Back to results
US 12,754,423 B2Granted
High-contrast pancake lens with pass-polarization absorber
AssigneeMeta Platforms Technologies, LLC
InventorsAndrew John Ouderkirk, Fenglin Peng, Ying Geng, Brian Wheelwright
Life of this patent
Estimating the term…
Abstract
A device may include an optical system that creates an image to a user and a light-absorbing element that absorbs a portion of the light transmitted by the optical system. The optical system may include a beamsplitting element and a reflective polarizer that reflects a first handedness of circularly polarized light and transmits a second handedness of polarized light. Various other devices, systems, and methods of manufacture are also disclosed.
Claims20
A device comprising:
- an optical system that creates an image to a user, wherein the optical system comprises:
- a beamsplitting element;
- and
- a reflective polarizer that reflects a first handedness of circularly polarized light and transmits a second handedness of polarized light;
- and
- a light-absorbing element absorbs a portion of the light transmitted by the optical system, wherein the light-absorbing element has a higher absorptivity of the light at a center of the light-absorbing element than at 50% of an outer radius of an edge by at least 10%.
3 more elements
A system comprising:
- a display;
- an optical system that creates an image from the display to a user, wherein the optical system comprises:
- a beamsplitting element;
- and
- a reflective polarizer that reflects a first handedness of circularly polarized light and transmits a second handedness of polarized light;
- and
- a light-absorbing element absorbs a portion of the light transmitted by the optical system, wherein the light-absorbing element has a higher absorptivity of the light at a center of the light-absorbing element than at 50% of an outer radius of an edge by at least 10%.
4 more elements
A method of manufacture comprising:
- disposing, between a display and an eye box, an optical system that creates an image from the display to a user, wherein the optical system comprises:
- a beamsplitting element;
- and
- a reflective polarizer that reflects a first handedness of circularly polarized light and transmits a second handedness of polarized light;
- and
- disposing, between the display and the eye box, a light-absorbing element absorbs a portion of the light transmitted by the optical system, wherein the light-absorbing element has a higher absorptivity of the light at a center of the light-absorbing element than at 50% of an outer radius of an edge by at least 10%.
3 more elements
Dependencies are inferred from the claim text.