RANGEFINDER
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United States of America Patent
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Issued Date -
Jan 12, 2023
app pub date -
Sep 21, 2022
filing date -
Sep 21, 2022
priority date (Note) -
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Abstract
A rangefinder includes a light emitting part, a light receiving part, a calculating part that calculates the distance from a reflective object, and a control part. The calculating part has a received light intensity determining part, a peak detecting part, and a distance calculating part, and a distance determining part. The control part controls at least one of the intensity of the pulsed light, the sensitivity of the light receiving part to received light, and a position of the region of interest so that a first received light intensity is obtained as the received light intensity of each of the plurality of times of flight at least once, and a second received light intensity having a higher S/N ratio is obtained as the received light intensity of each of the plurality of times of flight at least once. The distance determining part determines the measurement target distance by using the first distance based on the first received light intensity and the second distance based on the second received light intensity.
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