DISTANCE MEASUREMENT DEVICE AND DISTANCE MEASUREMENT METHOD

WIPO Patent Application WO/2021/153162

A1

According to the present invention, a distance measurement range is expanded and a framerate is improved. The distance measurement device (1) according to the present embodiment comprises a light-emitting unit (100) that emits illumination light, and a measurement unit (200) that calculates the distance to a subject on the basis of impinging light. The light-emitting unit is provided with: a light-emitting element array (130) in which are provided a plurality of light-emitting elements arranged in an array; a drive circuit (120) that drives the plurality of light-emitting elements; and a first control circuit (110) that controls the drive circuit so as to execute first driving, in which two or more light-emitting elements belonging to a first region among the plurality of light emitting elements are caused to emit light at a first period, and second driving, in which two or more light-emitting elements belonging to a second region different from the first region are caused to emit light at the first period. The first control circuit controls the drive circuit so as to switch between the first driving and the second driving at least once within a prescribed period of time.

SAKIMURA NOBORU (JP)
SUZUKI ATSUSHI (JP)
NAKAMURA MASASHI (JP)
TSUKUDA YASUNORI (JP)

PCT/JP2021/000011

August 05, 2021

January 04, 2021

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SONY SEMICONDUCTOR SOLUTIONS CORP (JP)

G01S7/484

WO2019225224A1	2019-11-28
WO2018108981A1	2018-06-21

US20180259623A1	2018-09-13
JP2018531374A	2018-10-25
US20190033429A1	2019-01-31
US20190204148A1	2019-07-04

SAKAI INTERNATIONAL PATENT OFFICE (JP)

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