A transmitting unit of a LIDAR device includes at least two radiation sources for generating and emitting punctiform or linear electromagnetic beams into a scanning range, at least one of the radiation sources including an operating temperature settable as a function of an emission angle of the electromagnetic beams generated by the at least one radiation source. The different operating temperatures can generate beams having angle-dependent emission wavelengths, which can result in an improvement of the signal-to-noise ratio of a LIDAR device.

The present disclosure provides a laser projection component and a detection method thereof, and an electronic device. The laser projection component is applicable to the depth camera component and is configured to project a laser pattern. The detection method includes: obtaining the laser pattern; determining whether a preset identifier exists in the laser pattern; and determining that the depth camera component is abnormal when the preset identifier does not exist in the laser pattern.

The present disclosure provides a laser projection component and a detection method thereof, and an electronic device. The laser projection component is applicable to the depth camera component and is configured to project a laser pattern. The detection method includes: obtaining the laser pattern; determining whether a preset identifier exists in the laser pattern; and determining that the depth camera component is abnormal when the preset identifier does not exist in the laser pattern.

A system for calibrating a light detection and ranging (LiDAR) sensor comprises an optical transmission source, a coarse adjustment optically coupled to the optical transmission source, an optical device optically coupled to the coarse adjustment, a fine adjustment optically coupled to the optical device, and a lens optically coupled to the fine adjustment. Light from the optical transmission source passes through the coarse adjustment, the optical device, the fine adjustment, and the lens to illuminate a LiDAR sensor under test. Further, a single optical transmission source, coarse adjustment, and optical device may be coupled to a splitter to test multiple LiDAR sensors at once, where each LiDAR sensor is associated with an individually controlled fine attenuator and an individually controlled variable lens.

A system for calibrating a light detection and ranging (LiDAR) sensor comprises an optical transmission source, a coarse adjustment optically coupled to the optical transmission source, an optical device optically coupled to the coarse adjustment, a fine adjustment optically coupled to the optical device, and a lens optically coupled to the fine adjustment. Light from the optical transmission source passes through the coarse adjustment, the optical device, the fine adjustment, and the lens to illuminate a LiDAR sensor under test. Further, a single optical transmission source, coarse adjustment, and optical device may be coupled to a splitter to test multiple LiDAR sensors at once, where each LiDAR sensor is associated with an individually controlled fine attenuator and an individually controlled variable lens.

A laser safety system adapted to prevent inadvertent illumination of people and assets. The laser safety system configured to emit a laser beam with a laser and determine a path of a target object relative to the laser safety system. The laser safety system configured to cause the laser beam to illuminate the target object while the target object moves along the path.

A laser safety system adapted to prevent inadvertent illumination of people and assets. The laser safety system configured to emit a laser beam with a laser and determine a path of a target object relative to the laser safety system. The laser safety system configured to cause the laser beam to illuminate the target object while the target object moves along the path.

Techniques for optimizing a scan pattern of a LIDAR system including a bistatic transceiver include receiving first SNR values based on values of a range of the target, where the first SNR values are for a respective scan rate. Techniques further include receiving second SNR values based on values of the range of the target, where the second SNR values are for a respective integration time. Techniques further include receiving a maximum design range of the target at each angle in the angle range. Techniques further include determining, for each angle in the angle range, a maximum scan rate and a minimum integration time. Techniques further include defining a scan pattern of the LIDAR system based on the maximum scan rate and the minimum integration time at each angle and operating the LIDAR system according to the scan pattern.

An optical apparatus includes a deflector configured to deflect illumination light from a light source to scan an object, and configured to deflect reflected light from the object, a light guide configured to guide the illumination light form the light source to the deflector, and configured to guide the reflected light from the deflector to a light receiving element, an optical member having a reflective area that makes first light which is part of the illumination light from the deflector incident on the deflector by reflection, and a controller configured to obtain information regarding the deflector on the basis of information of the first light from the reflective area. In a cross-section including the optical path from the reflective area to the light guide, a width of the reflective area is smaller than a width of the illumination light on the reflective area.

Autonomously driven vehicles operate in rain, snow and other adverse weather conditions. An on-board vehicle sensor has a beam with a diameter that is only intermittently blocked by rain, snow, dust or other obscurant particles. This allows an obstacle detection processor is to tell the difference between obstacles, terrain variations and obscurant particles, thereby enabling the vehicle driving control unit to disregard the presence of obscurant particles along the route taken by the vehicle. The sensor may form part of a LADAR or RADAR system or a video camera. The obstacle detection processor may receive time-spaced frames divided into cells or pixels, whereby groups of connected cells or pixels and/or cells or pixels that persist over longer periods of time are interpreted to be obstacles or terrain variations. The system may further including an input for receiving weather-specific configuration parameters to adjust the operation of the obstacle detection processor.