| 摘要 |
PROBLEM TO BE SOLVED: To improve a look of a color of a light-emitting device including a semiconductor light-emitting device being inferior in a look of a color, that already exists at present or being used practically, and in addition, to adjust the look of the color of the semiconductor light-emitting device superior in the look of the color further in accordance with preference of a user.SOLUTION: The light-emitting device is characterized in that a control element acts on a light emitted from a light-emitting element in a main radiation direction, such that the light emitted from the light-emitting device in the main radiation direction meets a specific requirement.SELECTED DRAWING: Figure 32 |
