a) Illustration of the omnidirectional wavelength-tunable color device featuring a mechanochromic chiral liquid crystal elastomer (CLCE) and an electrically deformable dielectric elastomer actuator ...

Scientists have used a new lens to focus all the colors of the rainbow into one point. This is the first time a single lens has been used to focus the entire spectrum of light, including white light.

Thanks to a genetic manipulation, three color-blind mice recently gained the ability to see the world in the same hues as humans do. Mice and nonprimate mammals—much like color-blind people—see ...

Cathodoluminescence (CL) microscopy is a highly effective and respected microanalysis tool in geosciences. This tool works by analyzing the light emitted by a mineral or gemstone, which is excited by ...

For example, the coatings on tinted eyeglasses reflect, or "block out," harmful blue light and ultraviolet rays. But until now, no optical coating had ever been developed that could simultaneously ...