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US 2026/0206402 A1Published application
Patterned sapphire substrate with integrated photonic layer
AssigneeLumileds LLC
InventorAntonio Lopez Julia
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Abstract
Discussed herein are devices, systems, and methods for sapphire substrate lighting devices with improved luminance. A segmented lighting apparatus includes a sapphire substrate, a patterned low refractive index material on the sapphire substrate, a photonic layer on the patterned low refractive index material, and a light-generating material on the photonic layer.
Claims20
A segmented lighting apparatus comprising:
- a sapphire substrate;
- a patterned low refractive index material on the sapphire substrate;
- a photonic layer on the patterned low refractive index material;
- and
- a light-generating material on the photonic layer.
2 more elements
A segmented lighting apparatus comprising:
- a sapphire substrate;
- silicon dioxide features formed on the sapphire substrate;
- niobium pentoxide or titanium dioxide covering exposed portions of the silicon dioxide features;
- second silicon dioxide formed on the niobium pentoxide or titanium dioxide;
- and
- gallium nitride grown on the second silicon dioxide.
3 more elements
A method of making a segmented lighting apparatus, the method comprising:
- forming silicon dioxide features on a sapphire substrate;
- situating niobium pentoxide or titanium dioxide on exposed portions of the silicon dioxide features;
- situating second silicon dioxide on the niobium pentoxide or titanium dioxide;
- and
- growing gallium nitride on the second silicon dioxide.
2 more elements
Dependencies are inferred from the claim text.