Los Angeles based Lucera Labs has developed an IR sensor equipped alarm clock that wakes up people gently with a focused beam of LED light.

U.S. cities are overhauling old lighting systems with energy efficient LED streetlights, as the energy efficient lights are much brighter than conventional lights, energy efficient and provide higher cost-saving capacity. However, blue-rich LED lights can disrupt the circardian rhythm of humans, animals, and even plants according to an article by Earth Island Journal.