Homemade Projector
Here's an example of something I tried to make that sort of flopped.
I decided to start on making a projector out of bits of stuff I had laying around:
- Lens from an eye piece to an old camera
- Cardboard box
- Printer Paper
- Box from tea
- LED flashlight
- Slim CD case (temporary image element)
- Zip ties
- bits of wood from godknowswhere
The genesis of this Idea was to see if I could find the focal points for the lenses to display an image I had drawn on the CD case, using the flashlight as the light source, then later using the fog light. Problems came when I tried to get the lenses to adjust correctly. The problem was I failed to make a stable frame to hold the lenses and allow me to adjust them with enough precision, so if I looked at the apparatus wrong, they would fall out of alignment, very aggravating. More problems where when I tried to filter the light, or rather block it from the light source so that the only place it would come out is the lenses. Mind you I was using a pocket knife for most of the box carving, which meant gaps to later fill with gaffer tape (lets avoid the whole duck/duct argument). In the end I did get the scrawled image to show up on the wall of my extra dark bedroom faintly, but sharply. I back burner-ed this project at that point since I has some more important things to do, like eat and bathe.
Still, I may get back to this at some point if I can get my hands on some old "broken" lenses from professional grade cameras, and some Fresnel lens. Also some more TFT based LCD screens would help, but getting those in high res and not borked completely is harder to do than originally thought.
So here's some images of what I did so far:
