Compact near-eye display optics for higher optical performance
Systems and apparatus are described for a head-mounted display apparatus comprising at least one optical assembly. Each optical assembly may include a first curved lens including a first surface and a second surface, a second curved lens including a third surface and a fourth surface, the third surface being concave and including a beam splitter layer, the second curved lens being disposed between the first curved lens and an input filter assembly, and a display panel adapted to receive image content from an image projecting device and transmit the image content through the at least one optical assembly. The third surface of the second curved lens may have a radius of curvature that is larger than a radius of curvature of the second surface of the first curved lens.
1. A system comprising:
an interactive head-mounted display device adapted to house an image projecting device;
at least one processor for providing image content within the head-mounted display device; and
an optical assembly, the optical assembly including, for a first eyepiece and a second eyepiece:
a first curved lens including a first concave surface and a first convex surface, the first concave surface coupled to a flexible output filter assembly;
a second curved lens adjacent to the first curved lens, the second curved lens including a second convex surface and a flat surface;
a third curved lens, adjacent to the second curved lens, the third curved lens including a second concave surface and a third convex surface, the third curved lens being adjacent to an input filter assembly; and
a display panel adapted to receive image content from the image projecting device and transmit the image content through the optical assembly.
2. The system of claim 1 , wherein the second curved lens is a plano convex lens, the second curved lens adapted to correct a field of curvature to increase a field of view for the optical assembly.
3. The system of claim 1 , wherein the input filter assembly is flexible and laminated to the second concave surface of the third curved lens.
4. The system of claim 1 , wherein the display panel, the image projecting device, the second curved lens, and the third curved lens are adapted to be tilted:
laterally to an angle from a perpendicular to an optical axis of the first curved lens, and
longitudinally to an acute angle from the perpendicular of the optical axis of the first curved lens.
5. The system of claim 1 , wherein:
the first curved lens is a shell lens,
the second curved lens is a biconvex lens,
the third curved lens is a shell lens with a beam splitter coating, and
wherein the output filter assembly is adhered to the first concave surface of the first curved lens and the input filter assembly is adhered to the third convex surface of the third curved lens.
6. The system of claim 1 , wherein the second lens and the third lens are configured to slide laterally relative to a bottom plane of a frame housing the head-mounted display device, the slide triggering a diopter adjustment to correct a visual impairment associated with a user accessing the head-mounted display device.