公开(公告)号：US20210240066A1

公开(公告)日：2021-08-05

申请号：US17161434

申请日：2021-01-28

Applicant: DENSO CORPORATION

Inventor： Mitsuhiro Kiyono ,  Kenichi Yanai ,  Teiyuu Kimura ,  Noriyuki Ozaki ,  Shinji Kashiwada ,  Fumiaki Mizuno ,  Kazuhisa Onda

IPC: G03B21/28 ,  G01S7/48 ,  G01S7/481 ,  G02B26/10 ,  G01S17/06

Abstract: An optical detector includes a light emitter having a light emitting window extended in an extension direction to emit a projection beam from the light emitting window toward a measurement area and to detect a return beam from the measurement area. The optical detector includes a scanning mirror that scans by reflecting the projection beam. The scanning mirror swings within a finite angular range around a rotation axis that is along a direction corresponding to the extension direction.

公开(公告)号：US20210239802A1

公开(公告)日：2021-08-05

申请号：US17161441

申请日：2021-01-28

Applicant: DENSO CORPORATION

Inventor： Mitsuhiro Kiyono ,  Teiyuu Kimura ,  Noriyuki Ozaki ,  Kenichi Yanai ,  Shinji Kashiwada ,  Fumiaki Mizuno ,  Kazuhisa Onda

IPC: G01S7/481 ,  G01S7/4861 ,  G01S17/08

Abstract: An optical detector is configured to project a projection beam toward a measurement area and detect a return beam from the measurement area. The optical detector includes: a projecting optical system that forms a projection optical axis to project the projection beam; a receiving optical system that forms a receiving optical axis to receive the return beam, and a housing having a housing chamber to house the projecting optical system and the receiving optical system, and an optical window for the projection beam and the return beam to travel between the housing chamber and the measurement area. The projection optical axis and the receiving optical axis are offset from each other to define an overlap region inside the housing chamber where footprints of the projection beam and the return beam overlap with each other.

公开(公告)号：US10942352B2

公开(公告)日：2021-03-09

申请号：US16070530

申请日：2016-10-21

Applicant: DENSO CORPORATION

Inventor： Taizo Miyato ,  Kazuyuki Ishihara ,  Kazuhisa Onda

IPC: G02B27/01 ,  G02B26/10 ,  G02B17/08 ,  B60K35/00 ,  B60R11/00

Abstract: A laser projection portion projects multiple laser light fluxes having different wavelengths and superimposed one on another. A scan portion scans the laser light fluxes from the laser projection portion. The image is drawn on a screen member upon incidence of the laser light fluxes scanned by the scan portion. A refraction element portion having positive refractive power is located on a light path between the scan portion and the screen member and adjusts an incident angle of the laser light fluxes to the screen member by refraction. The refraction element portion includes a positive lens part and a negative lens part. The positive lens part has positive refractive power. The negative lens part is made of a medium with a higher dispersing quality than a medium forming the positive lens part and has negative refractive power.