Today the U.South. Patent and Trademark Office officially granted Apple a patent that relates to a mixed reality headset with a Dynamic Focus 3D Display. While Conventional VR systems project left and correct images onto screens that are viewed by a field of study, Apple new mode uses a direct retinal projector system that scans the images, pixel by pixel, directly onto the subject’south retinas.
Overall, Apple states that their invention covers a directly retinal projector system that provides dynamic focusing for virtual reality (VR) and/or augmented reality (AR). A direct retinal projector arrangement scans images, pixel by pixel, directly onto the subject’south retinas. This allows private pixels to be optically affected dynamically as the images are scanned to the subject’s retinas. Dynamic focusing components and techniques are described that may exist used in a direct retinal projector system to dynamically and correctly focus each pixel in VR images as the images are existence scanned to a subject’s eyes.
This allows objects, surfaces, etc. that are intended to announced at different distances in a scene to be projected to the discipline’southward optics at the right depths.
Further, in a stereoscopic system the images displayed to the user may fox the eye(s) into focusing at a far distance while an image is physically being displayed at a closer altitude. In other words, the eyes may be attempting to focus on a different image plane or focal depth compared to the focal depth of the projected prototype, thereby leading to eyestrain and/or increasing mental stress.
Accommodation-convergence mismatch problems are undesirable and may distract users or otherwise backbite from their enjoyment and endurance levels (i.e. tolerance) of virtual reality or augmented reality environments. Apple’s invention is to overcome this upshot.
Embodiments of dynamic focusing components and techniques for direct retinal projector systems are described that may, for example,resolve the convergence-accommodation conflict in AR and VR systems.
Embodiments of the dynamic focusing components and techniques may be used in a straight retinal projector system to correctly focus each pixel in VR images equally the images are being scanned to a bailiwick’s eyes.
A VR or AR headset organization is described that may include or implement the dynamic focusing components and techniques in a direct retinal projector organisation.
The human brain typically uses ii cues to gauge distance: adaptation (i.east., eye focus) and eye convergence (i.eastward., the stereoscopic perspective difference betwixt the 2 optics). Conventional near-eye VR systems, such as DLP (digital low-cal processing), LCD (liquid crystal display) and LCoS (liquid crystal on silicon) technology VR systems, typically use carve up screens for each corresponding eye to project the images intended for the left eye and the right center, too as optics to allow a user to focus the eyes at a far distance during viewing of the left and right heart images.
To create a 3-dimensional (3D) effect, objects at different depths or distances in the two images are shifted left or right as a function of the triangulation of distance, with nearer objects shifted more than than more distant objects.
While Conventional VR systems project left and right images onto screens that are viewed past a discipline, Apple new way uses a direct retinal projector organisation that scans the images, pixel past pixel, directly onto the subject’s retinas.
This attribute of direct retinal projector systems allows individual pixels to be optically afflicted dynamically as the images are scanned to the field of study’s retinas. The dynamic focusing components and techniques used in Apple’s granted patent may be used in a direct retinal projector system to dynamically and correctly focus each pixel in the VR images as the images are being scanned to a subject field’s eyes.
This allows content (objects, surfaces, etc.) that is intended to appear at different depths in a scene to exist projected to the discipline’southward eyes at the right depths.
Apple tree’southward patent FIG. xiv is a logical block diagram of a frame for a VR/AR device; FIG. xv is a logical block diagram of a device that provides augmented reality (AR) to a bailiwick.
Apple tree has added 20 new patent claims to their original invention that covers “an apparatus” and “A system.” For more than details, review Apple’s granted patent 11,070,785.
Apple’s inventor is Alexander Shpunt, Architect, came to Apple tree afterward the acquisition of State of israel’s PrimeSense that was behind Apple’due south TrueDepth camera. Being the inventor of this invention gives it more brownie and likelihood of it coming to market place.