PROBLEM TO BE SOLVED: To provide an iris authentication device capable of easily performing iris authentication, even when the position of the eye of a user is not in the imaging direction of photographing means and to provide an iris authentication system.SOLUTION: The iris authentication device includes an imaging part 4 which captures the image of an imaging area 433 which is an area in an imaging direction 432, a first infrared detection part 51 and a second infrared detection part 52 which detect infrared radiated from a face F, a driving part 7 which integrally changes the directions of the imaging part 4, the first infrared detection part 51, and the second infrared detection part 52, a driving control part 101 which executes driving processing for directing the imaging direction 433 of the imaging part 4 toward the direction of the face F radiating the infrared on the basis of the infrared detected by the first infrared detection part 51 and the second infrared detection part 52 by the driving part 7, and an authentication processing part 104 which executes the iris authentication on the basis of a photographed image captured by the imaging part 4.SELECTED DRAWING: Figure 3【課題】ユーザの目の位置が撮影手段の撮像方向にない場合であっても、虹彩認証を行うことが容易な虹彩認証装置、及び虹彩認証システムを提供する。【解決手段】撮像方向４３２の領域である撮像領域４３３の画像を撮像する撮像部４と、顔Ｆから放射される赤外線を検出する第一赤外線検出部５１及び第二赤外線検出部５２と、撮像部４、第一赤外線検出部５１及び第二赤外線検出部５２の向きを一体に変化させる駆動部７と、第一赤外線検出部５１及び第二赤外線検出部５２により検出された赤外線に基づいて赤外線を放射する顔Ｆの方向へ、駆動部７によって撮像部４の撮像方向４３３を向けさせる駆動処理を実行する駆動制御部１０１と、撮像部４によって撮像された撮影画像に基づき虹彩認証を実行する認証処理部１０４とを備えた。【選択図】図３
