Walk the independent claim. Magic Leap's grant US11256093B2, "Waveguide illuminator" (issued February 22, 2022; a multi-inventor filing), is a granted patent. Its CPC anchor G02B 27/0172 is the head-mounted-display optics class — not a software class — and the surrounding light-guide classes confirm this is core display-optics art.
The element that does the work is the illuminator-to-waveguide coupling. An AR waveguide carries an image across the lens and releases it toward the eye; how light is injected into that waveguide governs brightness, efficiency, and uniformity. The claim's contribution is the illuminator structure that performs this coupling, which is among the hardest and most defensible problems in AR optics.
What it reads on is the see-through display engine of an AR headset — the optics that overlay digital imagery on the real world. Magic Leap built its entire identity on waveguide optics, and this grant protects a piece of the light path that any competing waveguide-based headset must also solve.
Scope discipline: G02B 27/0172 covers a great deal of HMD optics, but the claim does not own the class. It protects the recited illuminator structure. A headset using a fundamentally different display architecture — birdbath optics, or laser-beam scanning without this illuminator structure — may not read on it. The defensible element is the specific coupling design.
Granted status makes US11256093B2 a real obstacle in AR optics, a space where the patent thicket is dense and the players — Magic Leap, Meta, Microsoft, Apple, Snap — are well-funded and litigious. For anyone designing a waveguide illuminator, this grant is prior art and a potential block in one document.
For a strategist, the location of the claim is the signal: in the light path, not the app layer. The expensive, defensible work in AR is optical, and Magic Leap's portfolio — this grant included — is concentrated exactly where the moat is deepest.