| 摘要 |
In an active type rangefinder apparatus for measuring the distance to a range-finding object, an infrared emitting device (IRED) terminates its light projection earlier by a signal error time when the stationary light component outputted from the IRED starts to accumulate in a stationary-light-eliminating capacitor. As a consequence, the emission time of the IRED can be shortened, whereby the time parallax can be reduced.
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