A lighting device body, recessed in a ceiling surface when it is used, with a central axis of the lighting device body being oriented in a vertical direction, wherein the lighting device body comprises: a planar light source having a light-emitting surface, and a reflector formed in a bowl-like shape centering around an axis that intersects the central axis, wherein the reflector is disposed to cover a lower portion of the light-emitting surface, wherein the reflector is inclined such that a lower portion of the axis is located nearer to a wall surface, and wherein the light-emitting surface is disposed such that: the center of the light-emitting surface is located on the axis, and the light-emitting surface is inclined such that, when a first virtual plane that is orthogonal to the axis is used as a reference plane, a portion of the light-emitting surface farther from the wall surface is located relatively upper, characterized in that when viewed in a cross section cut along a plane that includes the central axis and the axis, and when an inclination angle of the axis with respect to the central axis is defined as α and an inclination angle of the light-emitting surface with respect to the first virtual plane is defined as β, the reflector and the light-emitting surface are disposed to obtain a relationship between α and β as expressed in: α < β < 90 degrees. a planar light source having a light-emitting surface, and a reflector formed in a bowl-like shape centering around an axis that intersects the central axis, wherein the reflector is disposed to cover a lower portion of the light-emitting surface, wherein the reflector is inclined such that a lower portion of the axis is located nearer to a wall surface, and wherein the light-emitting surface is disposed such that: the center of the light-emitting surface is located on the axis, and the light-emitting surface is inclined such that, when a first virtual plane that is orthogonal to the axis is used as a reference plane, a portion of the light-emitting surface farther from the wall surface is located relatively upper, characterized in that when viewed in a cross section cut along a plane that includes the central axis and the axis, and when an inclination angle of the axis with respect to the central axis is defined as α and an inclination angle of the light-emitting surface with respect to the first virtual plane is defined as β, the reflector and the light-emitting surface are disposed to obtain a relationship between α and β as expressed in: α < β < 90 degrees. the center of the light-emitting surface is located on the axis, and the light-emitting surface is inclined such that, when a first virtual plane that is orthogonal to the axis is used as a reference plane, a portion of the light-emitting surface farther from the wall surface is located relatively upper, characterized in that when viewed in a cross section cut along a plane that includes the central axis and the axis, and when an inclination angle of the axis with respect to the central axis is defined as α and an inclination angle of the light-emitting surface with respect to the first virtual plane is defined as β, the reflector and the light-emitting surface are disposed to obtain a relationship between α and β as expressed in: α < β < 90 degrees.