Methods and systems may provide for 3D volumetric displays. Such 3D volumetric displays may include a transparent enclosed volume holding a gas as a stationary gain medium. A scanning mirror may direct a light beam from a light source. A voxel projector may receive the light beam from the scanning mirror and may project an expanded beam into a volume of the stationary gain medium. Changes in the X and Y orientation between the light beam from the scanning mirror and the voxel projector results in relatively larger changes in the X and Y dimension of the expanded beam that is projected into the volume of the stationary gain medium to produce a 3D image.

The present disclosure provides a light field display device. The light field display device includes a plurality of imaging modules. Each of the imaging modules includes a liquid crystal lens array and a display screen, the liquid crystal lens array is disposed on a light exit side of the display screen, and images of the plurality of imaging modules are parallel to each other.

The present disclosure provides a light field display device. The light field display device includes a plurality of imaging modules. Each of the imaging modules includes a liquid crystal lens array and a display screen, the liquid crystal lens array is disposed on a light exit side of the display screen, and images of the plurality of imaging modules are parallel to each other.

The current invention relates to the methods to achieve virtual reality with making virtual objects not under focus of a viewer in virtual scenes appear defocused, and making objects under focus of said viewer appearing focused and clear to said viewer. The current invention also relates to the methods to achieve augmented reality with making virtual objects in virtual scenes associated with real objects not under focus of a viewer in real scenes appear defocused to said viewer in said virtual scene, and making virtual objects in virtual scenes associated with real objects being under focus of a viewer in real scenes appear focused to said viewer in said virtual scene.

The current invention relates to the methods to achieve virtual reality with making virtual objects not under focus of a viewer in virtual scenes appear defocused, and making objects under focus of said viewer appearing focused and clear to said viewer. The current invention also relates to the methods to achieve augmented reality with making virtual objects in virtual scenes associated with real objects not under focus of a viewer in real scenes appear defocused to said viewer in said virtual scene, and making virtual objects in virtual scenes associated with real objects being under focus of a viewer in real scenes appear focused to said viewer in said virtual scene.

An image transmission device of a multifocal display system is described, for transmitting a set of N composite images based on a set of N primary images to an image reception device. N is greater or equal 2, and each of the N primary images has a focus distance associated therewith. The image transmission device includes processing circuitry configured to partition each of the N primary images into image portions and generate the N composite images by placing each image portion of each of the N primary images into one of the N composite images such that each of the N composite images comprises image portions from two or more of the N primary images. A communication interface transmits the N composite images to the image reception device (103).

An image transmission device of a multifocal display system is described, for transmitting a set of N composite images based on a set of N primary images to an image reception device. N is greater or equal 2, and each of the N primary images has a focus distance associated therewith. The image transmission device includes processing circuitry configured to partition each of the N primary images into image portions and generate the N composite images by placing each image portion of each of the N primary images into one of the N composite images such that each of the N composite images comprises image portions from two or more of the N primary images. A communication interface transmits the N composite images to the image reception device (103).

A multiview backlight includes a first array active emitters configured to provide a first plurality of directional light beams and a second array of active emitters configured to provide a second plurality of directional light beams. The second array of active emitters is interleaved between active emitters of the first array of active emitters. Further, directional light beams of each of the first and second directional light beam pluralities have directions corresponding to view directions of a multiview display. A multiview display further includes an array of light valves configured to modulate the directional light beams to display a multiview image. An image resolution of the multiview image is configured to be dynamically selectable according to operational mode.

An exemplary display is placed in an optical pathway extending from an entrance pupil of a person's eye to a real-world scene beyond the eye. The display includes at least one 2-D added-image source that is addressable to produce a light pattern corresponding to a virtual object. The source is situated to direct the light pattern toward the person's eye to superimpose the virtual object on an image of the real-world scene as perceived by the eye via the optical pathway. An active-optical element is situated between the eye and the added-image source at a location that is optically conjugate to the entrance pupil and at which the active-optical element forms an intermediate image of the light pattern from the added-image source. The active-optical element has variable optical power and is addressable to change its optical power to produce a corresponding change in perceived distance at which the intermediate image is formed, as an added image to the real-world scene, relative to the eye.

An exemplary display is placed in an optical pathway extending from an entrance pupil of a person's eye to a real-world scene beyond the eye. The display includes at least one 2-D added-image source that is addressable to produce a light pattern corresponding to a virtual object. The source is situated to direct the light pattern toward the person's eye to superimpose the virtual object on an image of the real-world scene as perceived by the eye via the optical pathway. An active-optical element is situated between the eye and the added-image source at a location that is optically conjugate to the entrance pupil and at which the active-optical element forms an intermediate image of the light pattern from the added-image source. The active-optical element has variable optical power and is addressable to change its optical power to produce a corresponding change in perceived distance at which the intermediate image is formed, as an added image to the real-world scene, relative to the eye.