Light emitting sheet and light unit including the same

A light unit, comprising:

• a light source;
• and
• a light exiting member for exiting light upward from the light source,
• wherein the light exiting member has a plurality of fine pattern portions formed on one surface thereof,
• wherein at least one fine pattern portion of the plurality of fine pattern portions has a cavity,
• wherein the cavity is defined by a lower surface located at a predetermined depth from an opening and a plurality of inner surfaces each of which is connected to each side of the lower surface,
• wherein the cavity has a width which becomes narrower from the opening toward the lower surface,
• wherein at least one of the inner surfaces is a curved surface convex toward inside of the cavity,
• wherein the curved surface includes at least one straight line, and
• wherein the straight line is formed when the curved surface is cut in a direction perpendicular to the upper surface and the opening.