公开(公告)号：US20200292675A1

公开(公告)日：2020-09-17

申请号：US16563595

申请日：2019-09-06

Applicant: KABUSHIKI KAISHA TOSHIBA ,  Toshiba Electronic Devices & Storage Corporation

Inventor： Hiroshi KUBOTA ,  Nobu MATSUMOTO

IPC: G01S7/486 ,  G01S7/487 ,  G01S17/10 ,  G01J1/44 ,  H01L31/107

Abstract: According to one embodiment, a light detector includes: a first set of light detection elements and a second set of light detection elements each being disposed in a first region on a substrate; and a first selection and integration circuit and a second selection and integration circuit each being disposed in a second region outside of the first region on the substrate. The first selection and integration circuit is configured to select a first subset of light detection elements in the first set, and integrate outputs from the light detection elements in the first subset. The second selection and integration circuit is configured to select a second subset of light detection elements in the second set, and integrate outputs from the light detection elements in the second subset.

公开(公告)号：US20200088853A1

公开(公告)日：2020-03-19

申请号：US16297783

申请日：2019-03-11

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION

Inventor： Hiroshi KUBOTA ,  Nobu MATSUMOTO

IPC: G01S7/486

Abstract: A distance measuring device according to an embodiment includes a time acquisition circuit and a distance measurement circuit. The time acquisition circuit acquires a rising time in which a measurement signal obtained by converting reflected light of a laser beam from an object into a signal reaches a first threshold and a falling time in which the measurement signal reaches a second threshold after reaching the first threshold. The distance measurement circuit measures the distance to a target object on the basis of a time difference between timing based on the rising time and the falling time and irradiation timing of the laser beam.

公开(公告)号：US20180128918A1

公开(公告)日：2018-05-10

申请号：US15694961

申请日：2017-09-04

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yutaka OTA ,  Masatoshi HIRONO ,  Mineharu UCHIYAMA ,  Nobu MATSUMOTO ,  Hiroshi KUBOTA ,  Shinichi OHTSUKA

IPC: G01S17/08 ,  G01S7/481

CPC classification number: G01S17/08 ,  G01S7/4814 ,  G01S7/4816 ,  G01S17/42 ,  G01S17/89

Abstract: A distance measuring device includes a laser light source, an irradiation optical system comprising a beam spreader which is configured to spread the laser light about a first optical axis, a light reception optical system having a second optical axis different from the first optical axis and positioned to receive reflected light of the laser light from the object for measuring a distance to the object, a sensor with light receiving elements arranged in a first direction, the sensor being positioned to receive light reflected from the object which has passed through the light reception optical system, and a distance measuring unit configured to acquire distance information relating to the object based on the difference in time between emission of the laser light source and the reception of the reflected light at each of the plurality of light receiving elements.

公开(公告)号：US20140022558A1

公开(公告)日：2014-01-23

申请号：US13786424

申请日：2013-03-05

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiroshi KUBOTA ,  Nobu MATSUMOTO ,  Mineharu UCHIYAMA ,  Keiichiro MORI ,  Hisao KAWASATO

IPC: G01B11/14

CPC classification number: G01B11/14 ,  G01B11/002 ,  G01B11/026

Abstract: According to one embodiment, an optical device includes emission of an image projecting light source and emission of an optical path length measuring light source are provided by a light projecting device and respective beams are directed to a moveable mirror. In accordance with the movement of moveable mirror, an image projecting light scans a target and an image is displayed. Reflected light is scattered from the target and reaches a photodetector. By calculating the time difference of reference light and reflected light detected by the photodetector, the distance of the optical device and a reflection point of an optical path length measuring light is computed. By combining the computed optical path length data and angle data of the moveable mirror, the reflecting point of the optical path length measuring light is determined.

Abstract translation: 根据一个实施例，光学装置包括发射图像投影光源并且由光投射装置提供光路长度测量光源的发射，并且各个光束被引导到可移动的反射镜。 根据可动镜的移动，图像投射光扫描目标并显示图像。 反射光从目标物散射并到达光电探测器。 通过计算由光检测器检测的参考光和反射光的时间差，计算光学装置的距离和光程长度测量光的反射点。 通过组合计算出的光程长度数据和可动镜的角度数据，确定光路长度测量光的反射点。