Lenses are crucial to light-enabled technologies. Conventional lenses have been perfected to achieve near-diffraction-limited resolution and minimal chromatic aberrations. However, such lenses are ...

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 ...

Access Fixtures' new HIIO high bay features a refractor lens for superior glare control. It offers selectable wattage and Kelvin for total flexibility. This new refractor lens for high bay fixtures ...

Like many observers I’ve talked to through the years, I always have had a special place in my heart for a small refractor. Refracting telescopes use lenses to bring light to a focus and are the oldest ...

Researchers are making progress toward a “perfect lens” that will be able to resolve an organelle assembling a protein or a virus attacking a cell. From ribosomes assembling proteins to viruses ...

From ribosomes assembling proteins to viruses attacking cells, the main dramas in biology happen on a scale that is, tantalizingly, just one order of magnitude below the resolution of the best optical ...

To an amateur astronomer, nothing says flexibility like a good refractor. That’s why I jumped at the chance to review the William Optics GT102 102mm f/6.9 Apo Refractor. Perfect for grab-and-go ...