| 摘要 |
FIELD: physics, optics.SUBSTANCE: invention relates to a luminescent converter (10, 12) for a phosphor-enhanced light source (100, 102, 104). The luminescent converter comprises a first luminescent material (20) configured to absorb at least part of the excitation light (hv0) emitted by a light emitter (40, 42) of the phosphor-enhanced light source, and for convert at least part of the absorbed excitation light into first emission light (hv1) having a longer wavelength compared to the excitation light (hv0). The luminescent converter also comprises a second luminescent material (30) comprising organic luminescent material (30) and configured to absorb at least part of the first emission light emitted by the first luminescent material, and for converting at least part of the absorbed first emission light into second emission light (hv2) having a longer wavelength compared to the first emission light. The effect of the luminescent converter according to the invention is that two-step light conversion according to the invention generates a relatively small Stokes shift of light emitted by the organic luminescent material.EFFECT: high efficiency of conversion.14 cl, 5 dwg |
