A mobile device flash uses a semiconductor light-emitting element to optimize spectral power distribution.
An RGB-IR filter array separates visible and infrared bands on a single sensor, eliminating multiple cameras to reduce system size and cost.
A color filter array uses a cyclic 3x3 pattern with green filters at corners and center to improve high-frequency reproducibility.
A dual-layer imaging sensor combines upper and lower photoelectric conversion layers to utilize incident light across the visible spectrum.