BIOMETRIC AUTHENTICATION DEVICE AND COMPONENT FOR AUTHENTICATION

To provide a biometric authentication device which prevents a plurality of different persons from pressing a same area to be superior in sanitation and can reduce a risk that biometric authentication is impossible for all persons.SOLUTION: A biometric authentication device 1 comprises a component for authentication 70 including a hard member 72 which is made of a light-transmissive hard material and is to be touched with a finger 90 of a hand, an information detection unit 50 which is used to detect biometric information of the finger 90 with the component for authentication 70 in a prescribed position, a biometric authentication body 10 including a determination unit 21d which determines whether a person whose biometric information has been detected belongs to a group consisting of a plurality of persons or not on the basis of the biometric information.SELECTED DRAWING: Figure 2 【課題】異なる複数の人が同じエリアを押圧することがなくて衛生面で優れ、全ての人の生体認証を行えなくなるリスクも低減できる生体認証装置等を提供すること。【解決手段】生体認証装置１が、透光性の硬い材料で構成されて手の指９０が接触する硬質部材７２を含む認証用部品７０と、認証用部品７０が所定位置に存在している状態において指９０の生体情報を検知するのに用いられる情報検出部５０、及び生体情報に基づいて生体情報が検出された人が複数の人で構成される集団に属しているか否かを判定する判定部２１ｄを含む生体認証本体１０と、を備えるようにする。【選択図】図２