Patent Document ID: 8144263
Application ID: 12294609
Patent Status: 1

Claim One:
1. A video unit, comprising: an image creation system configured to create an image; a lens assembly configured to produce a meduim wide-angle projection of the image, wherein the lens assembly comprises: a separation lens configured to receive light rays relating to the image from the image creation system, to separate illumination components of the light rays from colored light components of the light rays, and to direct the illumination components of the light rays back to the image creation system; an aspherical lens disposed adjacent to the separation lens and configured to cause the light rays from the separation lens to diverge; a compound doublet lens disposed adjacent to the aspherical lens and configured to focus the light rays from the aspherical lens; a converging lens disposed adjacent to the compound doublet lens and configured to cause the light rays from the compound doublet lens to converge; a focusing lens configured to further focus the light rays from the converging lens to produce the wide-angle projection of the image; and a mirror disposed between the converging lens and the focusing lens along a light path and configured to reflect the light rays from the converging lens to the focusing lens; and an aperture stop positioned to capture the wide-angle projection of the image from the lens assembly.