Device and a method for producing a diffractive microstructure

Details Device and a method for producing a diffractive microstructure Device and a method for producing a diffractive microstructure

2005-08-05

2010-11-09

Wyrozebski, Kat (Department: 1791)

Printing

Embossing or penetrating

Processes

C101S022000, C264S293000, C425S385000

Reexamination Certificate

active

07827907

ABSTRACT:
Micro-protrusions, which constitute a diffractive microstructure, are produced by embossing the surface layer of a substrate by an embossing member having microgrooves in such a way that the cross-sectional area of a produced micro-protrusion is substantially smaller than the cross-sectional area of the microgroove producing said micro-protrusion. Thus, the embossing pressure is small, the risk of adhesion is reduced, it is possible to use a low embossing temperature, and microstructures may be produced at a high speed. Furthermore, the same embossing member may be used for producing a low microstructure, a normal microstructure, and a high microstructure.

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patent: WO 03/054475 (2003-07-01), None
PCT/ISA/210—International Search Report.
PCT/IPEA/409—International Preliminary Report on Patentability.

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