Title:
距離計測装置
Document Type and Number:
Japanese Patent JP7423485
Kind Code:
B2
Abstract:
A distance measuring device according to one embodiment includes a light emitter, a first light receiver, a second light receiver, a measurement section, and a controller. The light emitter includes a light source and a mirror. The light source emits an optical signal. The mirror reflects the optical signal. The first light receiver includes a first sensor and a first optical system. The first sensor includes first pixels. The first optical system is configured to guide a reflected light of the optical signal emitted from the light emitter to the first sensor. The second light receiver includes a second sensor and a second optical system. The second sensor includes second pixels. The second optical system is configured to guide the reflected light to the second sensor.The measurement section is configured to calculate a first distance value and a second distance value, wherein the first distance value is calculated using a first time and a second time, and the second distance value is calculated using the first time and a third time, and wherein the first time is a time at which the light source emits the optical signal, the second time is a time at which the first sensor detects the reflected light, and the third time is a time at which the second sensor detects the reflected light.The controller is configured to cause the light source to emit the optical signal intermittently and to control the mirror to perform scanning using the optical signal. The controller is further configured to set a first light-receiving area in which at least one first pixel among the first pixels is selectively turned on in the first sensor, and to set a second light-receiving area in which at least one second pixel among the second pixels is selectively turned on in the second sensor. The controller is further configured to determine a position of the first light-receiving area and a position of the second light-receiving area according to a state of the mirror when the optical signal is emitted.
Inventors:
Hiroshi Kubota
Matsumoto Exhibition
Matsumoto Exhibition
Application Number:
JP2020157625A
Publication Date:
January 29, 2024
Filing Date:
September 18, 2020
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Electronic Devices & Storage Corporation
Toshiba Electronic Devices & Storage Corporation
International Classes:
G01S7/481; G01C3/06; G01S7/4863; G01S17/10
Domestic Patent References:
| JP2017122673A | ||||
| JP2019191126A | ||||
| JP2018537680A | ||||
| JP2017208595A | ||||
| JP2010107448A | ||||
| JP2019144186A | ||||
| JP2019184545A |
Foreign References:
| US20120249998 | ||||
| US20190146067 | ||||
| WO2017110415A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Suzue Patent General Office