A light projection system, including a light source to provide an output beam of light, an angular light modulator (ALM) comprising a plurality of pixels, each pixel having an ON state and an OFF state, the ALM positioned to receive output beam on the plurality of pixels, and a processor coupled to the ALM. The processor is programmed to control a first set of the pixels to transition between the OFF state and the ON state while the beam is incident on the pixels. An amount of light is selectively directed in a direction by the first set. The processor is also programmed to control a second set of the plurality of pixels to remain in the OFF state while the beam is incident on the plurality of pixels. As a result, the ALM operates as a spatial light modulator and an angular light modulator of the beam of light.

A holographic display apparatus includes: a light source; a spatial light modulator configured to modulate light from the light source according to an image to be displayed on an object plane; and a processor configured to generate a computer generated hologram (CGH) in which a phase value of hologram data to be displayed on a reference plane of the spatial light modulator is 0, the processor being configured to apply a light modulation signal based on the CGH to the spatial light modulator.

A method of fabricating a component (1) comprises the steps of providing precursor material in a working medium, creating acoustic forces and positioning the precursor material in the working medium under the effect of the acoustic forces, so that a material distribution is formed, which has a shape of the component to be fabricated, and subjecting at least one of the material distribution and the working medium to a fixation, so that the precursor material of the material distribution or the working medium surrounding the material distribution is bound, wherein the step of creating the acoustic forces includes generating an acoustic interference pattern (5), and the material distribution (4) is formed by moving the precursor material (2) towards energy extrema of the acoustic interference pattern (5). Furthermore, an apparatus (100) for fabricating a component (1) is described.

A holographic projector having an optical path is described. The holographic projector comprises a first spatial light modulator arranged to display a first hologram, and a first light source. The first light source is arranged to illuminate the first spatial light modulator with light of a first wavelength such that a first holographic reconstruction corresponding to the first hologram is formed on a replay plane. The holographic projector further comprises a continuous block of transparent material. At least part of the optical path is formed through the continuous block of transparent material. The transparent material has a refractive index greater than air.

A holographic optical system and a holographic display method may be efficiently applied when using a spatial light modulator (SLM). A holographic display apparatus includes a spatial light modulator (SLM) configured to reproduce a hologram, and an optical system configured to perform Fourier transform with respect to the hologram of the SLM using a pair of first and second lenses, the first and second lenses being confocal. A Fourier plane which is a display reference image plane is positioned in the same plane space as the second lens.

Intelligent hologram communication continuity (e.g., using a computerized tool) is enabled. A method can comprise: determining, by a device comprising a processor, a context associated with a live interaction, wherein the live interaction is associated with a user profile and transmitted via a network; determining, by the device, hardware data representative of hardware associated with transmission of the live interaction via the network; in response to a hardware criterion being determined to be threshold satisfied by the hardware data, generating, by the device, using a hologram generation model and based on the context, a synthetic hologram associated with the live interaction, wherein the hologram generation model has been generated based on machine learning applied to past context data representative of past contexts of past live interactions associated with the user profile, from prior to the live interaction; and transmitting, by the device, the synthetic hologram instead of the live interaction.

According to one embodiment, a stereoscopic image display device includes a three-dimensional pixel unit, a backlight, and an arithmetic/control circuit. The three-dimensional pixel unit includes a plurality of pixel cells that are formed of an optical material having electrically changeable optical characteristics, are arranged in a mutually separated manner and in a three-dimensional manner, and are electrically connected with transparent wiring patterns. The backlight is configured to emit illumination light to the three-dimensional pixel unit. The arithmetic/control circuit is configured to control the plurality of pixel cells individually via the wiring patterns on the basis of input three-dimensional image data to cause the three-dimensional pixel unit to function as a transmissive hologram.

A unique method and a device to generate free space “pop-out” & “sink-in” holograms is disclosed herein. The hologram disclosed herein does not use any special medium, mirrors, reflective screens or wearables such as headgear & special glasses. The hologram disclosed herein can be created in free space, outer space or in air, without any other optical components except for the special display screen of the hologram device. This device demonstrates a free space hologram and the hologram Augmented Reality & hologram Virtual Reality. A camera capable of hologram quality images equipped with a smart lens which mimics the human eye by changing it's lens aperture according to the light intensity as the pupil of the human eye and focus & capture “pop-out” & “sink-in” hologram images is disclosed herein. The audio which is incorporated with the device provide multi dimensional multi directional audio effects.

Systems and methods for generating multi-layer hologram projections are described. For example, a system generally comprises at least two projection layers in a spaced-apart arrangement; at least one layer-specific projector device associated with each of the at least two projection layers, each layer-specific projector device being configured to project one or more images on an associated projection layer; and a processor coupled to each of the at least one layer-specific projector device, the processor being configured to control each layer-specific projector device to project one or more images on the corresponding projection layer.

Systems and methods for generating multi-layer hologram projections are described. For example, a system generally comprises at least two projection layers in a spaced-apart arrangement; at least one layer-specific projector device associated with each of the at least two projection layers, each layer-specific projector device being configured to project one or more images on an associated projection layer; and a processor coupled to each of the at least one layer-specific projector device, the processor being configured to control each layer-specific projector device to project one or more images on the corresponding projection layer.