Share Email Print

Proceedings Paper

Holographic Fingerprint Sensor
Author(s): Shin Eguchi; Seigo Igaki; Fumio Yamagishi; Hiroyuki Ikeda; Takefumi Inagaki
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The fingerprint sensor that we developed uses a hologram. Two requirements are important for actual use; laser safety and high-contrast images. The illumination method we developed uses total reflection and a new type of detection. For safety, total-reflection lighting ensures that laser beams cannot enter an operator's eyes. To obtain high-contrast images, signal and noise light were separated.

Paper Details

Date Published: 25 May 1989
PDF: 6 pages
Proc. SPIE 1051, Practical Holography III, (25 May 1989); doi: 10.1117/12.951467
Show Author Affiliations
Shin Eguchi, Fujitsu Laboratories Ltd. (Japan)
Seigo Igaki, Fujitsu Laboratories Ltd. (Japan)
Fumio Yamagishi, Fujitsu Laboratories Ltd. (Japan)
Hiroyuki Ikeda, Fujitsu Laboratories Ltd. (Japan)
Takefumi Inagaki, Fujitsu Laboratories Ltd. (Japan)

Published in SPIE Proceedings Vol. 1051:
Practical Holography III
Stephen A. Benton, Editor(s)

© SPIE. Terms of Use
Back to Top