LED LIGHT SOURCE DEVICE AND LED ELECTRIC BULB

摘要

PROBLEM TO BE SOLVED: To promote life-prolongation of a phosphor and a light emitting diode element, while enabling the brightness of light to become approximately uniform of which the wavelength is converted with a wavelength conversion cover.

SOLUTION: This is provided with an LED light emitting diode part 6 having a plurality of light emitting diode elements 12 which are arranged so as to have a plane surface and radiate near-ultraviolet rays or blue rays, and the wavelength conversion cover 9 which has a planar part 16 opposing to the light emitting diode elements 12 in a separated position at a prescribed distance from the face where the light emitting diode elements 12 are arranged, and in which a phosphor 15 is installed that carries out the wavelength conversion of the light radiated from the light emitting diode elements 12.

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