Patent ID: 11892569
Assignee: MICROVISION, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A device for optical distance measurement, the device comprising:
a transmission unit adapted to transmit measuring pulses;
a reception unit, the reception unit including at least one reception element adapted to receive reflections of the measuring pulses to determine a time-of-flight measurement from the received reflections, and wherein a sensitivity curve describes a sensitivity of at least one of the at least one reception element as a function of distance to an object; and
an evaluation unit adapted to
generate a backscatter curve, wherein the backscatter curve describes signals generated responsive to the received reflections of at least one measuring pulse;
determine a correlation between the sensitivity curve and the backscatter curve; and
determine whether at least one section in the backscatter curve indicates a particle cloud arranged in a measuring range that was measured by the time-of-flight measurement or indicates an object in the measuring range that was measured by the time-of-flight measurement based on the determined correlation.