RANGE-FINDING DEVICE AND RANGE-FINDING METHOD

To provide a range-finding device and the like that are robust against noise more than conventional arts.SOLUTION: A range-finding device 100 is the range-finding device that measures a distance to an object according to a TOF (Time Of Flight) method, and comprises: a light source unit 40; a light reception element that receives reflection light in which light the light source unit 40 emits is reflected upon an object 200; and a light reception unit 60 that has a first tap, second tap and third tap to which an electric charge generated by the light reception element receiving the reflection light is distributed; and a signal generation unit 20 that generates a control signal for a light emitting timing of the light source unit 40, and an exposure timing corresponding to the first tap, second tap and third tap by adding modulation using a pseudo random number to a basic signal.SELECTED DRAWING: Figure 2 【課題】従来よりもノイズに頑健な測距装置等を提供する。【解決手段】測距装置１００は、ＴＯＦ（Ｔｉｍｅ Ｏｆ Ｆｌｉｇｈｔ）方式により対象物までの距離を測定する測距装置であって、光源部４０と、光源部４０が出射した光が対象物２００で反射された反射光を受光する受光素子と、受光素子が反射光を受光することにより発生した電荷が振り分けられる第１タップ、第２タップ及び第３タップとを有する受光部６０と、光源部４０の発光タイミング、並びに、第１タップ、第２タップ及び第３タップに対応する露光タイミングのための制御信号を、基本信号に擬似乱数を用いた変調を加えることで生成する信号生成部２０とを備える。【選択図】図２