US 11,860,310 B2
Emitter device for an optical detection apparatus, optical detection apparatus, motor vehicle and method
Lin Lin, Bietigheim-Bissingen (DE); Peter Horvath, Bietigheim-Bissingen (DE); and Thomas Schuler, Bietigheim-Bissingen (DE)
Assigned to VALEO SCHALTER UND SENSOREN GMBH, Bietigheim-Bissingen (DE)
Appl. No. 16/334,997
Filed by Valeo Schalter und Sensoren GmbH, Bietigheim-Bissingen (DE)
PCT Filed Sep. 19, 2017, PCT No. PCT/EP2017/073556
§ 371(c)(1), (2) Date Mar. 20, 2019,
PCT Pub. No. WO2018/054870, PCT Pub. Date Mar. 29, 2018.
Claims priority of application No. 10 2016 117 851.9 (DE), filed on Sep. 22, 2016.
Prior Publication US 2019/0277951 A1, Sep. 12, 2019
Int. Cl. G01S 7/481 (2006.01); G01S 7/497 (2006.01); G01S 17/42 (2006.01); G02B 26/10 (2006.01); G01S 17/931 (2020.01)
CPC G01S 7/4817 (2013.01) [G01S 7/4813 (2013.01); G01S 7/4815 (2013.01); G01S 7/497 (2013.01); G01S 17/42 (2013.01); G01S 17/931 (2020.01); G02B 26/10 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An emitter device for an optical detection apparatus of a motor vehicle configured to scan a surrounding region of the motor vehicle by a light beam, comprising:
a light source for emitting the light beam; and
a guiding unit for guiding the light beam emitted onto the guiding unit by the light source at different scanning angles,
wherein the light source for emitting the light beam comprises at least two separately drivable emitter elements, which are configured to emit the light beam onto the guiding unit at angles of incidence corresponding to predetermined setpoint values of the scanning angle to generate a predetermined setpoint field of view of the emitter device,
wherein the guiding unit comprises a tiltable mirror, which is configured in order to guide the light beam emitted by the respective emitter element at the setpoint value for the scanning angle which corresponds to the respective angle of incidence, and
wherein the angles of incidence of the light beam, which are provided by the emitter elements, are predetermined as a function of tilt angles of the tiltable mirror,
wherein the tiltable mirror has a characteristic transfer function, by which a distortion of an actual field of view generated by the tiltable mirror with respect to the setpoint field of view is described as a function of tilt angles of the tiltable mirror, and
the emitter elements are driven via a drive strategy so that an inverse of the characteristic transfer function is provided by the angles of incidence.