** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** The latest innovations in laser ...

Ever wonder why projector systems and televisions doesn’t use laser illumination? It isn’t for safety reasons, and it isn’t for efficiency reasons—laser diodes have efficiencies ranging from 30 to 50 ...

Green laser pointers have become a popular consumer item, delivering light that's brighter to the eye than red lasers, but stories have circulated on the Web about the potential hazards of inexpensive ...

How innovations in visibility, usability, and smart sensing are changing who uses tools—and how. For centuries, measurement tools have been essential to architecture, engineering, construction, real ...

Closing the green gap Series of visible-light colours generated by a microring resonator. (Courtesy: S Kelley/NIST) On-chip lasers that emit green light are notoriously difficult to make. But ...