A near-eye display device comprises a pupil-expansion optic, first and second lasers, a drive circuit coupled operatively to the first and second lasers, a beam combiner, a spatial light modulator (SLM), and a computer. The first and second lasers are configured to emit in respective first and second wavelength bands. The beam combiner is configured to geometrically combine emission from the first and second lasers into a collimated beam. The SLM is configured to receive the collimated beam and to direct the emission in spatially modulated form to the pupil-expansion optic. The computer is configured to parse a digital image, trigger the emission from the first and second lasers by causing the drive circuit to drive current through the first and second lasers, and control the SLM such that the spatially modulated form of the emission projects an optical image corresponding to the digital image.

A near-eye display device comprises a pupil-expansion optic, first and second lasers, a drive circuit coupled operatively to the first and second lasers, a beam combiner, a spatial light modulator (SLM), and a computer. The first and second lasers are configured to emit in respective first and second wavelength bands. The beam combiner is configured to geometrically combine emission from the first and second lasers into a collimated beam. The SLM is configured to receive the collimated beam and to direct the emission in spatially modulated form to the pupil-expansion optic. The computer is configured to parse a digital image, trigger the emission from the first and second lasers by causing the drive circuit to drive current through the first and second lasers, and control the SLM such that the spatially modulated form of the emission projects an optical image corresponding to the digital image.

A virtual reality head mounted display includes a first display, a first lens, a second lens, a beam splitter coating and a second display. The first display generates a first display image beam on an active surface. The first lens has a first surface facing the active surface of the first display and a second surface opposite to the first surface. The second lens has a third surface and an opposite fourth surface. The beam splitter coating is disposed between the second surface of the first lens and the third surface of the second lens. The third surface of the second lens is attached to the second surface of the first lens through the beam splitter coating. The second display has an active surface facing the fourth surface of the second lens. The second display generates a second display image beam on the active surface.

An optical arrangement converts an input laser beam into a line-like output beam, which propagates along a propagation direction and which has, in a working plane, a line-like beam cross section extending along a line direction. The optical system includes: a reshaping optical unit having an input aperture, through which the input laser beam is radiated, and an elongate output aperture, elongatedly extending along an aperture longitudinal direction, the reshaping optical unit converting the input laser beam radiated through the input aperture into a beam packet exiting through the output aperture; and a homogenization optical unit which converts the beam packet into the line-like output beam, different beam segments of the beam packet being intermixed and superimposed along the line direction. The aperture longitudinal direction extends in a manner rotated about the propagation direction by a non-vanishing angle of rotation with respect to the line direction.

Disclosed herein is an optical device for augmented reality having improved light efficiency. The optical device includes: a reflective means configured to transfer augmented reality image light to the pupil of a user by reflecting the augmented reality image light toward the pupil; and an optical means adapted such that the reflective means is embedded and disposed therein, and configured to transmit at least part of real object image light therethrough toward the pupil of the user. The optical means includes a first surface and a second surface. The reflective means includes a plurality of reflective units having a size of 4 mm or less that are embedded and arranged inside the optical means. At least two reflective units of the plurality of reflective units are arranged closer to the second surface of the optical means as the distance from the image output unit increases.

A power bank and holographic projection accessory intended for use with a portable electronic device. The accessory includes a holographic projection unit and an external power bank case attachable to the holographic projection unit. The external power bank case is configured to provide power to the holographic projection unit and to provide a video signal generated by the portable electronic device to the holographic projection unit. The holographic projection unit generates volumetric projections based upon the video signal.

A holographic display system including an electronic device, a camera and a holographic projection unit. The holographic projection unit is configured to generate a volumetric projection for viewing by a user in response to a rendering signal provided by a volumetric display application executing on the electronic device. The holographic projection unit includes a housing, a projector at least partially disposed within the housing and operative to display images based upon the rendering information, and a semi-reflective element being oriented to reflect light from the images in order to create the volumetric projection. The camera is oriented such that the user is within a field of view, the camera being operative to provide the image information to the volumetric display application for determination of a position of the user. The volumetric projection is adapted in response to the position of the user.

A head mounted display including a first display, a second display, a third display, and an optical element is provided. The first display projects a first image to a first target area. The second display projects a second image to a second target area. The third display projects a third image. The optical element is disposed among the first target area, the second target area, the first display, the second display, and the third display. The optical element transmits the first image to the first target area and the second image to the second target area, and reflects the third image toward the first target area and the second target area.

There is disclosed an optical device, including a light-transmitting substrate having an input aperture, an output aperture, at least two major surfaces and edges, an optical element for coupling light waves into the substrate by total internal reflection, at least one partially reflecting surface located between the two major surfaces of the light-transmitting substrate for partially reflecting light waves out of the substrate, a first transparent plate, having at least two major surfaces, one of the major surfaces of the transparent plate being optically attached to a major surface of the light-transmitting substrate defining an interface plane, and a beam-splitting coating applied at the interface plane between the substrate and the transparent plate, wherein light waves coupled inside the light-transmitting substrate are partially reflected from the interface plane and partially pass therethrough.

The present disclosure relates to a light source apparatus including a laser light source that outputs a laser beam and a collimator system that parallelizes the laser beam. The collimator system includes three lens groups. A first group includes a first anamorphic lens having negative power in a first direction. A second group includes a second anamorphic lens having positive power in a second direction perpendicular to the first direction. A third group includes a third anamorphic lens having positive power in the first direction.