G01S7/4863

Modular ladar sensor

A lightweight, inexpensive LADAR sensor incorporating 3-D focal plane arrays is adapted specifically for modular manufacture and rapid field configurability and provisioning. The sensor generates, at high speed, 3-D image maps and object data at short to medium ranges. The techniques and structures described may be used to extend the range of long range systems as well, though the focus is on compact, short to medium range ladar sensors suitable for use in multi-sensor television production systems and 3-D graphics capture and moviemaking. 3-D focal plane arrays are used in a variety of physical configurations to provide useful new capabilities.

Image sensor comprising entangled pixel

A depth sensor includes a first pixel including a plurality of first photo transistors each receiving a first photo gate signal, a second pixel including a plurality of second photo transistors each receiving a second photo gate signal, a third pixel including a plurality of third photo transistors each receiving a third photo gate signal, a fourth pixel including a plurality of fourth photo transistors each receiving a fourth photo gate signal, and a photoelectric conversion element shared by first to fourth photo transistors of the plurality of first to fourth photo transistors.

Method and apparatus for a hybrid time-of-flight sensor with high dynamic range

Disclosed is a time-of-flight sensing apparatus and method. In one embodiment, a system for time-of-flight (TOF) sensing, comprising: a detector array comprising a plurality of single-photon avalanche detectors (SPADs); and a control circuit comprising at least two digital control arrays coupled to the detector array, a counter array coupled to the at least two digital control arrays, and a logical control unit coupled to the counter array and the at least two digital control arrays, wherein the detector array is configured to receive at least one reflected light pulse from a target, wherein a first digital control array, the counter array, and the logical control unit of the control circuit are configured to receive at least one avalanche pulses from each of the plurality of SPADs to determine a first distance between the detector array and the target in a first TOF mode, and wherein a second digital control array, the counter array, and the logical control unit of the control circuit are configured to receive the at least one avalanche pulse from the each of the plurality of SPADs to determine a second distance between the detector array and the target in a second TOF mode.

Method and apparatus for a hybrid time-of-flight sensor with high dynamic range

Disclosed is a time-of-flight sensing apparatus and method. In one embodiment, a system for time-of-flight (TOF) sensing, comprising: a detector array comprising a plurality of single-photon avalanche detectors (SPADs); and a control circuit comprising at least two digital control arrays coupled to the detector array, a counter array coupled to the at least two digital control arrays, and a logical control unit coupled to the counter array and the at least two digital control arrays, wherein the detector array is configured to receive at least one reflected light pulse from a target, wherein a first digital control array, the counter array, and the logical control unit of the control circuit are configured to receive at least one avalanche pulses from each of the plurality of SPADs to determine a first distance between the detector array and the target in a first TOF mode, and wherein a second digital control array, the counter array, and the logical control unit of the control circuit are configured to receive the at least one avalanche pulse from the each of the plurality of SPADs to determine a second distance between the detector array and the target in a second TOF mode.

High-speed light sensing apparatus
11579267 · 2023-02-14 · ·

An apparatus including a semiconductor substrate; an absorption layer coupled to the semiconductor substrate, the absorption layer including a photodiode region configured to absorb photons and to generate photo-carriers from the absorbed photons; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, where the second control signal is different from the first control signal.

High-speed light sensing apparatus
11579267 · 2023-02-14 · ·

An apparatus including a semiconductor substrate; an absorption layer coupled to the semiconductor substrate, the absorption layer including a photodiode region configured to absorb photons and to generate photo-carriers from the absorbed photons; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, where the second control signal is different from the first control signal.

Variable phase scanning lidar system

A light detection and ranging system includes synchronously scanning transmit and receive mirrors that scan a pulsed fanned laser beam in two dimensions. Imaging optics image a receive aperture onto an arrayed receiver that includes a plurality of light sensitive devices. A phase offset may be injected into a scanning trajectory to mitigate effects of interfering light sources.

Variable phase scanning lidar system

A light detection and ranging system includes synchronously scanning transmit and receive mirrors that scan a pulsed fanned laser beam in two dimensions. Imaging optics image a receive aperture onto an arrayed receiver that includes a plurality of light sensitive devices. A phase offset may be injected into a scanning trajectory to mitigate effects of interfering light sources.

LIGHT RECEIVING DEVICE, SIGNAL PROCESSING METHOD FOR LIGHT RECEIVING DEVICE, AND DISTANCE MEASURING DEVICE
20230042254 · 2023-02-09 ·

A light receiving device of the present disclosure includes a light receiving unit that has a plurality of photon counting type light receiving elements arranged, the plurality of photon counting type light receiving elements receiving light from an object, an addition unit configured to add values of the plurality of light receiving elements at a predetermined time to use a resultant as a pixel value, and a logarithmic transformation processing unit configured to transform the pixel value into a logarithmic value or an approximate value thereof to use a resultant as logarithmic representation data, in which reflected pulsed light, from a subject, based on the photon counting type light receiving elements receiving light from the object from a light source unit is received.

IMAGING ELEMENT AND DISTANCE MEASUREMENT MODULE

The present technique relates to an imaging element and a distance measurement module capable of reducing parasitic capacity._A distance measurement module includes: a first wiring that connects predetermined transistors in first adjacent pixels to a via formed in one of first adjacent pixels and connected to a wiring formed in another layer; and a second wiring that connects predetermined transistors in second adjacent pixels to a via formed in a pixel that is adjacent to one of second adjacent pixels and connected to a wiring formed in another layer, in which the first wiring is connected to a redundant wiring. The present technique can be applied to a distance measurement sensor that performs distance measurement, for example.