#6710. Holographic projection with an extended depth of focus for highly tilted screens

August 2026publication date
Proposal available till 19-05-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Mechanical Engineering;
Electrical and Electronic Engineering;
Atomic and Molecular Physics, and Optics;
Electronic, Optical and Magnetic Materials;
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Abstract:
Although holographic projection is still gaining its momentum, it will most likely be realized as short-throw projection on highly tilted screens. This will require the depth of focus significantly larger than the native one coming from the f-number of the optical setup. Here we present a simple and lossless method of extending the depth of focus by a modified holographic encoding comprising virtual optical elements, allowing sharp imaging on a screen tilted by 56°. Numerical simulations and experimental validations on a spatial light modulator are given. The experiment proved the increase of field depth which barely compromises the image quality and its brightness.
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