you are finnished now (update) i found a heat sink and installed my 20w led its not that much brighter but i think i can fix that by adjusting the con...
i will show you how to make a homemade projector using mostly things you can find around the house. (remember to read the whole thing before you start because i am adding new info at the end as i learn more, im a beginner 2)
you will need a large cardboard box, i used a cornflake box, you need a fresnel lens and a regular magnified glass i found the fresnel lens at a shop advertised as (credit card sized magnifier) for about 5 bucks and the magnified glass should be about 2inches across, you also need a bright light, the brighter the better but led is good because it needs to be cool or else you will cook the lcd i got the lcd from ebay for $28.00 and it allows you to plug anything into it. you will need a round cylender the same width as the magnified glass (i used pringles chip container) the last few things you will need are aluminum foil ,tape and scissors.
i bought that square looking led light of ebay for $20 but i cant use it yet because it needs a heat sink and fan, the other one runs cooler. 12v
Step 2: How to begin
to begin get your box and cut the top off then about halfway down put a piece of cardboard with the fresnel lens in it and firmly tape it down (see pic) cut out another piece of card board the same width as the box and cut a hole in it for your light the cardboard around the hole should be covered in tin foil to reflect the most light. insert it in your box make sure it is in line with the fresnel lens and should be at least 3inches away from it. (update) i just learnt that if you want to make the picture about 3x brighter you need to put a cone + condenser lens/strong magnified glass on the light (see pic)