Light emitting device

A light emitting device comprising:

• a board;
• a light emitting element mounted on a principal surface of the board, the light emitting element emitting light having a wavelength of 250 nm to 500 nm;
• a red fluorescent layer formed on the light emitting element, the red fluorescent layer including a red phosphor expressed by equation (1), an outer circumference of the red fluorescent layer having a semicircular shape with a diameter r in a section perpendicular to the principal surface;
• (M1−x1Eux1)aSibAlOcNd (1)
• (In the equation (1), M is an element that is selected from IA group elements, IIA group elements, IIIA group elements, IIIB group elements except Al (Aliminum), rare-earth elements, and IVB group elements, and x1, a, b, c, and d satisfy the following relationship:
• 0<x1≦1,
• 0.60<a<0.95,
• 2.0<b<3.9,
• 0.04≦c≦0.6,
• 4<d<5.7)
• an intermediate layer formed on the red fluorescent layer, the intermediate layer being made of transparent resin, an outer circumference of the intermediate layer having a semicircular shape with a diameter D in a section perpendicular to the principal surface;
• and
• a green fluorescent layer formed on the intermediate layer, the green fluorescent layer including a green phosphor, an outer circumference of the green fluorescent layer having a semicircular shape in a section perpendicular to the principal surface,
• wherein a relationship between the diameter r and the diameter D satisfies equation (2):
• 2.0r (μm)≦d≦(r+1000) (μm). (2)