3DEO, Inc. @3deolidar.bsky.social · 03/03/2026Geiger-mode vs. linear-mode lidar — what’s the difference? Linear-mode lidar sweeps a pulsing laser beam back and forth over an area of interest, requiring about 300 photons to get above noise and identify returns. 100
3DEO, Inc. @3deolidar.bsky.social · 03/03/2026Geiger-mode lidar is similar, but the laser illuminates a GM camera which requires only about 20 photons per return to reliably identify a surface. Using a Geiger-mode camera for optical imaging instead of a narrow laser beam enables agile geo-referenced scanning. 100
