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Fingerprint input apparatus and personal authentication system

  • US 7,349,562 B2
  • Filed: 06/24/2004
  • Issued: 03/25/2008
  • Est. Priority Date: 06/27/2003
  • Status: Expired due to Fees
First Claim
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1. A fingerprint input apparatus comprising:

  • illumination means for irradiating a finger with a light;

    a solid-state image pickup element substrate on which a solid-state image pickup element is formed; and

    a protective member adhered to a surface of said solid-state image pickup element substrate, at the same side on which the solid-state image pickup element is formed,wherein a fingerprint image of said finger is read while sliding said finger on a surface of said protective member,wherein the solid-state image pickup element substrate and the protective member each have two longitudinal sides extending in a direction perpendicular to a direction of sliding the finger, such that one longitudinal side of the solid-state image pickup element substrate is aligned in the same plane with one longitudinal side of the protective member in a thickness direction of the protective member, while the other longitudinal side of the solid-state image pickup element substrate is aligned in the same plane with the other longitudinal side of the protective member in a thickness direction of the protective member,wherein the illumination means and the solid-state image pickup element substrate are arranged side by side on a wiring substrate along the direction of sliding said finger, andwherein the solid-state image pickup element substrate has a portion of its surface on which the solid-state image pickup element is formed, at least at one end of the solid-state image pickup element substrate in the longitudinal direction, to which the protective member is not adhered, such that the solid-state image pickup element substrate is exposed.

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