Surface Emitting Unit

摘要

A surface-emitting unit includes a surface-emitting panel which emits light, a transmissive member which is arranged to face a light-emitting surface and propagates light emitted from the surface-emitting panel, and a reflection member which scatters propagated light. The light-emitting surface has a light-emitting region and a non-light-emitting region. The reflection member is provided on the surface-emitting panel so as to overlap with the non-light-emitting region. When a light distribution curve in a plane perpendicular to the light-emitting surface is drawn for each surface-emitting panel, the light distribution curve has at least a portion in which a condition of L>cos θ is satisfied, with a luminance on a front side along an axis extending in a direction of normal to the light-emitting surface being defined as 1 and L representing a luminance in a direction in which an angle formed with respect to the axis in the plane is θ.

主权项

1. A surface-emitting unit comprising:
a plurality of surface-emitting panels which are disposed such that light-emitting surfaces are two-dimensionally aligned and emit light toward a front; a transmissive member which is arranged to face the light-emitting surfaces of adjacent surface-emitting panels and propagates light emitted from the surface-emitting panels as being reflected in the transmissive member; and a light scattering portion which scatters the light propagated by the transmissive member toward the front, the light-emitting surface of each of the plurality of surface-emitting panels having a light-emitting region which emits light and a non-light-emitting region which is located around an outer periphery of the light-emitting region and does not emit light, the light scattering portion being provided on the surface-emitting panel so as to overlap with the non-light-emitting region when viewed from the front, and when a light distribution curve in a plane perpendicular to the light-emitting surface of light emitted from the surface-emitting panel is drawn for each of the plurality of surface-emitting panels, the light distribution curve having at least a portion in which a condition of L>cos θ is satisfied, with a luminance on a front side along an axis extending in a direction of normal to the light-emitting surface being defined as 1 and L representing a luminance in a direction in which an angle formed with respect to the axis in the plane is θ.