Holography has produced many spectacular displays for educational, commercial, scientific and artistic purposes; but it must continue to advance technically and esthetically to establish itself as an impressive and versatile medium. Here we examine the status of holography as an imaging medium, and some prospects for larger, brighter, clearer, deeper and more colorful displays. The properties of available photosensitive materials and light sources, and reasonable costs, impose a structure of compromises on practical imaging.
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