A4 Fresnel lens

The Fresnel lens works like a traditional lens, but has the advantage of being much thinner, which reduces its weight and cost.

The Fresnel lens can be used to converge the sun’s rays. Put the face to the sun and the light will be concentrated in a point at the focal distance (30 cm), allowing you to heat and/or light all types of material instantly.

Flexible, lightweight and unbreakable, the Fresnel lens can be used to start fires or barbecues, for solar cooking or solar pyrography.