Patent ID: 8297784

Claim:
A surface-emission unit comprising: a plurality of light-emission element parts each including a light-emission element, aligned and arranged on a substrate two-dimensionally; and a plurality of optical lenses each arranged on the substrate with respect to each of the light-emission element parts, the optical lenses being configured to diffuse light from the light-emission element, wherein each of the optical lens is fixed to the substrate through one or more support parts, and each of the support parts is arranged, such that none of the support parts of the light-emission element parts arranged in a horizontal direction completely overlap a line connecting the light-emission element parts arranged in the horizontal direction, and none of the support parts of the light-emission elements parts arranged in a vertical direction completely overlap a line connecting the light-emission element part arranged in the vertical direction in a part or a whole of a region in which the light-emission element parts are aligned and arranged two-dimensionally.