Photometers or light meters are radiometers that include a filter and photodiode and responds based on the average human eye: the CIE 1924 luminosity function V λ. However, the light sensitive diode ...

If there’s an engineering hierarchy of LED lighting, colour-mixing hard lights are at the top of it, combining all the difficulty of colour control with putting all the emitters in one place. For a ...

CAMBRIDGE, England, June 13 (UPI) --Researchers have mixed molecules with light at room temperature. It's the first time such a feat has been accomplished. Scientists did so by trapping a colored dye ...

How matter responds to light lies at the core of vision, photosynthesis, solar cells, and many other fields of scientific and practical import. But until now, it hasn't been possible to see just how ...

A multicolor laser pointer you can use to change the color of the laser with a button click -- similar to a multicolor ballpoint pen -- is one step closer to reality thanks to a new tiny synthetic ...

Digital signal processing, holography, and quantum and classical information processing rely heavily upon recording the amplitude and phase of coherent optical signals. One method for achieving ...

image: Researchers at the University of Pennsylvania have engineered a nanowire system that could pave the way for photonic computing, combining two light waves to produce a third with a different ...

When we discuss colour in filmmaking, we're usually interested being – well – correct. But we might also talk about the steel blue of night, an amber sunset, or the greenish tinge that comes from ...

ALBUQUERQUE, N.M. -- A multicolor laser pointer you can use to change the color of the laser with a button click -- similar to a multicolor ballpoint pen -- is one step closer to reality thanks to a ...