| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device capable of making aesthetic aspects and suitable for use in daily life.SOLUTION: A ceiling light 100 has a rotationally symmetrical outer shape, and includes a light source unit 2a, a cover 3 and a reflection sheet 41. The light source unit 2a includes a plurality of LEDs disposed so as to be rotationally symmetric about the center axis c of the ceiling light 100, and is set so that each of the plurality of LEDs emits light in a direction almost parallel to a flat surface orthogonal to the center axis c. The reflection sheet 41 has a rotationally symmetric shape, and reflects the light emitted in the almost parallel direction. The cover 3 covers the plurality of LEDs and scatters light emitted from the LED being turned on among the plurality of LEDs. The plurality of LEDs include light source groups 1, 2. The light source group 1 is lit up in an illumination mode 1 where illumination with white light is performed. The light source group 2 is lit up in an illumination mode 2 where at least either of color distribution or brightness distribution at the cover 3 is inhomogeneous. |
