Abstract: A LiDAR system comprising one or more tunable filters is provided. The one or more tunable filters can be tuned to compensate for wavelength shifts of light signals caused by ambient environmental changes. The LiDAR system includes a light source providing light signals, a signal steering system configured to direct the light signals to a field-of-view, and temperature monitoring circuitry configured to monitor a temperature shift of the light source. The temperature shift corresponds to a wavelength shift of the light signals from a first wavelength value to a second wavelength value. The system further comprises a tunable filter positioned in a receiving system configured to receive return light signals, and a motor configured to rotate the tunable filter by an angle based on the temperature shift such that a passband of the tunable filter matches the second wavelength value.

Abstract: The present disclosure describes a system and method for LiDAR scanning. The system includes a light source configured to generate one or more light beams; and a beam steering apparatus optically coupled to the light source. The beam steering apparatus includes a first rotatable mirror and a second rotatable mirror. The first rotatable mirror and the second rotatable mirror, when moving with respect to each other, are configured to: steer the one or more light beams both vertically and horizontally to illuminate an object within a field-of-view; redirect one or more returning light pulses generated based on the illumination of the object; and a receiving optical system configured to receive the redirected returning light pulses.

Abstract: Embodiments discussed herein refer to LiDAR systems that use avalanche photo diodes for detecting returns of laser pulses. The bias voltage applied to the avalanche photo diode is adjusted to ensure that it operates at desired operating capacity.

Abstract: A method and apparatus for generating text. The method comprises: receiving original text and an element tag (201); generating an encoded text feature vector, and an encoded sentence feature vector of each sentence in the original text; executing decoding steps comprising: determining a word attention weight of each word in the original text at the current moment on the basis of a hidden state vector of the decoder at the current moment and the encoded text feature vector (2031); determining a sentence attention weight of each sentence in the original text; determining a normalized word attention weight of each word in the original text at the current moment; and estimating a target word at the current moment; and generating target text on the basis of the target word output by the decoder at each moment (204).

Abstract: LiDAR system and methods discussed herein use ultrafast light pulses. Use of ultrafast light pulses can result in reduced power consumption compared to longer length or conventional light pulses.

Abstract: In accordance with some embodiments, a light detection and ranging (LiDAR) system comprises: a light source configured to generate a pulse signal from the LiDAR system; one or more mirrors configured to steer a returned light pulse associated with the transmitted pulse signal along an optical receive path; a field lens positioned along the optical receive path, wherein the field lens is configured to redirect the returned light pulse; a fiber having a receiving end configured to receive the returned light pulse from the field lens along the optical receive path; and a light detector configured to receive the returned light pulse from an end of the fiber opposite the receiving end.

Abstract: Embodiments discussed herein refer to LiDAR systems to focus on one or more regions of interests within a field of view.

Abstract: The present disclosure describes a system and method for coaxial LiDAR scanning. The system includes a first light source configured to provide first light pulses. The system also includes one or more beam steering apparatuses optically coupled to the first light source. Each beam steering apparatus comprises a rotatable concave reflector and a light beam steering device disposed at least partially within the rotatable concave reflector. The combination of the light beam steering device and the rotatable concave reflector, when moving with respect to each other, steers the one or more first light pulses both vertically and horizontally to illuminate an object within a field-of-view; obtain one or more first returning light pulses, the one or more first returning light pulses being generated based on the steered first light pulses illuminating an object within the field-of-view, and redirects the one or more first returning light pulses.

Abstract: The present invention discloses a device for enhancing the light transmittance of glass. The device comprises a lidar arranged inside a vehicle, and a wedge-shaped prism configured to be tightly fitted to the inside surface of the vehicle glass. The thicker end of the wedge-shaped prism is arranged at the lower side of the inside surface of the vehicle glass, and the emergent light of the lidar is emitted and returned through the wedge-shaped prism and the vehicle glass. According to the present invention, the incident angle of the laser on the glass surface is reduced by arranging the wedge-shaped prism on the inside surface of the vehicle glass, thereby enhancing the transmittance of the glass.

Abstract: A system for multimodal detection is provided. The system comprises a light collection and distribution device configured to perform at least one of collecting light signals from a field-of-view (FOV) and distributing the light signals to a plurality of detectors. The light signals have a plurality of wavelengths comprising at least a first wavelength and a second wavelength. The system further comprises a multimodal sensor comprising the plurality of detectors. The plurality of detectors comprises at least a light detector of a first type and a light detector of a second type. The light detector of the first type is configured to detect light signals having a first light characteristic. The light detector of the first type is configured to perform distance measuring based on light signals having the first wavelength. The light detector of the second type is configured to detect light signals having a second light characteristic.

Abstract: The present disclosure describes a system and method for LiDAR scanning. The system includes a light source configured to generate one or more light beams; and a beam steering apparatus optically coupled to the light source. The beam steering apparatus includes a first rotatable mirror and a second rotatable mirror. The first rotatable mirror and the second rotatable mirror, when moving with respect to each other, are configured to: steer the one or more light beams both vertically and horizontally to illuminate an object within a field-of-view; redirect one or more returning light pulses generated based on the illumination of the object; and a receiving optical system configured to receive the redirected returning light pulses.

Abstract: The present disclosure describes a system and method for coaxial LiDAR scanning. The system includes a first light source configured to provide first light pulses. The system also includes one or more beam steering apparatuses optically coupled to the first light source. Each beam steering apparatus comprises a rotatable concave reflector and a light beam steering device disposed at least partially within the rotatable concave reflector. The combination of the light beam steering device and the rotatable concave reflector, when moving with respect to each other, steers the one or more first light pulses both vertically and horizontally to illuminate an object within a field-of-view; obtain one or more first returning light pulses, the one or more first returning light pulses being generated based on the steered first light pulses illuminating an object within the field-of-view, and redirects the one or more first returning light pulses.

Abstract: The present disclosure describes a system and method for coaxial LiDAR scanning. The system includes a first light source configured to provide first light pulses. The system also includes one or more beam steering apparatuses optically coupled to the first light source. Each beam steering apparatus comprises a rotatable concave reflector and a light beam steering device disposed at least partially within the rotatable concave reflector. The combination of the light beam steering device and the rotatable concave reflector, when moving with respect to each other, steers the one or more first light pulses both vertically and horizontally to illuminate an object within a field-of-view; obtain one or more first returning light pulses, the one or more first returning light pulses being generated based on the steered first light pulses illuminating an object within the field-of-view, and redirects the one or more first returning light pulses.

Abstract: The present invention discloses a thermally conductive and vibration-isolating interface material, comprising thermally conductive strips in multiple groups of arrays, wherein the thermally conductive strip comprises an inner core on the inside, the outside of the inner core is covered with a back adhesive layer, the outside of the back adhesive layer is adhered with a heat transfer layer, the outside of the heat transfer layer is covered with an insulating layer, and a thermally conductive pad is provided on the outer side of the thermally conductive strip, with the area of the thermally conductive pad being greater than the surface area of the single thermally conductive strip.

Abstract: A system for multimodal detection is provided. The system comprises a light collection and distribution device configured to perform at least one of collecting light signals from a field-of-view (FOV) and distributing the light signals to a plurality of detectors. The light signals have a plurality of wavelengths comprising at least a first wavelength and a second wavelength. The system further comprises a multimodal sensor comprising the plurality of detectors. The plurality of detectors comprises at least a light detector of a first type and a light detector of a second type. The light detector of the first type is configured to detect light signals having a first light characteristic. The light detector of the first type is configured to perform distance measuring based on light signals having the first wavelength. The light detector of the second type is configured to detect light signals having a second light characteristic.

Abstract: The present disclosure describes a system and method for LiDAR scanning. The system includes a light source configured to generate one or more light beams; and a beam steering apparatus optically coupled to the light source. The beam steering apparatus includes a first rotatable mirror and a second rotatable mirror. The first rotatable mirror and the second rotatable mirror, when moving with respect to each other, are configured to: steer the one or more light beams both vertically and horizontally to illuminate an object within a field-of-view; redirect one or more returning light pulses generated based on the illumination of the object; and a receiving optical system configured to receive the redirected returning light pulses.

Abstract: The present utility model discloses a LiDAR heat dissipation structure and a LiDAR. The LiDAR comprises a mainboard, a chip, and a housing. The chip is provided on the mainboard. The heat dissipation structure comprises: a cold plate, the inner surface of the cold plate provided with a temperature equalization structure layer of multi-layer structure attached thereon and the outer surface of the cold plate facing away from the chip provided with a plurality of heat dissipation fins or heat dissipation slots formed thereon; and a heat pipe, fixedly embedded in the cold plate through a thermally conductive structural adhesive, wherein the cold plate couples with the housing to form a sealed cavity in which the mainboard and the chip are provided.

Abstract: A compact LiDAR device is provided. The compact LiDAR device includes a first mirror disposed to receive one or more light beams and a polygon mirror optically coupled to the first mirror. The polygon mirror comprises a plurality of reflective facets. For at least two of the plurality of reflective facets, each reflective facet is arranged such that: a first edge, a second edge, and a third edge of the reflective facet correspond to a first line, a second line, and a third line; the first line and the second line intersect to form a first internal angle of a plane comprising the reflective facet; and the first line and the third line intersect to form a second internal angle of the plane comprising the reflective facet. The first internal angle is an acute angle; and the second internal angle is an obtuse angle.

Abstract: Embodiments discussed herein refer to using LiDAR systems for steering consecutive light pulses using micro electro-mechanical system (MEMS) to illuminate objects in a field of view. Embodiments discussed herein also refer to using a multiple lens array to process returned light pulses.

Abstract: In accordance with some embodiments, a light detection and ranging (LiDAR) system comprises: a control system housing; a first LiDAR head housing separate and distinct from the control system housing; a light source within the control system housing, the light source configured to produce a first pulse signal; a light detector within the control system housing configured to detect a first return pulse signal associated with the pulse signal; a first pulse steering system within the first LiDAR head housing, the first pulse steering system configured to direct the first pulse signal in a first direction; a first fiber configured to carry the first pulse signal from the light source to the first pulse steering system; and a second fiber configured to carry a first returned pulse signal from the first LiDAR head housing to the light detector.