Method for calculating and producing a computer-generated...

Optical: systems and elements – Holographic system or element – Authentication

Reexamination Certificate

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Details

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

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