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US 10,502,870 B2Granted
Optical assembly
AssigneeNorth Inc.
InventorsChristophe Le Gros, Jonathan Masson, Lucio Kilcher
Life of this patent
Estimating the term…
Abstract
An optical assembly, and in particular an optical assembly which uses a microlens array or a micromirror array to reduce speckle. It further concerns an optical component which comprises a micromirror array.
Claims6
An optical assembly comprising:
- a microlens array, the microlens array comprising a first surface to receive light and a second surface to emit light;
- a Fresnel lens disposed adjacent to the second surface to optically communicate with the second surface of the microlens array;
- and
- a pin hole array disposed adjacent to the second surface of the microlens array between the microlens array and the Fresnel lens, the pin hole array disposed a distance from the microlens array substantially equal to the focal length of the microlens array.
1 more element
Dependencies are inferred from the claim text.