Abstract: There is provided a transmission type screen having a directional light scattering lens and a fresnel lens, wherein the fresnel lens has contact portions that contact with the directional light scattering lens and non-contact portions which are provided between the contact portions, whose height is lower than that of the contact portions and which do not contact with the directional light scattering lens. The invention realizes the very practical transmission type screen that allows viewers to appreciate good images in which blur and Moire are inconspicuous by preventing the blur from occurring on the screen and by reducing the intensity of Moire which is caused by the periodic structure of the fresnel and lenticular lenses.

Abstract: There is provided a transmission type screen having a directional light scattering lens and a fresnel lens, wherein the fresnel lens has contact portions that contact with the directional light scattering lens and non-contact portions which are provided between the contact portions, whose height is lower than that of the contact portions and which do not contact with the directional light scattering lens. The invention realizes the very practical transmission type screen that allows viewers to appreciate good images in which blur and Moire are inconspicuous by preventing the blur from occurring on the screen and by reducing the intensity of Moire which is caused by the periodic structure of the fresnel and lenticular lenses.

Abstract: The Fresnel lens sheet has a plurality of prisms arranged concentrically. The plurality of prisms consists of discontinuous concentric circles in a random mosaic manner. The plurality of prisms may have various circumferential widths. In two radially adjacent prisms of the plurality of prisms, circumferential ends of one prism may not be extensions of the end of the other inner or outer adjacent prism. Two circumferentially adjacent prisms of the plurality of the prisms may be different in distance from the center of the Fresnel circle from each other.