Patent ID: 11921302
Assignee: nan
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A display device comprising optics, the display device arranged to generate a light field to illuminate a human eye, having a coordinate system fixed to a user's skull, 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 a plane passing through an eye ball sphere center and perpendicular to a 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 at the eye ball sphere center, a center of said second reference surface being defined as an intersection point of a line passing through the eye ball sphere center and pointing in the skull frontward direction,
wherein each said pencil is a set of straight lines, segments of said straight lines coincident with light ray trajectories illuminating the eye having an approximately equal luminance and color at any time,
wherein each said ray is determined by a point pair formed by virtual points of intersection of the ray with the first and second reference surfaces, and
wherein a pencil density is higher at a point pair formed by the eye ball sphere center and a center of the second reference surface than in at least a region away from that point pair, said pencil density at a point pair, a first point of said pair contained in the first reference surface and a second point of said pair contained in the second reference surface, said pencil density defined as a number of pencils that contain rays passing through two small disks centered at said pair and said disks tangent to their respective reference surfaces, divided by a phase space volume defined by the rays intersecting those two disks.