Physicists and vision scientists are lining up behind a provocative claim: the rich color we call purple is not a property of light at all, but a story the brain tells itself. Light in the real world ...

Pablo Picasso's surreal cubist artistic style shifted common features into unrecognizable scenes, but a new imaging approach bearing his namesake may elucidate the most complicated subject: the brain.

Gigahertz-Optik introduces a handy inexpensive spectral light & color meter for conventional and LED light source qualification and comparison. The compact MSC15 spectral light & color meter measures ...