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公开(公告)号：US11255972B2
公开(公告)日：2022-02-22
申请号：US16147500
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Micah P. Kalscheur , Jawad Nawasra
Abstract: A light beam scanning device includes a lens element assembly which dynamically adjusts a divergence of the beam. The lens element assembly can include multiple lens elements, one or more of which translates parallel to the light beam to adjust beam divergence. Divergence adjustment can include adjusting the beam divergence along one or more cross sectional axes of the beam. Beam divergence can be adjusted between consecutive scans, during a scan, etc. Beam divergence can be adjusted based on the field of view and scan rate. Beam divergence adjustment can enable dynamic adjustment of the spot size of the beam, which can enable the apparatus to adjust between scanning a wide divergence beam to detect objects in a scene and scanning a narrow divergence beam to generate detailed point clouds of the detected objects. Beam divergence adjustment can enable adjustment of reflection point intensity, enabling detection of low-reflectivity objects.
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公开(公告)号：US20190041521A1
公开(公告)日：2019-02-07
申请号：US16147500
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Micah P. Kalscheur , Jawad Nawasra
Abstract: A light beam scanning device includes a lens element assembly which dynamically adjusts a divergence of the beam. The lens element assembly can include multiple lens elements, one or more of which translates parallel to the light beam to adjust beam divergence. Divergence adjustment can include adjusting the beam divergence along one or more cross sectional axes of the beam. Beam divergence can be adjusted between consecutive scans, during a scan, etc. Beam divergence can be adjusted based on the field of view and scan rate. Beam divergence adjustment can enable dynamic adjustment of the spot size of the beam, which can enable the apparatus to adjust between scanning a wide divergence beam to detect objects in a scene and scanning a narrow divergence beam to generate detailed point clouds of the detected objects. Beam divergence adjustment can enable adjustment of reflection point intensity, enabling detection of low-reflectivity objects.
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公开(公告)号：US10107914B2
公开(公告)日：2018-10-23
申请号：US14628054
申请日：2015-02-20
Applicant: Apple Inc.
Inventor： Micah P. Kalscheur , Jawad Nawasra
Abstract: A light beam scanning device includes a lens element assembly which dynamically adjusts a divergence of the beam. The lens element assembly can include multiple lens elements, one or more of which translates parallel to the light beam to adjust beam divergence. Divergence adjustment can include adjusting the beam divergence along one or more cross sectional axes of the beam. Beam divergence can be adjusted between consecutive scans, during a scan, etc. Beam divergence can be adjusted based on the field of view and scan rate. Beam divergence adjustment can enable dynamic adjustment of the spot size of the beam, which can enable the apparatus to adjust between scanning a wide divergence beam to detect objects in a scene and scanning a narrow divergence beam to generate detailed point clouds of the detected objects. Beam divergence adjustment can enable adjustment of reflection point intensity, enabling detection of low-reflectivity objects.
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公开(公告)号：US20220364849A1
公开(公告)日：2022-11-17
申请号：US17688933
申请日：2022-03-08
Applicant: Apple Inc.
Inventor： Shay Yosub , Assaf Avraham , Jawad Nawasra , Jonathan Pokrass , Moshe Laifenfeld , Nir Ben Zadok , Niv Gilboa , Tal Kaitz , Ronen Akerman , Naveh Levanon
IPC: G01B11/22 , G01S17/894 , G01S7/4865 , G06T7/55 , G06T7/521 , G06T7/80
Abstract: Depth mapping apparatus includes an illumination assembly, which directs modulated optical radiation toward a target scene, and a camera, which captures a two-dimensional image of the target scene. A range sensor senses respective times of flight of photons reflected from a matrix of locations disposed across the target scene. A processor derives first depth coordinates of the matrix of locations responsively to the respective times of flight, derives second depth coordinates of the matrix of locations responsively to a transverse disparity between features in the two-dimensional image and corresponding reference features in a reference image, computes a disparity correction function based on a difference between the first and the second depth coordinates at the matrix of locations, corrects the transverse disparity between the two-dimensional image and the reference image using the disparity correction function, and generates a depth map of the target scene based on the corrected transverse disparity.
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公开(公告)号：US20170160209A1
公开(公告)日：2017-06-08
申请号：US14957643
申请日：2015-12-03
Applicant: Apple Inc.
Inventor： Jawad Nawasra , Yazan Z. Alnahhas
IPC: G01N21/958
CPC classification number: G01N21/958 , G01N2201/06113
Abstract: An apparatus for testing diffraction or diffusion of a light beam is provided. The apparatus includes a photosensitive semiconductor, shaped to define an aperture. At least one anode, and a plurality of cathodes, are coupled to the semiconductor. An optical element, configured to modify an angular spread of a light beam that traverses the optical element, is disposed within the aperture. A detector is configured to detect electric currents that pass between the cathodes and the anode in response to a portion of the light beam exiting the optical element and hitting the semiconductor. Other embodiments are also described.
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Patent Agency Ranking
公开(公告)号：US09525863B2
公开(公告)日：2016-12-20
申请号：US14698912
申请日：2015-04-29
Applicant: APPLE INC.
Inventor： Jawad Nawasra , Scott T. Smith
CPC classification number: H04N13/254 , G01S17/023 , G01S17/42 , G01S17/89 , H04N13/128 , H04N13/25 , H04N2013/0081
Abstract: Imaging apparatus includes an image sensor, which acquires an image of a scene, and a scanner, which includes an optical transmitter, which emits a sequence of optical pulses toward the scene, and an optical receiver, which receives the optical pulses reflected from the scene and generates an output indicative of respective times of flight of the pulses. Scanning optics are configured to scan the optical pulses over the scene in a scan pattern that covers and is contained within a non-rectangular area within the scene. A processor identifies an object in the image of the scene, defines the non-rectangular area so as to contain the identified object, and processes the output of the optical receiver so as to extract a three-dimensional (3D) map of the object.
Abstract translation: 成像装置包括获取场景的图像的图像传感器和包括向场景发射一系列光脉冲的光发送器的扫描器，以及接收从场景反射的光脉冲的光接收器 并产生指示脉冲的相应飞行时间的输出。 扫描光学器件被配置为以覆盖并包含在场景内的非矩形区域内的扫描图案扫描场景上的光脉冲。 处理器识别场景图像中的对象，定义非矩形区域以便包含所识别的对象，并且处理光接收器的输出以提取对象的三维（3D）图。
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公开(公告)号：US09921299B2
公开(公告)日：2018-03-20
申请号：US14628042
申请日：2015-02-20
Applicant: Apple Inc.
Inventor： Micah P. Kalscheur , Jawad Nawasra
CPC classification number: G01S7/4817 , G01S7/4814 , G01S7/497 , G01S17/42 , G01S17/89
Abstract: A light beam scanning device includes a controller device which dynamically adjusts a divergence of the beam. Divergence adjustment can include adjusting the beam divergence along one or more cross sectional axes of the beam. Beam divergence can be adjusted between consecutive scans, during a scan, etc. Beam divergence can be adjusted based on the field of view and scan rate. Beam divergence adjustment can enable dynamic adjustment of the spot size of the beam, which can enable the apparatus to adjust between scanning a wide divergence beam to detect objects in a scene and scanning a narrow divergence beam to generate detailed point clouds of the detected objects. Beam divergence adjustment can enable adjustment of reflection point intensity, enabling detection of low-reflectivity objects.
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公开(公告)号：US09829445B2
公开(公告)日：2017-11-28
申请号：US14957643
申请日：2015-12-03
Applicant: Apple Inc.
Inventor： Jawad Nawasra , Yazan Z. Alnahhas
IPC: G01N21/958
CPC classification number: G01N21/958 , G01N2201/06113
Abstract: An apparatus for testing diffraction or diffusion of a light beam is provided. The apparatus includes a photosensitive semiconductor, shaped to define an aperture. At least one anode, and a plurality of cathodes, are coupled to the semiconductor. An optical element, configured to modify an angular spread of a light beam that traverses the optical element, is disposed within the aperture. A detector is configured to detect electric currents that pass between the cathodes and the anode in response to a portion of the light beam exiting the optical element and hitting the semiconductor. Other embodiments are also described.
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公开(公告)号：US20160245919A1
公开(公告)日：2016-08-25
申请号：US14628054
申请日：2015-02-20
Applicant: Apple Inc.
Inventor： Micah P. Kalscheur , Jawad Nawasra
CPC classification number: G01S17/89 , G01S7/4814 , G01S7/4817 , G01S7/51 , G01S17/10 , G01S17/42
Abstract: A light beam scanning device includes a lens element assembly which dynamically adjusts a divergence of the beam. The lens element assembly can include multiple lens elements, one or more of which translates parallel to the light beam to adjust beam divergence. Divergence adjustment can include adjusting the beam divergence along one or more cross sectional axes of the beam. Beam divergence can be adjusted between consecutive scans, during a scan, etc. Beam divergence can be adjusted based on the field of view and scan rate. Beam divergence adjustment can enable dynamic adjustment of the spot size of the beam, which can enable the apparatus to adjust between scanning a wide divergence beam to detect objects in a scene and scanning a narrow divergence beam to generate detailed point clouds of the detected objects. Beam divergence adjustment can enable adjustment of reflection point intensity, enabling detection of low-reflectivity objects.
Abstract translation: 光束扫描装置包括动态调节光束发散的透镜元件组件。 透镜元件组件可以包括多个透镜元件，其中的一个或多个平行于光束平移以调节光束发散。 发散调整可以包括沿光束的一个或多个横截面轴调整光束发散。 可以在连续扫描之间，扫描期间调整光束发散等。可以根据视场和扫描速率调整光束发散。 光束发散调节可以使光束的光斑尺寸能够动态调节，这使得装置能够在扫描宽的发散光束之间进行调整，以检测场景中的物体并扫描窄的发散光束以产生被检测物体的详细点云。 光束发散调整可以调节反射点强度，从而能够检测低反射率物体。
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公开(公告)号：US10215553B2
公开(公告)日：2019-02-26
申请号：US15065904
申请日：2016-03-10
Applicant: Apple Inc.
Inventor： Jawad Nawasra , Matthew C. Waldon , Scott T. Smith , Thomas M. Gregory
Abstract: Embodiments described include a system comprising a position sensing device (PSD) and a light source. The light source is configured to, by passing one or more light beams through the PSD, cause one or more electrical currents to flow through the PSD. The system further comprises a processor, configured to (i) in response to the electrical currents, ascertain an amount of power that is delivered by the light source, and (ii) in response to the amount of power exceeding a threshold amount of power, inhibit the light source from further operation. Other embodiments are also described.
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