Abstract: The present disclosure relates to light detection and ranging (LiDAR) systems, such as LiDAR sensors detecting objects with various reflectivities at various distances. An optical detection system includes a transmitter for emitting at least one beam of optical radiation, a receiver including an imaging processor and an anamorph prism system, and at least one scanner for guiding the at least one beam along a scan direction across a target scene and/or guiding a reflected optical radiation of the at least one beam from the target scene to the receiver. The anamorph prism system is configured to produce a processed beam by compressing the reflected optical radiation in a predefined direction by a predefined factor. The imaging processor includes a two-dimensional detector and is configured to generate an image based on the processed beam on the two-dimensional detector, the image having an aspect ratio that is based on the predefined factor.

Abstract: A method for optical distance measurement, comprising a creation of at least one frame, including determining 3D information of at least one subregion of a measuring region. A time budget for creating the frame is split between a first phase for assessing at least one region of interest, and a second phase for determining 3D information from the at least one region of interest. During the first phase a plurality of measuring pulses is emitted by a transmitting unit, and reflected measuring pulses are received by a receiving unit, wherein 2D information of the measuring region is determined, wherein at least one region of interest is assessed from the 2D information. During the second phase a plurality of measuring pulses is emitted by a transmitting unit, and reflected measuring pulses are received by the receiving unit, wherein 3D information of the at least one region of interest is determined as part of the second phase.

Abstract: A receiver assembly for receiving light pulses, a lidar module containing such a receiver assembly, and a method for receiving light pulses are proposed. There is at least one photosensitive receiver (SPAD) therein, which converts the light pulses into an electric signal. An evaluation circuit is connected to the receiver, which determines a distance between the receiver assembly and at least one object that reflects the light pulses from the electric signal, by means of a time-correlated photon counting with at least one histogram, via a time of flight of the light pulse. The evaluation circuit is configured to reduce the resolution of the distance determination starting at no further than a predetermined distance.

Abstract: A method for optical distance measurement, comprising a creation of at least one frame, including determining 3D information of at least one subregion of a measuring region. A time budget for creating the frame is split between a first phase for assessing at least one region of interest, and a second phase for determining 3D information from the at least one region of interest. During the first phase a plurality of measuring pulses is emitted by a transmitting unit, and reflected measuring pulses are received by a receiving unit, wherein 2D information of the measuring region is determined, wherein at least one region of interest is assessed from the 2D information. During the second phase a plurality of measuring pulses is emitted by a transmitting unit, and reflected measuring pulses are received by the receiving unit, wherein 3D information of the at least one region of interest is determined as part of the second phase.

Abstract: A receiver assembly for receiving light pulses, a lidar module containing such a receiver assembly, and a method for receiving light pulses are proposed. There is at least one photosensitive receiver (SPAD) therein, which converts the light pulses into an electric signal. An evaluation circuit is connected to the receiver, which determines a distance between the receiver assembly and at least one object that reflects the light pulses from the electric signal, by means of a time-correlated photon counting with at least one histogram, via a time of flight of the light pulse. The evaluation circuit is configured to reduce the resolution of the distance determination starting at no further than a predetermined distance.