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Help CenterPingzhi Optics 905nm Filter for Navigation and Obstacle Avoidance of Sweeping Robots, Lidar Bp905
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The reasons why lidar uses 905nm optical filters as the laser light source are as follows:
1. The laser technology with a wavelength of 905nm has developed rapidly, and there are currently many mature technical solutions for matching use.
2. The laser beam emitted by the 905nm optical filter propagates relatively stably in the air.
Optical characteristics of the band-pass filter: The higher the cut-off rate OD value, the narrower the passband width. At the same time, because the reflectivity of the cut-off film layer is higher, the absorption and scattering will also be greater. Therefore, the peak transmittance of the band-pass filter will also decrease. In the all-dielectric band-pass filter, if the transmittance of the film layers on the two surfaces is not equal, it will also affect the reduction of the passband transmittance of the optical filter.
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