Distributed refractive index lens and method for manufacturing the same
First Claim
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1. A production method of a distributed refractive index lens comprising a plurality of areas having refractive index distribution, said production method including:
- a first step of supplying a base material containing polysilane as a main ingredient; and
a second step of applying ultraviolet rays having an intensity distribution to said base material to form said refractive index distribution on said base material;
wherein a center axis of a change of a refractive index in said each area is orthogonal with respect to a direction of an ultraviolet-exposure to said polysilane.
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Abstract
A distributed refractive index lens and method of producing the lens are disclosed. The lens has a plurality of areas having refractive index distributions, and includes a plate-like member containing polysilane. The refractive index distribution of these areas is a distribution that includes a change in a refractive index in a direction parallel to a plane of the plate-like member, and includes a substantial uniform refractive index in a direction perpendicular to the plane.
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36 Claims
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1. A production method of a distributed refractive index lens comprising a plurality of areas having refractive index distribution, said production method including:
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a first step of supplying a base material containing polysilane as a main ingredient; and a second step of applying ultraviolet rays having an intensity distribution to said base material to form said refractive index distribution on said base material; wherein a center axis of a change of a refractive index in said each area is orthogonal with respect to a direction of an ultraviolet-exposure to said polysilane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A production method for producing a distributed refractive index lens including a plurality of areas having a refractive index distribution, comprising:
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a polysilane material preparing step of preparing a substrate of polysilane material to which an oxide is added in a predetermined distribution; and an ultraviolet irradiation step of applying ultraviolet rays having an intensity distribution to said substrate of said polysilane material to form said refractive index distribution on said polysilane material, wherein said predetermined distribution of said oxide is a distribution in which a concentration of said oxide is lower at a part closer to an irradiation surface of said polysilane material to which said ultraviolet rays are applied. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A production method for producing a distributed refractive index lens in which a plurality of laminating base materials including respective areas having predetermined refractive index distributions are laminated in a thickness direction of said base material, said production method including:
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a first step of supplying a base material containing polysilane as a main ingredient, a second step of applying ultraviolet rays having an intensity distribution to said base material to form said refractive index distribution on said base material, and a third step of supplying a plurality of the base materials which are formed in said second step and laminating each said base material together in a thickness direction of said base material, wherein a direction of a change of a refractive index in said each area is according to a direction of an ultraviolet exposure to said polysilane. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification