Schematic diagram of the pupil light reflex showing negative feedback... | Download Scientific Diagram
Circuit diagram of the optical-feedback photodetection system. InGaAs... | Download Scientific Diagram
Low-noise and high-speed photodetection system using optical feedback with a current amplification function: Review of Scientific Instruments: Vol 86, No 9
A blue-light photoreceptor mediates the feedback regulation of photosynthesis | Nature
Example of light feedback in different situations. | Download Scientific Diagram
A simple yet counterintuitive optical feedback controller for spectrally tunable lighting systems