img_blogentry_hero

SENSOR-SYNCHRONIZED SPECTRALLY-STRUCTURED-LIGHT IMAGING

9,060,113

6/16/2015 12:00:00 AM

A smartphone is adapted for use as an imaging spectrometer, by synchronized pulsing of different LED light sources as different image frames are captured by the phone's CMOS image sensor. A particular implementation employs the CIE color matching functions, and/or their orthogonally transformed functions, to enable direct chromaticity capture. A great variety of other features and arrangements are also detailed.