Patent ID: 11953194
Assignee: SIGNIFY HOLDING B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  C | IPC C  F

Claim 2:
3. The lighting device according to claim 1, comprising (i) a first converter element comprising the first converter material, wherein the first converter element comprises a layer or a body, and (ii) a second converter element comprising the second converter material, wherein the second converter element comprises a layer or a body; wherein the first converter element has a first surface area A1, and wherein the second converter element has a second surface area A2,
wherein the first converter element and the second converter element are configured in a layered structure, wherein at least 35% of the second surface area A2 is in thermal contact with the first thermally conductive element, and wherein a first ratio R1 of a percentage PA1 of the first surface area A1 in thermal contact with the first thermally conductive element to a percentage PA2 of the second surface area A2 in thermal contact with the first thermally conductive element is selected from the range of 0≤R1≤0.5.