Abstract: A display device arranged to generate a light field to illuminate a human eye. The light field comprising a plurality of pencils that virtually intersect a first reference surface and a second reference surface, said first reference surface being the plane passing through the eye ball sphere center and is perpendicular to the skull frontward direction, and said second reference surface located at a distance from the user's skull and being a portion of a sphere centered the eye hall sphere center. The center of said second reference surface defined as the intersection point of the line passing through the eye ball sphere center and pointing in the skull's frontwards direction. Each pencil is a set of straight lines, segments of said lines coincident with light ray trajectories illuminating the eye having approximately equal luminance and color at any time.

Abstract: A display device including a display panel to generate a real image, and an optical system. The optical system includes a plurality of lenslets, each having one cluster of object pixels, where the assignation of object pixels to clusters may change periodically in time intervals. The cluster emits light towards its corresponding lenslet and the emission is such that no light is sent to neighbor lenslets to avoid cross-talk between channels. Each channel projects a partial virtual image into the eye. The combination of all partial virtual images creates a virtual image. In a preferred embodiment, the partial images of neighbor channels are interlaced, which allows for a higher resolution. Additionally, each channel may be devoted to a single color, avoiding color filters and allowing for a higher efficiency.

Abstract: A display device including a display to generate a real image, and an optical system. The optical system includes a plurality of lenslets, each having one cluster of object pixels, where the assignation of object pixels to clusters may change periodically in time intervals. Each lenslet produces a ray pencil from each object pixel of its cluster which has waists laying close to a waist surface. The ray pencils are projected towards an eye position. The ray pencils are configured to generate a partial virtual image from the real image of its corresponding cluster. At least two of the lenslets cannot be made to coincide by a simple translation rigid motion. Foveal rays are a subset of rays emanating from the lenslets.

Abstract: A display device includes a display operable to generate a real image and an optical system including: a plurality of optical channel bundles, each bundle comprising one or more channels, each channel comprising a lenslet arranged to generate a sub-image from a respective partial real image on the display, Each lenslet is configured to project light from the display to a corresponding eye position among two eye positions. The sub-images combine to form two virtual images so that different optical channel bundles image a same portion of the display to different portions of the virtual images. The optical system is configured to allow light to flow through selected channels and prevent, light from flowing through other selected channels. The system successively opens the optical channel bundles and displays partial real images associated with the channels of the corresponding optical channel bundle.

Abstract: A display device arranged to generate a light field to illuminate a human eye. The light field comprising a plurality of pencils that virtually intersect a first reference surface and a second reference surface, said first reference surface being the plane passing through the eye ball sphere center and is perpendicular to the skull frontward direction, and said second reference surface located at a distance from the user's skull and being a portion of a sphere centered the eye hall sphere center. The center of said second reference surface defined as the intersection point of the line passing through the eye ball sphere center and pointing in the skull's frontwards direction. Each pencil is a set of straight lines, segments of said lines coincident with light ray trajectories illuminating the eye having approximately equal luminance and color at any time.

Abstract: A display device with one or more displays and an optical system with a plurality of channels arranged to generate an immersive virtual image from the a image, the virtual image comprising a plurality of image pixels, by each channel projecting light from the object pixels to a respective pupil range. The object pixels are grouped into clusters, each associated with a channel that produces from the object pixels a partial virtual image comprising image pixels. The clusters of at least two channels are substantially contained in opposite half-spaces defined by a plane passing by the imaginary sphere center. Each of the two channels comprises one surface on which the imaging light rays forming the partial virtual image suffer a last reflection before reaching the pupil range, where each surface is substantially contained in the opposite half-space containing their respective clusters.

Abstract: A display device has a display, operable to generate a real image, and an optical system. In the optical system are at least two free-form reflective surfaces, S I and S2. At least one of the reflective surfaces is convex in one direction at substantially all points of its optically active area. Light rays from the display are reflected on SI before they are reflected on S2. The reflective surfaces SI and S2 are arranged to generate a virtual image from the real image on the display, by projecting light from the display to an eye position. The field of view occupied by the virtual image as seen from the eye position is greater than 50 degrees in at least one direction, preferably the direction linking the two eyes of an intended user.

Abstract: A display device includes a display operable to generate a real image and an optical system including: a plurality of optical channel bundles, each bundle comprising one or more channels, each channel comprising a lenslet arranged to generate a sub-image from a respective partial real image on the display, Each lenslet is configured to project light from the display to a corresponding eye position among two eye positions. The sub-images combine to form two virtual images so that different optical channel bundles image a same portion of the display to different portions of the virtual images. The optical system is configured to allow light to flow through selected channels and prevent, light from flowing through other selected channels. The system successively opens the optical channel bundles and displays partial real images associated with the channels of the corresponding optical channel bundle.

Abstract: A display device has a display, operable to generate a real image, and an optical system with one or more lenslets arranged to generate a virtual sub-image from a respective partial real image on the display, by each lenslet projecting light from the display to an eye position. The sub-images combine to form a virtual image viewable from the eye position. A radial focal length distribution of the optical system decreases with increasing radial angle at radial angles greater than 20° from the frontward direction.

Abstract: A display device has a display, operable to generate a real image, and an optical system, comprising one or more lenslets, arranged to generate a virtual sub-image from a partial real image on the display, by each lenslet projecting light from the display to an eye position. The sub-images combine to form a virtual image viewable from the eye position. At least one lenslet is symmetric with respect to a plane, and the display surface is cylindrical with its axis perpendicular to that plane.

Abstract: A given image is displayed by generating a succession of partial real images, each representing part of the given image and together representing the given image, and at least some of the partial real images occupying overlapping positions. The partial real images are successively imaged to form a sub-image viewable from an eye position. The sub-images combine spatially and temporally to form a virtual image viewable from the eye position so that said overlapping portions of different partial real images form different portions of the virtual image. The partial real images may be displayed on a digital or other display, and imaged by optical channels each using one or more lenslets.

Abstract: A display device has a display to generate a real image. An optical system has lenslets, each generating a virtual sub-image from a respective partial real image on the display, by each lenslet projecting light from the display to an eye position. The sub-images combine to form a virtual image viewable from the eye position. At least one of the lenslets is an “RXIR” lenslet, in which the light rays from the display to the eye position are deflected sequentially at least four times by a refraction (R), a reflection (X), a total internal or metallic reflection (I), and a refraction (R) in that order.

Abstract: A display generates a real image of object pixels, from which an optical system with lenslets generates an immersive virtual image of image pixels, by each lenslet projecting light from the display to a respective pupil range on an imaginary eyeball subtending 15 degrees whole angle at the center of the eyeball. Object pixels are in clusters, each associated with a lenslet that produces from the object pixels a partial virtual image. The partial virtual images combine to form the immersive virtual image. Imaging light rays on the pupil range via a given lenslet come from the associated cluster. Imaging light rays falling on the pupil range from a given cluster pass through the associated lenslet. Imaging light rays exiting a given lenslet towards the pupil range from one image pixel of the immersive virtual image are from a single object pixel of the associated cluster.

Abstract: A luminaire includes a mixing chamber having an array of apertures in one wall, a light source to supply light into the mixing chamber, and an array of optics outside the mixing chamber, each positioned to cooperate with a respective one of the apertures to emit light from the mixing chamber as a beam. The shape, size, and/or direction of the output light beam are controllably varied by controlling the shape, size, and/or position of each aperture relative to its associated optic.

Abstract: An etendue squeezing optic includes light guiding elements that are extruded sideways to guide light to a wide outlet surface for efficient injection into an edge face of a flat light guide such as a backlight panel for a visual display, in combination with a light source optically coupled to the light inlet through an air-gap, so that light entering the optic through the air-gap is confined to a cone of directions determined by a critical angle of refraction into the optic from air at the air-gap.

Abstract: An etendue squeezing optic includes light guiding elements that are extruded sideways to guide light to a wide outlet surface for efficient injection into an edge face of a flat light guide such as a backlight panel for a visual display, in combination with a light source optically coupled to the light inlet through an air-gap, so that light entering the optic through the air-gap is confined to cone of directions determined by a critical angle of refraction into the optic from air at the air-gap.

Abstract: A display device has a display, operable to generate a real image, and an optical system with one or more lenslets arranged to generate a virtual sub-image from a respective partial real image on the display, by each lenslet projecting light from the display to an eye position. The sub-images combine to form a virtual image viewable from the eye position. A radial focal length distribution of the optical system decreases with increasing radial angle at radial angles greater than 20° from the frontward direction.

Abstract: A display device has a display, operable to generate a real image, and an optical system. In the optical system are at least two free-form reflective surfaces, S I and S2. At least one of the reflective surfaces is convex in one direction at substantially all points of its optically active area. Light rays from the display are reflected on SI before they are reflected on S2. The reflective surfaces SI and S2 are arranged to generate a virtual image from the real image on the display, by projecting light from the display to an eye position. The field of view occupied by the virtual image as seen from the eye position is greater than 50 degrees in at least one direction, preferably the direction linking the two eyes of an intended user.

Abstract: A given image is displayed by generating a succession of partial real images, each representing part of the given image and together representing the given image, and at least some of the partial real images occupying overlapping positions. The partial real images are successively imaged to form a sub-image viewable from an eye position. The sub-images combine spatially and temporally to form a virtual image viewable from the eye position so that said overlapping portions of different partial real images form different portions of the virtual image. The partial real images may be displayed on a digital or other display, and imaged by optical channels each using one or more lenslets.

Abstract: A display device has a display to generate a real image. An optical system has lenslets, each generating a virtual sub-image from a respective partial real image on the display, by each lenslet projecting light from the display to an eye position. The sub-images combine to form a virtual image viewable from the eye position. At least one of the lenslets is an “RXIR” lenslet, in which the light rays from the display to the eye position are deflected sequentially at least four times by a refraction (R), a reflection (X), a total internal or metallic reflection (I), and a refraction (R) in that order.