An object of the invention is to provide an illumination device lineup having many variations that respond to various illumination visual fields and work distances while the cost is controlled. Another object of the invention is to provide a producing method for implementing the illumination device having the many variations. Each cell includes a light emitting element mounted on a board and a lens that is disposed so as to be paired with the light emitting element. A relative positional relationship between the light emitting element and the lens in each cell varies according to a position on the board. Therefore, light is emitted from the light emitting element to the outside with a non-zero angle that is determined in each cell with respect to a direction perpendicular to the board.