White light emitting module
US10090442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2013 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Apr 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting module (10), adapted to produce white output light having an emission peak in the wavelength range from 400 to 440 nm, comprises: ⋅—at least one first light emitting element (110) adapted to emit light having an emission peak in a first wavelength range from 440 to 460 nm; ⋅—at least one wavelength converting material (85) arranged to receive light emitted by said first light emitting element, and being capable of emitting light having an emission peak in the green to red wavelength range; and ⋅—at least one second light emitting element (120) adapted to emit light having an emission peak in a second wavelength range from 400 to 440 nm. The module according to the invention provides white light of acceptable color rendering with a “crisp white” effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.