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Proceedings Paper

Magnetic and optical complex sensor unit
Author(s): Kazuaki Chiba; Takao Kobayashi; Yuichi Obara; Hajime Mochizuki
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Paper Abstract

The authors developed a high-performance magnetic and optical complex sensor unit used for applications requiring high security, such as discrimination of notes, cards, etc. This new sensor unit has a sensor head constructed of a magnetic head and a reflective-type photo sensor embedded in a small gap of the magnetic head. And enables correct pattern recognition by optical information obtained together with conventional magnetic information. Traveling this sensor head in contact with the surface of the subject of discrimination can detect difference of reflectance at the same time as the magnetic detection at the same point of place. As a result it became possible to discriminate for example, bills of any size in any country.

Paper Details

Date Published: 1 November 1990
PDF: 13 pages
Proc. SPIE 1338, Optoelectronic Devices and Applications, (1 November 1990); doi: 10.1117/12.22996
Show Author Affiliations
Kazuaki Chiba, Furukawa Electric Co., Ltd. (Japan)
Takao Kobayashi, Furukawa Electric Co., Ltd. (Japan)
Yuichi Obara, Furukawa Electric Co., Ltd. (Japan)
Hajime Mochizuki, Furukawa Electric Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 1338:
Optoelectronic Devices and Applications
Sriram Sriram, Editor(s)

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