HAIR CUTTING MEMBER, DEVICE BODY OF HAIR CUTTING DEVICE, AND HAIR CUTTING DEVICE

A hair cutting member (3) includes a light emitting module (M1) and a connecting member (71). The light emitting module (M1) includes an optical waveguide (4) including a core, and a retaining member (5) retaining the optical waveguide (4) with at least a portion of the core being exposed so as to apply light to hair growing on a skin. The connecting member (71) is integrally joined to the light emitting module (M1) with the connecting member (71) retaining an end of the optical waveguide (4), and positions the core with respect to light introduced into the optical waveguide (4). The connecting member (71) is mechanically connectable to a connection target (81). The core is configured so that light is introduced from an end thereof that faces the connection target. The technology of the present disclosure improves ease of assembly of a hair cutting member, a device body of a hair cutting device, and a hair cutting device.