Pinhole Slide Projector
I have no idea whether this is the right place to post this topic, but it does say 'burning questions' and that's what this is, so here goes. :-)
I've had this idea for a kind of pinhole lense slide projector. The (very basic) diagram is pretty self explanatory, and I was wondering if anyone's tried/heard of anything like this, and whether it could work? Do you think a 100 LED torch would be bright enough? Also, if I'm right in thinking that LEDs don't get hot, there shouldn't be a risk of overheating/fire should there?
Looking forward to hearing what you think! :-)