公开(公告)号：US20190293762A1

公开(公告)日：2019-09-26

申请号：US16071330

申请日：2016-12-26

Applicant: DENSO CORPORATION

Inventor： Shunpei SUZUKI ,  Kunihiko HAYASHI

IPC: G01S7/481 ,  G01S17/93 ,  G01S17/08

Abstract: An optical distance measuring apparatus is provided. The optical distance measuring apparatus includes a housing and multiple light projection and light reception portions. The housing includes an opening face. The multiple light projection and light reception portions emit light, and receive the light after the light is reflected. The multiple light projection and light reception portions are accommodated in the housing. The light is provided by laser light. By combining optical paths of the multiple light projection and light reception portions, a view angle of the optical distance measuring apparatus is widened compared with a view angle of one of the multiple light projection and light reception portions. The optical paths of the multiple light projection and light reception portions overlap with one another in the opening face when seen from a direction perpendicular to a direction along which the view angle of the optical distance measuring apparatus is widened.

公开(公告)号：US20210041535A1

公开(公告)日：2021-02-11

申请号：US17077761

申请日：2020-10-22

Applicant: DENSO CORPORATION

Inventor： Chihiro MORIGUCHI ,  Shunpei SUZUKI

IPC: G01S7/481 ,  G01S7/499

Abstract: A light irradiation apparatus includes an optical window, a light source and an irradiation unit. The optical window is formed of a light-transmissive material. The light source is configured to emit irradiation light with linear polarization. The irradiation unit is configured to irradiate the irradiation light emitted from the light source toward a preset irradiation range through the optical window. Moreover, the optical window has a shape such that the reflectivity of the irradiation light within a specified range is lower than or equal to a preset upper limit; the specified range is provided within the irradiation range.

公开(公告)号：US20200348399A1

公开(公告)日：2020-11-05

申请号：US16936384

申请日：2020-07-22

Applicant: DENSO CORPORATION

Inventor： Hidemasa SUZUKI ,  Shunpei SUZUKI

IPC: G01S7/481 ,  G01S17/931 ,  G01S17/08 ,  G02B26/10

Abstract: A light detection module projects a light beam to scan the light beam in a scanning direction, and receives a light beam arriving from a scanning region of the light beam. The light detection module is arranged such that a scanning center indicative of a center of the scanning of the light beam is located to be different from a window center of an optical window in the scanning direction. The optical window has a target surface that is one of the outer side surface and the inner side surface. The target surface has a cross-section along a scanning surface of the transmitted light beam. The scanning surface is defined by the scanning direction of the transmitted light beam and the transmission direction of the light beam from the light detection module. The cross-section of the target surface is shaped to be asymmetrical about the window center.