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US 2020/0004044 A1Published application
Index Matching Layers
AssigneeVision Ease, LP
InventorsJeff Brown, Michael S. Boulineau, Michael Marshall, Tim Reynolds
Life of this patent
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Abstract
Optical devices such as eyeglass lenses and digital displays having improved optical characteristics achieved, in part, through incorporation of an index matching system between material layers having different refractive indices.
Claims17
An eyeglass lens having reduced interference fringes comprising:
- a base lens substrate having a first refractive index;
- an index matching system disposed on a surface of the base lens substrate and having a plurality of index matching layers that form a pattern alternating between an increased and decreased index of refraction relative to 1) index matching layers immediately adjacent or to 2) the base lens, and
- a coating disposed on a surface of the index matching system having a second refractive index that differs from the first refractive index by 0.08 or greater.
A system for improving optical characteristics in optical devices comprising:
- a first material layer having a first refractive index;
- a second material layer having a second refractive index different from the first refractive index;
- and
- an index matching system interposed between the first material layer and the second material layer that attenuates a total reflectance of incident light of the optical device;
- the index matching system comprising a plurality of index matching layers that form a pattern alternating between an increased and decreased index of refraction relative to 1) index matching layers immediately adjacent or to 2) the first material.
2 more elements
A method for reducing interference fringes observed in an optical article comprising:
- obtaining a base lens substrate having a first refractive index;
- forming an index matching system on a surface of the base lens substrate having a plurality of material layers that form a pattern alternating between an increased and decreased index of refraction relative to 1) index matching layers immediately adjacent or to 2) the base lens;
- and
- applying a coating on a surface of the index matching system having a second refractive index that differs from the first refractive index by 0.08 or greater.
1 more element
Dependencies are inferred from the claim text.