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1.发明申请公开(公告)号：US20210341587A1
公开(公告)日：2021-11-04
申请号：US17344417
申请日：2021-06-10
Applicant: DENSO CORPORATION
Inventor： Teiyu KIMURA , Kenichi YANAI , Shinji KASHIWADA , Yoshihide TACHINO
Abstract: An optical ranging device includes a light emitting section provided with a semiconductor laser element having a light emitting region whose length in a first direction is more than that in a second direction intersecting the first direction. The device measures the distance to an object based on the time from light emission from the light emitting section to reception of the light by a light receiving section. A plurality of light emitting regions may be provided in the light emitting section such that they are separated in the second direction and abut or partially overlap each other in the first direction so that the light emitting regions are continuous in the first direction.
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Patent Agency Ranking
公开(公告)号：US20210239834A1
公开(公告)日：2021-08-05
申请号：US17239055
申请日：2021-04-23
Applicant: DENSO CORPORATION
Inventor： Teiyu KIMURA , Kenichi YANAI , Shinji KASHIWADA
Abstract: The laser light for performing a detection for at least 2 pixel parts is scanned in a first direction, covering at least a predetermined angle of field range. A reflection body is driven to reflect the scanned laser light, to scan the laser light in a second direction, covering a predetermined external range. The reflected light from the object is turned towards a light receiving lens by a route changing unit. A light receiving unit provided with a light receiving element for at least 2 pixel parts detects a condensed reflected light from the object. The distance to the object is detected depending on a period from a time when the laser light is emitted to a time when the reflected light is received. The route changing unit is disposed allowing the laser light scanned in the first direction to pass therethrough to reach the reflection body.
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公开(公告)号：US20170115393A1
公开(公告)日：2017-04-27
申请号：US15318706
申请日：2015-11-03
Applicant: DENSO CORPORATION
Inventor： Toshiaki NAGAI , Kenichi YANAI
CPC classification number: G01S17/10 , G01S7/4861 , G01S7/4865 , G01S7/4868
Abstract: A light emitting element emits a modulated light modulated in a pattern having a repetitive period toward a space. A driving unit drives the light emitting element. A light receiving element distributes charges corresponding to an incident light containing a reflected light obtained by reflecting the modulated light on an object to storage capacitors and stores the distributed charges. A control unit controls an exposure of the light receiving element. A signal processing unit measures a distance to the object by using a value sampled by the light receiving element. The control unit controls the exposure of the light receiving element to give a sensitivity to at least one high-order harmonic. The signal processing unit linearly combines a component of a fundamental wave with a component of the at least one high-order harmonic to measure the distance to the object.
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公开(公告)号：US20250020777A1
公开(公告)日：2025-01-16
申请号：US18441068
申请日：2024-02-14
Applicant: DENSO CORPORATION
Inventor： Kenichi YANAI , Hiroshi UESUGI
IPC: G01S7/48 , G01S17/04 , G01S17/10 , G01S17/89 , G01S17/931
Abstract: By a control device, a control method, or a non-transitory computer-readable storage medium storing a control program, an optical sensor that detects an echo of irradiation light irradiated to a detection area is controlled, distance image data representing a distance value to a reflective target is acquired, intensity image data representing an intensity value of the echo is acquired, a flare pixel region in which flare imaging is predicted in a periphery of a target pixel region is estimated, and the distance value of the flare pixel region is removed. A detection timing of the echo in the flare pixel region overlaps with a detection timing of the echo in the target pixel region in the distance image data.
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5.发明申请公开(公告)号：US20220390571A1
公开(公告)日：2022-12-08
申请号：US17820513
申请日：2022-08-17
Applicant: DENSO CORPORATION
Inventor： Mariko SETO , Kenichi YANAI , Mitsuhiro KIYONO , Noriyuki OZAKI
IPC: G01S7/481 , G01S17/10 , G01S17/89 , G01S17/931
Abstract: An object detection apparatus that scans a detection range to detect an object is provided. The object detection apparatus includes a light emission unit that emits a pulse detection light; and a light reception unit having a plurality of light reception pixel groups, in which the plurality of light reception pixel groups include a reflected light reception pixel group that receives, at each scanning unit in a scanning operation, reflected light in response to an emission of the pulse detection light, and one or more visible light reception pixel groups corresponding to visible light components, receiving a visible light at each scanning unit in a scanning operation.
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公开(公告)号：US20220011440A1
公开(公告)日：2022-01-13
申请号：US17486198
申请日：2021-09-27
Applicant: DENSO CORPORATION
Inventor： Kazuki KATO , Kenichi YANAI , Kenta AZUMA
IPC: G01S17/931 , G01S17/10 , G01S17/894 , G01S7/4863
Abstract: In a ranging device for measuring a distance to an object, a distance image acquisition unit is configured to, using light reception signal, acquire a distance image that indicates, at each pixel, a distance to the object within a region illuminated with illumination light. A background light image acquisition unit is configured to, using the light reception signals, acquire a background light image that indicates an intensity of background light received at each pixel. An information acquirer is configured to acquire intensity-related information related to the intensity of the background light. A resolution controller is configured to control a resolution of the distance image and a resolution of the background light image by setting a size of pixel regions independently for each of the distance image and the background light image according to the intensity of the background light indicated by the intensity-related information.
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