Optical device, system and method
AssigneeMems Optical, Inc.
InventorDavid R. Brown
Life of this patent
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Abstract
An optical device is formed of an array of micro-wedges where each micro-wedge is different in size and shape from adjacent micro-wedges. Each micro-wedge of the array directs light in a predetermined direction toward a particular sub-region of an angular pattern. The positions of the micro-wedges in the device may be essentially random with respect to the corresponding positions of the sub-regions. The device causes the output light to fill a large angular spread with homogenized light with clear boundaries and edges. The device employs refraction or reflection, and the device operates efficiently over a broad wavelength band.
Claims7
A method of making an optical device, said method comprising the steps of:
- dividing an angular pattern into a plurality of sub-angular regions;
- determining micro-wedge configurations for directing light to said sub-angular regions;
- and
- subsequently, generating an array of micro-wedges according to said micro-wedge configurations, such that adjacent micro-wedges in said array have different configurations.
Dependencies are inferred from the claim text.