Often when we talk about camera sensors we talk about “buckets” collecting “photons of light”. But talking about buckets is looking at the sensor mechanism from a bird’s eye view.
If you want a deeper understanding of how camera sensors work, Filmmaker IQ is giving a terrific lecture that goes down all the way to the physics and chemistry of collecting light and turning it into data.
You been warned that you will need to cope with Tetrahedral Crystals, Doping, PN Junctions and a few other electrical, chemical and engeneering terms. Nonetheless this is one of the more approchable lectures on the fine details of sensor-works.
// end geek alert
[The Science of Camera Sensors | Filmmaker IQ]