Fresnel Lens

Daily Prep

Building a Fresnel Solar Cooker

Simple Solar DIY
Wednesday, December 24, 2014, 5:23 PM

An awesome tutorial on how to build a high powered solar cooker using a Fresnel Lens.  Time to find an old rear projection TV on Craiglist.

Daily Prep

DIY Solar Foundry

Sun + Fresnel Lens = Temperatures of 3800 degrees Fahrenheit
Tuesday, May 21, 2013, 6:22 PM

Learn how to build a solar foundry and take full advantage of the sun's power.

Daily Prep

Solar Water Distilling with a Fresnel Lens

Use the power of the sun to distill water
Thursday, July 19, 2012, 3:02 PM

Caution - A Fresnel lens is powerful light-focusing lens that can produce temperatures over 700+ degrees.  Great care must be used when working with these lenses. 

Here is an interesting approach to boiling water for purity and then distilling it to remove salts and other impurities. 

In this video we use a linear Fresnel lens to boil and distill salt water into drinking water. The goal is to use this simple technology to help people who don't have a clean water source, or live near the ocean and need to desalinate water for drinking and cooking.