A system for increasing lidar sensor coverage for use by a vehicle is described herein. The system includes a two lidar sensors oriented to emit light beams toward a surface proximate the vehicle. The system also includes at least one mirror associated with each lidar sensor configured to reflect light beams emitted away from the surface. The at least one mirror reflects the light beams toward the surface, thereby increasing lidar sensor coverage associated with the respective lidar sensor. The lidar sensors receive lidar returns, either directly from the surface or reflected off the mirror and may generate sensor data associated with an area proximate the vehicle. A vehicle computing system controls the vehicle based in part on the sensor data.

A system for increasing lidar sensor coverage for use by a vehicle is described herein. The system includes a two lidar sensors oriented to emit light beams toward a surface proximate the vehicle. The system also includes at least one mirror associated with each lidar sensor configured to reflect light beams emitted away from the surface. The at least one mirror reflects the light beams toward the surface, thereby increasing lidar sensor coverage associated with the respective lidar sensor. The lidar sensors receive lidar returns, either directly from the surface or reflected off the mirror and may generate sensor data associated with an area proximate the vehicle. A vehicle computing system controls the vehicle based in part on the sensor data.

According to various embodiments, a solid-state light detection and ranging (LiDAR) transmitter includes a tunable optical metasurface to selectively steer incident optical radiation long an azimuth axis. In some embodiments, different subsets of lasers in an array of lasers are activated to generate optical radiation for incidence on the metasurface at different angles of incidence on an elevation axis for unsteered deflection by the metasurface at corresponding angles of elevation. In some embodiments, a prism is positioned relative to the tunable optical metasurface to deflect the optical radiation from the optical assembly by the optical radiation source for incidence on the metasurface at an angle of incidence that is between the first steering angle and the second steering angle, such that the optical radiation incident on the metasurface and the steered output optical radiation from the metasurface spatially overlap within the prism.

A method for calibrating a LIDAR system proposes incorporating in the LIDAR system a reference optical path which is formed from an optical fiber. The length of the optical fiber determines a measurement reference value, which can then be used to evaluate distances of targets to be characterized using the LIDAR system. The calibration method is simple and economical to implement. It may be used in particular for a LIDAR system which is designed to perform air speed measurements, in particular on board an aircraft.

A silicon photonic chip-based LiDAR, comprising a silicon photonic chip (2), a laser module, a beam collimator module (4), and a signal processing module (6), where the laser outputs a frequency modulated continuous laser and transmits the frequency modulated continuous laser to the silicon photonic chip (2), where the laser is split and transmitted in the silicon photonic chip (2) to form a reference interference light and a local oscillation light on the one hand, and the split laser is transmitted to the target (5) via the beam collimator module (4), and then the reflect light of the reference interference light is received to interfere with the local oscillation light to form a measurement interference light on the other hand; and the reference interference light and the measurement interference light are photoelectrically detected in the silicon photonic chip (2) and form an electrical signal being output to the signal processing module (6) to obtain the distance and speed of the target. The silicon photonic chip (2) integrates most of fiber transmission optical paths, coupling devices, and an optical detector, making the LiDAR system highly integrated and miniaturized. Therefore, a silicon photonic chip based LiDAR is characterized by high integration, small size, light weight, simple manufacture, and superior system stability and reliability.

A light detection and ranging, LIDAR, system. The system comprises a set of long range channels and a set of short range channels Each channel comprises an illumination source. The illumination sources of the short range channels are each configured to illuminate a respective spatial region defined by a first solid angle from the respective illumination source. The illumination sources of the long range channels are each configured to illuminate a respective spatial region defined by a second solid angle from the respective illumination source. The first solid angle is larger than the second solid angle and an intensity of each illumination source of the long range channels is greater than an intensity of each illumination source of the short range channels. The set of short range channels are configured to detect objects within a first field of view, and the set of long range channels are configured to detect objects within a second field of view.

A motor vehicle, in particular for a passenger car, having a support structure, a roof skin, which is disposed on the support structure, and at least one sensor module having at least one environment sensor for detecting a vehicle environment and having at least one housing for accommodating the environment sensor. The housing of the sensor module is disposed on the support structure and has a construction which collapses or is deformed when defined external forces are applied such that deformation forces, which are exerted by the sensor module on the support structure or on another roof module component, are reduced.

Disclosed are a lidar, and a detection method for the lidar. The lidar includes a plurality of laser transceiver module groups, each configured to be integrated with at least one laser transmitting end and at least one laser receiving end, and a scanning module. The plurality of laser transceiver module groups are arranged in a distributed manner relative to the scanning module, and an at least partially stitched field of view of the lidar is formed by sub-fields of view correspondingly formed by the plurality of laser transceiver module groups. Further disclosed are a lidar and a manufacturing method for the lidar. The lidar includes a laser transmitting end, a laser receiving end, a scanning module and an isolation mechanism. A scanning component of the scanning module is constructed as a rotatable plate-shaped double-faceted mirror or a rotatable prism.

A light module has a carrier with a circuit die. On the top side of the carrier, a light-emitting diode die, and a charge store component are electrically connected to the conduction path terminal fields of a transistor by means of die-to-die bondings. The electrical connection between the two dies and the conduction path of the transistor is as short as possible. A terminal field is situated in each case on the top side of the two dies, which terminal fields are connected to one another using a first bonding wire. The charge store component is charged by means of a charging circuit which is electrically connected to the charge store component via a second bonding wire. The second bonding wire is longer than the first bonding wire. The light module may be part of a LIDAR apparatus.

The present invention relates to a laser positioning apparatus and a laser positioning method, the laser positioning apparatus comprises a laser emitting module configured to generate a first laser; a laser direction adjusting module configured to adjust the first laser to a second laser in a first direction and a third laser in a second direction perpendicular to the first direction; a distance determining module configured to receive the laser reflected or diffused back by the second laser on a surface of a first object to be measured to determine a distance from the laser positioning apparatus to the first object to be measured, and/or receive the laser reflected or diffused back by the third laser on a surface of a second object to be measured to determine a distance from the laser positioning apparatus to the second object to be measured.