Abstract: A display device includes a surface configured to be illuminated by at least two directed light beams, and one or more holographic optical elements. The surface is configured and disposed with respect to the holographic optical element to display an autostereo image that is illuminated by the directed light beams wherein the holographic element diffracts the directed light beams to form separate stereo viewing areas. The surface and the holographic optical element may be configured and oriented with respect to each other to enable the directed light beams to be alternately switched in synchronization with left and right stereo images presented on the surface to yield an autostereo view to one or more observers.

Abstract: A system is disclosed for recording a diffraction optical element providing a stereographic image to an observer includes a monochromatic light source having a characteristic wavelength providing a single source beam and a recording plate made from a material sensitive substantially to the characteristic wavelength. The system also includes at least first, second and third diffusers each having a characteristic wavelength differing from one another, a first beam split from the single source beam received from the monochromatic light source at the wavelength and at least one mirror reflecting a second split beam as a converging reference beam from the light source. The recording plate is exposed to the diffuse light beam separately passing through the first, second and third diffusers and received from the first beam and is exposed to the converging reference beam to form thereby the diffraction optical element.

Abstract: A fiber optic point source is utilized to generate a first wavefront which is intersected with a second wavefront to form a desired interference pattern in a recording medium. The point source is moved relative to the recording medium during exposure in order to reduce multiple order scattering noise, and a feedback monitoring system permits determination of portions of the recording medium requiring increased exposure.

Abstract: A fiber optic point source is utilized to generate a first wavefront which is intersected with a second wavefront to form a desired interference pattern in a recording medium. The point source is moved relative to the recording medium during exposure in order to reduce multiple order scattering noise, and to provide a relatively large translational motion which is gradual and generally follows an angular scanning motion of the fiber optic point source.