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1. 发明授权

US09625580B2 LiDAR system comprising a single-photon detector 有权
公开(公告)号：US09625580B2
公开(公告)日：2017-04-18
申请号：US14147478
申请日：2014-01-03
申请人： Princeton Lightwave, Inc.
发明人： Evgenii Yuryevich Kotelnikov , William Paul Mordarski , Igor Kudryashov , Mark D. Entwistle , Sabbir Sajjad Rangwala
IPC分类号： G01C3/08 , G01S17/89 , G01S7/487 , G01S17/10 , G01S17/42
CPC分类号： G01S7/487 , G01S17/107 , G01S17/42 , G01S17/89
摘要： 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.

2. 发明申请

US20170176576A1 LiDAR System Comprising A Single-Photon Detector 审中-公开
公开(公告)号：US20170176576A1
公开(公告)日：2017-06-22
申请号：US15452182
申请日：2017-03-07
申请人： Princeton Lightwave, Inc.
发明人： Evgenii Yuryevich Kotelnikov , William Paul Mordarski , Igor Kudryashov , Mark D. Entwistle , Sabbir Sajjad Rangwala
IPC分类号： G01S7/487 , G01S17/10 , G01S17/89
CPC分类号： G01S7/487 , G01S17/107 , G01S17/42 , G01S17/89
摘要： 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.

3. 发明申请

US20170026556A1 AVALANCHE PHOTODIODE BASED IMAGER WITH INCREASED FIELD-OF-VIEW 有权
标题翻译：基于AVALANCHE光电子像的图像具有增加的视场
公开(公告)号：US20170026556A1
公开(公告)日：2017-01-26
申请号：US15218954
申请日：2016-07-25
申请人： Princeton Lightwave, Inc.
发明人： Evgenii Yuryevich Kotelnikov , Igor Kudryashov , Samuel Richard Wilton , Sabbir Sajjad Rangwala
IPC分类号： H04N5/225 , G02B26/08 , H04N5/378
CPC分类号： G02B26/0833 , H04N5/2259 , H04N5/23238
摘要： 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.
摘要翻译：具有增加的视场的GmAPD成像器包括至少一个可移动反射镜阵列。阵列中的每个可移动反射镜在至少两个位置（状态）之间切换。当反射镜处于第一状态时，可移动反射镜接收来自第一方向的光，并且当反射镜处于第二状态时，可动反射镜接收来自第一方向的光，从而增加成像器的视场。

4. 发明申请

US20150192676A1 LiDAR System Comprising A Single-Photon Detector 有权
标题翻译：包含单光子检测器的LiDAR系统
公开(公告)号：US20150192676A1
公开(公告)日：2015-07-09
申请号：US14147478
申请日：2014-01-03
申请人： Princeton Lightwave, Inc.
发明人： Evgenii Yuryevich Kotelnikov , William Paul Mordarski , Igor Kudryashov , Mark D. Entwistle , Sabbir Sajjad Rangwala
IPC分类号： G01S17/89 , G01S7/487 , G01S7/486
CPC分类号： G01S7/487 , G01S17/107 , G01S17/42 , G01S17/89
摘要： 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.
摘要翻译：公开了一种在位置周围的区域中开发对象的地图的方法。该方法包括利用一系列光脉冲沿着检测轴询问该区域，并且检测起源于沿着检测轴定位的物体的光脉冲的反射。通过在至少一个维度上扫描关于位置的检测轴来开发该区域的多维图。通过使用子选通方案布防的单光子检测器来检测反射，使得单光子检测器选择性地检测仅在共同定义检测场的多个区域中的每一个区域内产生的反射光子。在一些实施例中，光脉冲具有在1350nm至1390nm范围内的波长，其是具有相对较高的眼睛安全阈值和相对较低的太阳背景的光谱范围。

5. 发明授权

US11009592B2 LiDAR system and method 有权
公开(公告)号：US11009592B2
公开(公告)日：2021-05-18
申请号：US15614814
申请日：2017-06-06
申请人： Princeton Lightwave, Inc.
发明人： Samuel Richard Wilton , Evgenii Yuryevich Kotelnikov , Igor Kudryashov
IPC分类号： G01S7/48 , G01S7/481 , G01S17/42 , G01S17/89 , G01S7/4863 , G01S17/10 , G01S17/931
摘要： 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.

6. 发明授权

US10520591B2 LiDAR system comprising a single-photon detector 有权
公开(公告)号：US10520591B2
公开(公告)日：2019-12-31
申请号：US15452182
申请日：2017-03-07
申请人： Princeton Lightwave, Inc.
发明人： Evgenii Yuryevich Kotelnikov , William Paul Mordarski , Igor Kudryashov , Mark D. Entwistle , Sabbir Sajjad Rangwala
IPC分类号： G01C3/08 , G01S7/487 , G01S17/89 , G01S17/10 , G01S17/42
摘要： 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.

7. 发明授权

US10386487B1 Geiger-mode LiDAR system having improved signal-to-noise ratio 有权
公开(公告)号：US10386487B1
公开(公告)日：2019-08-20
申请号：US15254816
申请日：2016-09-01
申请人： Princeton Lightwave, Inc.
发明人： Samuel Richard Wilton , Evgenii Yuryevich Kotelnikov
IPC分类号： G01S17/89 , G01S17/93 , G01S7/486
摘要： 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.

8. 发明授权

US09851556B2 Avalanche photodiode based imager with increased field-of-view 有权
公开(公告)号：US09851556B2
公开(公告)日：2017-12-26
申请号：US15218954
申请日：2016-07-25
申请人： Princeton Lightwave, Inc.
发明人： Evgenii Yuryevich Kotelnikov , Igor Kudryashov , Samuel Richard Wilton , Sabbir Sajjad Rangwala
IPC分类号： H04N5/225 , G02B26/08 , H04N5/232
CPC分类号： G02B26/0833 , H04N5/2259 , H04N5/23238
摘要： 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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