Light travels at different speeds based on the medium it passes through. For example, in a vacuum, it travels at 3.0 × 10^8 m/s in a straight line. But when directed towards glass, air, diamond, water ...

Not an aberration: schematic drawing of the metalens (left), which is made of tiny titanium waveguides. The drawing on the right is of a single waveguide. (Courtesy Boubacar Kanté) A new type of ...

SEAS researchers have developed a so-called metacorrector, a single-layer surface of nanostructures that can correct chromatic aberrations across the visible spectrum and can be incorporated into ...

Designed with new manufacturing technology that creates lenses with shapes that are difficult to fabricate using other methods, Olympus’ new X Line™ series objectives and the UPLAPO-HR objectives for ...

A new type of flat, ultrathin lens designed to be free of chromatic aberrations has been developed by researchers in the US. The device has a variety of potential applications, from ultralight imaging ...

Apochromatic (APO): A lens group designed to correct chromatic aberrations for three wavelengths (usually red, green, and blue) rather than just one or two. Aspheric: A lens element with a ...

Charles Arthur Birch-Field, who is no crackpot, last month advertised that from ordinary black & white pictures on photographic film he could get the colors of the original scenes. Greying, Ohio-born ...

After hearing positive reports of Wearality’s 150 degree VR lenses, I was excited to try them for myself. Having done so, I came away with a sense that, barring entirely new ways of bending light, ...