Patent ID: 9583670
Date: 2017-02-28
CPC Classifications: F21V,H01L

Claim:
1. A luminescence conversion element for wavelength conversion of primary electromagnetic radiation into secondary electromagnetic radiation, comprising: first luminescent material particles that, when excited by the primary electromagnetic radiation, emit a first electromagnetic radiation, a peak wavelength of which is at least 515 nm to at most 550 nm of a green region of the electromagnetic spectrum; second luminescent material particles that, when excited by the primary electromagnetic radiation, emit a second electromagnetic radiation, a peak wavelength of which is at least 595 nm to at most 612 nm of a yellow-red region of the electromagnetic spectrum; and third luminescent material particles that, when excited by the primary electromagnetic radiation, emit a third electromagnetic radiation, a peak wavelength of which is at least 625 nm to at most 660 nm of a red region of the electromagnetic spectrum, wherein the first, second and third luminescent material particles each consist of different materials, a peak wavelength of the primary radiation lies in a blue region of the electromagnetic spectrum, the luminescence conversion element, when excited energetically by the primary radiation, emits secondary radiation containing the first, second and third electromagnetic radiation, and a correlated color temperature of a mixed radiation consisting of portions of the primary radiation and the secondary radiation corresponds to a color temperature of white light.