Well Done! if you got this far let me tell you something. And that its all what you need to start this project. (with cutting disk, and sanding bit) -Some screws to hold the fan in place. Now the tools you'll use: -Soldering gun.
#Make a projector mp4#
Power connector.-Just take it from any electronic device that you don't use, or buy one that is gonna cost about $1 -Some cables.-Any cables, you could use cables from the same old PSU -Fresnel lens (magnified lens)-$1 -LEDs, this one has 80pc, 13000 mcd 5mm-$20 Not a bad projector for under $100, I spend a little less because i had the MP4 player hanging around. Small switch.- I took mine from an old PSU (power supply unit) easy to find.
#Make a projector Pc#
$1 -Small fan, i used a 50mm fan (Maybe you don't need the fan, depending on how hot the circuit with the LEDs gets, i put mine because the resistors that came with the leds are not very good and they get hot.)- i took this from an old pc processor cooler. (or any other box you will lite to use, i like this project box because they are strong and they have slots to hold things in place) $5 -An old slide projector lens. The price of this may vary depending on the quality. This is all what you need: -MP4 player with a screen of about 2" (the better the quality of the screen the better the projection will be) Try to get it with AV in, mine does. Ok, we just see it working, lets see if i can tell you step by step how i done it. In this video you can see the projector working, but in real life you can see the screen a lot brighter. Please keep in mind me english sucks and this is my first instructable. I don't think i have pictures of the whole project but I'll try to gather as much inf and pictures i can to add it here. I'm still not to happy about the result, because the light is not even, thats is because the angle of the LEDs do not allow them to be so close to the screen, so i decide to buy one of the new high power led and use it with a condenser lens. Here is the result, using 80 led of 13000mcd. So I thought i could try to make something similar, and if possible a bit better, and obviously a lot cheaper. You can buy a led projector here in Uk for about 100 pounds, but there are not to good, they need to be in a dark room and the size of the screen they project is about 21" witch is not really impressive. Now you can find everywhere led projectors, some of them are really good, but also so expensive. I think in this web page you can find lots of people doing the same, and that is REALLY helpful for all of us. I like to do thins that are not to expensive but does the job of something a lot more expensive.
Sunglasses cannot protect your eyes from the damage the Sun's rays can do to them. Never look at the Sun directly without protective eye gear.To make the image of the Sun larger, hold the screen paper further away from the paper with the pinhole.Ī box projector works on the same principles, it requires a little more time and a few extra items to construct, but it is more sturdy.Hold it at a distance, and you will see an inverted image of the Sun projected on the paper screen through the pinhole. The 2nd sheet of paper will act as a screen.With your back towards the Sun, hold 1 piece of paper above your shoulder allowing the Sun to shine on the paper.Make sure that the hole is round and smooth.
0 kommentar(er)
