cuts must be made in the box. The gadget is folded down to the top half of the keyboard. The monitor should be located opposite the cuts. It should be noted that the box used must support the weight of the laptop.
Cellphone Versatility
A high-quality home-made projector can be built from a regular smartphone. To work, you need to prepare in advance a cardboard box from under the shoes, a magnifying glass or a lens, which will enlarge the image by 10 times, ordinary adhesive tape, a blue insulating tape, a pencil, several clips, the gadget itself. This is a great option when you need to create a home theater for children. In the box you need to carefully build a small window for the lens. The product must be installed exactly in the center of the box. Adhesive tape and tape are ideal for fixing the magnifier. If desired, the master can use a silicone or glue gun. The phone is fixed in one position with a curved paper clip. You can experiment with the location of the smartphone. On the back of the box you need to build a small hole for the charger. Due to this, you can safely enjoy your favorite movies.
Classic projector
Every man can build a homemade screen for the projector from improvised means. This option is relevant when the family likes to gather in the evenings to watch interesting slides. A bright lamp or a flashlight, as well as a magnifier for reading (preferably flat) are useful for work. At a distance of two meters from the makeshift screen, a regular stool is installed. The main light source is placed on it. Before the flashlight you need to install the slides. The image will increase due to the magnifier. The clarity and size of the picture can be adjusted by changing the distance between the screen and the projector. Of course, such a design will not be able to replace the traditional unit, but will allow you to have fun. You can also make a home-made projector according to this scheme when children like to watch Soviet cartoons.
Improving quality
If the wizard has already built a home-made projector for the phone, then he can try to increase the clarity of the image. To do this, you need to install settings on your phone that will improve the quality of the picture. You can also try changing the location of the gadget. The closer it is to the magnifying glass, the sharper the image, but the size of the film will become smaller. You can also work with the lens itself. It must be cleaned of dust and dirt. If there are scratches on the product, then if possible, replace it with another magnifying device.
A homemade projector from a smartphone compares favorably with its affordability and quality. But to increase the clarity of the reproduced picture, you need to create absolute darkness in the room. You can use blackout curtains, as well as eliminate all unnecessary light sources. The inner surface of the box must be painted over with black paint. Due to this, the master will be able to eliminate a kind of "leak" of light rays. The final result largely depends on the surface onto which the film is projected. The canvas should not have defects, dirt or seams. It is advisable to use a special screen, but you can do with a white surface.
Recommendations of specialists
To increase the size of the projected picture and improve the final quality, you need to replace the smartphone with a laptop or tablet. The projector can also be built from the LCD monitor, which will achieve even better results. The box should also be quite large, and the lens should be of high quality and without scratches. To avoid overheating of the matrix on the tablet, an additional fan must be installed in the manufacture of the projector. The product will provide a continuous supply of fresh air. Fixing the fan can be done with tape or electrical tape. If everything is done correctly, then in the end you can get an interesting projector from improvised materials that will reproduce not only a clear, but also a high-quality picture.