Method of determining chromaticity rank of light emitting device

A method of manufacturing a light emitting device, the method comprising:

• providing a light emitting device including a blue light emitting element with a peak light emission wavelength in a range of 447 to 452 nm, a green light emitting element with a peak light emission wavelength in a range of 520 to 541 nm, and a red light emitting element or red fluorescent member with a peak light emission wavelength in a range of 630 to 632 nm;
• measuring a chromaticity of the light emitting device;
• and
• sorting the light emitting device into either of chromaticity ranks each having a predetermined range of chromaticity,
• wherein one of the chromaticity ranks is a region surrounded by four defining points on a 1931 CIE Chromaticity Diagram, and
• wherein a ratio of a distance in a y-direction between, of the four defining points, two defining points furthest from each other in the y-direction to a distance in an x-direction between, of the four defining points, two defining points furthest from each other in the x-direction is 0.5 or less.

A light emitting device comprising:

• a blue light emitting element;
• a green light emitting element;
• and
• a red light emitting element or a red fluorescent member,
• wherein the light emitting element has a chromaticity rank defined as a region surrounded by four defining points on a 1931 CIE Chromaticity Diagram, and a ratio of a distance in a y-direction between, of the four defining points, two defining points furthest from each other in the y-direction to a distance in an x-direction between, of the four defining points, two defining points furthest from each other in the x-direction is 0.5 or less.