Here you can see an experimental setup for the demonstration of very fast 2D Code Scanning. The scanners used are the Keyence models SR-610 and the SR-1000, both triggered by a laser light beam photocell. The fastest scanning frequency in this video is 28 Codes per Second (the SR-1000 manages to do that, but not the SR-610).
Scanners like these are used in automated production lines, for scanning barcodes on fast running products like plastic containers, bottles or paper envelopes (mail).
If you ever wanted to see high speed scanning magic in action, this is your film.
