Paper
15 May 2012 Holographic optical elements based on edge-lit holograms
Wei-Chia Su, Ming-Hsun Tsai, Hiu-Tzu Lin
Author Affiliations +
Abstract
A holographic optical element (HOE) simultaneously accompanied with light guiding and beam shaping function is implemented with edge-lit holograms in this study. This holographic optical element is generated in a polymer-dispersed- liquid-crystal (PDLC) film with 20μm thickness. In the holographic reconstruction process of the HOE, the wavefronts emitted from the light source will propagate to the HOE and a quasi collimation diffraction beam can be obtained from this device. We demonstrate two applications of edge-lit HOE in this study. One demonstration is a head-mounted display (HMD) system, and the other is an illumination device for display holograms.
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Wei-Chia Su, Ming-Hsun Tsai, and Hiu-Tzu Lin "Holographic optical elements based on edge-lit holograms", Proc. SPIE 8429, Optical Modelling and Design II, 842920 (15 May 2012); https://doi.org/10.1117/12.922169
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KEYWORDS
Holographic optical elements

Holograms

Head-mounted displays

Collimation

Spherical lenses

Holography

Diffraction

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