OPTICAL FILM, ANTIREFLECTION OPTICAL ELEMENT AND MASTER
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Accused Products
Abstract
An optical element includes a base and a large number of structures arranged on the surface of the base, the structures being projections or depressions. The structures are arranged at a pitch shorter than or equal to a wavelength of light in a use environment. An effective refractive index in the depth direction of the structures gradually increases toward the base and has two or more inflection points.
66 Citations
40 Claims
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1-20. -20. (canceled)
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21. An optical element having an anti-reflection function comprising:
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a base; and a large number of structures arranged on a surface of the base, the structures being projections or depressions, wherein the structures are arranged in a hexagonal lattice, a quasi-hexagonal lattice, a tetragonal lattice, or a quasi-tetragonal lattice at a pitch shorter than or equal to a wavelength of light in a use environment, and an effective refractive index in a depth direction of the structures gradually increases toward the base and has two or more inflection points. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A display device comprising an optical element having:
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a base; and a large number of structures arranged on a surface of the base, the structures being projections or depressions, wherein the structures are arranged in a hexagonal lattice, a quasi-hexagonal lattice, a tetragonal lattice, or a quasi-tetragonal lattice at a pitch shorter than or equal to a wavelength of light in a use environment, and an effective refractive index in a depth direction of the structures gradually increases toward the base and has two or more inflection points.
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35. An optical component having an anti-reflection function comprising:
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an optical component; and a large number of structures arranged on a light-entering surface of the optical component, the structures being projections or depressions, wherein the structures are arranged in a hexagonal lattice, a quasi-hexagonal lattice, a tetragonal lattice, or a quasi-tetragonal lattice at a pitch shorter than or equal to a wavelength of light in a use environment, and an effective refractive index in a depth direction of the structures gradually increases toward a base and has two or more inflection points. - View Dependent Claims (36)
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37. A master comprising:
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a base; and a large number of structures arranged on a surface of the base, the structures being projections or depressions, wherein the structures are used for forming a surface shape of an optical element having an anti-reflection function, the structures are periodically arranged in a hexagonal lattice, a quasi-hexagonal lattice, a tetragonal lattice, or a quasi-tetragonal lattice at a pitch shorter than or equal to a wavelength of light in an environment where the optical element is used, and an effective refractive index in a depth direction of the optical element forming by the structures gradually increases toward the base of the optical element and has two or more inflection points.
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38. An optical element having an anti-reflection function comprising:
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a base; and a large number of structures arranged on a surface of the base, the structures being projections or depressions, wherein the structures are arranged at a pitch shorter than or equal to a wavelength of light in a use environment, the structures have a cone-like shape or an elliptic cone-like shape whose top has a curvature, or a truncated cone-like shape or a truncated elliptic cone-like shape, and an effective refractive index in a depth direction of the structures gradually increases toward the base and has two or more inflection points. - View Dependent Claims (39)
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40. An optical element having an anti-reflection function comprising:
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a base; and a gradient film formed on the base, wherein an effective refractive index in a depth direction of the gradient film gradually increases toward the base and has two or more inflection points.
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Specification