Making a traditional glass lens requires a lot of experience, skill, and patience grinding a piece of glass to the required shape, and is not for the casual experimenter. Making a glass Fresnel ...

Imagine a world where augmented reality glasses are as lightweight and comfortable as everyday sunglasses, or where ...

the Fresnel can have better properties. However, the distortions make them less suitable for imaging where regular lenses still reign supreme. A thinner lens, of course, should let more light ...