An apparatus and method to produce a hologram of a cross-section of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as light, from the object. The electromagnetic radiation assembly is further configured to diffract the received electromagnetic radiation and transmit a diffracted electromagnetic radiation. An image capture assembly is configured to capture an image of the diffracted electromagnetic radiation and produce the hologram of the cross-section of the object from the captured image. The hologram of the cross-section includes information regarding a single cross-section of the object.

A method and apparatus for processing a three-dimensional image are provided. The method includes receiving original color data and original depth data of a plurality of layers of an original holographic image, selecting reference layers from among the plurality of layers, mapping adjustment color data of a non-selected layer, which is determined based on using the original depth data of the non-selected layer and the reference layers, to each of the reference layers, and generating a computer generated hologram image by using the original color data of the reference layers and the adjustment color data that has been mapped to the reference layers.

Provided is a method and an apparatus for correcting a distortion of a three-dimensional (3D) hologram, in which the method is performed by the apparatus and includes generating a sliced two-dimensional (2D) section of a hologram by slicing the hologram while performing translation in an optical axis direction, obtaining a sharp sliced image of the hologram from a sequence of images of generated sliced 2D sections using a focusing function of a camera, and analyzing a distortion of the obtained sliced image, and using such a method and apparatus may enable correction of a distortion of a 3D hologram independently from a display structure.

A system and method to produce a hologram of a single plane of a three dimensional object includes an electromagnetic radiation assembly to elicit electromagnetic radiation from a single plane of said object, and an assembly to direct the elicited electromagnetic radiation toward a hologram-forming assembly. The hologram-forming assembly creates a hologram that is recorded by an image capture assembly and then further processed to create maximum resolution images free of an inherent holographic artifact.

A hologram image apparatus includes a plurality of holographic panels, each holographic panel comprising a transparent panel encoded with a portion of a composite hologram image. The hologram image apparatus also includes one or more light sources configured to illuminate each holographic panel of the plurality of the holographic panels from one or more incident angles to produce the composite hologram image.

A system and method to produce a hologram of a single plane of a three dimensional object includes an electromagnetic radiation assembly to elicit electromagnetic radiation from a single plane of said object, and an assembly to direct the elicited electromagnetic radiation toward a hologram-forming assembly. The hologram-forming assembly creates a hologram that is recorded by an image capture assembly and then further processed to create maximum resolution images free of an inherent holographic artifact.

A method of computing a hologram by determining the wavefronts at the approximate observer eye position that would be generated by a real version of an object to be reconstructed. In normal computer generated holograms, one determines the wavefronts needed to reconstruct an object; this is not done directly in the present invention. Instead, one determines the wavefronts at an observer window that would be generated by a real object located at the same position of the reconstructed object. One can then back-transforms these wavefronts to the hologram to determine how the hologram needs to be encoded to generate these wavefronts. A suitably encoded hologram can then generate a reconstruction of the three-dimensional scene that can be observed by placing one's eyes at the plane of the observer window and looking through the observer window.

A head worn imaging system includes a light source configured to generate a light beam. The system also includes a light guiding optical element having a thickness between 0.1 and 1.5 mm and configured to propagate at least a portion of the light beam by total internal reflection. The system further includes an entry portion and an exit portion of the light guiding optical element configured to selectively allow light addressing the exit portion to exit the light guiding optical element based on the angle of incidence of the light, the radius of curvature of the light and/or the wavelength of the light.

A method and apparatus for processing a three-dimensional image are provided. The method includes receiving original color data and original depth data of a plurality of layers of an original holographic image, selecting reference layers from among the plurality of layers, mapping adjustment color data of a non-selected layer, which is determined based on using the original depth data of the non-selected layer and the reference layers, to each of the reference layers, and generating a computer generated hologram image by using the original color data of the reference layers and the adjustment color data that has been mapped to the reference layers.

A multi-beam volumetric resin curing system and method for whole-volume additive manufacturing of an object includes a bath containing a photosensitive resin, a light source for producing a light beam, and a spatial light modulator which produces a phase- or intensity-modulated light beam by impressing a phase profile or intensity profile of an image onto a light beam received from the light source. The system and method also include projection optics which then produces multiple sub-image beams from the modulated light beam which are projected to intersect each other in the photosensitive resin to cure select volumetric regions of the resin in a whole-volume three-dimensional pattern representing the object.