An optical scanning device includes an optical mode converter to change, in accordance with a change in wavelength of a light output from a light source or phase of the light output from the light source, a radiation direction of the light, and an actuator to rotate the optical mode converter about each of two shafts orthogonal to each other.

A light detection and ranging (LIDAR) device according to one embodiment of the present disclosure includes: a light transmitting unit including a plurality of laser transmission channels for transmitting laser light for detecting an external object in an allocated transmission time slot; a light receiving unit including a plurality of laser reception channels for receiving the laser light reflected by the external object in a reception time slot allocated to correspond to the transmission time slot, N laser reception channels (N is a natural number greater than or equal to 2) being allocated to each of the reception time slots; and a signal amplification unit configured to sequentially amplify the laser light received by the light receiving unit according to the order of the reception time slots, and having N channels allocated in one-to-one correspondence with the N laser reception channels for each of the reception time slots.

According to one aspect, a lidar system is a lidar system which includes one set of mechanical, e.g., optical, components, and two or more sets of electrical and/or software components. The beams which are provided by the optical components are effectively alternated between a first and second sets of electrical and/or software components. The redundancy provided by the first and second sets of electrical and/or software components allows the lidar system to remain operational in the event that one set of electrical and/or software components becomes non-operational.

A multi-laser bore-sighting riflescope system can receive a first laser beam having a first wavelength and a second laser beam having a second wavelength smaller than the first wavelength. The system can detect reflected light from the first laser beam. The system can calculate an initial range to a target. The system can determine a ballistics solution. The system can find a ballistics aimpoint. Further, the system can illuminate a display of a riflescope display assembly (RDA). The system can mark the ballistics aimpoint with an electronic reticle on the display. The system can redirect the first laser beam to the ballistics aimpoint. The system can redirect the second laser to the ballistics aimpoint. The system can detect secondary reflected laser light from the first laser beam. The system can calculate a secondary range to the target.

A laser radar includes: a light source including a laser diode; an optical system configured to shape laser light emitted from the laser diode, into a line beam that is long in one direction, and project the line beam to a target area; and a scanner configured to perform scanning with the line beam in a short side direction of the line beam. The laser diode is disposed such that a fast axis of the laser diode extends along a direction corresponding to the short side direction of the line beam.

A control method for light sources of a vision machine and the vision machine. The control method includes the following steps: activating at least one first light source among n light sources to sense spatial information of an object in a field of view; and selectively activating the n light sources according to the spatial information of a sensed object; wherein the n light sources are distributed on a periphery of a front mirror surface of a lens of the vision machine, and n is a natural number greater than or equal to 2. The embodiment of the present disclosure enlarges the field of view of the vision machine, capable of providing corresponding light illumination based on environmental requirements, reducing the interference signal caused by reflection of a single light source, expanding the sensing range of the vision machine, and improving the sensing ability.

Systems and methods for operating a mobile platform. The methods comprise, by a computing device: obtaining a LiDAR point cloud; using the LiDAR point cloud to generate a track for a given object in accordance with a particle filter algorithm by generating states of a given object over time (each state has a score indicating a likelihood that a cuboid would be created given an acceleration value and an angular velocity value); using the track to train a machine learning algorithm to detect and classify objects based on sensor data; and/or causing the machine learning algorithm to be used for controlling movement of the mobile platform.

Techniques for determining bathroom occupancy are disclosed herein. In this regard, one or more sensors may determine whether a plumbing fixture is in use. When a plumbing fixture is in use, the one or more sensors may trigger a visual cue that indicates that the plumbing fixture is in use. Additionally, the one or more sensors may send (e.g., transmit) information indicating that the plumbing fixture is in use to one or more computing devices. The information may include a start time of the fixture's usage, an end time of the fixture's usage, a duration of the fixture's usage, etc. The computing device may analyze the information from a plurality of fixtures associated with a location and present the analysis to a user, for example, via a dashboard.

Methods and systems for performing multiple pulse LIDAR measurements are presented herein. In one aspect, each LIDAR measurement beam illuminates a location in a three dimensional environment with a sequence of multiple pulses of illumination light. Light reflected from the location is detected by a photosensitive detector of the LIDAR system during a measurement window having a duration that is greater than or equal to the time of flight of light from the LIDAR system out to the programmed range of the LIDAR system, and back. The pulses in a measurement pulse sequence can vary in magnitude and duration. Furthermore, the delay between pulses and the number of pulses in each measurement pulse sequence can also be varied. In some embodiments, the multi-pulse illumination beam is encoded and the return measurement pulse sequence is decoded to distinguish the measurement pulse sequence from exogenous signals.

The present invention relates to a light detection and ranging (LiDAR) system. The LiDAR system may include a transceiver configured to generate pieces of light having different wavelengths and receive pieces of reflected light having different wavelengths reflected from a target, a beam splitter configured to divide the pieces of light having the different wavelengths into long-wavelength light having a relatively long wavelength and short-wavelength light having a relatively short wavelength, and a scan mirror configured to transmit the long-wavelength light and the short-wavelength light, which are divided by the beam splitter, to an outside and allow reflected light of the long-wavelength light and reflected light of the short-wavelength light to be incident on the transceiver through the beam splitter.