Computer-assisted holographic method and device

Details Computer-assisted holographic method and device Computer-assisted holographic method and device

2007-10-02

2007-10-02

Chang, Audrey (Department: 2872)

Optical: systems and elements

Holographic system or element

For synthetically generating a hologram

C359S022000, C359S900000

Reexamination Certificate

active

09530968

ABSTRACT:
The method consists of computing (E1-E4) a set of two-dimensional images in a three-dimensional geometrical space representing a virtual object from respective different viewpoints. The virtual object is represented by digital data stored in a computer. Holograms are computed (E5-E6) for the respective two-dimensional images using a fast complex transform, such as a Fourier transform. The holograms are then juxtaposed (E7) to form a digital hologram of the object which is physically reproduced (E8) by a spatial light modulator. A three-dimensional image of the object is obtained by illuminating the spatial light modulator with a coherent source.

REFERENCES:
patent: 4969700 (1990-11-01), Haines
patent: 5852504 (1998-12-01), Kato et al.
patent: 6038042 (2000-03-01), Takemori
patent: 6344909 (2002-02-01), Grossetie et al.
Hariharan, P.Optical holography. Principles, techniques and applications, Cambridge University Press, Cambridge, 1984. pp. 146-155.

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