Abstract: Without requiring that threshold values be set for each measurement condition, the present invention makes it possible to determine whether noise that can occur in measured values is present. An optical measurement device acquires measured values on the basis of the amount of reflected light that is received after being reflected by a target. The optical measurement device comprises a setting part for setting a threshold value for the amount of received reflected light per unit time on the basis of feature information regarding the light amount of the optical measurement device and a determination part for determining whether there is measured value noise on the basis of the threshold value.

Abstract: An optical measurement device includes: a light source, which emits light; a light reception portion, which detects a light reception amount of reflected light reflected on a target; a measurement portion, which measures a distance from the optical measurement device to the target based on the light reception amount of the reflected light; and a detection portion, which detects a portion of the target in which a light reception amount per unit time of the reflected light is smaller than a threshold value.

Abstract: An optical measurement device includes: a light source, which emits light; a light reception portion, which detects a light reception amount of reflected light reflected on a target; a measurement portion, which measures a distance from the optical measurement device to the target based on the light reception amount of the reflected light; and a detection portion, which detects a portion of the target in which a light reception amount per unit time of the reflected light is smaller than a threshold value.