Method and lidar device for scanning a scanning area using beams having an adjusted wavelength

A LIDAR device for scanning a scanning area, the LIDAR device comprising:

• at least two beam sources;
• a generating optics;
• a receiver;
• and
• an optical bandpass filter;
• wherein:
• each of the at least two beam sources is configured to generate at least one respective beam having a wavelength that is adjustable depending on an emission angle of the at least one beam;
• the generating optics is configured to shape at least one of the generated beam;
• the receiver is configured to receive and evaluate at least one beam that is reflected by an object;
• and
• the optical bypass filter is configured to absorb spurious reflections.

A method for scanning a scanning area using a LIDAR device that includes at least two beam sources, a generating optics, a receiver, and an optical bypass filter, the method comprising:

• using the at least two beam sources, generating at least two beams;
• using the generating optics, shaping the at least two beams and then emitting each of the at least two beams at a respective emission angle, wherein respective wavelengths of the emitted beams depend on their respective emission angles;
• deflecting the emitted the at least two beams;
• receiving, by the receiver, a beam reflected by an object after the reflected beam is filtered through the optical bypass filter.