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US 2024/0201495 A1Published application
Apparatus, system, and method for increasing contrast in pancake lenses via asymmetric beam splitters
AssigneeMeta Platforms Technologies, LLC
InventorsAndrew John Ouderkirk, Fenglin Peng, Ying Geng
Life of this patent
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Abstract
A head-mounted display comprising (1) an electronic display configured to emit light and (2) a pancake lens optically coupled to the electronic display, the pancake lens comprising a beam splitter configured to (A) transmit a spatial average fraction of the light and (B) reflect an additional spatial average fraction of the light that is less than the spatial average fraction of the light. Various other apparatuses, devices, systems, and methods are also disclosed.
Claims20
A head-mounted display comprising:
- an electronic display configured to emit light;
- and
- a pancake lens optically coupled to the electronic display, the pancake lens comprising a beam splitter configured to:
- transmit a spatial average fraction of the light;
- and
- reflect an additional spatial average fraction of the light that is less than the spatial average fraction of the light.
3 more elements
An artificial-reality system comprising:
- an electronic display;
- at least one processing device communicatively coupled to the electronic display and configured to direct the electronic display to emit light;
- and
- a pancake lens optically coupled to the electronic display, the pancake lens comprising a beam splitter configured to:
- transmit a spatial average fraction of the light;
- and
- reflect an additional spatial average fraction of the light that is less than the spatial average fraction of the light.
4 more elements
A method comprising:
- installing an electronic display into a head-mounted system;
- assembling a pancake lens that comprises a beam splitter;
- and
- optically coupling the pancake lens to the electronic display in the head-mounted system such that the beam splitter is configured to:
- transmit a spatial average fraction of light emitted by the electronic display;
- and
- reflect an additional spatial average fraction of the light that is less than the spatial average fraction of the light.
4 more elements
Dependencies are inferred from the claim text.