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 display system that may comprise a retro-reflective screen configured to reflect incident light along a direction that is opposite to the direction of propagation of the incident light, and a projector that may project light characterizing an image or video to the retro-reflective screen. An array of optical elements or an individual optical element may be positioned between the retro-reflective screen and the projector. The array of optical elements or individual optical element may direct the light from the projector to the retro-reflective screen in a manner such that the image or video is viewable by a user at an observation angle of at least about 2 degrees.

An air-floating-video display apparatus includes a Liquid Crystal Display panel, a light source apparatus configured to supply a light in a specific polarization direction to the LCD panel, and a retroreflector that includes a phase difference plate on a retroreflection surface. A polarization separation member is disposed in a space between the LCD panel and the retroreflector. The polarization separation member is configured to once transmit a video light of a specific polarization from the LCD panel to the retroreflector, perform polarization conversion on the video light by the retroreflector and convert the video light into a video light of another polarization to cause the video light to be reflected by the polarization separation member, and display an air-floating-video as a real image at a side opposite to the LCD panel in a transparent member through which the video light of the specific polarization passes.

An air-floating-video display apparatus includes a Liquid Crystal Display panel, a light source apparatus configured to supply a light in a specific polarization direction to the LCD panel, and a retroreflector that includes a phase difference plate on a retroreflection surface. A polarization separation member is disposed in a space between the LCD panel and the retroreflector. The polarization separation member is configured to once transmit a video light of a specific polarization from the LCD panel to the retroreflector, perform polarization conversion on the video light by the retroreflector and convert the video light into a video light of another polarization to cause the video light to be reflected by the polarization separation member, and display an air-floating-video as a real image at a side opposite to the LCD panel in a transparent member through which the video light of the specific polarization passes.

A virtual reality clamshell computing device includes a number of projection devices to project a three-dimensional image, a number of infrared OR illumination devices to illuminate a users hand, a number of IR sensors to detect IR wavelengths reflected off of the users hand, a processor, and a memory. The memory includes executable code that, when executed by the processor, extracts coordinate location data from the detected IR wavelengths reflected off of the users hand, interprets the coordinate location as a number of gestures performed by the user, and manipulates the display of the three-dimensional image based on the interpreted gestures.

A virtual reality clamshell computing device includes a number of projection devices to project a three-dimensional image, a number of infrared OR illumination devices to illuminate a users hand, a number of IR sensors to detect IR wavelengths reflected off of the users hand, a processor, and a memory. The memory includes executable code that, when executed by the processor, extracts coordinate location data from the detected IR wavelengths reflected off of the users hand, interprets the coordinate location as a number of gestures performed by the user, and manipulates the display of the three-dimensional image based on the interpreted gestures.

Now it is time to extend the capability of Internet to Virtual Existence; make a rapid change to the 3D World, both in real and animation environment; start the new Era of the instant travels; stop the wasted time with many hours of travelling with cars and replace (reduce) the cars with the best alternative: Task-Ins Cubicle. Task-Ins-Cubicle is a round room, equipped with Monitors, Cameras, Speakers, and Microphones inside and outside, equipped inside with a Control Console, Internet Connection, and with possibly seating or laying arrangement. The Local Cubicle communicates with a Remote Cubicle placed anywhere in the world. A person in the Local Cubicle is able to feel everything of the Remote Cubicle. Persons at the Remote Task-Ins Cubicle are able to feel the complete holographic existence of the person from the Local Task-Ins Cubicle. Remote Task-Ins Cubicle can be replaced with a virtual Emulation World, to enable 3D Experience with Games and Imaginary Worlds. It is possible to call the Task-Ins-Cubicle as a Virtual Transportation Machine. Local-Task-Ins-Cubicle allows virtual transportation to a Remote-Task-Ins-Cubicle at any remote place and at the same time allows another to transport itself from another Task-Ins-Cubicle to the Local-Task-Ins-Cubicle. Because Task-Ins-Cubicle does a complete round view of transmission in both directions, the walls of the Task-Ins-Cubicle at the remote site appears transparent so allowing a holographic viewing of the person or things inside. Task-Ins-Cubicle is a complete one solution for several usages at home: Working Office, Own Cinema Hall, Cinema, Concert Hall, Sport Hall, Travelling Vehicle, Meeting Cafe, Shopping Market, Gaming System, Emulation System, Learning School and even classical TV with full holographic viewing, and much more.

Now it is time to extend the capability of Internet to Virtual Existence; make a rapid change to the 3D World, both in real and animation environment; start the new Era of the instant travels; stop the wasted time with many hours of travelling with cars and replace (reduce) the cars with the best alternative: Task-Ins Cubicle. Task-Ins-Cubicle is a round room, equipped with Monitors, Cameras, Speakers, and Microphones inside and outside, equipped inside with a Control Console, Internet Connection, and with possibly seating or laying arrangement. The Local Cubicle communicates with a Remote Cubicle placed anywhere in the world. A person in the Local Cubicle is able to feel everything of the Remote Cubicle. Persons at the Remote Task-Ins Cubicle are able to feel the complete holographic existence of the person from the Local Task-Ins Cubicle. Remote Task-Ins Cubicle can be replaced with a virtual Emulation World, to enable 3D Experience with Games and Imaginary Worlds. It is possible to call the Task-Ins-Cubicle as a Virtual Transportation Machine. Local-Task-Ins-Cubicle allows virtual transportation to a Remote-Task-Ins-Cubicle at any remote place and at the same time allows another to transport itself from another Task-Ins-Cubicle to the Local-Task-Ins-Cubicle. Because Task-Ins-Cubicle does a complete round view of transmission in both directions, the walls of the Task-Ins-Cubicle at the remote site appears transparent so allowing a holographic viewing of the person or things inside. Task-Ins-Cubicle is a complete one solution for several usages at home: Working Office, Own Cinema Hall, Cinema, Concert Hall, Sport Hall, Travelling Vehicle, Meeting Cafe, Shopping Market, Gaming System, Emulation System, Learning School and even classical TV with full holographic viewing, and much more.

A three-dimensional projection apparatus includes a display including a display surface having a plurality of subpixels arranged in a grid along a first direction and a second direction substantially orthogonal to the first direction, an optical element configured to define a light beam direction of an image light emitted from the subpixels for each strip-shaped region of a plurality of strip-shaped regions extending in the second direction on the display surface, an optical member configured to project the image light, the light beam direction of which is defined by the optical element, so that a virtual image of the display surface is formed, and a controller configured to acquire information related to a position of an eye of a subject and to correct, in accordance with the position of the eye, the optical element and an image to be displayed by the display surface.

A three-dimensional projection apparatus includes a display including a display surface having a plurality of subpixels arranged in a grid along a first direction and a second direction substantially orthogonal to the first direction, an optical element configured to define a light beam direction of an image light emitted from the subpixels for each strip-shaped region of a plurality of strip-shaped regions extending in the second direction on the display surface, an optical member configured to project the image light, the light beam direction of which is defined by the optical element, so that a virtual image of the display surface is formed, and a controller configured to acquire information related to a position of an eye of a subject and to correct, in accordance with the position of the eye, the optical element and an image to be displayed by the display surface.