The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first optical element and a second optical element arranged successively in an incident direction of an optical axis of human eyes, and a first lens group located on an optical axis of a miniature image displayer. The first optical element is used for transmitting and reflecting an image light from the miniature image displayer. The second optical element includes an optical reflection surface. The first optical element reflects the image light refracted by the first lens group to the second optical element, and then transmits the image light reflected by the second optical element to the human eyes.

The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display apparatus. The system includes: a first lens group, and a first optical element and a second lens group for transmitting and reflecting a light from a miniature image displayer. The second lens group includes an optical reflection surface, and the optical reflection surface is an optical surface farthest from a human eye viewing side in the second lens group. The optical reflection surface is concave to a human eye viewing direction. The first optical element reflects the light refracted by the first lens group to the second lens group, and then transmits the light refracted, reflected, and refracted by the second lens group to the human eye.

The present technology provides a display device capable of appropriately displaying information in a visual field range of a user. The present technology provides a display device including: a display system configured to display information in a visual field range of a user by irradiating a retina of an eyeball with light using an element integrally provided on the eyeball of the user; a detection system configured to detect a change in an orientation and/or a position of the eyeball; and a control system configured to control a display position and/or a display mode of the information in the visual field range on the basis of a detection result in the detection system. According to the present technology, it is possible to provide a display device capable of appropriately displaying information in a visual field range of a user.

A head-mounted computing device having a convertible waveguide optical engine assembly is disclosed. The waveguide in accordance with aspects herein can be utilized in its transparent configuration, or may be provided with means for blocking light from passing through it either by using mechanical means, or by using different types of treatments that can switch the waveguide between opaque an transparent states based on an external stimulus, such as, for example, electricity, temperature, light, and the like. Further, the waveguide optical engine assembly comprises a compact footprint, which is advantageous for head-mounted computing devices. In addition to the compact footprint of the waveguide optical assembly, the configuration of the waveguide optical assembly, as disclosed, allows for maximization of advantages provided by the waveguide as related to eye box and eye relief.

The present invention relates to a reflective eyepiece optical system and a head-mounted near-to-eye display device. The system includes: a first lens group, and a first optical element and a second lens group for transmitting and reflecting a light from a miniature image displayer; the second lens group includes one optical reflection surface which is an optical surface farthest from a human eye viewing side in the second lens group; the optical reflection surface is concave to a human eye viewing direction; the first optical element reflects the light refracted by the first lens group to the second lens group, and then transmits the light refracted, reflected and then refracted by the second lens group to human eyes; and the focal length combination among respective lenses is negative, positive and positive.

Methods and apparatus provide for generating an image by way of acquiring information relating to at least one of a position and a rotation of a camera operated by a user. The image is generated for display on a display unit viewed by the user. A rate at which the image is generated is at a first frequency, which is lower than a second frequency corresponding to a frame rate of the display unit.

A wide field of view display device employs curved optical components for enhanced performance with a compact arrangement. A wide field of view display includes a curved display device; a first curved lens having a display side and an exit side, wherein the display side is facing the curved display device; a first plurality of Fresnel facets disposed on the display side of the first curved lens; a second curved lens having a display side and an exit side, wherein the display side is facing the exit side of the first curved lens; and a second plurality of Fresnel facets disposed on the display side of the second curved lens, wherein the first plurality of Fresnel facets is configured to focus light from the curved display device on the second plurality of Fresnel facets, and wherein the second plurality of Fresnel facets is configured to focus light from the first plurality of Fresnel facets on a central image point.

The invention relates to a head-up display (1) with a side image generator (2), particularly for motor vehicle. Said head-up display comprises:—an image generator (2) configured to display an image along a display axis (7);—a semi-reflective optical element (3) arranged space apart from the image generator (2) and configured o display a virtual image along a projection axis (9); and—at least one mirror (4) arranged on the display axis (7) so as to reflect the image from the image generator (2) towards the optical element (3) along a reflection axis (8). The display axis (7) of the image generator (2) is perpendicular to the projection axis (9) of the optical element.

A display system is disclosed for use in an augmented reality display (30), the system comprises a waveguide (32) having a front surface and a rear surface. A front input projector (34) projects polychromatic light through a front surface, and a back input projector (36) projects polychro matic light through the rear surface. Input light impinges on an input grating (38) on a rear surface of the waveguide (32), and light travels through the waveguide by total internal reflection. An output grating (40) is provided for coupling light out of the waveguide. A plurality of front and back input projectors (34, 36) are provided in a staggered configuration along the width of the waveguide (32) and respective edges of adjacent front and back input projectors are aligned along the width of the waveguide to permit a continuous projection of light.

A head-mounted imaging apparatus has a projector that is energizable to project image-bearing light and a light-conditioning element that directs and shapes the image-bearing light from the projector to form a real image plane. A lenslet array is positioned adjacent to the real image plane and optically disposed at substantially one focal length away from a curved mirror, wherein the surface of the curved mirror is substantially spherical. There is a beamsplitter in the path of light from the real image at the lenslet array and disposed to direct at least a portion of the light from the real image toward the curved mirror. The curved mirror directs light from the beamsplitter to form a virtual image for an observer who wears the head-mounted imaging apparatus.