DIY- homemade projector

Step 3 Make light box

now you have your fresnel lens and light lined up you need to cover it to keep the light from escaping. to do this you need to cut out 3 pieces of card board and wrap them in tin foil place them around the light and fresnel lens it should be a tight seal with barely any light escaping except for through the fresnel lens.

Comments

[supreme-ette]

What kind of projector is this? Could it project a movie/vid, or just a still image?

[porkypinekiwi]

well you can either make an old fashioned slide machine or you can use an lcd screen like i did and all it does is makes the screen bigger so yes you can watch movies on it!

[porkypinekiwi]

its an lcd screen with composite cables (red white and yellow) so yea video, image and music!

[supreme-ette]

Could I get that type of LCD from an out of used digital camera?

[osmith3]

you need an LCD panel which will take the type of video signal you wish to use it with - so, if you want to project Television, your LCD panel will probably come from a miniature LCD TV which has a Scart socket on it, or if you want to project a computer screen, your LCD panel will have to come from a flat-screen computer monitor.

Unfortunately, this does usually mean taking some expensive equipment apart - like a TV or computer monitor! - but the good news is that you could use equipment that isn't working properly. Look for a computer monitor with a broken backlight, because you don't need that part to use it for this build.

[bro222]

well, dr nerdington, this isn't a commercial projector is is?

[wozlaser]

gotta make do with what you have. With such a dim light source it's understandable that the foil would do more good than harm, especially because it diffuses more than a mirror so you'll have more uniform glow rather than direct unaimed reflections. It's not a pro piece so not all the rules are the same :)

[DrNerdington]

...likewise for this foil (see my comment on the last step). If you look inside commercial projectors (not to mention cameras) you don't see shiny, you see lots of flat black. There's a reason for that...