US 12,248,096 B2
Distance-measuring unit with a detection field subdivided into a plurality of receiver solid angle segments
Andre Nauen, Regensburg (DE); Sergey Khrushchev, Regensburg (DE); and Christian Gammer, Traitsching (DE)
Assigned to OSRAM Beteiligungsverwaltung GmbH, Grünwald (DE)
Appl. No. 17/048,664
Filed by OSRAM GMBH, Munich (DE)
PCT Filed Mar. 13, 2019, PCT No. PCT/EP2019/056211
§ 371(c)(1), (2) Date Oct. 19, 2020,
PCT Pub. No. WO2019/201515, PCT Pub. Date Oct. 24, 2019.
Claims priority of application No. 10 2018 206 014.2 (DE), filed on Apr. 19, 2018.
Prior Publication US 2021/0165078 A1, Jun. 3, 2021
Int. Cl. G01S 7/481 (2006.01); G01S 17/42 (2006.01); G01S 17/931 (2020.01)
CPC G01S 7/4815 (2013.01) [G01S 7/4817 (2013.01); G01S 17/42 (2013.01); G01S 17/931 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A distance measuring unit for measuring, on basis of a time-of-flight signal, a distance to an object situated in a detection field, the distance measuring unit comprising:
an emitter unit for emitting pulses in form of electromagnetic radiation;
a receiver unit comprising a sensor area for receiving the electromagnetic radiation in form of echo pulses, and a mirror unit disposed upstream of the sensor area,
wherein the detection field of the receiver unit is subdivided into a plurality of receiver solid angle segments,
wherein the plurality of receiver solid angle segments are assigned to the same sensor area in that echo pulses incident on the mirror unit from a respective receiver solid angle segment are reflected onto the sensor area when the mirror unit is in a tilt state associated with the respective receiver solid angle segment,
wherein the mirror unit comprises a plurality of mirror areas configured to tilt independently of one another, and
wherein each of the mirror areas is assigned to a respective receiver solid angle segment such that, in a respective tilt position of the respective mirror area, a respective echo pulse from the respective receiver solid angle segment is reflected onto the sensor area at the respective mirror area; and
a common optical unit positioned between the sensor area and the plurality of mirror areas.