PROBLEM TO BE SOLVED: To provide an optical tomographic imaging apparatus which can acquire an optical tomographic image using light in any wavelength region of a visible light region for human skin, and a human skin measurement method using the same.SOLUTION: An optical tomographic imaging apparatus 1 comprises: a light source part 10 which includes a single light source 11 for emitting light including at least a wavelength region over 400-800 nm and a spectrum molding part 12 for performing spectrum molding by cutting out any wavelength region of a visible region from the light emitted from the light source 11, and emits low coherent light L0 subjected to the spectrum molding a light division part 3 which divides the low coherent light L0 into measurement light L1 and reference light L2 an irradiation optical system 20 which linearly irradiates a measurement object with the measurement light L1 a multiplexing part 4 which overlaps reflection light L3 from the measurement object when the measurement light L1 is applied to the measurement object S with the reference light L2 an interference light detection part 30 which spectrally detects interference light L4 and a tomographic image acquisition part 40 which acquires a two-dimensional optical tomographic image of the measurement object by analyzing the frequency of the detected interference light.COPYRIGHT: (C)2015,JPO&INPIT【課題】ヒト肌について、可視光域の任意の波長域の光を用いた光断層画像を取得可能な光断層画像撮像装置とその装置を用いたヒト肌の計測方法を提供する。【解決手段】光断層画像撮像装置1を、400nm~800nmに亘る波長域を少なくとも含む光を射出する単一の光源11および、光源11から射出された光から可視域の任意の波長域を切り出してスペクトル成形をするスペクトル成形部12を有し、スペクトル成形された低コヒーレント光L0を射出する光源部10と、低コヒーレント光L0を測定光L1と参照光L2とに分割する光分割部3と、測定光L1を測定対象にライン状に照射する照射光学系20と、測定光L1が測定対象Sに照射されたときの測定対象からの反射光L3と参照光L2とを重ね合わせる合波部4と、干渉光L4を分光検出する干渉光検出部30と、検出された干渉光を周波数解析することにより測定対象の二次元光断層画像を取得する断層画像取得部40とを備えたものとする。【選択図】図1