Stereogram implemented with a holographic image splitter

Abstract

A special holographic optical element (HOE) which is used as an image splitter is developed to generate a stereogram on a 2.2-in. liquid crystal display panel. The special designed holographic optical element can be attached on the conventional panel directly to replace the traditional image splitter in a stereoscopic display panel. Experimental results show that two images corresponding to slightly different viewing angles displayed on a panel can be separated effectively and can be delivered to the right eye and left eye of an observer individually. The diffraction efficiency for individual right and left image in this developed holographic optical element is about 43%, and the contrast ratio of the diffracted images induced by cross talk is larger than 60%. Theoretical analyses show the proposed technique generates good contrast ratio and brightness performance for stereogram application.

5.4: The Autostereoscopic System with Diffractive Optical Elements

“…In this paper, we proposed the HOE [8] and the DOE as the beam splitter to produce auto-stereopsis on a LCD panel. The beam splitter is located at the panel to separate and direct light for images with different viewing angles to propagate into corresponding eyes.…”

Speckle reduction by combination of digital filter and optical suppression in a modified Gerchberg–Saxton algorithm computer-generated hologram

“…Such a recording process replaces traditional holography with computer generation [5][6][7]. The advantages are in the reduction of traditional holographic errors and modulation with holographic photosensitive materials [8,9].…”

Full Color Holographic Optical Element Fabrication for Waveguide-type Head Mounted Display Using Photopolymer

“…It is a diffraction grating that can be used as a mirror, lens and directional diffuser in many display systems [4,5]. T. Ando et al proposed a HMD that was fabricated using HOEs [6].…”