Magnified optical display assembly
AssigneeLumileds LLC
InventorHisashi Masui
Life of this patent
Estimating the term…
Abstract
A wearable optical display assembly includes an array of light-emitting elements arranged as a display device, and one or more optical elements arranged as a magnification system. The array is positioned at a predetermined viewing distance from an eye of a user wearing the optical display assembly. The array has an unmagnified element spacing; the magnification system forms a magnified image of the array that can be seen by the user with a magnified element spacing larger than the unmagnified element spacing. The magnified element spacing is no smaller than spatial resolution of at least a portion of the eye of the user at the predetermined viewing distance. In some instances, the magnified element spacing can subtend an angle no smaller than 1 arcminute at the predetermined viewing distance.
Claims17
A wearable optical display assembly comprising:
- an array of light-emitting elements arranged as a display device, the array being characterized by an unmagnified element spacing of the light-emitting elements of the array, the optical display assembly being structurally arranged so as to position the array at a predetermined viewing distance from an eye of a user wearing the optical display assembly;
- and
- one or more optical elements arranged as a magnification system, the magnification system being positioned and arranged so as to form a magnified image of the array that can be seen by the user, the magnified image being characterized by a magnified element spacing of the light-emitting elements of the array that is larger than the unmagnified element spacing, the magnified element spacing being no smaller than spatial resolution of at least a portion of the eye of the user at the predetermined viewing distance,
- wherein either (i) the predetermined viewing distance is 2 cm and the magnified element spacing is no smaller than 4 microns, or (ii) the predetermined viewing distance is 10 cm and the magnified element spacing is no smaller than 20 microns.
A wearable optical display assembly comprising:
- an array of light-emitting elements arranged as a display device, the array being characterized by an unmagnified element spacing of the light-emitting elements of the array, the optical display assembly being structurally arranged so as to position the array at a predetermined viewing distance from an eye of a user wearing the optical display assembly;
- and
- one or more optical elements arranged as a magnification system, the magnification system including one or more transparent immersion media in contact with light output surfaces of the light-emitting elements, the magnification system being positioned and arranged so as to form a magnified image of the array that can be seen by the user, the magnified image being characterized by a magnified element spacing of the light-emitting elements of the array that is larger than the unmagnified element spacing, the magnified element spacing being no smaller than spatial resolution of at least a portion of the eye of the user at the predetermined viewing distance.
A wearable optical display assembly comprising:
- an array of light-emitting elements arranged as a display device, the array being characterized by an unmagnified element spacing of the light-emitting elements of the array, the optical display assembly being structurally arranged so as to position the array at a predetermined viewing distance from an eye of a user wearing the optical display assembly;
- and
- one or more optical elements arranged as a magnification system, the magnification system including one or more refractive focusing optical elements and one or more reflective focusing optical elements and being positioned and arranged so as to form a magnified image of the array that can be seen by the user, the magnified image being characterized by a magnified element spacing of the light-emitting elements of the array that is larger than the unmagnified element spacing, the magnified element spacing being no smaller than spatial resolution of at least a portion of the eye of the user at the predetermined viewing distance,
- the one or more refractive focusing optical elements being arranged for collecting paraxial portions of output light from the light-emitting elements, and the one or more reflective focusing optical elements being arranged for collecting off-axis portions of the output light from the light-emitting elements.
Dependencies are inferred from the claim text.