| abstract |
Disclosed is a photo-conversion structure having good light transmittance which hardly deteriorates. This photo-conversion structure is capable of controlling the color tone as desired, while emitting light with high luminance. Also disclosed is a light-emitting device using such a photo-conversion structure. Specifically disclosed is a photo-conversion structure comprising a layer composed of a ceramic composite body and a phosphor layer for color tone control which is formed on the surface of the ceramic composite body. The ceramic composite body layer absorbs a part of a first light and emits a second light, while transmitting another part of the first light. The phosphor layer for color tone control absorbs a part of the first light or a part of the second light and emits a third light, while transmitting another part of the first light or another part of the second light. The ceramic composite body is composed of a solidified body wherein at least two or more metal oxide phases are continuously and three-dimensionally intertwined with each other, and at least one of the metal oxide phases in the solidified body contains a metal element oxide that produces fluorescence. |