"Crystagram Neo": a high-resolution imaging by EB technology

Akira Nagano; Toshiki Toda; Susumu Takahashi; Fujio Iwata

doi:10.1117/12.469260

3 June 2002 "Crystagram Neo": a high-resolution imaging by EB technology

Akira Nagano, Toshiki Toda, Susumu Takahashi, Fujio Iwata

Proceedings Volume 4659, Practical Holography XVI and Holographic Materials VIII; (2002) https://doi.org/10.1117/12.469260
Event: Electronic Imaging, 2002, San Jose, California, United States

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.

Citation Download Citation

Akira Nagano, Toshiki Toda, Susumu Takahashi, and Fujio Iwata ""Crystagram Neo": a high-resolution imaging by EB technology", Proc. SPIE 4659, Practical Holography XVI and Holographic Materials VIII, (3 June 2002); https://doi.org/10.1117/12.469260

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