Disclosed are methods and systems for displaying images, and for implementing volumetric user interfaces. One exemplary embodiment provides a system comprising: a light source; an image producing unit, which produces an image upon interaction with light approaching the image producing unit from the light source; an eyepiece; and a mirror, directing light from the image to a surface of the eyepiece, wherein the surface has a shape of a solid of revolution formed by revolving a planar curve at least 180 around an axis of revolution.

Methods, apparatus, devices, and systems for displaying three-dimensional objects by individually diffracting different colors of light are provided. In one aspect, an optical device includes: a first optically diffractive component including a first diffractive structure configured to diffract a first color of light having a first incident angle at a first diffracted angle, a second optically diffractive component including a second diffractive structure configured to diffract a second color of light having a second incident angle at a second diffracted angle, a first reflective layer configured to totally reflect the first color of light having the first incident angle and transmit the second color of light, and a second reflective layer configured to totally reflect the second color of light having the second incident angle. The first reflective layer is between the first and second diffractive structures, and the second diffractive structure is between the first and second reflective layers.

An imaging module of a projection device generates a multi-color image such that a first color sub-image with a first wavelength and a second color sub-image with a second wavelength are generated. Deflection efficiency curves for a specified angular range about a specified viewing angle are set such that a first efficiency ratio for the specified angular range is constant. The imaging module is actuated such that when the multi-color image is generated, a first brightness ratio of the brightness of the first color sub-image to the brightness of the second color sub-image is inversely proportional to the a efficiency ratio such that different deflection efficiency curves are compensated for and such that the viewer can perceive the multi-color image as a true-color virtual image at viewing angles from the specified angular range.

Provided is a multi-image display apparatus including a light source configured to emit light, a spatial light modulator configured to provide a first image by modulating the light emitted from the light source, and an optical system configured to transmit the first image provided by the spatial light modulator to a viewer, wherein the optical system is configured such that a travelling path of the first image provided by the spatial light modulator includes a first optical path in a first direction, a second optical path in a second direction orthogonal to the first direction, and a third optical path in a third direction orthogonal to the first direction and the second direction, respectively, and wherein the optical system is configured such that the first image and a second image provided from an optical path different from the travelling path of the first image are provided to the viewer.

A method for an end-user to perform in-situ calibration of the imagery of a head-up display in a vehicle. A first step comprises obtaining information on the real-world scene within a field of view of the head-up display from a vehicle sensor system of the vehicle. A second step comprises using the information obtained from the vehicle sensor system to identify at least one feature in the field of view satisfying a suitability criterion for the head-up display calibration mode. A third step comprises projecting an image using the head-up display. The image comprises an image element corresponding to each feature. A fourth step comprises receiving at least one first user-input and changing the image in response to each first user-input.

A three-dimensional image simulation device for managing a live event comprising an image capturing device for capturing live captured data corresponding to a presenter and generating, in real-time, hologram data based on the live captured data. An output interface for broadcasting the hologram data in real-time to at least one additional location containing an audience, wherein the hologram data is used to create a hologram of the presenter at the at least one additional location based on an apparent parallax effect in a simulated three-dimensional display device, the hologram creating a three-dimensional illusion for the audience regarding actual presence of the presenter at the at least one additional location. Furthermore, an input interface for receiving audience data from the at least one additional location regarding interaction between the hologram and the audience and a display device for displaying images based on audience data to the presenter.

Disclosed are a method and corresponding apparatus to enable a user of a display system to manipulate holographic objects. Multiple holographic user interface objects capable of being independently manipulated by a user are displayed to the user, overlaid on a real-world view of a 3D physical space in which the user is located. In response to a first user action, the holographic user interface objects are made to appear to be combined into a holographic container object that appears at a first location in the 3D physical space. In response to the first user action or a second user action, the holographic container object is made to appear to relocate to a second location in the 3D physical space. The holographic user interface objects are then made to appear to deploy from the holographic container object when the holographic container object appears to be located at the second location.

Disclosed are methods and systems for displaying images, and for implementing volumetric user interfaces. One exemplary embodiment provides a system comprising: a light source; an image producing unit, which produces an image upon interaction with light approaching the image producing unit from the light source; an eyepiece; and a mirror, directing light from the image to a surface of the eyepiece, wherein the surface has a shape of a solid of revolution formed by revolving a planar curve at least 180 around an axis of revolution.

Implementations of various computer methods to couple a computerized ball device which acts as a mobile computing device to record the users environment and project light towards waveguide eyeglasses or contacts which then allows a user to view imbedded light structure holograms in the waveguide while viewing the actual world. The computer ball device additionally has the ability to be docked in a drone cradle which creates a database map of the user's environment while not being utilized by the user for an immediate task. The device may also attach to a wrist band for mobility. The device also has the ability to couple the projected light structures so that a plurality of users may view the same light structure content to build an environment of trust. The device decouples the traditional design of head mounted virtual and mixed reality that place together the camera with the head mounted device.

There is provided a method of projection using an optical element having spatially variant optical power. The method comprises combining Fourier domain data representative of a 2D image with Fourier domain data having a first lensing effect to produce first holographic data. Light is spatially modulated with the first holographic data to form a first spatially modulated light beam. The first spatially modulated light beam is redirected using the optical element by illuminating a first region of the optical element with the first spatially modulated beam. The first lensing effect compensates for the optical power of the optical element in the first region.