Light source with adapted spectal output
US10345238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2014 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Apr 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8516
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The white light spotlight for luminescence (e.g. biomarker) detection according to the present application includes: at least one solid state light emitting element to emit primary light, and a plurality of wavelength converting materials, to convert part of primary light into secondary light, provided as an array of independent wavelength converting domains, wherein different domains comprise converting materials producing different secondary light emission bands/peaks, each converting material being adapted to convert primary light into secondary light, wherein each converting material is adapted to contribute to the total emission spectrum with at least one emission band/peak and the total secondary light emission provided by said converting materials provides a broad band emission spectrum except for at least one defined narrow wavelength range in which the spotlight produces no or significantly reduced light emission, and wherein the combined light emission from the converting materials is controllable to form said spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.