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The main differences are that
905 nm LiDAR is widely used due to its lower cost and better performance in rain and snow, but has eye safety concerns and shorter range, while 850 nm LiDAR offers higher sensitivity for longer range and better performance in low ambient light, but is more affected by humidity. 905nm is limited by the eye safety regulations, while 850nm is more susceptible to atmospheric interference, especially in humid conditions.
Feature 850 nm LiDAR905 nm LiDAR|
| Cost | Higher than 905 nm | Lower due to technical maturity | | Range | Potentially longer range due to higher sensitivity | Shorter range (up to approx. 200 meters) | | Eye Safety | Concerns with power limitations | Significant eye safety concerns; more power is needed to achieve the same range as 905 nm LiDAR, which can also be harmful | | Performance | Higher sensitivity for longer range and better resolution | Performs better in rain and snow | | Ambient Light | Better performance in low ambient light conditions (e.g., dawn, dusk, cloudy days) | More susceptible to solar interference during daylight | | Atmospheric | Higher sensitivity to humidity | Less affected by humidity, making it suitable for autonomous driving in humid environments |
The differences between 850nm and 905nm are significant in ...
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Nov 8, 2018 — There is as much as a 2x reduction in sensitivity just between 850 and 905 nm. Designing our system at 850 nm allows us...
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Oct 20, 2019 — Eye safety concern Moreover, today's time-of-flight lidar systems operate at 850 nanometer and 905 nanometer wavelengt...
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