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1. (WO2002033962) IRIS IMAGING APPARATUS

Pub. No.:    WO/2002/033962    International Application No.:    PCT/JP2001/008889
Publication Date: Apr 25, 2002 International Filing Date: Oct 10, 2001
IPC: A61B 3/12
G06K 9/00
Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

WADA, Jyoji

IKOMA, Ken

TAMURA, Kazushige

NAKAIGAWA, Tomoyoshi

DOI, Makoto

OOI, Koji

OOTSUNA, Yoshinori

KOGANE, Haruo

KAWAZOE, Syuji

MIYABAYASHI, Kazuhiro

WAKIYAMA, Koji

Inventors: WADA, Jyoji

IKOMA, Ken

TAMURA, Kazushige

NAKAIGAWA, Tomoyoshi

DOI, Makoto

OOI, Koji

OOTSUNA, Yoshinori

KOGANE, Haruo

KAWAZOE, Syuji

MIYABAYASHI, Kazuhiro

WAKIYAMA, Koji

Title: IRIS IMAGING APPARATUS
Abstract:
High-speed high-precision imaging of an iris by a two-camera constitution of a wide-angle camera and an iris imaging telescopic camera. A range-finder (24) for measuring the distance to an object is provided in addition to a wide-angle camera (25) for imaging an object and a telescopic camera (22) focused on the iris of the object to capture a magnified image of the iris. Alternatively, in an iris imaging apparatus equipped with the wide-angle camera (25) and the telescopic camera (22), a rectangular imaging device fitted in the wide-angle camera (25) is disposed upright with the long sides parallel to the height of the object, and the wide-angle camera (25) is mounted on a tilt stage (20). The telescopic camera (22) mounted on the tilt stage (20) is so disposed that its optical axis may coincide with the rotary shaft of the tilt stage (20). The wide-angle camera (25) mounted on the tilt stage (20) is so disposed that its optical axis may cross the rotary shaft of the tilt stage (20) in the same plane. Thus, it is possible to rapidly determine an iris position from the image of the wide-angle camera (25).