H04N9/3129

Beam scanning engine and display system with multiple beam scanners

A display system includes a display screen, a light source to generate a light beam to be modulated in accordance with image data, and a beam scanning module to receive the light beams and to direct the light beam onto an associated display region of the display screen. The beam scanning module includes a resonant scanning mirror configured to scan the light beam along a first scanning direction across the associated display region, and a polygon scanning mirror to scan the light beam along a second scanning direction across the associated display region.

OPTICAL SYSTEM FOR A VIRTUAL RETINAL SCAN DISPLAY, DATA GLASSES AND METHOD FOR PROJECTING IMAGE CONTENTS ONTO THE RETINA OF A USER
20220400236 · 2022-12-15 · ·

An optical system for a virtual retinal scan display. The optical system includes: a projector unit including a modulatable light source for generating at least one modulated light beam and including a movable deflection device for the light beam, a scanning projection of an image content being generatable from the at least one light beam as a result of the movement of the movable deflection device; a diverting unit, onto which the image content is projectable and which is configured to map the projected image content into an exit pupil and to guide it onto an eye of a user; an optical exit pupil shifting unit situated in an optical path of the light beam for spatially shifting the exit pupil of an eye box of the optical system in directions which extend at least essentially in parallel to an exit pupil plane of the exit pupil.

Dynamic Optical Projection With Wearable Multimedia Devices
20220400235 · 2022-12-15 ·

Systems, methods, devices and non-transitory, computer-readable storage mediums are disclosed for a wearable multimedia device and cloud computing platform with an application ecosystem for processing multimedia data captured by the wearable multimedia device. In an embodiment, a computer-implemented method using the wearable multimedia device includes: determining a three-dimensional (3D) map of a projection surface based on sensor data of at least one sensor of the wearable multimedia device; in response to determining the 3D map of the projection surface, determining a distortion associated with a virtual object to be projected by an optical projection system on the projection surface; adjusting, based on the determined distortion, at least one of (i) one or more characteristics of the virtual object to be projected, or (ii) the optical projection system; and projecting, using the optical projection system and based on a result of the adjusting, the virtual object on the projection surface.

Method and apparatus for compensating projection images

The projection image compensating method according to an embodiment of the present disclosure includes acquiring mesh data, at least one representative image, at least one supplementary image, and position information which is information about an obtaining pose of each image for an indoor space; adding an index of each of the plurality of faces to a matrix corresponding to a size of the at least one representative image in accordance with a result of projecting the plurality of faces which configures the mesh data to the at least one representative image; detecting at least one occluded face among the plurality of faces, using an index added to the matrix; and extracting pixel information which is information of a pixel value corresponding to the at least one occluded face from the at least one supplementary image.

Systems and methods for light projection

A light projection system includes a base, a lens, and a set of flexures flexibly attaching the lens to the base. The light projection system further includes a board fixedly attached to the base, and a light source mounted on the board and spaced apart from the lens along an optical axis of the lens. The light source is configured to emit a light beam to be projected by the lens toward a scene. The light projection system further includes a driving mechanism configured to scan the lens via the set of flexures in a plane substantially perpendicular to the optical axis of the lens, thereby scanning the light beam emitted by the light source over the scene.

LASER-ILLUMINATED DISPLAYS WITH ENHANCED UNIFORMITY AND/OR EYE SAFETY
20220373807 · 2022-11-24 ·

A display for displaying an image to a viewer includes an image generator having an illumination subsystem generating illumination of at least a first color, the image generator employing the illumination to generate an image. Projection optics projects illumination from the image for display to the viewer. The illumination subsystem includes a first laser generating a first laser beam of the first color with a first polarization and a second laser generating a second laser beam of the first color with a second polarization. The first and second polarizations are orthogonal at at least one location within the projection optics, thereby projecting a quasi-unpolarized image.

Pulse shaping to reduce pulse history effects in pulsed lasers

Technologies pertaining to accounting for pulse history effects are described herein. In connection with accounting for pulse history effects, an amount of time between a first current pulse and a second current pulse that are to be transmitted to a pulsed laser is determined. Based upon such an amount of time, a determination is made as to whether a porch pulse is to be prepended to the second current pulse. When the porch pulse is to be prepended to the second current pulse, an amplitude and duration of the porch pulse are computed based upon the amount of time. The porch pulse is transmitted to the pulsed laser immediately followed by the second current pulse, wherein the porch pulse pre-charges the pulsed laser for emitting a pulse of light based upon the second current pulse.

IMAGE DISPLAY APPARATUS

There is provided an image display apparatus that enables an intuitive operation even when a detection target is not able to be inserted into a first space in which a three-dimensional object is visually recognized. A position of a detection target is detected, and a display position of a pointer displayed by a display unit is moved on a basis of a position of the detection target that exists within a second space not overlapping the first space which is a space in which the three-dimensional object is displayed among the position of the detected detection target.

PROJECTION DEVICE AND METHOD OF CONTROLLING PROJECTION DEVICE
20230102935 · 2023-03-30 · ·

A projection device according to the present disclosure includes a light emission display panel in which a plurality of pixels including a light emission element are arranged in a matrix shape, a scanning mirror configured to reflect, toward a scanned surface, imaging light emitted from the light emission display panel and performs two-dimensional scanning of the reflected imaging light on the scanned surface, and a projection optical system configured to guide the imaging light from the light emission display panel to the scanning mirror.

DISPLAY DEVICE
20230029822 · 2023-02-02 · ·

A display device of the present disclosure includes an image display device and a control unit, in which the image display device includes an image formation device, and an optical device that displays an image emitted from the image formation device in front of an observer while superimposing the image on a real image of an outside world, the control unit controls an operation of the image formation device, and in a case where a black display edge that is an edge of an area where black is displayed exists in the image, the control unit performs reversing processing and luminance increasing processing of the black display edge.