Patent ID: 9411153
Filing Date: 2016-08-09
CPC Classification: F21V,G02B,G03B,H04N

Claim Text:
1. A phosphor wheel for an illumination device, for converting pump light into conversion light, which is configured for rotation about a rotation axis, having a carrier substrate and at least two phosphor regions arranged thereon, wherein a first phosphor region comprises a first phosphor layer comprising a first phosphor for emitting conversion light of a first light color, wherein a second phosphor region comprises a second phosphor layer comprising a second phosphor for emitting conversion light of a second light color, wherein a front surface, arranged for exposure to the pump light, of the first phosphor layer is configured in a planar fashion in such a way that the front surface of the first phosphor layer lies in a first imaginary plane, wherein a front surface, arranged for exposure to the pump light, of the second phosphor layer is configured in a planar fashion in such a way that the front surface of the second phosphor layer lies in a second imaginary plane, and wherein the first imaginary plane and the second imaginary plane are parallel to one another and are separated from one another by a non-zero distance D.