Ranging method and range finder
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United States of America
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Nov 19, 2024
Grant Date -
Aug 26, 2021
app pub date -
Jun 12, 2019
filing date -
Jun 12, 2019
priority date (Note) -
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Abstract
A ranging method and a range finder allow reliable measurement of the distance to a target object even when the target object has a very low reflectivity and/or under conditions with disturbances. The range finder includes: a light receiving element configured to receive a reflected component of light emitted to a target object; a first detection unit and a second detection unit configured to perform two different types of detections with different detection gains; and a distance/light-intensity calculation processing unit serves as a calculation unit for calculating a measured distance based on a combination of result patterns of the detections performed by the first and second detection units. The range finder determines a distance by causing each of the first and second detection units performs at least two detections with a time interval per a single light emission.
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