Overhead projectors are very handy. You can use them for professional looking presentations at school or work. If you want to brief people about a new project or thesis, overhead projectors will greatly help you. It projects images much bigger than your original copy, so more people can see it. You can even project images and videos on a screen. Try watching movies with your friends using an overhead projector. It will be like you’re in the cinema because of the big screen. Make your images bigger so you can analyze them better.
There are many things you can do with an overhead projector, however they can be quite expensive. Even renting an overhead projector can cost you a lot of money. What more if you buy one? It’s a good thing you can easily make an overhead projector with the things you have at home. All it takes is a little skill and patience, and you’ll be able to enjoy the benefits of an overhead projector at home.
Here are some steps on how to make an overhead projector:
- Know the basic principle of projecting images. The concept of the overhead projector is to maximize images coming from a source. This is done by magnifying the images reflect them onto a flat surface. Using this knowledge, start to think of your materials, and how much or how big they need to be.
- Prepare your materials. The first and most important material you will need is a lens. For best results, make sure that your lens is curved. This is the best type to use for magnifying images. You can also use a simple magnifying glass, depending on the size of the thing you want to project. Another thing you will need is a flat surface to project the image on. The best place to project images is a white wall or screen, because it will not alter the colors of the original copy. This means that you will get the real color of your images. These next materials are optional, but be aware that they will make your overhead projector much better. A large sheet of cardboard, or four pieces of paper. They must be shaped like a triangle, tapering at one end. You can also choose to add a small light bulb. You might also need a mirror depending on what type of copy you plan to magnify.
- Start assembling your materials. First, you have to consider what your original copy will be. If you want to magnify images from a screen, you will first have to turn it on. Have it face the screen or wall where you plan to project your magnified images. Try to estimate where you will place your magnifying glass, in order to project things correctly. Make sure that you try to place it right at the middle of the screen you want to project. Next, when you’ve measured the right distance and placement of the magnifying glass, take your sheet of cardboard and measure the distance in between the monitor and the screen. Cut up your cardboard into that size, making sure to cut it like a triangle, tapering at the ends going to the magnifier lens. Glue this to the screen you want to project. If you want, you can place a light bulb inside the ‘cave’ you have built to give more light, as it lighting can be a problem for this kind of overhead projectors.
These steps will help you make an overhead projector right at home.