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US 11,619,825 B2Granted
Method and apparatus for displaying binocular hologram image
AssigneeElectronics and Telecommunications Research Institute
InventorMin-Sung Yoon
Life of this patent
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Abstract
A method displays a binocular hologram image. The method includes generating a light beam of an incident wave field having coherence, expanding the generated light beam to the size of the active area of a display, converging the expanded light beam on the respective positions of the eyes of a user, generating digital hologram content, and displaying a hologram image based on the converged light beam and on the digital hologram content.
Claims18
A method for displaying a binocular hologram image, comprising:
- generating a light beam of an incident wave field having coherence;
- expanding the generated light beam to a size of an active area of a display;
- converging the expanded light beam on respective positions of left and right eyes of a user;
- generating digital hologram content;
- and
- displaying a hologram image based on the converged light beam and on the digital hologram content,
- wherein generating the digital hologram content comprises encoding two computer-generated holograms (CGHs) for the left and right eyes which are suitable for a foldable display, and
- wherein converging the expanded light beam comprises:
- dividing the expanded light beam into two light beams;
- and
- deflecting the two light beams in left and right directions, respectively,
- wherein the two deflected light beams are radiated to a Spatial Light Modulator (SLM) panel unit on the left side and an SLM panel unit on the right side.
9 more elements
An apparatus for displaying a binocular hologram image, comprising:
- a light source unit for generating a light beam of an incident wave field having coherence;
- an expansion unit for expanding the generated light beam to a size of an active area of a display;
- a convergence unit for converging the expanded light beam on respective positions of left and right eyes of a user;
- a content generation unit for generating digital hologram content;
- and
- an image display unit for displaying a hologram image based on the converged light beam and on the digital hologram content,
- wherein generating the digital hologram content comprises encoding two computer-generated holograms (CGHs) for the left and right eyes which are suitable for a foldable display,
- wherein the convergence unit converges the expanded light beam by passing the expanded light beam through a beam-deflecting diffraction grating in which a member capable of converging a beam is included, and
- wherein the expanded light beam is deflected into two light beams in left and right directions and the two deflected light beams are radiated to a Spatial Light Modulator (SLM) panel unit on the left side and an SLM panel unit on the right side.
6 more elements
Dependencies are inferred from the claim text.