Loading patent…
Assignee3M Innovative Properties Company
InventorsJohn D. Le, Timothy L. Wong, Michael L. Steiner, David J. W. Aastuen, Kayla A. McGrath, Matthew C. Dachel
Estimating the term…
An optical system includes a display, at least one lens, and at least one of a partial reflector and a reflective polarizer. The optical system forms a virtual image of an image emitted by the display for viewing by an eye. The emitted image includes a plurality of cones of image light. Each cone of image light propagates from a different corresponding location on the emitted image and includes a central light ray propagating along a central axis, such that in each of orthogonal first and second planes that include the central axis, an intensity distribution of the cone of image light as a function of angle relative to the central axis includes a substantially flat peak having a full width of at least 15 degrees across which the peak changes by less than about 20%, and a corresponding fullwidth at half maximum that is less than about 60 degrees.
An optical system comprising a display, at least one lens, and at least one of a partial reflector and a reflective polarizer, the optical system forming a virtual image of an image emitted by the display for viewing by an eye, the emitted image comprising a plurality of cones of image light, each cone of image light propagating from a different corresponding location on the emitted image and comprising a central light ray propagating along a central axis, such that in each of orthogonal first and second planes that comprise the central axis, an intensity distribution of the cone of image light as a function of angle relative to the central axis comprises a substantially flat peak having a full width of at least 15 degrees across which the peak changes by less than about 20%, and a corresponding fullwidth at half maximum that is less than about 60 degrees.
An optical system substantially centered on an optical system axis and comprising a display system, at least one lens, a reflective polarizer, and an eye box, the eye box comprising a center disposed on the optical system axis, the display system configured to generate a pixelated image comprising a plurality of image pixels, the optical system configured to display a virtual image of the generated pixelated image to an eye of a viewer disposed in the eye box, such that a first image pixel of the pixelated image farthest from the optical system axis emits a first cone of image light that after passing through the at least one lens and the reflective polarizer, enters the eye box and crosses the optical system axis in the eye box at or near a peak intensity of the first cone of image light.
Dependencies are inferred from the claim text.