Light-concentrating film, method for producing same, focusing element, solar cell, and focusing method
US9176474B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Sep 10, 2010 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Dec 23, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24479
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a focusing method and a light-concentrating film capable of concentrating incident light in a wide angular range with high efficiency, a focusing element including the light-concentrating film, and a solar cell. The present invention is alight-concentrating film that is made of an organic material, and is characterized by having a multilevel gradation pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.