PROBLEM TO BE SOLVED: To provide an authentication device which can use biometric information of a face of an authentication target person, which can be observed by irradiating light of a specific wavelength. An authentication device 1 includes a light source LS for irradiating a face of an authentication target person with light L in a specific wavelength band, and a first face image and a second face image of the authentication target person 100. Feature point extraction for extracting a plurality of feature points of the face of the authentication target person 100 based on the first image capturing system IS1 and the second image capturing system IS2 for acquisition and the first and second face images Unit 3, a three-dimensional information generation unit 4 for generating three-dimensional information of the face of the authentication target person 100 based on a plurality of feature points of the face of the authentication target person 100, and a three-dimensional face of the authentication target person 100. The authentication unit 6 is configured to be able to perform authentication. The plurality of feature points on the face of the authentication target person 100 include biometric information of the face of the authentication target person 100 that can be observed by irradiating the face of the authentication target person 100 with the light L in the specific wavelength band. [Selection diagram] Figure 1【課題】特定波長の光を照射することにより観測可能となる認証対象者の顔の生体情報を利用可能な認証装置を提供する。【解決手段】認証装置1は、認証対象者100の顔に対して特定波長帯域の光Lを照射するための光源LSと、認証対象者100の第1の顔画像および第2の顔画像を取得するための第1の撮像系IS1および第2の撮像系IS2と、第1および第2の顔画像に基づいて、認証対象者100の顔の複数の特徴点を抽出するための特徴点抽出部3と、認証対象者100の顔の複数の特徴点に基づいて、認証対象者100の顔の3次元情報を生成するための3次元情報生成部4と、認証対象者100の3次元顔認証を実行可能に構成された認証部6とを備える。認証対象者100の顔の複数の特徴点は、認証対象者100の顔に特定波長帯域の光Lを照射することにより観測可能となる認証対象者100の顔の生体情報を含む。【選択図】図1