Dual-view integrated imaging 3D display method based on holographic optical element

Abstract

The invention provides a double-vision integrated imaging 3D display method based on a holographic optical element. The method mainly comprises two processes of a spatial multiplex holographic optical element manufacturing process and a double-vision integrated imaging 3D displaying process. In the spatial multiplex holographic optical element manufacturing process, a parallel light wave I vertically enters a holographic material; parallel light waves II and III respectively enter a micro-lens array in angles of theta1 and theta2 and is changed to oblique spherical wave arrays I and II; the parallel light wave I simultaneously interferes with the oblique spherical wave arrays I and II; and interference fringes are recorded on a holographic material, thereby obtaining the spatial multiplex holographic optical element. In the double-vision integrated imaging 3D displaying process, a displaying light wave carries micro-image array information and is irradiated to the holographic optical element in a phase which is same with that of the parallel light wave I, thereby forming a left vision area and a right vision area in front of the holographic optical element. Furthermore 3D images I and II are respectively represented in the left vision area and the right vision area, thereby realizing double-vision integrated image 3D displaying.

Description

technical field [0001] The invention relates to a dual-view display technology and an integrated imaging 3D display technology, in particular to a dual-view integrated imaging 3D display method based on a holographic optical element. Background technique [0002] Integrated imaging 3D display has the advantages of continuous viewpoint, full parallax, no eye fatigue and no need for auxiliary equipment, but there are also problems such as narrow viewing angle. Dual-view display refers to the display method of seeing different images at different viewing positions, which provides more convenience for viewers. We can use the narrow viewing angle characteristic of the integrated imaging 3D display to realize dual-view display, on the contrary, the dual-view display can increase the viewing angle of the integrated imaging 3D display. [0003] The holographic optical element is an optical element with a lens function produced based on the principle of reflective volume holography....

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Problems solved by technology

[0002] Integrated imaging 3D display has the advantages of continuous viewpoint, full parallax, no visual fatigue and no need for auxiliary equipment, but there are also problems such as narrow viewing angle

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