Diffusers and methods of manufacture
OwnerZhijian Luinventor
Life of this patent
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Abstract
Diffusers including of a plurality of protruded structures with each structure containing multiple rugged facets are disclosed. The diffuser may be fabricated by coating a mixture of materials on a carrier film, the mixture of materials including at least a first material that polymerizes upon irradiation and at least a second material that is incompatible with the first material in polymerized form, then selectively irradiating the mixture of materials to polymerize a portion of the mixture of materials to form polymerized structures, and finally removing that part of the mixture of materials not forming part of the structures. A transparent material may be coated over the structures. The overcoat material may further contain scattering elements such as glass beads or polymeric particles.
Claims17
A diffuser comprising:
- a plurality of light diffusing protruded structures, each of the structures having multiple light exiting facets;
- wherein at least one of the protruded structures has a conical, extruded hexagonal, or extruded octagonal shape, and at least one of the facets thereof has an optically rough, rugged pitted surface;
- wherein the structures are formed of polymerized material and wherein the polymerized material is a photopolymerized material.
A method of forming a diffuser comprising:
- forming a plurality of light diffusing protruded structures, at least one of which has a conical, extruded hexagonal, or extruded octagonal shape;
- and
- forming multiple light exiting facets on each of the structures;
- wherein at least one of the facets has an optically rough, rugged pitted surface;
- wherein the structures are formed of polymerized material and wherein the polymerized material is a photopolymerized material.
A diffuser comprising:
- a plurality of light diffusing protruded structures, each of the structures having multiple light exiting facets;
- wherein the facets have multiple orientations;
- and
- wherein at least one of the protruded structures has a conical, extruded hexagonal, or extruded octagonal shape, and at least one of the facets thereof has an optically rough, rugged pitted surface;
- wherein the structures are formed of polymerized material and wherein the polymerized material is a photopolymerized material.
Dependencies are inferred from the claim text.