Abstract: This application pertains to the technical field of LiDAR, and discloses a phased array emission apparatus, a LiDAR, and an automated driving device. The phased array emission apparatus includes an edge coupler, an optical combiner, and a phased array unit. An output end of the edge coupler is connected to an input end of the optical combiner, and an output end of the optical combiner is connected to an input end of the phased array unit. The edge coupler is configured to input and couple a first optical signal. The optical combiner is configured to transmit, to the phased array unit, the first optical signal coupled by the edge coupler. The phased array unit is configured to split the first optical signal into several first optical sub-signals and emit the first optical sub-signals. In the foregoing method, coupling efficiency can be improved, thereby meeting a low-loss requirement.

Abstract: An optical camera lens assembly is provided, including: a lens group, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens arranged sequentially along an optical axis from an object side to an image side, where, each of the first, the fourth, and the sixth lens has a positive refractive power, and each of the second, the third, the fifth, and the seventh lens has a negative refractive power; and a plurality of spacing elements, including a third spacing element disposed between the third lens and the fourth lens and in contact with an image-side surface of the third lens; the optical camera lens assembly satisfies: 3.0<(R3+R4)/d3s<5.0.

Abstract: This application discloses a time-of-flight measurement method, apparatus, and system. The method includes obtaining histogram data of a target object. The histogram data includes m counts, m is an integer greater than 1, and each of the m counts is associated with a time. The method also includes performing digital filtering on the m counts to obtain m filtered values respectively corresponding to the m counts, and determining a time of flight of the target object based on a time corresponding to a peak value in the m filtered values.

Abstract: The present application relates to an optical-electro system, which includes a substrate; at least one photo-detecting unit at least partially formed on the substrate to detect a signal light; at least one optical waveguide at least partially formed on the substrate, each of the at least one optical waveguide connected to one of the at least one photo-detecting unit to input a local light; and at least one electronic output port connected to the at least one photo-detecting unit to transmit at least one electronic output signal from the at least one photo-detecting unit, wherein the at least one electronic output signal is associated with the signal light and the local light.

Abstract: A phased array lidar includes: a laser generator (100) configured to generate original laser; an optical transmitting medium (400); an optical splitting apparatus (200) coupled to the laser generator (100) through the optical transmitting medium (400); the optical splitting apparatus (200) including a device configured to receive the original laser; and Z radiation units (300), each being respectively coupled to the optical splitting apparatus (200), where Z is a natural number greater than 1. The optical splitting apparatus (200) is configured to split the original laser into Z first optical signals, and send each of the Z first optical signals respectively to the radiation units (300), so that electromagnetic waves radiated by all of the radiation units (300) are combined into a beam of radar waves. The laser generator (100), the device, and the optical transmitting medium (400) are made of a material capable of transmitting laser having power greater than a set power value.

Abstract: A pToF sensor, a pToF pixel array and an operation method therefor are provided. The pToF pixel array includes a plurality of pToF pixels distributed in an array, a control circuit, and a conversion circuit. Each of the pToF pixels includes a photo sensitive unit configured to detect a return signal of a light pulse signal, and a first conversion unit configured to convert a time signal corresponding to each of the pToF pixels to an analog signal. The control circuit is connected to each of the pToF pixels, and configured to control an operation mode of each of the pToF pixels. The conversion circuit is connected to each of the pToF pixels, and configured to calculate a time-of-fight corresponding to each of the pToF pixels according to the analog signal corresponding to each of the pToF pixels.

Abstract: This application pertains to the technical field of LiDAR, and discloses a phased array emission apparatus, a LiDAR, and an automated driving device. The phased array emission apparatus includes an edge coupler, an optical combiner, and a phased array unit. An output end of the edge coupler is connected to an input end of the optical combiner, and an output end of the optical combiner is connected to an input end of the phased array unit. The edge coupler is configured to input and couple a first optical signal. The optical combiner is configured to transmit, to the phased array unit, the first optical signal coupled by the edge coupler. The phased array unit is configured to split the first optical signal into several first optical sub-signals and emit the first optical sub-signals. In the foregoing method, coupling efficiency can be improved, thereby meeting a low-loss requirement.

Abstract: A phased array lidar includes: a laser generator (100) configured to generate original laser; an optical transmitting medium (400); an optical splitting apparatus (200) coupled to the laser generator (100) through the optical transmitting medium (400); the optical splitting apparatus (200) including a device configured to receive the original laser; and Z radiation units (300), each being respectively coupled to the optical splitting apparatus (200), where Z is a natural number greater than 1. The optical splitting apparatus (200) is configured to split the original laser into Z first optical signals, and send each of the Z first optical signals respectively to the radiation units (300), so that electromagnetic waves radiated by all of the radiation units (300) are combined into a beam of radar waves. The laser generator (100), the device, and the optical transmitting medium (400) are made of a material capable of transmitting laser having power greater than a set power value.

Abstract: A pToF sensor, a pToF pixel array and an operation method therefor are provided. The pToF pixel array includes a plurality of pToF pixels distributed in an array, a control circuit, and a conversion circuit. Each of the pToF pixels includes a photo sensitive unit configured to detect a return signal of a light pulse signal, and a first conversion unit configured to convert a time signal corresponding to each of the pToF pixels to an analog signal. The control circuit is connected to each of the pToF pixels, and configured to control an operation mode of each of the pToF pixels. The conversion circuit is connected to each of the pToF pixels, and configured to calculate a time-of-fight corresponding to each of the pToF pixels according to the analog signal corresponding to each of the pToF pixels.

Abstract: A multistage analog-to-digital converter (ADC) having improved linearity is disclosed. The ADC in an illustrative embodiment includes a sampling circuit and a plurality of stages. A first one of the stages receives a sampled analog input signal from the sampling circuit, and each of the stages operates to generate an output corresponding to one or more bits of a digital output signal representative of the analog input signal. Each of at least a subset of the stages has associated therewith at least one amplifier circuit, e.g., an output analog residue amplifier, having at least one sampling component and at least one feedback component. The sampling component and the feedback component are periodically swapped to reduce gain error between one or more of the stages so as to provide improved linearity for the ADC.