Optical: systems and elements – Holographic system or element – Authentication
Reexamination Certificate
2007-03-20
2007-03-20
Assaf, Fayez G. (Department: 2872)
Optical: systems and elements
Holographic system or element
Authentication
C359S024000, C359S029000, C359S900000
Reexamination Certificate
active
10888532
ABSTRACT:
The invention relates to a method for calculating a computer-generated hologram, in which the pixel distribution of the computer-generated hologram is calculated, in which the pixel distribution of a macroscopic superstructure is calculated and in which the pixel distribution of at least one computer-generated hologram is interconnected with the pixel distribution of the macroscopic superstructure to form a pixel distribution to be written in a storage medium. Similarly, the invention relates to a method for writing the hologram, a storage medium and also a reading device. Therefore, both a computer-generated hologram and a macroscopic superstructure which can contain directly readable information can be brought together in a pixel distribution.
REFERENCES:
patent: 4129382 (1978-12-01), Greenaway et al.
patent: 4171864 (1979-10-01), Jung et al.
patent: 5909313 (1999-06-01), Lee
patent: 6865001 (2005-03-01), Long et al.
patent: WO 94/06097 (1994-03-01), None
Borgsmüller Stefan
Noehte Steffen
Schulte-Wieking Kay
Assaf Fayez G.
Proskauer Rose LLP
tesa scribos GmbH
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