| 摘要 |
According to one embodiment, a solid state lighting device includes an irradiating section (10), an optical waveguide body (30), a reflecting section (50), and a first wavelength conversion layer (40). The irradiating section (10) emits laser light (70). The optical waveguide body (30) includes an incident surface into which the laser light is led (70), an inclined surface crossing an optical axis of the laser light (70), and an emission surface. The thickness between the inclined surface and the emission surface decreases as the inclined surface and the emission surface are further away from the incident surface. The reflecting section (50) is provided on the inclined surface. The first wavelength conversion layer (40) is provided on the inclined surface and configured to emit wavelength-converted light (73) having a wavelength larger than the wavelength of the laser light (70) and emit the laser light (70) as scattered light. Mixed light of the scattered light and the wavelength-converted light (73) is emitted to above the emission surface. |
