| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid lighting system for actualizing easy heat release and easy color chromaticity adjustment.SOLUTION: The solid lighting system includes a light source part having a semiconductor light emitting element for emitting exciting light, a light guide part, a wavelength conversion layer, and irradiation region moving means. The light guide part has an incident portion into which the exciting light is introduced, and an irradiation portion from which the exciting light is emitted. The wavelength conversion layer has a first region for absorbing the exciting light and emitting first wavelength conversion light having a wavelength greater than the wavelength of the exciting light, and a second region for absorbing the exciting light and emitting second wavelength conversion light having a wavelength greater than the wavelength of the exciting light. The first wavelength conversion light and the second wavelength conversion light are different in emission spectrum. The ratio of the light output of the first wavelength conversion light to the light output of the exciting light emitted via the first region is different from the ratio of the light output of the second wavelength conversion light to the light output of the exciting light emitted via the second region. The irradiation region moving means changes a position on the surface of the wavelength conversion layer to be irradiated with the exciting light emitted from the irradiation portion.SELECTED DRAWING: Figure 1 |
