Method of computing a hologram for reconstructing an object using a display device
AssigneeSeeReal Technologies S.A.
InventorArmin Schwerdtner
Life of this patent
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Abstract
A method of computing a hologram for reconstructing an object using a display device. The display device enables a holographic reconstruction of the object. The display device includes a light source and an optical system to illuminate a hologram-bearing medium being encodable with the hologram. The method includes the steps of: (a) computing the hologram by determining the wavefronts at an approximate observer eye position that would be generated by a real version of the object to be reconstructed; and (b) encoding the computed hologram in the hologram-bearing medium.
Claims32
A display device for reconstructing a three dimensional scene, the display device comprising:
- an optical system;
- at least one light source;
- and
- a hologram-bearing medium;
- the at least one light source and the optical system are adapted to illuminate the hologram-bearing medium being encodable with a hologram,
- the hologram comprises a region with information needed to reconstruct a single point of the three dimensional scene, the single point being visible from a defined viewing position, the region being:
- (a) encoded with information for that single point in the reconstructed three dimensional scene;
- (b) the only region in the hologram encoded with information for that single point;
- and
- (c) restricted in size to form a portion of an entire hologram, the size being such that multiple reconstructions of that point caused by higher diffraction orders are not visible at the defined viewing position.
A method for reconstructing a three dimensional scene using a display device, the display device comprising:
- an optical system;
- at least one light source;
- and
- a hologram-bearing medium;
- the at least one light source and the optical system are adapted to illuminate the hologram-bearing medium being encodable with a hologram,
- the hologram comprises a region with information needed to reconstruct a single point of the three dimensional scene, the single point being visible from a defined viewing position, the region being:
- (a) encoded with information for that single point in the reconstructed three dimensional scene;
- (b) the only region in the hologram encoded with information for that single point;
- and
- (c) restricted in size to form a portion of an entire hologram, the size being such that multiple reconstructions of that point caused by higher diffraction orders are not visible at the defined viewing position, wherein the method comprises the step of generating the hologram.
Dependencies are inferred from the claim text.