Making a homemade projector without a magnifying glass is possible, although it may require a bit more effort and creativity. Here's how you can make one using simple household items:
Materials:
• Shoebox or cardboard box
• Smartphone or tablet
• Scissors or craft knife
• Tape or glue
• Ruler or straight edge
• Pen or marker
• Aluminum foil
• Pin or needle
Steps:
1. Cut a rectangular hole in one end of the shoebox or cardboard box using scissors or a craft knife. The size of the hole should be slightly smaller than the screen of your smartphone or tablet.
2. Trace the outline of the hole onto a piece of paper and cut it out. This will be your template for cutting the hole in the aluminum foil.
3. Use the template to cut a rectangular hole in the center of a piece of aluminum foil.
4. Tape or glue the aluminum foil over the hole in the box, shiny side facing inward.
5. Turn on your smartphone or tablet and open a video or image that you want to project. Place it face down in the box, with the screen facing the aluminum foil.
6. Close the lid of the box and tape it shut, making sure there are no gaps for light to escape.
7. Poke a small hole in the opposite end of the box using a pin or needle. This will be your lens.
8. Turn off the lights and shine a bright light source, such as a flashlight, through the pinhole. Adjust the distance between the light source and the box until you get a clear, focused image on a wall or other flat surface.
With a bit of experimentation, you can fine-tune your homemade projector to get the best possible image quality. While it may not be as powerful as a commercial projector, it's a fun and affordable way to enjoy movies or other media at home.