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US 2023/0408741 A1Published application
Optical angular filter
AssigneeIsorg
InventorsFabien GEOFFRAY, Anthony BARBOT
Life of this patent
Estimating the term…
Abstract
An optical angular filter includes a network of pillars made of a first transparent material, and an array of walls made of a second opaque material, separating the pillars from one another. The refraction index of the second material is different from that of the first material.
Claims19
An optical angular filter comprising:
- an array of pillars made of a first transparent material;
- an array of walls made of a second opaque material separating the pillars from one another, a ratio between refraction indexes of the first and second materials depending on a wavelength.
7-10. (canceled)
Dependencies are inferred from the claim text.