Patent ID: 9341343
Filing Date: 2016-05-17
CPC Classification: A61B,F21K,F21V,G03B,H01L,H04N

Claim Text:
1. A phosphor device comprising: a carrier member having upper and lower faces; a phosphor layer arranged at the upper face of the carrier member, whereby the phosphor layer comprises at least one phosphor zone; a reflective zone arranged adjacent to the at least one phosphor zone; an optical transmitting member having a first end face that faces the upper face of the carrier member and a second end face that receives exciting light from a light source, each of the first and second end faces having a same polygonal shape, the second end face having a greater area than the first end face, the optical transmitting member being arranged at the top portion of the phosphor layer and the reflective zone, wherein the first end face of the optical transmitting member covers at least a subarea of each of the at least one phosphor zone and the reflective zone, wherein the optical transmitting member is elongated and has a polygonal cross section over its entire length, a shape of the cross section corresponding to the polygonal shape of the first and second end faces, and wherein a width of the polygonal cross section of the optical transmitting member decreases linearly in a direction approaching the carrier member.