Optical: systems and elements – Holographic system or element – For synthetically generating a hologram
Reexamination Certificate
2006-12-20
2011-11-01
Chwasz, Jade R (Department: 2872)
Optical: systems and elements
Holographic system or element
For synthetically generating a hologram
C359S021000
Reexamination Certificate
active
08049941
ABSTRACT:
To compensate for an inhomogeneous brightness perception in a holographic reconstruction of 3D-scenes (4), a computing means encodes modulator cells of a SLM with a hologram point data pattern. Multiple bundles of rays illuminate the surface of the SLM and an array of focusing elements (21, 23) directs the bundles of rays to an observer's eye positions. Geometrical and optical properties of the array cause dissimilarly affected illumination regions on the SLM surface. The computing means determine parameters which describe the extent of these effects in combination with an expected spatial filtering at the eye pupil of the observer's eyes. Using these parameters, the computing means estimates which local errors of the reconstruction caused by these dissimilarly affected illumination regions will be perceived by the observer when watching the reconstruction, and corrects the hologram point data pattern such that the reconstruction appears at a corrected brightness uniformity level.
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International Search Report issued in priority Application No. PCT/EP2006/012309.
Chwasz Jade R
Saul Ewing LLP
SeeReal Technologies S.A.
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