公开(公告)号：US20230400556A1

公开(公告)日：2023-12-14

申请号：US18456618

申请日：2023-08-28

Applicant: DENSO CORPORATION

Inventor： Kazuhisa ONDA ,  Sakito MIKI

IPC: G01S7/481

CPC classification number: G01S7/4816 ,  G01S7/4817

Abstract: A light detecting device includes a reception optical system that guides a reflected beam along a reception optical axis and a light receiver that outputs a detection signal by receiving the reflected beam. The light receiver forms a reception surface having a reception aspect ratio in which a long side extends along a first reference axis orthogonal to the reception optical axis. The reception surface is inclined around the first reference axis with respect to a second reference axis orthogonal to the reception optical axis and the first reference axis.

公开(公告)号：US20190195991A1

公开(公告)日：2019-06-27

申请号：US16227363

申请日：2018-12-20

Applicant: DENSO CORPORATION

Inventor： Sakito MIKI ,  Toshiaki NAGAI

IPC: G01S7/48 ,  G01S17/42 ,  G01S7/481 ,  G01S17/93

CPC classification number: G01S7/4808 ,  G01S7/4815 ,  G01S17/42 ,  G01S17/936

Abstract: In a distance measuring apparatus, an irradiating unit irradiates a measurement region with a pattern light comprised of first and second luminous patterns. The second luminous pattern has a relatively low intensity lower than the intensity of the first luminous pattern. A light receiving sensor receives, for each pixel, a return light component based on reflection of the pattern light by a target object. A measurement controller determines whether an intensity of each return light component received by the corresponding pixel satisfies a measurement condition, and obtains, as effective distance information, at least one distance value of at least one pixel of the light receiving sensor when it is determined that the intensity of the return light component received by the at least one pixel satisfies the measurement condition.

公开(公告)号：US20220113408A1

公开(公告)日：2022-04-14

申请号：US17645016

申请日：2021-12-17

Applicant: DENSO CORPORATION

Inventor： Teiyuu KIMURA ,  Toshiaki NAGAI ,  Sakito MIKI ,  Akifumi UENO

IPC: G01S17/08 ,  G01S7/481 ,  G01S7/484 ,  G01S7/4865

Abstract: An optical distance measuring device using light includes a light-emitting part in which a first and second light-emitting elements that have a light-emitting region, in which a length in a first direction is longer than that in a second direction intersecting the first direction, are separated from each other in the second direction; two projection lenses that are respectively provided to correspond to the first and second light-emitting elements, and are separated from each other in the second direction and arranged at positions overlapping each other in the first direction; a scanner that scans a measurement region with emitted beams emitted from the light-emitting part and have passed through the projection lenses; a light receiving part that receives reflected light of the emitted beams emitted from the light-emitting part; and a measurement section measuring a distance to an object according to a time period from light emission to light reception.

公开(公告)号：US20210373155A1

公开(公告)日：2021-12-02

申请号：US17401012

申请日：2021-08-12

Applicant: DENSO CORPORATION

Inventor： Toshiaki NAGAI ,  Sakito MIKI

IPC: G01S17/08 ,  G01S7/484 ,  G01S7/4861 ,  G01S17/931 ,  G01C3/06

Abstract: A light range finding apparatus is provided with a light emitting optical system that projects a pattern light having an irradiation region and a non-irradiation region; a light receiving sensor including an arrayed light receiving element; a light receiving optical system that receives a reflected light of the pattern light and enlarges a portion of the reflected light corresponding to the irradiation region to be larger than a single light receiving element and causes the enlarged reflected light to be incident on the light receiving sensor; a distance measurement unit that measures a distance to the object based on an output of the light receiving sensor; and a positional alignment section that performs, based on the output of the light receiving sensor, a positional alignment of at least a part of the light emitting optical system and the light receiving optical system.