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Proceedings Paper

"Crystagram Neo": a high-resolution imaging by EB technology
Author(s): Akira Nagano; Toshiki Toda; Susumu Takahashi; Fujio Iwata
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Paper Abstract

A new type of grating image that provides a higher resolution imaging known as 'Crystagram Neo' is presented. As in a conventional grating image, a Crystagram Neo is constructed by a lot of tiny diffraction grating cells written by Electron Beam technology. Its primary point is a novel design method to arrange cells and to make gratings in those cells. On a conventional dot matrix grating pattern, the identical size cells are arranged orderly in a matrix order, and the gratings exist inside the cells by a monotonous arrangement. On the other hand, each gratin cell of Crystagram Neo have various size, and gratings are made with the cell independent distribution. BY this method, a Crystagram Neo which ash more flexible arranged gratings supplies a full color image, superfine micro characters with smooth shapes among other advantages. These properties provide even more effective measures against counterfeiting for security usage.

Paper Details

Date Published: 3 June 2002
PDF: 9 pages
Proc. SPIE 4659, Practical Holography XVI and Holographic Materials VIII, (3 June 2002); doi: 10.1117/12.469260
Show Author Affiliations
Akira Nagano, Toppan Printing Co., Ltd. (Japan)
Toshiki Toda, Toppan Printing Co., Ltd. (Japan)
Susumu Takahashi, Toppan Printing Co., Ltd. (Japan)
Fujio Iwata, Toppan Printing Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 4659:
Practical Holography XVI and Holographic Materials VIII
Sylvia H. Stevenson; T. John Trout; Stephen A. Benton; Sylvia H. Stevenson; T. John Trout, Editor(s)

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