Optical identifier comprising randomly oriented partial faces

Details Optical identifier comprising randomly oriented partial faces Optical identifier comprising randomly oriented partial faces

2011-03-01

2011-03-01

Nguyen, Sang (Department: 2886)

Optics: measuring and testing

Document pattern analysis or verification

C382S172000, C382S108000, C382S195000

Reexamination Certificate

active

07898648

ABSTRACT:
The invention relates to an optical identifier (30) for generating an identification signal in response to an incident radiation beam (12), and to a corresponding method. In order to provide an optical identifier (30) which can be produced by a simplified process and which has nevertheless a sufficient or even improved stability against environmental interferences it is proposed that said identifier comprises a carrier layer (32), at least partially transparent to said radiation beam (12), having a first scattering face (34) comprising a plurality of randomly oriented partial faces for scattering at least a part of said radiation beam (12), wherein said identification signal is formed by a scattered part of said radiation beam (12). Further, a device comprising said identifier, and a reading apparatus for identifying the identifier are proposed.

REFERENCES:
patent: 4677435 (1987-06-01), Causse D'Agraives et al.
patent: 5013971 (1991-05-01), de La Chapelle
patent: 5101184 (1992-03-01), Antes
patent: 5200794 (1993-04-01), Nishiguma et al.
patent: 5291006 (1994-03-01), Nishiguma et al.
patent: 5291027 (1994-03-01), Kita et al.
patent: 5394234 (1995-02-01), Bianco et al.
patent: 5619025 (1997-04-01), Hickman et al.
patent: 5783909 (1998-07-01), Hochstein
patent: 5856070 (1999-01-01), Korth
patent: 6061122 (2000-05-01), Hoshino et al.
patent: 6285139 (2001-09-01), Ghanem
patent: 6359734 (2002-03-01), Staub et al.
patent: 6359918 (2002-03-01), Bielas
patent: 6466188 (2002-10-01), Cato
patent: 6584214 (2003-06-01), Pappu et al.
patent: 6693394 (2004-02-01), Guo et al.
patent: 6871788 (2005-03-01), Tompkin et al.
patent: 2002/0126889 (2002-09-01), Pikler et al.
patent: 2002/0163179 (2002-11-01), Dubner et al.
patent: 2003/0063772 (2003-04-01), Smith et al.
patent: 2003/0117087 (2003-06-01), Barth et al.
patent: 2004/0041526 (2004-03-01), Vollrath
patent: 2004/0112962 (2004-06-01), Farrall et al.
patent: 2007/0085337 (2007-04-01), Endres et al.
patent: 1113708 (2001-07-01), None
patent: 2221870 (1990-02-01), None
patent: 2304077 (1997-03-01), None
ISR/Written Opinion of the International Searching Authority PCT/IB2005/053401.

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