How Do You Make A Homemade Projection TV?
You don’t have to pay thousands of dollars for a big-screen projection TV set. You can convert your own TV into a homemade projection version with a few cheap items. To do this, create and surround the TV screen with a tube-like box that completely contains the TV’s picture image. You also need a fresnel lens (like the type used in stage spotlights) to capture and focus the image. This will project a large-scale image on the wall and give you your big-screen equivalent. Measure the length and height of your TV screen. Measure only the screen itself, not the frame surrounding it. Cut out four pieces of cardboard or other sturdy material. All four should be 45cm long. Make two pieces as wide as the TV screen’s width and two as wide as the screen’s height. Cut one more piece to the same size as the screen and cut a hole in it that is centered and 17cm in diameter. Paint all of the cardboard pieces black on all sides. Wait for the paint to dry. Tape a fresnel lens to the screen-size piece,
