Argo Ai Gmbh

Princeton Lightwave, Inc.

Argo Al, LLC

Evgenii Yuryevich Kotelnikov

Igor Kudryashov

Sabbir Sajjad Rangwala

William Paul Mordarski

Samuel Richard Wilton

Mark D Entwistle

A method for developing a map of objects in a region surrounding a location is disclosed. The method includes interrogating the region along a detection axis with a series of optical pulses and detecting reflections of the optical pulses that originate at objects located along the detection axis. A multi-dimensional map of the region is developed by scanning the detection axis about the location in at least one dimension. The reflections are detected via a single-photon detector that is armed using a sub-gating scheme such that the single-photon detector selectively detects photons of reflections that originate only within each of a plurality of zones that collectively define the detection field. In some embodiments, the optical pulses have a wavelength within the range of 1350 nm to 1390 nm, which is a spectral range having a relatively high eye-safety threshold and a relatively low solar background.

LiDAR system comprising a single-photon detector

Disclosed are improved LiDAR systems and methods that achieve an improved signal-to-noise by interrogating a sub-region of a scene with an optical signal. An instantaneous field-of-view (FOV) of each detector pixel is narrowed along a first direction to reduce detection of solar-generated photons. Instantaneous FOVs of the pixels are compressed along the first direction to provide a composite FOV that is narrower than a total FOV. To sample the total FOV of a scene, the optical signal and composite FOV of the receiver are scanned across the scene along the first direction.

LiDAR system and method

A GmAPD-based LiDAR system and methods for developing a point-cloud image of a detection region are disclosed. The methods include scanning the detection region during a plurality of detection frames that defines an image frame. In each detection frame, the detection region is interrogated with a different one of a series of optical pulses and reflections of the optical pulse are detected at a GmAPD-based receiver that is gated such that a different sampling region within the detection region is selectively sampled in each detection frame. The sampling regions are defined such that longer-range areas of the detection region are sampled more times in the image frame than shorter-range areas of the detection region. As a result, objects throughout the entire detection region can be detected with high SNR.

Geiger-mode LiDAR system having improved signal-to-noise ratio

A GmAPD imager with an increased field of view includes at least one array of movable mirrors. Each movable mirror in the array switches between at least two positions (states). The movable mirrors receive light coming from a first direction when the mirror is in the first state and a second direction when the mirror is in the second state, thus increasing the field of view of the imager.

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Princeton, NJ, United States of America

Evgenii Yuryevich Kotelnikov