Meta patents crystal lenses to fix blurry edges in headsets
Meta describes a lens made from a specific type of organic crystal that bends light in different directions depending on the angle. The lens is shaped with a curved, stepped surface to correct distortions caused by this uneven light bending, resulting in a clearer image.
In the filing’s own words
A Fresnel lens includes a lens body having a structured surface with a plurality of facets, where the lens body includes an organic solid crystal having mutually-orthogonal refractive indices, n x, n y, n z. In a related vein, an apparatus includes a display and an optical configuration configured to receive display light from the display, where (a) the optical configuration includes a Fresnel lens assembly having a Fresnel lens and a Pancharatnam-Berry Phase lens overlying the Fresnel lens, (b) the Fresnel lens includes a lens body having a structured surface including a plurality of facets, and (c) the lens body includes an organic solid crystal.
What exactly they claim (claim 1)
1. A Fresnel lens comprising: a lens body comprising an organic solid crystal having mutually-orthogonal refractive indices, n x, n y, n z; and the lens body having a bi-conic architecture and a structured surface comprising a plurality of facets, wherein the lens body is configured to reduce geometric aberrations arising from birefringence of the organic solid crystal.
Facts
- Company
- Meta (Meta Platforms Technologies, LLC)
- Official title
- Fresnel lens with organic solid crystals
- Patent number
- US12769035B2
- Application number
- 18192986
- Filed
- Mar 30, 2023
- Granted
- Oct 20, 2026
- Inventors
- 5
- Claims
- 20
Classified under
G02B 3/08 Physics & computingG02B 1/02 Physics & computingG02B 1/041 Physics & computingG02B 2003/0093 Physics & computingG02B 27/0172 Physics & computingMore from Meta in AR, VR & displays
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.