Wide-viewing angle holographic display apparatus
AssigneeElectronics and Telecommunications Research Institute
InventorByung Gyu CHAE
Life of this patent
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Abstract
A holographic display apparatus is provided. The holographic display apparatus may include an input optical unit to illuminate coherent parallel light to a spatial light modulator (SLM), the SLM to generate a plurality of hologram-modulated diffraction beams by illuminating the coherent parallel light in a plurality of directions, or to generate hologram-modulated higher-order diffraction beams by illuminating the coherent parallel light in a single direction, and an optical imaging unit to reproduce at least one holographic three-dimensional (3D) image with different viewpoints on a single imaging area, using the generated at least one diffraction beam.
Claims19
A holographic display apparatus, comprising:
- an input optical unit to illuminate coherent parallel light in an arbitrary direction;
- a spatial light modulator (SLM) to spatially modulate the emitted coherent parallel light, and to generate a diffraction beam;
- and
- an optical imaging unit to reproduce at least one holographic three-dimensional (3D) image with different viewpoints on a single imaging area, using the generated at least one diffraction beam.
A holographic display apparatus, comprising:
- a light source module to generate a single coherent parallel light;
- a spatial light modulator (SLM) to spatially modulate the generated coherent parallel light, and to generate at least one higher-order diffraction beam;
- and
- an optical imaging unit to reproduce at least one holographic three-dimensional (3D) image with different viewpoints on a single imaging area, using the generated at least one higher-order diffraction beam.
Dependencies are inferred from the claim text.