My Fingernails Are Fresnel Lenses, is a thoughtful poem about the make-up of memories and how they work through our system. “Most of my work comes from a scientific point of view. So often I ...

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 ...

The first telescopes refracted light, and today reflectors dominate, but there is a third way to make light focus, and it ...

For centuries, telescopes have relied on curved lenses and mirrors to observe the Universe. A team of researchers has ...

For centuries, the optic lens has bent light through translucent, curved material, but now flat lenses are reimagining the ...

Pronounced "fraynel zone." The pattern of electromagnetic radiation that is created by a transmitting station from its antenna to receiving antennas. It is in the shape of an ellipsoid, or 3D ...

While not useful for cameras, the fresnel lens came around this time in 1818 ... built into the screens allowing for a wider field of view with less weight and bulk. The future certainly holds ...