For hundreds of years, the principle behind the telescope has been as simple as it gets: build a lens or mirror to collect a large amount of light, focus that light onto a detector (like an eye, a ...

Kenko has announced the second version of its 400mm f/8 telephoto mirror lens. The new version features optical tweaks to improve image quality, compared to the previous model (which came out in July ...

Modern-age telescopes have offered us a tantalizing view of what lies in the vast expanse of space, while also giving us glimpses of the universe’s past. However, making telescopes that can peek deep ...

LEWISVILLE, Texas, Jan. 13, 2026 /PRNewswire/ -- HOYA ® Vision Care, a global leader in ophthalmic lens technology, is redefining the patient experience with the launch of the HOYA LensPreview™, an ...

A new approach for concentrating photovoltaic systems gets rid of mechanical sun trackers, making this design a contender for sunny rooftops across the world, a recent report shows. Current strategies ...