WAVELENGTH CONVERTING LIGHT-EMITTING DIODE WITH LOW EMISSION OF UNCONVERTED OPTICAL RADIATION Russian patent published in 2013 - IPC H01L33/50 

FIELD: physics.

SUBSTANCE: method of making a wavelength converting light-emitting device comprising: a light-emitting diode for emitting optical radiation with a first wavelength, having a light-emitting surface on which there is a wavelength converting material adapted to receive optical radiation emitted by said light-emitting diode, and convert at least a portion of said optical radiation to optical radiation with a second wavelength; placing on at least a portion of the external surface of said light-emitting device with the converted wavelength a light-cured coating material, irradiation with optical radiation with said first wavelength with effective intensity of which results in curing of said light-cured coating material; and curing at least a portion of said light-cured coating material by irradiating said material with said light-emitting diode in order to form cured material which blocks optical radiation. Two versions of the wavelength converting light-emitting device are also disclosed. The invention can be used to selectively prevent output of unconverted optical radiation from a device.

EFFECT: wavelength converted light-emitting diode emits substantially only converted optical radiation.

12 cl, 2 dwg