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US 11,762,333 B2Granted
Reconstructing objects with display zero order light suppression
AssigneePacific Light & Hologram, Inc.
InventorsKamran Qaderi, Stephen John Hart, Robert Alan Hess, Jonathan Seamus Blackley
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Abstract
Methods, apparatus, devices, and systems for reconstructing three-dimensional objects with display zero order light suppression are provided. In one aspect, a method includes illuminating a display with light, a portion of the light illuminating display elements of the display, and modulating the display elements of the display with a hologram corresponding to holographic data to diffract the portion of the light to form a holographic scene corresponding to the holographic data, and to suppress display zero order light in the holographic scene. The display zero order light can include reflected light from the display.
Claims30
A method comprising:
- illuminating a display with light, a first portion of the light illuminating display elements of the display;
- and
- modulating the display elements of the display with a hologram corresponding to holographic data to
- i) diffract the first portion of the light to form a holographic scene corresponding to the holographic data, and
- ii) suppress display zero order light in the holographic scene, the display zero order light comprising reflected light from the display,
- wherein the holographic scene corresponds to a reconstruction cone with a viewing angle, the viewing angle of the reconstruction cone being dependent on at least one of one or more characteristics of the display or one or more wavelengths of the light, and
- wherein the hologram is preconfigured in a three-dimensional (3D) software application by a computing system, wherein, in a simulation of the 3D software application, a configuration cone corresponding to the reconstruction cone is moved, together with one or more objects in the configuration cone, with respect to the display in a global 3D coordinate system, such that the diffracted first portion of the light has at least one characteristic different from that of the display zero order light to cause the display zero order light to be suppressed in the holographic scene, wherein the holographic data is generated based on the moved configuration cone in the global 3D coordinate system, and wherein the holographic scene comprises one or more reconstructed objects in the reconstruction cone that correspond to the one or more objects in the configuration cone, the configuration cone having an apex angle identical to the viewing angle of the reconstruction cone.
4 more elements
A system comprising:
- a display comprising display elements separated with gaps on the display;
- and
- an optical device configured to illuminate the display with light, with a first portion of the light illuminating on the display elements,
- wherein the system is configured to modulate the display elements of the display with a hologram corresponding to holographic data to
- i) diffract the first portion of the light to form a holographic scene corresponding to the holographic data, and
- ii) suppress display zero order light in the holographic scene, the display zero order light comprising reflected light from the display,
- wherein the holographic scene corresponds to a reconstruction cone with a viewing angle, the viewing angle of the reconstruction cone being dependent on at least one of one or more characteristics of the display or one or more wavelengths of the light, and
- wherein the hologram is preconfigured in a simulation of a three-dimensional (3D) software application, in which a configuration cone corresponding to the reconstruction cone is moved, together with one or more objects in the configuration cone, with respect to the display in a global 3D coordinate system and the holographic data is generated based on the moved configuration cone in the global 3D coordinate system, such that the diffracted first portion of the light has at least one characteristic different from that of the display zero order light to cause the display zero order light to be suppressed in the holographic scene, wherein the holographic data is generated based on the moved configuration cone in the global 3D coordinate system, and wherein the holographic scene comprises one or more reconstructed objects in the reconstruction cone that correspond to the one or more objects in the configuration cone, the configuration cone having an apex angle identical to the viewing angle of the reconstruction cone.
5 more elements
Dependencies are inferred from the claim text.