Patent ID: 9030737
Filing Date: 2015-05-12
Classification: G02B

Abstract:
1. A 3D display device comprising: a display section that extracts respective single pixels from corresponding N individual images with mutually different viewpoints, that composes an elemental pixel by arranging the N extracted pixels in a specific sequence along a specific direction for all the pixels of the N individual images and that displays a combined image in which the N individual images have been combined; a first optical section of focal distance f1 provided with a group of small lenses arrayed along the specific direction, the respective individual small lenses being disposed along the specific direction so as to each correspond to mutually different single display regions of the elemental pixels in the display section and the respective individual small lenses separating rays of light emitted from the N pixels of the corresponding elemental pixels into N beams of parallel light with mutually different light ray directions; and a second optical section of focal distance f2 that converges the N beams of parallel light that are emitted from the first optical section and hit the individual small lenses by converging so as to offset the N beams from the optical axis, wherein a distance d1 between the first optical section and the second optical section satisfies f2−f1≦d1≦f2 and a viewing distance d2 from the second optical section satisfies d2≈f2.