Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on amateur telescopes.

Scientists have developed an impossibly thin telescope lens that addresses a key astronomical challenge in a new study funded by NASA and DARPA.

Different techniques of intraocular lens removal are required depending on the type of intraocular lens, the indication for removal, the location of the intraocular lens, and the presence of co ...

Engineering is all about trade-offs, and that’s especially true in VR headset design. Pancake lenses are compact units that rely on polarization to bounce light around internally, resulting in a ...

"Our computational techniques suggested we could design multi-level diffractive flat lenses with large apertures that could ...

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...