Choosing between 905 nm vs 1550 nm LiDAR optical filters is not simply a matter of moving the center wavelength of the same bandpass filter. The two wavelengths are associated with different laser sources, detector materials, eye-safety constraints, ambient-light conditions and receiver architectures. Those differences…
1550 nm Narrow Bandpass Filter for LiDAR: How to Specify the Receiver Filter A 1550 nm narrow bandpass filter for LiDAR (Light Detection and Ranging) sits directly in front of the InGaAs (indium gallium arsenide) detector, and it has exactly one job: discard solar photons…
Telecentric F-Theta Lens vs Standard F-Theta Lens: Engineering Differences and Selection A telecentric F-theta lens vs standard F-theta lens comparison is mainly a question of beam geometry at the workpiece. Both lens types can be designed for a substantially flat scanning field and approximately linear…
