Composite material for lighting filtering, lighting apparatus, and method for determining doping concentration or thickness of composite material
US10830398B2 · kind B2 · utility
1Cited by
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9Claims
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Key dates
| Filing date | Dec 29, 2016 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Jun 28, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A composite material (11,21) for light filtering, comprising: a polymeric matrix material and particles of neodymium compound doped in the polymeric matrix material. A lighting apparatus (10,20) comprises the composite material. A method for determining a doping concentration of particles of neodymium compound in the composite material, and a method for determining a thickness of the composite material are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.