Transmissive fluorescence emitting module and light emitting device

A transmissive fluorescence emitting module comprising:

• a fluorescent substrate that consists essentially of a fluorescent material;
• a metal member bonded to a principal surface that the fluorescent substrate includes;
• and
• a rotator that rotates the fluorescent substrate and the metal member about an axis extending in a thickness direction of the fluorescent substrate,
• wherein in a plan view of the fluorescent substrate, the fluorescent substrate includes a region that does not overlap the metal member, the region being annular ring-shaped,
• the fluorescent substrate includes another principal surface that is on an opposite side from the principal surface of the fluorescent substrate,
• when excitation light that excites the fluorescent material enters the region from the principal surface, light resulting from converting a wavelength of the excitation light that has entered exits through the another principal surface,
• the metal member includes a plurality of radiator fins, and
• each of the plurality of radiator fins includes a side surface at a position most distant from the axis, the side surface including a slanting surface that is slanted towards the axis in a direction from the another principal surface to the principal surface.