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 ...

Figure 1. The two chromatic aberrations (in exaggerated form for visibility) for selected RGB wavelengths. Click here to see an enlarged diagram. In the last paper of this article series, optical ...

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 ...

NEWARK, N.J. Panasonic said it will be presented with a Technology and Engineering Emmy Award for 2013 by the National Academy of Television Arts & Sciences. The honor is being conferred upon ...

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 ...

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 ...

Canon has a new 35mm L-Series pro lens, the EF 35mm f/1.4L II USM, but it isn’t just another full-frame wide-angle lens. It is the first to utilize Canon’s new Blue Spectrum Refractive Optics, or BR ...

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 ...

For centuries, telescopes have relied on curved lenses and mirrors to observe the Universe. A team of researchers has recently developed a flat, lightweight lens capable of capturing precise color ...

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 ...