Patent ID: 8570628
Filing Date: 2013-10-29
Classification: G02B,G03H

Abstract:
1. A three-dimensional (3D) color display apparatus, comprising: a plurality of light sources configured to emit different color beams; a volume diffractive element, in which a hologram is recorded using one of the color beams that is emitted from one of the plurality of light sources as a reference beam and a signal beam, configured to display color images by diffracting the color beams emitted from the plurality of light sources; and a scanning unit configured to scan the color beams to be diffracted or being diffracted by the volume diffractive element; wherein each of the plurality of light sources comprises light emission points having an array structure, and wherein a light beam from the plurality of light sources is directly modulated in a propagating direction of the light beam by controlling turning on or turning off of the light emission points.