Large Fresnel Lens For Solar or Optics Projects
March 16th, 2008 . by admin
Precision crafted lens has approximately 50 lines per inch. Lens is approx. 11″ square and is 1/16″ thick. Unmounted. Instructions included to build a 360 stand and frame (frame not included). Frame allows you to use lens as a solar cooker for heating prepared foods, or for other solar experiments. For experiments see our Fun With Fresnel Lenses Book. — !!Caution!! A fresnel lens generates high temperatures when used under direct sunlight. Parent or teacher supervision required for educational demonstrations. Make learning safe!