Building a homemade projector with your own hands is not at all difficult. 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 is just planning to make a projector, he needs to be guided by personal goals, as 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 a unit at home. The final result directly depends on the quality of the lens and the lens. If the master does not have the necessary skills, then you can determine all the necessary parameters in the traditional way. The main image source in the projection device is a liquid crystal matrix. This element functions in the light. Each individual pixel is projected with an increase in size. From brightnessprojection lamp directly depends on the diagonal of the screen, with which you can watch movies 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 resulting picture quality is much better than when watching movies from your phone. This is ideal for a large family. A homemade projector allows you to enlarge the image several times. To work, you need a standard cardboard box 50 centimeters long or more. The back wall should be slightly larger than the tablet (laptop). A classic magnifying glass can be replaced with a large Soviet-made magnifying glass. Due to which the reproduced picture will be clearer. The tablet must be firmly fixed inside the box. The master needs to remember that the lens will turn the image upside down. If a laptop is used, then two cuts must be made in the box. The gadget is folded on the upper half with the keyboard down. The monitor should be positioned opposite the incisions. It is worth noting that the box used must support the weight of the laptop.
Mobile phone versatility
A high-quality homemade projector can be built from an ordinary smartphone. To work, you need to prepare in advance a cardboard shoe box, a magnifying glass or a lens that will magnify the image 10 times, ordinary adhesive tape,blue electrical tape, a pencil, a few paper 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. Tape and electrical tape are ideal for fixing the magnifier. If desired, the master can use silicone or a 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. This will allow you to enjoy your favorite movies in peace.
Classic projector
Every man can build a homemade projector screen from improvised means. This option is relevant when the family likes to gather in the evenings to watch interesting slides. A bright lamp or flashlight is useful for work, as well as a magnifying glass for reading (preferably flat). An ordinary stool is installed at a distance of two meters from the improvised screen. The main light source is placed on it. You need to install slides in front of the flashlight. The picture will be enlarged with a magnifying glass. The clarity and size of the picture can be adjusted by changing the distance between the screen and the projector. Of course, this design will not be able to replace the traditional unit, but it will allow you to have an interesting time. You can also make a home-made projector according to this scheme in the case when children like to watch Sovietcartoons.
Improving quality
If the master has already built a homemade projector for the phone, then he can try to sharpen the image. To do this, you need to set the 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, it should be replaced with another magnifying device.
Homemade smartphone projector compares favorably with its affordability and quality. But in order 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 "leakage" of light rays. The final result largely depends on the surface on which the film is projected. The canvas must not have defects, dirt or seams. It is advisable to use a special screen, but you can get by with a white surface.
Recommendations from experts
To increase the size of the projected image and improve the final quality, you need to replace your smartphone with a laptop or tablet. The projector can also be built from an LCD monitor for even better results. The box should alsoquite large, and the lens is of high quality and without scratches. To avoid overheating of the matrix on the tablet, an additional fan must be installed when the projector is manufactured. The product will provide a continuous supply of fresh air. The fan can be fixed with adhesive 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.
