A polarization stereoscopic display device and a method of its manufacture. The camera unit may include a pickup element, a lens system in which light rays incoming from a prescribed range of a visual field onto the pickup element are imaged, the lens system including a wide-angle lens system whose visual field angle in the horizontal direction is 120 degrees or more, and an anamorphic lens system whose anamorphic ratio is 1. The number of analyzed positions may be different from the number of zero-crossings.