DIY- homemade projector

Step 4 Attach magnified glass

to attach magnified glass, cut the cylinder in half (to about 3-4inches long) both ends should be open tape the magnified glass to one end. cut a hole in the box make sure it lines up with the light and fresnel lens insert it in (lens should be on the outside of the box) to make it more stable you can add another piece of cardboard to hold the cylinder.  you can now turn the light on and you should see a shape on the wall push the magnified glass in and out to focus (just put a slide in front of the fresnel lens and you have a slide projector!) if you see the individual leds projected onto the wall and not just a square white light you need to move your fresnel lens farther away from the led.

Comments

[osmith3]

this is ingenious!

[kiramaya]

a normal maginifer will do the job,did u use a triplet lens

[porkypinekiwi]

no but i did use more than 1 mag glass/ fresnel lens

[swapnil24]

will you please make a video of each step that how you build it please...

[swapnil24]

will you please make a video of each step that how you build it please...