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940 nm single-point LiDAR sensors
Every 940 nm model in the catalogue in one table, with the manufacturer's test conditions on each model page. 1 modules in this band.
| Model | Max range | Accuracy | Mass | Interface |
|---|---|---|---|---|
| LRF10VB | 9 m | ±0.05 m | 1 g | UART-TTL |
What the 940 nm band is for
940 nm sits inside the silicon response but pulls slightly further from the visible, which helps daylight background rejection and lets the emitter stay inconspicuous. These are short-range single-point sensors, 9–50 m, tens of Hz to a few hundred.
What changes with the band
| 905 nm | 940 nm | 1535 nm | |
|---|---|---|---|
| Detector | Silicon APD / SiPM | Silicon, slightly lower quantum efficiency | InGaAs APD |
| Typical module mass | 1–20 g | 1–2 g | 14–410 g |
| Typical update rate | 20 Hz – 1 kHz | 50–200 Hz | 0.5–10 Hz |
| Published range band | 20 m – 3 km | 9–50 m | 3–23 km |
| Eye safety basis | Retinal hazard — low pulse energy cap | Same as 905 nm | Corneal absorption — far higher cap |
940 nm buys two things over 905 nm: a narrowband filter is more effective against daylight background, and a low-power emitter is visually quieter. It does not change the eye-safety argument — 940 nm is still focused by the eye, so pulse energy stays capped and range stays short. What it costs is quantum efficiency: slightly less return for the same optics and power.