Abstract: An illuminator device includes a diffuser and a light collecting and concentrating element. The diffuser receives light rays from a light source as input and distributes light rays as output. The light collecting and concentrating element includes an input optical aperture formed on a base surface, an output optical aperture formed on an opposing surface to the base surface, and at least two sidewalls. The sidewalls extend substantially between the input and output optical apertures. The diffuser optically attaches to the base surface such that light rays from the diffuser output couple into the light collecting and concentrating element through the input optical aperture.