Personal Indentification Device

Abstract

The present invention provides a thin personal identification device that produces a high-quality image. The personal identification device includes an infrared light source 30; a transmission light quantity control element array 40, which includes a plurality of light transmission control elements for exercising control to transmit or block light that is radiated from the infrared light source 30 to a living body; and a light receiving element array 50H, which includes a plurality of light receiving elements for receiving light that is radiated from the living body. The infrared light source 30, transmission light quantity control element array 40, and light receiving element array 50H are positioned on the same side of the living body. A microcomputer 20 controls the transmission light quantity control element array 40 to combine a first image, which is obtained from the living body when one region of the living body is radiated with light transmitted from the infrared light source 30, with a second image, which is obtained when another region of the living body is radiated, and identifies a person in accordance with the combined image.

Dependencies are inferred from the claim text.