[youtube= [Kyri] has made a simple circuit to do color detection using an RGB LED. Simply set the LED to the color you want to detect then wave the object over it. Another LED will light up if the … ...

A researcher has developed a new technique to detect long wave infrared (LWIR) photons of different wavelengths or 'colors.' The new detection and imaging technique will have ...

Contrast and luminescence Sensors are usually the ‘go to’ device for reliable detection of print marks and colour variances even at very low contrasts and are typically used for applications such as ...

Japanese scientists create a self-powered artificial eye using solar cell tech, accurately detecting colour and motion, promising efficient sensors and devices.

Additionally, once the materials change color, that color change is irreversible, another first. The current standard for chemical threat detection using color change is M8 paper.