How Do You Build A Slide Projector?
A slide projector shines light through a photographic slide and uses concave and convex lenses to project a larger image of the slide. Building a slide projector means simply constructing a frame or container that will hold the slide, a light source and the lenses so that the light travels through all the pieces correctly. If you don’t include a slide tray and just insert and remove slides individually, you can build a projector that is smaller than most. Assemble three square frames out of wood. The frames need to be the same size and able to fit either lens and the end of the flashlight. Cut a hole in each piece for one lens and glue the lens into the hole. Attach the flashlight’s open end with the lightbulb to the other frame. Make a holding frame for the slides using another square wooden frame. Cut this piece into a square “U” that a slide will fit within. Construct a boxlike frame that will snugly fit all the square frames and is about 45 centimeters long. Leave the top of this f
