Scientists have created a compact spectral singlet lens that turns standard cameras into hyperspectral ones, reducing system ...

Future VR headsets could use a new type of lens inspired by holographic devices. The bilayer bifocal lens relies on external ...

The lens features a bilayer structure made of liquid crystal materials. Each layer responds differently to the applied electric field, splitting incoming light into oppositely polarized beams. Bifocal ...

the cornea or the lens internally the crystal lens. You know some aberration within that lens is typically what's causing the halo. The number one reason we see halos is patients have corrective ...

The traditional “spectrometer + lens” setups in hyperspectral cameras involve performance tradeoffs when the system is driven ...

A crystal radio is basically a high Q resonator tied to an antenna and an envelope detector. These days the envelope detector is a point contact diode such as a 1N34 Germanium diode. The resonant ...

Both monocrystalline (mono) and polycrystalline (poly) panels use crystalline silicon cells. However, the way these cells are manufactured differ for each type of panel. The “mono” in ...

Crystal skulls are not uncommon or terribly mysterious. Thousands are produced every year in Brazil, China, and Germany. But there are a handful of these rather macabre objects that have fueled ...

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The best iPhone lenses can quickly boost the quality of your smartphone photos and videos.

FOUR crystalline preparations of vitamin D have recently been described 1 having approximately equal antirachitic activities (20,000–25,000 International Units per milligram) and similar ...