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Slide Projector

by csweichel, published

Slide Projector by csweichel May 19, 2012

Description

Slide projectors display images with an incredible contrast ratio and allow us to create pictures using simple materials such as paper.
This is projector is as simple as it gets, an LED light source, a convex lens (from a magnifying glass) and a projection lens of eBay.

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Instructions


Modify the panels to fit the size of your lenses and light source
Laser cut the parts
Put together and add a dia slide


It might be a good idea to test all the components together before cutting the pieces. I used a 100mm projection lens, so any other focal length might result in different distances within the system. The ones used here are:

Light source to condenser lens: 2cm
Condenser lens to picture frame: 0.5cm
max. picture frame to projector lens: 9cm


Be careful to use a light source that does not get too hot, I used an LED lamp. However, one should try and find one above 500 lumens and with as less LEDs as possible, as more than one LED results in an unevenly lit projection.

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